Test Results anyone? THC, THCA, Formula...

States that have legalized in cannabis require testing for potency and contaminants in cannabis, and lab-testing cannabis is quickly becoming an important part of the industry. The tests for pesticides, mold, contamination, etc. don’t require any new or special analytical techniques and are part of standard practice for other agricultural products as well. With the right lab equipment, chemists can measure cannabinoids to a certain degree of precision if they do it right, but the lack of a standardized way of looking at the data has everyone confused.

The subject of this issue is Δ9-tetrahydrocannabinolic acid (THCA), which occurs naturally in the plant. THCA needs to be heated so it changes into THC, the active form that gets you high. All cannabinoids occur naturally in their acid forms, that’s just how their enzymes make them. The difference between THCA and THC is a carboxy group. Upon smoking, cooking or vaping heat gets rid of the carboxy so THCA gives of CO2, losing about 12% of its weight in the process. Why does this matter for lab testing? Because THCA is heavier than THC, and lab results are given in percent mass.

The root of the confusion is the fact that different lab techniques give inherently different potency values. Depending on the lab, the analysis machine might use one of two separation methods: gas chromatography (GC) or liquid chromatography (LC).

GC happens at high temperatures, enough to completely decarboxylate all the cannabinoids in the mixture. The oven it happens in decarboxylates THCA before passing on to the detector, so it only picks up THC. This makes GC almost useless for testing edibles, because you need to be able to tell the difference between orally inactive THCA and active THC. Furthermore, decarboxylation happens incompletely at those high temperatures in the injector port, conserving no more than 70% of THCA, according to one study.

Liquid chromatography happens at room temperature and does not decarboxylate any cannabinoids, giving separate values for THCA and THC, which are always both present. These results need to be interpreted correctly, and hold hidden information about how the sample was handled and temperatures it has been exposed to.

Let’s look at an example. Given one lab result you could get three THC potency readings depending on how you read it, but only one method really stands to reason. Consider a made up lab result of Hypothetical OG that used LC, say it has 22.32% percent mass of THCA and 2.41% percent mass THC (active THC).

If you just look at the THCA value, you might think it has 22.32% THC. If you add the THC value to that, you might think this strain has 24.74% THC. Neither of these values is correct.

To get a real potency value you need to consider both THCA and THC, but with a correction factor for THCA before you add in THC. To calculate THCTOTAL:

THCtotal = (%THCA) x 0.877 + (%THC)

0.877 is the molecular mass (mm) of THC divided by that of THCA; this factor boils it down to a simple formula: take 87.7% of the value for THCA, then add on the value for THC. This formula also holds true for finding the active CBD content (CBD TOTAL) because CBD and THC have the exact same mm. Therefore the correct value of THC TOTAL for Hypothetical OG is 21.98%, the weighted average of THCA and THC.

To get a real measure of the potency of a strain of pot, you need to look at THC TOTAL. This is because the relative amounts of THCA and THC depend on the amount of heat the flower, dry bud or extract has been exposed to. Since this is always different, lab testing needs to see past this variable.

Since GC doesn’t work for edibles, many labs are switching to LC to test for edibles. If you know you’re looking at a lab test that used LC, you’ll need to use this formula to get a consistent value of THC TOTAL.

When looking at lab results, make sure to take this into consideration. Be suspicious of lab results that just give you one number for %THC. If the lab used GC, you won’t have this issue at all. The %THC given from a GC machine roughly reflects THC TOTAL.

Read the original article from High Times HERE.

Top 10 Cannabinoids

You’ve heard by now that marijuana is a powerful medicinal herb. But, just how powerful is it? The list of medical benefits for these top 10 cannabinoids seems endless. 

What is A Cannabinoid?

The term “cannabinoid” refers to  one of a number of chemical compounds found in the weed plant. If we want to get technical about things, the proper name for these plant-based molecules is “phytocannabinoid”. When you smoke or ingest marijuana, these are the chemicals that interact with cells in your body to produce medical benefits.

Primary Cannabinoids in Marijuana

1. THC

The Stoner’s Cookbook has written extensively on THC, so for the purposes of this article, we’ll highlight a few of the big points on this famous cannabinoid. THC is the abbreviation for Delta(9)-tetrahydrocannabinol. As most cannabis lovers probably know, THC is the primary psychoactive compound in marijuana. It’s what creates the high feeling weed has become so famous for.

