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Dr. Richard Kaufman
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Replacing Opiates with Cannabis is Finally Becoming a Reality: Where do we go from Here?

By Dr. Richard Kaufman
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Dr. Richard Kaufman

Opiate abuse is a far-reaching international public health issue, impacting tens of thousands of people every year in the United States alone. As the epidemic continues to spread, the medical community is faced with the immense task of researching and developing safer, non-addictive treatment alternatives for patients of chronic pain and other ailments. The controversial and oft-debated notion of cannabis as an opiate alternative has become increasingly well-researched and gained considerable credibility in recent years. The new challenge lies in advancing the cannabis industry to the point of being a legitimate medicine that can be prescribed and administered by doctors.

Opioids are among the most commonly prescribed medical treatments for severe chronic pain, yet prescription opioid overdoses killed more than 165,000 Americans between 1999 and 2014 according to the Department of Health and Human Services. In fact, the health and social costs of opioids are estimated to be as much as $55 billion a year. As such, it has become more imperative than ever that mainstream medical practitioners take notice of the cannabis plant’s powerful healing properties and shift away from potentially harmful pharmaceutical medications.

Dr. Richard Kaufman
Dr. Richard Kaufman, co-founder and chief science officer of Nanosphere Health Sciences.

The evidence of cannabis’ safety and efficacy is well established. For instance, in a literature review of 38 studies evaluating medical cannabis’ efficacy for treating pain, 71 percent concluded that cannabinoids had empirically demonstrable and statistically significant pain-relieving effects. In addition, a 2015 meta-analysis of 79 studies found a 30 percent or greater reduction of pain with the use of cannabinoids compared to placebos. Further, an analysis of a decade of randomized, double-blind placebo-controlled clinical trials on cannabis for treating pain concluded that cannabis should be a first line treatment for patients with painful neuropathy and other serious and debilitating symptoms, who often do not respond to other available medications.

Not only is cannabis demonstrably safe and effective, but numerous studies also present compelling evidence that the prescription of opiates has dropped sharply in U.S. states and countries that have legalized medical cannabis. For example, a study in the Clinical Journal of Pain followed 176 chronic pain patients in Israel over seven months. Researchers found that 44 percent of participants stopped taking prescription opioids within seven months after starting medical cannabis. Patients cited the following reasons for using cannabis instead of pharmaceutical drugs: 65 percent reported less adverse side effects, 57 percent cited better symptom management and 34 percent found that cannabis had less withdrawal potential than their other medications.The evidence of cannabis’ safety and efficacy is well established.

The tide is quickly turning as many respected doctors are beginning to advocate for the tremendous medical potential of cannabis as a replacement for prescription pills. That said, if the cannabis industry is to help solve the crisis inflicted by modern pharmaceutical painkillers, we must develop next-generation scientifically formulated products and advocate to improve their accessibility.

Inhalation and oral methods of cannabis consumption have no reliable dosage as medicine, rendering them unfit for administration by health professionals. These mainstream consumption methods also have extremely low bioavailability and bioactivity. Bioavailability for ingested cannabis products is only 6 percent and for inhalation methods can be as low as 2 percent. Oral absorption of THC is slow and unpredictable, with peak blood concentration occurring 1–5 hours post dose. Similarly, inhalation methods can take up to two hours to have any effect. The next phase of the medical cannabis industry must focus on fixing problems that prevent cannabis from being a universally recognized health tool. Fortunately, scientists are making major advancements in cannabis delivery technologies, offering novel and innovative administration methods that have proven both effective and reliable.

With products like Evolve’s NanoSerum™ representing a promising solution to help reduce the morbidity and mortality associated with prescription opioid use and abuse, meaningful progress is already underway. It’s been a long and challenging road to arrive at this point, but our efforts are only just beginning. Achieving long-term change on a national and international scale will require professionals from all levels of the cannabis, science and medical communities to push for advanced product offerings that provide consistent, standardized dosing in healthier, smokeless modes of delivery.

A More Effective and Efficient Approach to Purer Cannabidiol Production Using Centrifugal Partition Chromatography

By Lauren Pahnke
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Many physicians today treat their patients with cannabidiol (CBD, Figure 1), a cannabinoid found in cannabis. CBD is more efficacious over traditional medications, and unlike delta-9 tetrahydrocannbinol (THC), the main psychoactive compound in cannabis, CBD has no psychoactive effects. Researchers have found CBD to be an effective treatment for conditions such as cancer pain, spasticity in multiple sclerosis, and Dravet Syndrome, a form of epilepsy.

CBD is still considered an unsafe drug under federal law, but to meet the medical demand, 17 states in the US recently passed laws allowing individuals to consume CBD for medical purposes. A recent survey found that half of medicinal CBD users rely on the substance by itself for treatment. As doctors start using CBD to treat more patients, the demand for CBD is only expected to rise, and meeting that demand can pose challenges for manufacturers who are not used to producing such high quantities of CBD. Furthermore, as CBD-based drugs become more popular, the US Food and Drug Administration (FDA) will likely require manufacturers to demonstrate they can produce pure, high-quality products.

cannabidiol
Figure 1. The structure of cannabidiol, one of 400 active compounds found in cannabis.

Most manufacturers use chromatography techniques such as high performance liquid chromatography (HPLC) or flash chromatography to isolate compounds from natural product extracts. While these methods are effective for other applications, they are not, however, ideal for CBD isolate production. Crude cannabis oil contains some 400 potentially active compounds and requires pre-treatment prior to traditional chromatography purification. Both HPLC and flash chromatography also require silica resin, an expensive consumable that must be replaced once it is contaminated due to irreversible absorption of compounds from the cannabis extract. All of these factors limit the production capacity for CBD manufacturers.

Additionally, these chromatography methods use large quantities of solvents to elute natural compounds, which negatively impacts the environment.

A Superior Chromatography Method

Centrifugal partition chromatography (CPC) is an alternative chromatography method that can help commercial CBD manufacturers produce greater quantities of pure CBD more quickly and cleanly, using fewer materials and generating less toxic waste. CPC is a highly scalable CBD production process that is environmentally and economically sustainable.

