Analysis of cannabinoids in commercial hemp seed oil and decarboxylation kinetics studies of cannabidiolic acid (CBDA).

Journal of Pharmaceutical and Biomedical Analysis

“Hemp seed oil from Cannabis sativa L. is a very rich natural source of important nutrients, not only polyunsaturated fatty acids and proteins, but also terpenes and cannabinoids, which contribute to the overall beneficial effects of the oil.

Hence, it is important to have an analytical method for the determination of these components in commercial samples. At the same time, it is also important to assess the safety of the product in terms of amount of any psychoactive cannabinoid present therein.

This work presents the development and validation of a highly sensitive, selective and rapid HPLC-UV method for the qualitative and quantitative determination of the main cannabinoids, namely cannabidiolic acid (CBDA), tetrahydrocannabinolic acid (THCA), cannabidiol (CBD), tetrahydrocannabinol (THC), cannabinol (CBN), cannabigerol (CBG) and cannabidivarin (CBDV), present in 13 commercial hemp seed oils.

Moreover, since decomposition of cannabinoid acids generally occurs with light, air and heat, decarboxylation studies of the most abundant acid (CBDA) were carried out in both open and closed reactor and the kinetics parameters were evaluated at different temperatures in order to evaluate the stability of hemp seed oil in different storage conditions.”

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Variability in Seed Traits in a Collection of Cannabis sativa L. Genotypes.

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“Cannabis sativa L. (hemp) is a wind-pollinated annual plant that originated in central Asia. Hemp, naturally, is a dioecious crop, but some monoecious cultivars have been obtained as a result of earlier breeding efforts.

Hemp is an ancient crop that has been cultivated worldwide until the early twentieth century, after which its cultivation declined.

Recently, interest in this multipurpose crop delivering fibers, shives, and seeds, has been renewed by an increasing demand not only for natural fibers but also for the high content and quality of seed protein and oil. Hemp seed contains 25–35% oil, 20–25% protein, 20–30% carbohydrates, 10–15% insoluble fiber, vitamins, and minerals such as phosphorus, potassium, magnesium, sulfur, and calcium.

The increasing demand for vegetable oils and proteins, along with current awareness about their nutritional and functional role in human diet, has made indispensable to characterize new plant sources. In this regard, hemp seed contains all the essential amino acids and fatty acids necessary to maintain healthy human life, and it might be a new good source of nutrients for both humans and livestock.

The principal value of hemp seed oil resides in its fatty acid composition. It contains the two dietary essential fatty acids: linoleic acid (LA; 18:2ω6) and the α-linolenic acid (ALA; 18:3ω3) in the ratio of 2.5–3:1, which has been claimed as ideal for human nutrition.

The seed of Cannabis sativa L. is an expanding source of proteins and oil for both humans and animals.”

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4873519/

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Characterization of Lignanamides from Hemp (Cannabis sativa L. ) Seed and their Antioxidant and Acetylcholinesterase Inhibitory Activities.

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“Hempseed is known for its content in fatty acids, proteins and fiber, which contribute to its nutritional value.

Here we studied the secondary metabolites of hempseed aiming at identifying bioactive compounds that could contribute to its health benefits.

This investigation led to the isolation of four new lignanamides cannabisin M, 2, cannabisin N, 5, cannabisin O, 8 and 3,3′-demethyl-heliotropamide, 10, together with ten known lignanamides, among which 4 was identified for the first time from hempseed.

Structures were established on the basis of NMR, HR-MS, UV, IR as well as by comparison with the literature data.

Lignanamides 2, 7, 9-14 showed good antioxidant activity among which 7, 10 and 13 also inhibited acetylcholinesterase in vitro.

The new identified compounds in this study added to the diversity of hempseed composition and the bioassays implied that hempseed, with lignanamides as nutrients, may be a good source of bioactive and protective compounds.”  http://www.ncbi.nlm.nih.gov/pubmed/26585089

“Alzheimer’s Disease (AD) is the most common single cause of dementia in our ageing society. On full assessment and diagnosis of AD, initiation of an AChe inhibitor is recommended as early as possible, it is important that AChe inhibitor therapy is considered for patients with mild to moderate AD.” https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2014378/

 “The Effects of Hempseed Meal Intake and Linoleic Acid on Drosophila Models of Neurodegenerative Diseases and Hypercholesterolemia. Our results indicate that hempseed meal (HSM) and linoleic acid are potential candidates for the treatment of Alzheimer’s disease (AD) and cardiovascular disease. These results show that HSM may prove of great utility as a health food, with potential for the prevention of AD and cardiovascular disease.” https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3933972/
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What’s So Healing About Hemp Seeds and Flax Seeds?

“Hemp seeds have a plethora of nutrients necessary to the healing process which makes them one of the most nutritious foods on our planet. When we talk about hemp seeds we mean hulled seeds from the hemp plant. Although in the same genus of plants as Marijuana, Hemp does not possess high enough levels of the medicinal and analgesic (pain relieving) compound Tetrahydrocannabinol, also commonly known by its acronym THC, to be considered the same plant. This article is about the healing medicinal value of hulled hemp seeds with respect to their content of essential amino acids (raw protein) and highly unsaturated essential fatty acids…

The fat content and balance of essential fats in hemp seeds is superior to almost every other seed and nut. Hemp has a ratio of Omega-6 to Omega-3 of 3.75 to 1, which according to the World Health Organization is close to perfect for effective metabolism. Hemp also contains other very important co-factor nutrients including chlorophyll, Vitamin E, a complex of B Vitamins including Folic Acid, as well as Phosphorous, Calcium, Magnesium and Potassium…”

More: http://thegoodwitch.ca/whats-so-healing-about-hemp-seeds-and-flax-seeds/

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