The list of medical benefits of THC is a long one, but here are a few of the big ones to get us started:

• Alzheimer’s Disease
• Neuropathic pain
• Multiple Sclerosis
• Parkinson’s Disease
• PTSD
• Cancer
• Crohn’s Disease

For a more complete picture of this cannabinoid, be sure to check out our “What Is THC?” article.

2. CBD

CBD, short for cannabidiol, is the second most famous cannabinoid. Like THC, the list of medical benefits of this cannabinoid just keeps getting longer. Unlike THC, CBD is non-psychoactive. It’s also now legal in more states than its more controversial counterpart.

Once mainstream media learned that CBD had medical value, a whirlwind of cannabis research ensued. Just to give you a quick summary, here are a just a handful of conditions CBD can treat:

• Epilepsy
• Cancer
• Depression
• Anxiety
• Psychotic Disorders
• Chronic Pain
• Diabetes

This is just a small glimpse into the world of CBD. For more information, check out “Everything You Need To Know About CBD” and “5 Must-Know Facts About CBD“.

The Lesser Known Cannabinoids

3. CBC

Also known as Cannabichromene, CBC is the third most common cannabinoid in the marijuana plant overall. In some strains, CBC may even take dominance over CBD. Like CBD, cannabichromene is non-psychoactive. Here’s what you can expect from CBC:

Anti-Inflammatory

CBC is effective at fighting inflammation on its own, but 2010 research has found that it’s even more effective when combined with THC. This finding helps support the idea that cannabinoids work synergistically with each other. While scientists have been successful at finding and isolating over 100 different compounds in the marijuana plant, the strongest medicine is created when different components work in harmony with one another.

Anti-Tumor

When coupled with THC and other cannabinoids, CBC has also shown some promise in fighting breast cancer. The anti-tumor effects of CBC alone are not quite as exciting as the potential of CBD, THC, and CBG, but together they make for one powerful tumor-fighting combination.

Anti-Depressant

In the science world, there’s a sure-fire way to test if a rodent is depressed. You suspend it by its tail and watch to see how much it struggles to get away. The more it struggles, the more elevated the mood of the mouse. This test is known as the Tail Suspension Test (TST). Researchers from the University of Mississippifound that mice treated with CBC struggled significantly more than mice treated with other cannabinoids.

The amount the mice struggled also depended on how much CBC they were given. Mice given 40mg of CBC struggled less than mice that were given 80mgs.

Anti-Fungal

In a review of cannabinoid literature, author Ethan Russo reported that CBC was mildly anti-fungal.

Encourages Brain Growth

A 2013 study found that CBC may actually help you grow new brain cells. Regardless of your age, cells in certain portions of your brain continue to grow through a process known as neurogenesis. The portions affected are responsible for memory and learning. You run the risk of developing diseases like Alzheimers when your brain stops developing new cells in these areas.

4. CBN

Short for Cannabinol, this cannabinoid emerges when you’re dried flower has gone a bit stale. THCa breaks down into this compound over time. If you leave some bud out sitting out in the open air for too long, you’ll eventually have a product with larger amounts of CBN. CBN has been found to have these medical properties:

Appetite Stimulant

Researchers out of the UK found that CBN stimulated appetite in rats. During the testing period, rats treated with CBN ate significantly more than rats treated with cannabinoids CBD and CBG.

Antibiotic

CBN was one of the three cannabinoids identified by Italian researchers as being effective against antibiotic resistant MRSA infections.

Potential Medication for ALS Patients

A study conducted in 2005 found that CBN delayed symptom onset in mice that were genetically designed to have a rodent version of Lou Gehrig’s Disease. Lou Gehrig’s disease is also known as Amyotrophic Lateral Sclerosis (ALS). These findings show that CBN may be effective at easing symptoms for patients with degenerative, motor neural diseases.

Pain reliever

As early as 2002, Sweedish researchers found that cannabinol has strong pain-relieving effects. Interestingly enough, CBN and THC were the only cannabinoids that fought pain through the release of endorphins and by relaxing tense blood vessels.

Anti-Asthmatic

Featuring strong anti-inflammatory properties, research from 2003 found that CBN stopped allergy-related asthma in mice. The cannabinoid achieved this by boosting the rodents’ immune systems andeasing the inflammation associated with an asthma attack.

Sedative

Berkeley-based Steep Hill Labs has claimed that CBN may be the most sedative of all of the cannabinoids. The cannabis testing and research laboratory stated that a good dose of CBN is equivalent to 2.5 – 5mg of pharmaceutical sedative diazepam. Diazepam is also known as Valium.