The mechanics of a CPC run are analogous to the mechanics of a standard elution using a traditional chromatography column. While HPLC, for instance, involves eluting cannabis oil through a resin-packed chromatography column, CPC instead elutes the oil through a series of cells embedded into a stack of rotating disks. These cells contain a liquid stationary phase composed of a commonly used fluid such as water, methanol, or heptane, which is held in place by a centrifugal force. A liquid mobile phase migrates from cell to cell as the stacked disks spin. Compounds with greater affinity to the mobile phase are not retained by the stationary phase and pass through the column faster, whereas compounds with a greater affinity to the stationary phase are retained and pass through the column slower, thereby distributing themselves in separate cells (Figure 2).

Figure 2- CPC
Figure 2. How CPC isolates compounds from complex, natural mixtures. As the column spins, the mobile phase (yellow) moves through each cell in series. The compounds in the mobile phase (A, B, and C) diffuse into the stationary phase (blue) at different rates according to their relative affinities for the two phases.

A chemist can choose a biphasic solvent system that will optimize the separation of a target compound such as CBD to extract relatively pure CBD from a cannabis extract in one step. In one small-scale study, researchers injected five grams of crude cannabis oil low in CBD content into a CPC system and obtained 205 milligrams of over 95% pure CBD in 10 minutes.

Using a liquid stationary phase instead of silica imbues CPC with several time and cost benefits. Because natural products such as raw cannabis extract adhere to silica, traditional chromatography columns must be replaced every few weeks. On the other hand, a chemist can simply rinse out the columns in CPC and reuse them. Also, unlike silica columns, liquid solvents such as heptane used in CPC methods can be distilled with a rotary evaporator and recycled, reducing costs.

Environmental Advantages of CPC

The solvents used in chromatography, such as methanol and acetonitrile, are toxic to both humans and the environment. Many environmentally-conscious companies have attempted to replace these toxic solvents with greener alternatives, but these may come with drawbacks. The standard, toxic solvents are so common because they are integral for optimizing purity. Replacing a solvent with an alternative could, therefore, diminish purity and yield. Consequently, a chemist may need to perform additional steps to achieve the same quality and quantity achievable with a toxic solvent. This produces more waste, offsetting the original intent of using the green solvent.

CPC uses the same solvents as traditional chromatography, but it uses them in smaller quantities. Furthermore, as previously mentioned, these solvents can be reused. Hence, the method is effective, more environmentally-friendly, andeconomically feasible.

CPC’s Value in CBD Production

As manufacturers seek to produce larger quantities of pure CBD to meet the demand of patients and physicians, they will need to integrate CPC into their purification workflows. Since CPC produces a relativelyduct on a larger scale, it is equipped to handle the high-volume needs of a large manufacturer. Additionally, because it extracts more CBD from a given volume of raw cannabis extract, and does not use costly silica or require multiple replacement columns, CPC also makes the process of industrial-scale CBD production economically sustainable. Since it also uses significantly less solvent than traditional chromatography, CPC makes it financially feasible to make the process of producing CBD more environmentally-friendly.

Suggested Reading:

CPC 250: Purification of Cannabidiol from Cannabis sativa

Introduction to Centrifugal Partition Chromatography

NCIA Federal Policy Update: Q&A with Aaron Smith

By Aaron G. Biros
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The Justice Department rescinding the Cole Memo, the Omnibus bill including Leahy Amendment protections, a host of potential bills for federal cannabis policy change: a lot has been happening in Washington D.C. recently with respect to cannabis business. With the National Cannabis Industry Association’s (NCIA) Cannabis Business Summit in San Jose fast approaching, as well as the 8th Annual Cannabis Industry Lobby Days, we thought it would be a good time to hear what NCIA has been up to recently.

We sat down with Aaron Smith, co-founder and executive director of NCIA, to learn what the organization is working on right now and how we might be able to make some real federal policy changes for cannabis.

Aaron Smith, executive director of NCIA

CannabisIndustryJournal: With the Department of Justice rescinding the Cole Memo, working as a group to tackle federal policy reform is now more important than ever. Can you give us a 30,000-foot view of what NCIA is doing right now to help us work together as a group and affect policy change?

Aaron Smith: So our team in D.C. consists of three full-time staff members as well as lobbying consultants, who have been really focused on the appropriations process, which is the way we’ve been able to affect change in such a dysfunctional congress by affecting the budget and restricting law enforcement activities. The medical marijuana protections, formerly known as the Rohrabacher–Farr amendment, [and now known as the Leahy Amendment] prevent the Department of Justice from using funds to prosecute state-legal medical marijuana businesses and patients. Going into the fiscal year, thankfully after a lot of hard work, we were able to include protections for medical marijuana, which just happened last week. Now we are really focused on the next year’s fiscal budget, working to hopefully expand those protections to cover all state-legal marijuana activity so the Department of Justice cannot go after all state-legal cannabis businesses, including those businesses in the recreational cannabis industry, which is certainly one of our priorities right now. As Congress starts to transition into fiscal year 2019 appropriations, the D.C. team is working with Capitol Hill staff and other cannabis groups in D.C. to ensure an organized, uniformed strategy through the appropriations process.

CIJ: What are some other priorities for NCIA in the House and Senate right now? What is NCIA focusing its resources on?

Smith: Another big issue for us is the 280E section of tax code, which prevents legal cannabis businesses from deducting normal business expenses. A lot of these businesses face upwards of a 70 percent effective tax rate. Working with our champions in Congress, we are working on reforms to 280E so we can make normal deductions and be treated fairly, just like any other legal business. The Small Business Tax Equity Act of 2017 addresses this issue and has bipartisan support in the House and the Senate right now, and we are working to build more support for that. This bill currently has 43 cosponsors in the House.

The other big issue for us right now is banking reform, which is a very high priority for NCIA as it affects most of our members. The Secure and Fair Enforcement (SAFE) Banking Act of 2017 provides a “safe harbor” and additional protections for depository institutions who provide “financial product or service” to a covered business. This bill currently has 89 cosponsors in the House. NCIA’s D.C. team and lobbying consultants continue to push for cosponsors and support on these important bills.

CIJ: I saw that the Omnibus spending package includes Leahy Amendment protections for cannabis businesses through September. Would you consider that a win in your book? How are you working to maybe extend those protections?

