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Home / 2018 / May / 17 / UBC Okanagan researchers develop faster test for cannabis quality
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UBC Okanagan researchers develop faster test for cannabis quality

May 17, 2018

UBC Okanagan researchers develop faster test for cannabis quality

New method to help meet increasing demand for cannabis potency testing

With the coming legalization of cannabis in Canada, producers are increasingly looking for quick and accurate means of determining the potency and quality of their products.

Researchers at UBC’s Okanagan campus have developed a new method of measuring phytocannabinoids—the primary bioactive molecules in cannabis—that will lead to faster, safer and more accurate information for producers, regulators and consumers alike.

“There is growing demand on testing labs from licensed cannabis growers across the US and Canada who are under pressure to perform potency testing on ever-increasing quantities of product,” says Matthew Noestheden, PhD chemistry student under Prof. Wesley Zandberg at UBC’s Okanagan campus. “Traditional tests can take upwards of 20 minutes to perform, where we can do it in under seven. It will save a great deal of time and money for producers with enormous greenhouses full of thousands of samples requiring testing.”

Noestheden says that not only can he test the substance in record time, but he can also test for a virtually limitless number of phytocannabinoid variants.

“Most people are familiar with THC as the primary bioactive compound in cannabis. But in reality, there are more than 100 different phytocannabinoid variants, many with their own unique biological effects,” says Noestheden. “The problem is that it’s very difficult to differentiate between them when testing cannabis potency.”

The research team overcame the problem by using high-pressure liquid chromatography—an instrument that isolates each phytocannabinoid to measure them independently. They were able to discern the potency of 11 unique phytocannabinoids in cannabis extracts, which is important for determining the safety and authenticity of cannabis products.

“We tested twice as many phytocannabinoids compared to what most labs are testing for now, and more than twice as fast,” says Noestheden. “We limited our tests to 11 variants because these were the only ones commercially available at the time. We could just as easily test for 50 or even all 100 variants, including some synthetic cannabinoids that can be added to products to increase potency.”

Noestheden says his method was designed to be rolled out in labs around the world. Having worked with Rob O’Brien, president of Supra Research and Development, a cannabis testing lab and industry partner of this study, Noestheden now hopes his new method can be put straight to good use by helping researchers connect variation in phytocannabinoids with the pharmacological effects of various cannabis products.

“It’s an elegant solution because any cannabis testing lab with the appropriate instrumentation should be able to adopt the new method with minimal additional investment, making the whole process cheaper and faster.”

Media Contact

Nathan Skolski
Associate Director, Public Affairs
University Relations

The University of British Columbia
Okanagan campus
Tel: 250 807 9926
E-mail: nathan.skolski@ubc.ca

Content type: Media Release
More content from: Chemistry, Irving K Barber School of Arts and Sciences (prior July 2020)

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About UBC Okanagan

UBC’s Okanagan campus is an innovative hub for research and learning founded in partnership with local Indigenous peoples, the Syilx Okanagan Nation, in whose traditional, ancestral and unceded territory the campus resides. The most established and influential global rankings all consistently place UBC in the top five per cent of universities in the world, and among the top three Canadian universities.

The Okanagan campus combines a globally recognized UBC education with a tight-knit and entrepreneurial community that welcomes students and faculty from around the world in British Columbia’s stunning Okanagan Valley. For more visit ok.ubc.ca.

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