Potential Medication for Glaucoma

Along with THC, CBN was effective at lowering the ocular pressure which produces blindness in glaucoma patients. This cannabinoid’s ability to decrease ocular hypertension may also point medical professionals in the right direction when it comes to understanding marijuana’s effect on blood pressure overall.

5. CBG

CBG is short for cannabigerol. This cannabinoid is found early on in the growth cycle, which makes it somewhat difficult to find in large quantities. CBG, however, is non-psychoactive. This means that it can be cultivated via hemp. The medical potential of CBG makes it a prime target for research these days. Here’s what the science says so far:

Antibiotic

Cannabigerol was another one of the cannabinoids tested on the MRSA virus in 2008. As far as antibiotic properties go, CBG was stronger than CBN and comparable to CBD. CBG is also known to be mildly anti-fungal. Research as early as 1982 found that isolated CBG is antimicrobial and kills various types of bacteria and fungi.

Possible Treatment for Psoriasis

This cannabinoid just-so-happens to be good for your skin. Not only does it help prevent the reddening of the skin, but it’s been shown to have therapeutic potential for skin conditions like Psoriasis.

Pain Reliever

CBG is reportedly a more potent pain reliever than THC.

Anti-Tumor

Back in 1998, Korean researchers found that CBG was effective at slowing the growth of cancerous cells in the mouth. More recent research published in the British Journal of Pharmacology found that CBG also had mild anti-tumor effects in prostate cancer cells. The study focused on non-THC cannabinoids. While CBG did have an effect on tumor growth, it was CBD that really shined through as a potential treatment for prostate cancer.

Antidepressant & Mood-Stabilizer

As early as 1975, researchers found that CBG prevented the uptake of amino acids that help regulate mood. The amino acid in question, GABA, was better regulated by CBG than THC or CBD.

Further studies have shown that CBG is a moderate anti-depressant, working to increase serotonin levels in your brain. The antidepressant effects of CBG were first found in 2006 in by Richard Musty and Richard Dayo who tests conducted on lab rats.

6. THCv

Short for tetrahydrocannabivarin, THCv is another cannabinoid that works in tandem with THC. Some studies cite that THCv has about 20% the psychoactive capacity as THC,  but recent research has shown that THCV actually mitigates some of the negative psychoactive impacts of THC. THCv’s medical properties include:

Anticonvulsant

Researchers out of Berkshire, UK put the anti-epileptic properties of THCV to the test in rat brains. First, they tested whether or not THCV stopped seizure-like activity in brain slices. THCv reduced the amount of convulsive “bursts” observed when the brain segments were treated with the compound before seizures were induced. They then tested whether or not the cannabinoid stopped convulsions in adult rats. They found that THCV significantly reduced seizure incidence.

Neuroprotective

If you’re familiar with smoking weed at all, then you know that you might be a little slowed down after smoking a high-THC strain. This is where THCv comes in handy. Smoking a strain high in THCV may help mitigate some of the short-term memory and speech impairment that goes hand-in-hand with being a little too high.

Promotes Weight Loss

There have been several studies that highlight the appetite suppressant effects of CBD, but more and more research is coming out linking THCV and weight loss. A paper published last year by C4 Laboratories in Arizona cited evidence that THCV decreased body fat and boosted energy metabolism in mice.

7. CBDv

CBDv is short for cannabidivarin. So far, not a whole lot of research has been done on CBDV. But, what little is out there looks extremely promising. CBDv is very similar to CBD, but it is a slightly degraded version of the cannabinoid. This changes the shape of the molecule in small but significant ways. These are a couple of the benefits CBDv can provide:

Anti-Epileptic

UK’s GW Pharmaceuticals announced a patent for CBDv last year. The patent will allow GW Pharma to create a CBDv-based anti-epileptic drug. They’re currently undergoing phase 2 trials for the drug.

This patent comes after a wave of research published back in 2012 and 2013. Two separate studies isolated CBDv as a strong anticonvulsant. The first study published in 2012 found that the cannabinoid stopped seizures in mice and rats. The second study also looked at rats and confirmed the first study’s findings. Studies from 2014 and on continue to corroborate this information.

Anti-Nausea

CBDv may also prove useful for patients with stomach or gastrointestinal issues. 2013 research out of the University of Ontario found that the compound is one hell of a nausea-fighter. Scientists found that nauseated behavior was significantly reduced in rats treated with both CBDv and THCv.