Smith: It was a big win for us. It doesn’t always seem like it because it is really just maintaining the status quo, but we are up against an Attorney General lobbying congress to strip those protections and the house didn’t allow us to vote on it. But by including the Leahy Amendment in the budget we are not only protecting medical marijuana patients and businesses, but we sent a clear signal to Congress that the intention is not to go backwards. We have been playing some defense recently given the current administration’s policies. But we are working with our allies in congress to negotiate those protections for recreational businesses as well. Negotiations for that are just getting started now.

The fiscal year ends September 30th so the protections are in place for now, but Congress needs to pass another budget for the next fiscal year with those protections included. It’s hard to say when the vote will be, because they haven’t been passing budgets in a timely manner, but usually it’s in May or June, right around our Lobby Days. This is what we are focused on now, getting as many of these cannabis businesses and NCIA members out there to really show Congress what the legal industry looks like.

CIJ: NCIA is hosting the 8th Annual Cannabis Industry Lobby Days a little more than a month from now; do you have any goals for that event? Is there anything in particular you hope to accomplish there? How can cannabis businesses get involved?

Smith: The primary purpose of Lobby Days is to show members of Congress and their staff (many of whom have never had exposure to cannabis businesses) what a responsible industry really looks like. And it lets business owners come tell Congress how current policies and laws are affecting their business. It is great for the cause and helps change minds in DC.

Last year, we came out of Lobby Days with several new co-sponsors of cannabis legislation and we hope to get that again this year. It is a great opportunity to connect and network as well; some of the top people in the industry will be there.

The Necessity of Food Safety Programs in Cannabis Food Processing

By Gabe Miller
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When processing cannabis, in any form, it is critical to remember that it is a product intended for human consumption. As such, strict attention must also be paid to food safety as well. With more and more states legalizing either medical or recreational cannabis, the potential for improper processing of the cannabis triggering an illness or death to the consumer is increasing.

The FDA Food Safety Modernization Act (FSMA) is the new food safety law that has resulted in seven new regulations, many which directly or indirectly impact the production and processing of cannabis. Under FSMA regulations, food processors must identify either known or reasonably foreseeable biological, chemical or physical hazards, assess the risks of each hazard, and implement controls to minimize or prevent them. The FSMA Preventive Controls for Human Foods (PCHF) regulation contains updated food “Good Manufacturing Practices (cGMPs) that are in many cases made a requirement in a state’s medical or recreational cannabis laws. These cGMPs can be found in 21 CFR 117 Subpart B.

It is imperative that cannabis manufacturers have a number of controls in place including management of suppliers providing the raw material.Food safety risks in cannabis processing could originate from bacteria, cleaning or agricultural chemicals, food allergens or small pieces of wood, glass or metal. The hazards that must be addressed could be natural, unintentionally introduced, or even intentionally introduced for economic benefit, and all must be controlled.

It is unlikely that high heat, used in other food products to remove bad bacteria would be used in the processing of cannabis as many of its desirable compounds are volatile and would dissipate under heating conditions. Therefore, any heat treatment needs to be carefully evaluated for effectiveness in killing bacterial pathogens while not damaging the valuable constituents of cannabis. Even when products are heated above temperatures that eliminate pathogens, if the raw materials are stored in a manner that permits mold growth, mycotoxins produced by molds that have been linked to cancer could be present, even after cooking the product. Storage of raw materials might require humidity controls to minimize the risk of mold. Also, pesticides and herbicides applied during the growth and harvesting of cannabis would be very difficult to remove during processing.

It is imperative that cannabis manufacturers have a number of controls in place including management of suppliers providing the raw material. Other controls that must be implemented include proper cannabis storage, handling and processing as well as food allergen control, and equipment/facility cleaning and sanitation practices. Processing facilities must adhere to Good Manufacturing Practices (GMP’s) for food processing, including controls such as employee hand washing and clothing (captive wear, hair nets, beard nets, removal of jewelry, and foot wear) that might contribute to contamination. A Pest Control plan must be implemented to prevent fecal and pathogen contamination from vermin such as rodents, insects, or birds.

Processing facilities must be designed for proper floor drainage to prevent standing water. Processing air should be properly filtered with airflow into the cannabis processing facility resulting in a slightly higher pressure than the surrounding air pressure, from the clean process area outwards. Toilet facilities with hand washing are essential, physically separated from the process areas. Food consumption areas must also be physically separate from processing and bathroom areas and have an available, dedicated hand sink nearby. Employee training and company procedures must be effective in keeping food out of the processing area. Labels and packaging must be stored in an orderly manner and controlled to prevent possible mix-up.Cleaning of the processing equipment is critical to minimize the risk of cross contamination and microbial growth.

Written food safety operational procedures including prerequisite programs, standard operating procedures (SOP’s), etc. must be implemented and monitored to ensure that the preventive controls are performed consistently. This could be manual written logs, electronic computerized data capture, etc., to ensure processes meet or exceed FSMA requirements.

A written corrective action program must be in place to ensure timely response to food safety problems related to cannabis processing problems when they occur and must include a preventive plan to reduce the chance of recurrence. The corrective actions must be documented by written records.

Supply chain controls must be in place. In addition, a full product recall plan is required, in the event that a hazard is identified in the marketplace to provide for timely recall of the contaminated product.

Cleaning of the processing equipment is critical to minimize the risk of cross contamination and microbial growth. The processing equipment must be designed for ease of cleaning with the minimum of disassembly and should conform to food industry standards, such as the 3-A Sanitary Standards, American Meat Institute’s Equipment Standards, the USDA Equipment Requirements, or the Baking Industry Sanitation Standards Committee (BISSC) Sanitation Standards ANSI/ASB/Z50.2-2008.

Serious food borne contaminations have occurred in the food industry, and cannabis processing is just as susceptible to foodborne contamination. These contaminations are not only a risk to consumer health, but they also burden the food processors with significant costs and potential financial liability.

