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Cannabis Concentrates: Medical Significance and Extraction Methods

[fa icon="calendar'] Oct 22, 2016 8:00:00 AM / by Alexey Peshkovsky, Ph.D. posted in Medical Cannabis, Extraction

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The cannabis (marijuana, hemp) plant has been used for medicinal purposes for millennia.  In addition to terpenes and flavonoids, over 100 types of therapeutically active compounds known as cannabinoids have been identified in these plants [1]. The two most important and well-known cannabinoids are tetrahydrocannabinol (THC) and cannabidiol (CBD) [2]. Cannabinoids have the ability to directly and/or indirectly affect receptors in our cells because they mimic endocannabinoids produced by our own bodies endogenously, for example, in response to injury [3].

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Acoustic Cavitation: The Driving Force Behind Ultrasonic Processing

[fa icon="calendar'] Jan 2, 2016 5:01:34 PM / by Alexey Peshkovsky, Ph.D. posted in Ultrasonic Degassing, Theory of Ultrasonic Processing, Extraction, Food & Beverage, Wet Milling and Dispersing

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Liquids exposed to high-intensity ultrasound can undergo acoustic cavitation. This phenomenon can typically be seen as a cloud of bubbles forming in the vicinity of the ultrasonic source (e.g., ultrasonic horn) and heard as an intense hissing noise. Cavitation is the formation of low-pressure voids (a.k.a., vacuum bubbles or cavities) in the liquid, which grow, briefly oscillate and then asymmetrically implode with great intensity.

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6 Frequently Used Terms in Ultrasonic Processing of Liquids

[fa icon="calendar'] Dec 1, 2015 4:39:00 PM / by Alexey Peshkovsky, Ph.D. posted in Ultrasonic Processing Systems, Theory of Ultrasonic Processing, Extraction

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This blog post focuses on six common terms used in conjunction with ultrasonic processing: ultrasonic amplitude, power, frequency, power intensity, power density and processing rate.

Whether you use ultrasonic processing for making nanoemulsions, milling pharmaceutical crystals, degassing, extracting botanical oils, manufacturing bio-fuels, dispersing pigments, disrupting cells or enhancing a chemical process, there are several general terms you need to be familiar with. Knowing these terms and keeping track of the corresponding parameters will insure reproducibility of results and simplify process-related discussions with your peers. 

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