8. Delta(8)-THC

The THC that many of us have come to know and love is known as Delta(9)-THC. This version is slightly different. Delta(8) is less psychoactive than “regular” THC in adults. Some resources claim that Delta(8) may have neuroprotective and anti-anxiety properties, making it an interesting companion to the more notorious psychoactive. However, more research is needed to confirm just how this particular compound acts inside the body. Here are a couple of additional benefits you can expect from delta(8)-THC:

Appetite Stimulator

You might have thought that the familiar delta-9 THC gave you the munchies, but apparently it doesn’t compare to delta(8). An experiment on mice found that delta(8) increased the rodents’ appetite significantly more than delta(9).

Anti-Nausea

Back in 1995, 8 children with cancer were treated with delta(8)-THC during the course of chemotherapy. The results of the study were actually a little odd. While nausea and vomiting were reduced in all cases, delta(8)-THC also did not produce any psychoactive response in the children. Their ages were between 2 and 13-years-old.

9 & 10 Nutritional Cannabinoids THCa and CBDa

THCa and CBDa are the compounds found it marijuana before it is decarboxylated, or “decarbed”. These cannabinoids are found in raw cannabis, and can be eaten as a nutritional supplement or applied topically. You cannot smoke or inhale THCa or CBDa. Once you take heat to these two acids, you convert them from an acid to forms that are slightly more broken down.

In the case of THCa, you decarb down to psychoactive THC. THCa on is not psychoactive until you apply heat.

Dr. William Courtney has spearheaded the raw cannabis movement. In his opinion, cannabis is a dietary necessity. The superfoods of all superfoods, if you will.

As per his medical expertise, raw marijuana has several properties as a nutritional supplement, just to name a few:

• Anti-inflammatory
• Antioxidant
• Improved intestinal function
• Improved neural function
• Cancer and pre-cancerous detection

In case you haven’t noticed, this plant is a medicinal gold mine. The 10 cannabinoids outlined here are only the tip of the iceberg when it comes to marijuana research. In all, there are over 400 unique chemical compounds in the marijuana plant. The individual compounds studied so far have not only wowed researchers with their medical potential, but the scientific community is further amazed by how these chemicals work together in harmony.

Terpenes- Essential Oils and Cannabis

We are reposting this article, originally written by Drake Dorm for MedicalJane, because we think you might want to know how terpenes can affect your cannabis experience.

Terpenes Influence the Synergy Effect of Cannabis

As we know, science has identified and characterized the molecular structure of around 20,000 terpenes, which makes it the largest category of plant chemicals. These aromatic compounds are found in the essential oils of plants and flowers, and plenty of studies have been done on their effects.

Of the 20,000 identified terpenes, there have been more than 120 found in cannabis. Only a few of them appear in high concentrations, but they have been found to have a number of benefits. A few of these effects are covered in our terpenoid article, but recent research has suggested an “entourage effect” as well. In his 2011 study “Taming THC,”Ethan Russo, from GW Pharmaceuticals, discussed the interaction between terpenes and cannabinoids.

Terpenes May Reduce THC-Induced Anxiety

For years, tetrahydrocannabinol (THC) was the only cannabinoid investigated for its medicinal value, and we know it has the potential to cause anxiety in some patients. However, certain terpenes in cannabis, like Linalool, have been found to counter the anxiety.

In fact, Russo points out that terpenes likely played a role in a number of ancient antidotes for the less desirable effects of THC. For instance, citrus fruits (high in limonene) were used as a “cannabis antidote” in 10th century Persia. Other ancient antidotes include calamus plant roots and pine nuts (high in pinene), as well as black pepper (high in caryophyllene and myrcene).

Terpenes and Cannabinoids Work Better Together

Terpenoids can be used for more than countering THC-induced anxiety. Russo discussed interactions to treat a number of issues including: pain, inflammation, depression, addiction, epilepsy, cancer, and infections.

 Russo believes pinene would be useful in the treatment of MRSA. Cannabigerol (CBG) is a potent MRSA inhibitor, and can be found with small amounts of THC. Because of this Russo suggests a whole-plant extract, high in CBG and pinene, which was found to have its own anti-MRSA qualities in 2010.

Terpenes could also aid inAlzheimer’streatment with cannabidiol (CBD). Linalool, which is prominent in lavender, helps counter stress and anxiety. Limonene is commonly used in aromatherapy to improve mood, and pinene is known to promote alertness and memory retention. Combining these terpenoids with a CBD-rich extract may help treat the wide-ranging effects of Alzheimer’s disease.

Another interaction that Russo highlighted could have benefits for addiction treatment. An essential oil made from black pepper reduced nicotine cravings in cigarette smokers. Interestingly enough, black pepper essential oils are high in myrcene, pinene, and caryophyllene, all of which can be found in cannabis.