Anyone processing cannabis in any form must be aware of the state regulatory requirements associated with their products and implement food safety programs to ensure a safe, desirable product for their customers.

dSPE cleanups

The Grass Isn’t Always Greener: Removal of Purple Pigmentation from Cannabis

By Danielle Mackowsky
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dSPE cleanups
strains
Cannabis strains used (clockwise from top left): Agent Orange, Tahoe OG, Blue Skunk, Grand Daddy and Grape Drink

Cannabis-testing laboratories have the challenge of removing a variety of unwanted matrix components from plant material prior to running extracts on their LC-MS/MS or GC-MS. The complexity of the cannabis plant presents additional analytical challenges that do not need to be accounted for in other agricultural products. Up to a third of the overall mass of cannabis seed, half of usable flower and nearly all extracts can be contributed to essential oils such as terpenes, flavonoids and actual cannabinoid content1. The biodiversity of this plant is exhibited in the over 2,000 unique strains that have been identified, each with their own pigmentation, cannabinoid profile and overall suggested medicinal use2. While novel methods have been developed for the removal of chlorophyll, few, if any, sample preparation methods have been devoted to removal of other colored pigments from cannabis.

QuEChERS
Cannabis samples following QuEChERS extraction

Sample Preparation

Cannabis samples from four strains of plant (Purple Drink, Tahoe OG, Grand Daddy and Agent Orange) were hydrated using deionized water. Following the addition of 10 mL acetonitrile, samples were homogenized using a SPEX Geno/Grinder and stainless steel grinding balls. QuEChERS (Quick, Easy, Cheap, Effective, Rugged and Safe) non-buffered extraction salts were then added and samples were shaken. Following centrifugation, an aliquot of the supernatant was transferred to various blends of dispersive SPE (dSPE) salts packed into centrifugation tubes. All dSPE tubes were vortexed prior to being centrifuged. Resulting supernatant was transferred to clear auto sampler vials for visual analysis. Recoveries of 48 pesticides and four mycotoxins were determined for the two dSPE blends that provided the most pigmentation removal.

Seven dSPE blends were evaluated for their ability to remove both chlorophyll and purple pigmentation from cannabis plant material:

  • 150 mg MgSO4, 50 mg PSA, 50 mg C18, 50 mg Chlorofiltr®
  • 150 mg MgSO4, 50 mg C18, 50 mg Chlorofiltr®
  • 150 mg MgSO4, 50 mg PSA
  • 150 mg MgSO4, 25 mg C18
  • 150 mg MgSO4, 50 mg PSA, 50 mg C18
  • 150 mg MgSO4, 25 mg PSA, 7.5 mg GCB
  • 150 mg MgSO4, 50 mg PSA, 50 mg C18, 50 mg GCB

Based on the coloration of the resulting extracts, blends A, F and G were determined to be the most effective in removing both chlorophyll (all cannabis strains) and purple pigments (Purple Drink and Grand Daddy). Previous research regarding the ability of large quantities of GCB to retain planar pesticides allowed for the exclusion of blend G from further analyte quantitation3. The recoveries of the 48 selected pesticides and four mycotoxins for blends A and F were determined.

dSPE cleanups
Grand Daddy following various dSPE cleanups

Summary

A blend of MgSO4, C18, PSA and Chlorofiltr® allowed for the most sample clean up, without loss of pesticides and mycotoxins, for all cannabis samples tested. Average recovery of the 47 pesticides and five mycotoxins using the selected dSPE blend was 75.6% were as the average recovery when including GCB instead of Chlorofiltr® was 67.6%. Regardless of the sample’s original pigmentation, this blend successfully removed both chlorophyll and purple hues from all strains tested. The other six dSPE blends evaluated were unable to provide the sample clean up needed or had previously demonstrated to be detrimental to the recovery of pesticides routinely analyzed in cannabis.

References

(1)           Recommended methods for the identification and analysis of cannabis and cannabis products, United Nations Office of Drugs and Crime (2009)

(2)            W. Ross, Newsweek, (2016)

(3)            Koesukwiwat, Urairat, et al. “High Throughput Analysis of 150 Pesticides in Fruits and Vegetables Using QuEChERS and Low-Pressure Gas Chromatography Time-of-Flight Mass Spectrometry.” Journal of Chromatography A, vol. 1217, no. 43, 2010, pp. 6692–6703., doi:10.1016/j.chroma.2010.05.012.

HACCP

Hazard Analysis and Critical Control Points (HACCP) for the Cannabis Industry: Part 1

By Kathy Knutson, Ph.D.
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HACCP

Hazard Analysis and Critical Control Points (HACCP) Defined

Farm-to-fork is a concept to describe the control of food safety starting in the fields of a farm and ending with deliciousness in my mouth. The more that is optimized at every step, the more food safety and quality are realized. Farm-to-fork is not a concept reserved for foodies or “eat local” food campaigns and applies to all scales of food manufacture. HACCP is like putting the last piece of a huge puzzle in the middle and seeing the whole picture develop. HACCP is a program to control food safety at the step of food processing. In states where cannabis is legal, the state department of public health or state department of agriculture may require food manufacturers to have a HACCP plan. The HACCP plan is a written document identifying food safety hazards and how those hazards are controlled by the manufacturer. While there are many resources available for writing a HACCP plan, like solving that puzzle, it is a do-it-yourself project. You can’t use someone else’s “puzzle,” and you can’t put the box on a shelf and say you have a “puzzle.”

HACCP is pronounced “ha” as in “hat” plus “sip.”

(Say it aloud.)

3-2-1 We have liftoff.

The history of HACCP starts not with Adam eating in the garden of Eden but with the development of manned missions to the moon, the race to space in the 1950s. Sorry to be gross, but imagine an astronaut with vomiting and diarrhea as a result of foodborne illness. In the 1950s, the food industry relied on finished product testing to determine safety. Testing is destructive of product, and there is no amount of finished product testing that will determine food is safe enough for astronauts. Instead, the food industry built safety into the process. Temperature was monitored and recorded. Acidity measured by pH is an easy test. Rather than waiting to test the finished product in its sealed package, the food industry writes specifications for ingredients, ensures equipment is clean and sanitized, and monitors processing and packaging. HACCP was born first for astronauts and now for everyone.HACCP

HACCP is not the only food safety program.

If you are just learning about HACCP, it is a great place to start! There is a big world of food safety programs. HACCP is required by the United States Department of Agriculture for meat processors. The Food and Drug Administration (FDA) requires HACCP for seafood processing and 100% juice manufacture. For all foods beyond meat, seafood and juice, FDA has the Food Safety Modernization Act (FSMA) to enforce food safety. FSMA was signed in 2011 and became enforceable for companies with more than 500 employees in September of 2016; all food companies are under enforcement in September 2018. FSMA requires all food companies with an annual revenue greater than $1 million to follow a written food safety plan. Both FDA inspectors and industry professionals are working to meet the requirements of FSMA. There are also national and international guidelines for food safety with elements of HACCP which do not carry the letter of law.

