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The Terroir of Cannabis: Terpene Metabolomics as a Tool to Understand Cannabis Sativa Selections

The Terroir of Cannabis: Terpene Metabolomics as a Tool to Understand Cannabis Sativa Selections

Elizabeth M Mudge, Paula N Brown, Susan J Murch

Planta Med. 2019 Jul;85(9-10):781-796.

PMID: 31096276

Abstract:

The phytochemical diversity of Cannabis chemovars is not well understood, and many chemovars were created in informal breeding programs without records of parentage or the criteria for selection. Key criteria for selection sometimes included aroma notes and visual cues, which some breeders associated with pharmacological activity. We hypothesized that the process of selection for scents believed to be related to specific tetrahydrocannabinol levels has resulted in modified terpene biosynthesis in these chemovars. Thirty-two cannabinoids, 29 monoterpenes and 38 sesquiterpenes were measured in 33 chemovars from 5 licensed producers. A classification system based on cannabinoid content was used with targeted metabolomic tools to determine relationships in the phytochemistry. Three monoterpenes, limonene, β-myrcene, and α-pinene, and two sesquiterpenes, caryophyllene and humulene, were abundant in the majority of chemovars. Nine terpenes were present in tetrahydrocannabinol-dominant chemovars. Three monoterpenes and four sesquiterpenes were predominantly found in cannabidiol-containing chemovars. Low abundance terpenes may have been the aromatic cues identified by breeders. The medicinal activity of some of the terpenes is likely to contribute to the pharmacological effect of specific chemovars. Together, these data demonstrate the synergy of compounds in Cannabis chemovars and point to the need for additional research to understand the phytochemical complexity.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP123353	Myrcene		123-35-3	Price

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