Caryophyllene is interesting because it directly stimulates the CB2 receptors throughout the body. As we know, CB2 agonists prevent the release of dopamine, which is related to addiction. This, in combination with the use of CBD for opiate withdrawal, suggests that cannabis with caryophyllene could have a variety of rehabilitative benefits.

Russo, Trichome Technologies Suggest A Focus On Terpenes

In “Taming THC,” Russo focused on the interaction between terpenes and cannabinoids. With that being said, the knowledge is useless without some way to apply it. His solution: selective breeding designed around terpenes. Citing the 2002 study, “The Inheritance of Chemical Phenotype in Cannabis Sativa,” Russo suggested that growers focus on their desired terpenes when breeding.

In fact, Kenneth “K” Morrow, founder of Trichome Technologies, a leading international cannabis consulting company, recently endorsed a similar sentiment during Danny Danko’s cultivation panel at the recent High Times Cannabis Cup. In discussing the topic of terpenes, “K” urged people to tailor their grows towards the production of individual terpenes.

“K”, like multiple growers on online forums, believes that a number of variables (lighting, soil composition, nutrients, etc.) can influence terpene production. If growers are able to influence the production of specific terpenes, they could improve their product’s effectiveness.

Terpenes Can Improve Medical Marijuana, Infused Products

It’s been reported that certain terpenes dilate capillaries in the lungs. Logic tells us that this would be useful in the case of smoked or vaporized cannabis. Dilated capillaries would enable beneficial cannabinoids to enter the bloodstream easier. This certainly could be useful for growers who know how their crops will be ingested, and in the production of cannabis concentrates.

In fact, a number of concentrate makers enhance their finished product with pure terpenes. This is typically done for added flavor, as the more volatile terpenes can be lost during the extraction process. However, infusing concentrates with a specific terpene for added effect would be equally beneficial. For instance, pinene is a bronchodilator, which could benefit asthma patients.

In fact, similar processes already exist. According to Jeff Raber, founder of The Werc Shop, a lab-testing facility in Los Angeles, they are able to infuse concentrates with the terpenes lost. “Based on the terpene-profile of each strain,” he added, “we can recreate as much of the whole plant component as possible.”

One step further, K believes terpene-rich extracts could play a major role in the future of medical marijuana. He points out that some patients might want the terpene-related flavor and relief, without the high from THC.

Another potential application of terpenes could benefit users of medicated topicals. Nerolidol, a sedative terpene, is a known skin penetrant. Therefore, it could aid in cannabinoid absorption if infused in topicals.

The benefits of terpenes are widely recognized, but they just now are being explored by experts in the cannabis industry. As Ethan Russo pointed out, terpenes may influence a number of cannabis’ benefits. Their interaction with cannabinoids often impacts the effectiveness of medical marijuana strains and products, and could be used to facilitate a better overall experience.

Clean Green Certified!

We are now Clean Green Certified!!

Here at Gorge Greenery we never stop striving for the best, and are one of the few Clean Green Certified Dispensaries. From sustainable labels and packaging, reclaimed wood and recycled furnishing, to Clean Green Certified cannabis and gardens with extended pesticide screening, we are always striving to protect consumers as well as our environment.

Clean Green Certified is the number one certifier nation-wide for cannabis cultivated using sustainable, natural organically-based and biodynamic practices. Legally, marijuana cannot be called organic — no matter how environmentally friendly the cultivation practices used to grow it — because the term is federally regulated and the USDA does not recognize cannabis as a legitimate agricultural crop. The Clean Green Certified program was created in 2004 as a way to regulate legal cannabis-products that called themselves "organic." Consumers can rest assured when they buy a Clean Green Certified cannabis product that it has met all of the requirements of the rigorous program.

Modeled on national and international sustainability,  organic and biodynamic program standards, the Clean Green program requires on-site inspections. Clean Green Certified goes further that the USDA organic in some areas, requiring more strict regulations on pesticide testing for all operators and each cannabis operation must put into place a carbon footprint reduction plan, water conservation measures and fair labor practices.

Clean Green Certified has a certification specifically for cannabis processors and handlers. Whether it be a store-front or a cannabis concentrate company, certification audits the processor/handler's ability to keep Clean Green cannabis separate from cannabis grown conventionally. A consumer can have greater confidence when buying cannabis or a cannabis product from a Clean Green Certified outlet that it was grown fair-trade and sustainably, without the use of synthetic pesticides. 

Check out the Clean Green website here: www.cleangreencert.org