The first step in HACCP is a hazard analysis.

Traditionally HACCP has focused on processing and packaging. Your organization may call that manufacturing or operations. In a large facility there is metering of ingredients by weight or volume and mixing. A recipe or batch sheet is followed. Most, but not all, products have a kill step where high heat is applied through roasting, baking, frying or canning. The food is sealed in packaging, labeled, boxed and heads out for distribution. For your hazard analysis, you identify the potential hazards that could cause injury or illness, if not controlled during processing. Think about all the potential hazards:

  • Biological: What pathogens are you killing in the kill step? What pathogens could get in to the product before packaging is sealed?
  • Chemical: Pesticides, industrial chemicals, mycotoxins and allergens are concerns.
  • Physical: Evaluate the potential for choking hazards and glass, wood, hard plastic and metal.

The hazards analysis drives everything you do for food safety.

I cannot emphasize too much the importance of the hazard analysis. Every food safety decision is grounded in the hazard analysis. Procedures will be developed and capital will be purchased based on the hazard analysis and control of food safety in your product. There is no one form for the completion of a hazard analysis.

HACCP risk matrix
A risk severity matrix. Many HACCP training programs have these.

So where do you start? Create a flow diagram naming all the steps in processing and packaging. If your flow diagram starts with Receiving of ingredients, then the next step is Storage of ingredients; include packaging with Receiving and Storage. From Storage, ingredients and packaging are gathered for a batch. Draw out the processing steps in order and through to Packaging. After Packaging, there is finished product Storage and Distribution. Remember HACCP focuses on the processing and packaging steps. It is not necessary to detail each step on the flow diagram, just name the step, e.g. Mixing, Filling, Baking, etc. Other supporting documents have the details of each step.

For every step on the flow diagram, identify hazards.

Transfer the name of the step to the hazard analysis form of your choice. Focus on one step at a time. Identify biological, chemical and physical hazards, if any, at that step. The next part is tricky. For each hazard identified, determine the probability of the hazard occurring and severity of illness or injury. Some hazards are easy like allergens. If you have an ingredient that contains an allergen, the probability is high. Because people can die from ingestion of allergens when allergic, the severity is high. Allergens are a hazard you must control. What about pesticides? What is the probability and severity? I can hear you say that you are going to control pesticides through your purchasing agreements. Great! Pesticides are still a hazard to identify in your hazard analysis. What you do about the hazard is up to you.

Total Yeast & Mold Count: What Cultivators & Business Owners Need to Know

By Parastoo Yaghmaee, PhD
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Editor’s note: This article should serve as a foundation of knowledge for yeast and mold in cannabis. Beginning in January 2018, we will publish a series of articles focused entirely on yeast and mold, discussing topics such as TYMC testing, preventing yeast and mold in cultivation and treatment methods to reduce yeast and mold.

Cannabis stakeholders, including cultivators, extractors, brokers, distributors and consumers, have been active in the shadows for decades. With the legalization of recreational adult use in several states, and more on the way, safety of the distributed product is one of the main concerns for regulators and the public. Currently, Colorado1, Nevada and Canada2 require total yeast and mold count (TYMC) compliance testing to evaluate whether or not cannabis is safe for human consumption. As the cannabis industry matures, it is likely that TYMC or other stringent testing for yeast and mold will be adopted in the increasingly regulated medical and recreational markets.

The goal of this article is to provide general information on yeast and mold, and to explain why TYMC is an important indicator in determining cannabis safety.

Yeast & Mold

Photo credit: Steep Hill- a petri dish of mold growth from tested cannabis

Yeast and mold are members of the fungi family. Fungus, widespread in nature, can be found in the air, water, soil, vegetation and in decaying matter. The types of fungus found in different geographic regions vary based upon humidity, soil and other environmental conditions. In general, fungi can grow in a wide range of pH environments and temperatures, and can survive in harsh conditions that bacteria cannot. They are not able to produce their own food like plants, and survive by breaking down material from their surroundings into nutrients. Mold cannot thrive in an environment with limited oxygen, while yeast is able to grow with or without oxygen. Most molds, if grown for a long enough period, can be detected visually, while yeast growth is usually detected by off-flavor and fermentation.

Due to their versatility, it is rare to find a place or surface that is naturally free of fungi or their spores. Damp conditions, poor air quality and darker areas are inviting environments for yeast and mold growth.

Cannabis plants are grown in both indoor and outdoor conditions. Plants grown outdoors are exposed to wider ranges and larger populations of fungal species compared to indoor plants. However, factors such as improper watering, the type of soil and fertilizer and poor air circulation can all increase the chance of mold growth in indoor environments. Moreover, secondary contamination is a prevalent risk from human handling during harvest and trimming for both indoor and outdoor-grown cannabis. If humidity and temperature levels of drying and curing rooms are not carefully controlled, the final product could also easily develop fungi or their growth by-product.

 What is TYMC?

TYMC, or total yeast and mold count, is the number of colony forming units present per gram of product (CFU/g). A colony forming unit is the scientific means of counting and reporting the population of live bacteria or yeast and mold in a product. To determine the count, the cannabis sample is plated on a petri dish which is then incubated at a specific temperature for three to five days. During this time, the yeast and mold present will grow and reproduce. Each colony, which represents an individual or a group of yeast and mold, produces one spot on the petri dish. Each spot is considered one colony forming unit.

Why is TYMC Measured?

TYMC is an indicator of the overall cleanliness of the product’s life cycle: growing environment, processing conditions, material handling and storage facilities. Mold by itself is not considered “bad,” but having a high mold count, as measured by TYMC, is alarming and could be detrimental to both consumers and cultivators. 

Aspergillus species niger
Photo: Carlos de Paz, Flickr

The vast majority of mold and yeast present in the environment are indeed harmless, and even useful to humans. Some fungi are used commercially in production of fermented food, industrial alcohol, biodegradation of waste material and the production of antibiotics and enzymes, such as penicillin and proteases. However, certain fungi cause food spoilage and the production of mycotoxin, a fungal growth by-product that is toxic to humans and animals. Humans absorb mycotoxins through inhalation, skin contact and ingestion. Unfortunately, mycotoxins are very stable and withstand both freezing and cooking temperatures. One way to reduce mycotoxin levels in a product is to have a low TYMC.

Aspergillus flavus on culture.
Photo: Iqbal Osman, Flickr

Yeast and mold have been found to be prevalent in cannabis in both current and previous case studies. In a 2017 UC Davis study, 20 marijuana samples obtained from Northern California dispensaries were found to contain several yeast and mold species, including Cryptococcus, Mucor, Aspergillus fumigatus, Aspergillus niger, and Aspergillus flavus.3 The same results were reported in 1983, when marijuana samples collected from 14 cannabis smokers were analyzed. All of the above mold species in the 2017 study were present in 13 out of 14 marijuana samples.4

Aspergillus species niger, flavus, and fumigatus are known for aflatoxin production, a type of dangerous mycotoxin that can be lethal.5 Once a patient smokes and/or ingests cannabis with mold, the toxins and/or spores can thrive inside the lungs and body.6, 7 There are documented fatalities and complications in immunocompromised patients smoking cannabis with mold, including patients with HIV and other autoimmune diseases, as well as the elderly.8, 9, 10, 11

For this reason, regulations exist to limit the allowable TYMC counts for purposes of protecting consumer safety. At the time of writing this article, the acceptable limit for TYMC in cannabis plant material in Colorado, Nevada and Canada is ≤10,000 CFU/g. Washington state requires a mycotoxin test.12 California is looking into testing for specific Aspergillus species as a part of their requirement. As the cannabis industry continues to grow and advance, it is likely that additional states will adopt some form of TYMC testing into their regulatory testing requirements.

References:

  1. https://www.colorado.gov/pacific/sites/default/files/Complete%20Retail%20Marijuana%20Rules%20as%20of%20April%2014%202017.pdf
  2. http://laws-lois.justice.gc.ca/eng/acts/f-27/
  3. https://www.ucdmc.ucdavis.edu/publish/news/newsroom/11791
  4. Kagen SL, Kurup VP, Sohnle PG, Fink JN. 1983. Marijuana smoking and fungal sensitization. Journal of Allergy & Clinical Immunology. 71(4): 389-393.
  5. Centre for Disease control and prevention. 2004 Outbreak of Aflatoxin Poisoning – Eastern and central provinces, Kenya, Jan – July 2004. Morbidity and mortality weekly report.. Sep 3, 2004: 53(34): 790-793
  6. Cescon DW, Page AV, Richardson S, Moore MJ, Boerner S, Gold WL. 2008. Invasive pulmonary Aspergillosis associated with marijuana use in a man with colorectal cancer. Diagnosis in Oncology. 26(13): 2214-2215.
  7. Szyper-Kravits M, Lang R, Manor Y, Lahav M. 2001 Early invasive pulmonary aspergillosis in a leukemia patient linked to aspergillus contaminated marijuana smoking. Leukemia Lymphoma 42(6): 1433 – 1437.
  8. Verweii PE, Kerremans JJ, Voss A, F.G. Meis M. 2000. Fungal contamination of Tobacco and Marijuana. JAMA 2000 284(22): 2875.
  9. Ruchlemer R, Amit-Kohn M, Raveh D, Hanus L. 2015. Inhaled medicinal cannabis and the immunocompromised patient. Support Care Cancer. 23(3):819-822.
  10. McPartland JM, Pruitt PL. 1997. Medical Marijuana and its use by the immunocompromised. Alternative Therapies in Health and Medicine. 3 (3): 39-45.
  11. Hamadeh R, Ardehali A, Locksley RM, York MK. 1983. Fatal aspergillosis associated with smoking contaminated marijuana, in a marrow transplant recipient. Chest. 94(2): 432-433.
  12. http://apps.leg.wa.gov/wac/default.aspx?cite=314-55-102

What’s Happening on Capitol Hill? Part 4: Banking & Tax Reform

By Brian Blumenfeld, J.D., M.A.
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To round out our federal reform review, we look at the bills introduced into the 115th Congress that attempt to resolve the banking and taxation problems faced by state-legal cannabis businesses. As this is perhaps the biggest thorn in the side of the cannabis industry, any movement by the feds on these issues will be welcomed. As it turns out, there are four proposals currently pending for fixing the broken cannabis financial services system, with each proposal comprising a pair of House-Senate companion bills. We look at each pair in turn.

Group 1

S. 1156 – SAFE Act; or, Secure and Fair Enforcement Banking Act

HR. 2215 – SAFE Act; or, Secure and Fair Enforcement Banking Act

Policy: These SAFE Acts would prohibit federal prosecutors and federal regulators from preventing or disciplining in any way a depository institution simply because that depository institution serviced a cannabis-related business.

Impact: The impact of these bills would be widespread for both the cannabis industry and for financial service institutions looking to capitalize on the cannabis industry. For banks, the bills would remove all of the barrier-risks that are now keeping them out of the cannabis business. Currently, the feds have handed down policy guidance to banks stating that as long as they submit what are called “Suspicious Activity Reports, or “SARs” for cannabis-related accounts, and conduct their due diligence to ensure such accounts are complying with state law, then those banks will not be pursued by federal law enforcement. The problem with this guidance is that it is only policy, it is not law, and so it can change on as little as an administrative whim. The protection from cannabis business risk, most banks have determined, is therefore temporary at best and illusory at worst. Passage of the SAFE Act would instantly change all of that and initiate a banking bonanza. Banks will be racing to profit off of what is amounting to a newly minted billion dollar industry. Cannabis businesses will benefit greatly from all of this. Not only will they be able to stop operating strictly in cash and have access to all the traditional financial services that other businesses heavily rely on, but they will also be the beneficiaries of a highly competitive, and therefore affordable and efficient, cannabis banking market.

Procedural Status:

S. 1156

  • Introduced: May 17, 2017 by Senator Jeff Merkley (D-OR)

    Senator Jeff Merkley (D-OR)
    Image: Medill DC, Flickr
  • Cosponsors: 3 Republicans, 7 Democrats, 1 Independent
  • Referred to Senate Committee on:
    • Banking, Housing, and Urban Affairs

HR. 2215

  • Introduced: April 27, 2017 by Representative Ed Perlmutter (D-CO)
  • Cosponsors: 7 Republicans, 44 Democrats
  • Referred to House Committees on:
    • Judiciary
      • Subcommittee on Crime, Terrorism, Homeland Security, and Investigations
    • Financial Services

Group 2

S777 – Small Business Tax Equity Act of 2017

HR 1810 – Small Business Tax Equity Act of 2017

Policy: These bills would carve out an exception to IRC 280E allowing cannabis businesses to deduct ordinary business expenses from their federally taxable revenues.

Impact: If enacted these bills will dramatically ease the tax burden for cannabis businesses. Currently, even when they are in perfect compliance with state law, cannabis businesses are not permitted to deduct ordinary business expenses. This means that net taxable revenues are, and are going to continue to be, substantially higher than net taxable revenues for businesses in any other industry. If enacted, profit margins—and therefore product quality, operational efficiency and innovation—are going to uptick across all states that have legalized.

Procedural Status:

Senator Ron Wyden (D-OR)
Image: JD Lasica, Flickr

S. 777

  • Introduced: March 30, 2017 by Senator Ron Wyden (D-OR)
  • Cosponsors: 1 Republican, 4 Democrats
  • Referred to Senate Committee on:
    • Finance

HR. 1810

  • Introduced: March 30, 2017 by Representative Carlos Curbelo (R-FL)
  • Cosponsors: 10 Republicans, 24 Democrats
  • Referred to House Committee on:
    • Ways and Means

Group 3

S. 780 – Responsibly Addressing the Marijuana Policy Gap Act of 2017

HR. 1824 – Responsibly Addressing the Marijuana Policy Gap Act of 2017

Policy: These bills combine to accomplish what each of the foregoing pairs accomplish separately. IRC 280E would no longer apply to state-legal cannabis businesses, and banking would become available for them as well. Additionally, advertising prohibitions in the CSA and the Communications act of 1934 would be removed, with the one exception that advertisements inducing travel from a state where cannabis is not legal to a legal cannabis state would be prohibited. Under Title II of the acts, barriers to federal bankruptcy proceedings would be removed. These bills would also reform the CSA as it relates to criminal liability for individuals, criminal record expungement and medical research for institutions, all of which are noteworthy but neither of which directly impact the legal cannabis industry.

Impact: For the impact of IRC reform, see “Impact” section under S.777/HR.180. For the impact of banking reform, see “Impact” section under S.1156/HR/2215.

By leaving advertising guidelines completely up to the states, we would probably witness the easing of advertising restrictions by the states. Currently, states have tight advertising rules because, after protecting consumers, they do not want their state’s legal cannabis industry to draw attention from the feds in any way. That concern would become moot and we could see more advertising in and across legalized states. This would drive competition across larger markets, in terms of both product and service quality and branding/marketing strategy.

Access to federal bankruptcy proceedings would clarify the landscape for all potential financial scenarios in the lifecycle of cannabis businesses, which in turn will ease uncertainty concerns of potential investors. The bankruptcy provision, combined with the banking provisions will undoubtedly open access to capital for cannabis businesses looking to grow operations and market presence.

Procedural Status:

S. 780

  • Introduced: March 30, 2017 by Senator Ron Wyden (D-OR)
  • Cosponsors: None
  • Referred to Senate Committee on:
    • Finance

HR. 1824

Representative Earl Blumenaur (D-OR)
Photo: Bridget Baker, 92bridges.com
  • Introduced: March 30, 2017 by Representative Earl Blumenaur (D-OR)
  • Cosponsors: 0 Republicans, 8 Democrats
  • Referred to House Committees on:
    • Judiciary
      • Crime, Terrorism, Homeland Security, and Investigations
      • Regulatory Reform, Commercial and Antitrust Law
      • Immigration and Border Security
    • Energy & Commerce
      • Health
    • Ways and Means
    • Financial Services
    • Natural Resources
      • Indian, Insular, and Alaskan Affairs
    • Education and the Workforce
    • Veterans’ Affairs
      • Health
    • Oversight and Government Reform

Group 4

S. 776 – Marijuana Revenue and Regulation Act

HR. 1823 – Marijuana Revenue and Regulation Act

Policy: Subchapters A and B of these bills would impose two additional federal tax requirements on cannabis businesses. The first would be an excise tax on all producers, beginning at a rate of 10%, and growing each year that a producer is in business to a cap of 25% at five years. The second tax would be an occupational tax of $1,000 per year, to be paid by the principals of any cannabis producer or warehouse proprietor. Significantly, these bills would also authorize the federal government to regulate operations in the industry.

Impact: The tax impact of these bills would be a straightforward additional tax that cannabis businesses would have to pay, on top of state and local taxes. The burden of additional taxes will inevitably impact profit margins, initial decisions on whether or not to enter the market and strategies for expansion and innovation. The impacts of federal authorization and regulatory requirements was discussed in the second article of the series, specifically under the “Impact” section of HR1841

Procedural Status:

S. 776

  • Introduced: March 30, 2017 by Senator Ron Wyden (D-OR)
  • Cosponsors: None
  • Referred to Senate Committee on:
    • Finance

HR. 1823

  • Introduced: March 30, 2017 by Representative Earl Blumenaur (D-OR)
  • Cosponsors: 0 Republicans, 8 Democrats
  • Referred to House Committee on:
    • Ways and Means
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EVIO Labs Expands To Florida

By Aaron G. Biros
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Currently, there are no lab testing regulations for Florida’s medical cannabis market. Chris Martinez, co-founder and chief operating officer of EVIO Labs Florida, a veteran-owned business, is looking to change that.

Chris Martinez, co-founder and president of EVIO Labs Florida

When Martinez co-founded EVIO Labs Florida, he saw the need for a dedicated cannabis lab to ensure safety and quality of medicine for patients in the state. Partnering with EVIO Labs to accomplish this goal, Martinez secured a 5,500 sq. ft. facility in Broward County to test for potency, pesticides, microbial contaminants, terpenes, residual solvents and heavy metals. Their lab, a first of its kind in the industry, qualifies as a true pharmaceutical-grade clean room. This week, Martinez also secured their 2nd laboratory location in the City of Gainsville, where they will test for potency, microbials, terpenes and residual solvents. And he isn’t doing it on the cheap. “Our Broward lab is powered by Shimadzu with over $1.2M in the latest testing equipment utilizing LCMS technology with the world’s fastest polarity switching time of 5 m/sec and scan speeds of 30,000 u/sec with UF Qarray sensitivity 90 times that of previously available technologies,” says Martinez.

Martinez, an entrepreneur at heart, started the lab with a team of experts to become the first completely cannabis-focused laboratory in Florida. Jorge Segredo, their head chemist and quality assurance director, has over 18 years of experience in the development of nutraceutical and pharmaceutical products under ISO and FDA accreditation. Segredo has helped launch three independent FDA-accredited laboratories and has extensive knowledge of HPLC, GCMS, LCMS, ICPMS technologies and development/validation of testing methods and procedures. Cynthia Brewer, their director of operations, was an active participant in the 2017 state legislative session and has been an advocate for medical cannabis, working with legislators on a suitable framework to increase patient access to cannabis.

The EVIO team is using instruments from Shimadzu

EVIO is one of the nation’s leaders in cannabis testing, research science and advisory services. It is an evolving network of laboratories with nine EVIO cannabis laboratories operating in five different states: Oregon, Colorado, Massachusetts, Florida and California. “After speaking with industry chemists around the country for months, the EVIO name was constantly brought up in conversation,” says Martinez. “When we spoke with the EVIO Team it was an easy decision for us to partner.” He says Lori Glauser, chief operating officer of EVIO, and William Waldrop, chief executive officer of EVIO, are truly visionaries in the cannabis industry.

According to Martinez, their licensing agreement with EVIO Labs (OTC:SGBYD) marked a first for the publicly traded company with exclusivity in the Florida market. The agreement includes proprietary testing methodologies, operating procedures, training and support.

In addition to testing cannabis for safety and quality, they are launching a technology platform called MJ Buddy, essentially a software tool that takes efficacy feedback from patients and uses testing and genetic data they gather from EVIO Labs across the country. “This will provide real data to the cannabis industry as to the medical benefits for thousands of patients in relation to the genotype and cannabinoid profiles of their medicine,” says Martinez.

Of the states that have legalized some form of cannabis, a large number of them have some lab testing regulations on the book, with some more comprehensive than others. Martinez says he hopes the Florida Department of Health, Office of Medical Marijuana Use follows some of the more thorough state programs, such as Oregon. His team has compiled a set of documents for regulators with recommendations for regulating the lab testing industry.

Without any regulations on paper, it is up to businesses to produce safe and quality medicine, without any oversight. EVIO Labs Florida follows FDA Good Laboratory Practices, has an ISO 17025:2005 accreditation pending, and is working on TNI 2016 accreditation.

When discussing what he wants to see happen with Florida’s regulatory framework, Martinez says the rules need to be specific to Florida. For example, due to the climate being so humid, microbial contaminant testing for things like yeast and mold will be particularly imperative. Because processing methods like butane and alcohol extraction are legal, he emphasizes the need for comprehensive residual solvents testing. “The most important regulation would be to have the laboratories select the samples at the MMTC facility and have the state randomly verify laboratory results to ensure accurate unbiased testing,” says Martinez.

In addition to that, he hopes their pesticide thresholds will be realistic and based on actual science. “We believe the public should receive carcinogenic data for products that are inhaled,” says Martinez. “Chemicals may be introduced into the processing of cannabis to vape liquid that may cause harm. This is important information for public health and communication of the risk related to exposure to such materials.” Martinez says EVIO Labs Florida was founded on the belief that through technology and science we can increase safety and patient outcomes.

emerald test retail

Colorado Approves Emerald Scientific Proficiency Tests for Regulatory Compliance in Cannabis Testing

By Aaron G. Biros
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emerald test retail

Emerald Scientific recently announced their proficiency-testing program, The Emerald Test, has been approved by Colorado as a third party provider for proficiency testing in licensed cannabis laboratories. The Emerald Test, held twice annually, is an inter-laboratory comparison and proficiency test (ILC-PT), allowing data to be collected pertaining to the performance of laboratories on a national scale. Proficiency testing is designed to measure how accurately laboratories perform and is a critical tool for quality assurance.

Colorado requires labs to participate in a proficiency-testing program in order to be certified to conduct required testing on cannabis and cannabis products for safety and quality. According to the press release, Colorado’s Marijuana Enforcement Division, under the Department of Revenue, conducted an evaluation process to determine which applicants could meet the performance standards for regulatory compliance concerning proficiency testing. The contract was awarded to Emerald Scientific following this evaluation process.

emerald test retailAccording to Ken Groggel, director of the Proficiency Testing Program at Emerald Scientific, a number of states have recognized the need for independent proficiency testing as a required piece of regulatory compliance. “The Emerald Test Inter-Laboratory Comparison/PT is state approved in Washington & Colorado for cannabis testing laboratory licensure,” says Groggel. “States with cannabis or hemp production, as well as labs in other countries are now actively participating in the Emerald Test as a tool for quality improvement, efficiency upgrades and product safety.” He says the Colorado Marijuana Enforcement Division has contracted with Emerald Scientific to provide third party PT programs for microbial contaminants, residual solvents and pesticides.

Ken Groggel, director of the Proficiency Testing Program at Emerald Scientific

Beginning in 2014, The Emerald Test has been offered twice a year and, in 2017, over 50 labs participated from 14 states and 2 countries. “Laboratories that have enrolled more than once have seen significant improvement in their results, an indicator of improved performance for industry customers,” says Groggel.

Proficiency testing is important for ensuring quality, safety and product content accuracy. “This should be the priority whether you are a grower, manufacturer, testing laboratory, regulatory entity, medical patient or adult use consumer,” says Groggel. It also helps labs meet regulatory requirements and achieve ISO 17025 accreditation. “Independent proficiency testing helps determine if the lab is able to deliver the services marketed to its customers,” says Groggel. “Regulatory agencies can use this information when licensing, monitoring & enforcing good science for public safety.”

As new states legalize cannabis and develop consumer protection regulations, proficiency testing programs can help labs demonstrate their commitment to responsible and accurate testing. “When PT results show the cannabis testing lab is capable it is up to the government to ensure accountability for performance on behalf of all its citizens,” says Groggel. Labs can enroll starting on September 25th in the Fall 2017 Emerald Test ILC/PT.