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Here’s the chemistry behind marijuana’s skunky scent
07 April 2022 IST
Here’s the chemistry behind marijuana’s skunky scent

Recently recognized sulfur compounds in pot blossoms give the plant its obvious out of control scent

 
 

Researchers have at last tracked down the atoms behind cannabis' skunky smell.
 
The exciting bouquet that floats off of new weed is really a mixed drink of many fragrant mixtures. The most conspicuous botanical, citrusy and piney hints come from a typical class of particles called terpenes, says insightful scientist Iain Oswald of Abstrax Tech, a privately owned business in Tustin, Calif., that creates terpenes for marijuana items (SN: 4/30/18). Yet, the wellspring of that astounding marijuana note has been difficult to nail down.
 
Presently, an examination is quick to distinguish a gathering of sulfur compounds in weed that record for the skunklike aroma, scientists report November 12 in ACS Omega.
 
Oswald and partners suspected that the offender might contain sulfur, a stinky component found in jumps and skunk splash. So the group began by rating the skunk element of blossoms reaped from in excess of twelve assortments of Cannabis sativa on a scale from zero to 10, with 10 being the most impactful. Then, the group made a "substance finger impression" of the airborne parts that added to every cultivar's extraordinary aroma utilizing gas chromatography, mass spectroscopy and a sulfur chemiluminescence indicator.
 
As thought, the analysts observed modest quantities of a few fragrant sulfur compounds prowling in the olfactory profiles of the smelliest cultivars. The most predominant was an atom called prenylthiol, or 3-methyl-2-butene-1-thiol, that gives "skunked brew" its famous flavor (SN: 11/27/05).
 
The sulfur compounds have been found in nature, yet never before in marijuana, says Amber Wise, an insightful physicist with Medicine Creek Analytics in Fife, Wash., who was not associated with the review.
 
Oswald was astonished to find that prenylthiol and a significant number of the other sulfurous suspects in marijuana share primary similitudes with particles found in garlic. What's more, similar to these alliaceous analogs, a tiny amount makes a remarkable difference.
 
These mixtures "can be in exceptionally low fixations on the bloom, yet at the same time have a gigantic effect on the smell," Oswald says. The sulfur particles are most bountiful in weed blossoms when they arrive at development and during the relieving system.
 
 

 
 

Smell clinician Avery Gilbert of Headspace Sensory, a new business in Fort Collins, Colo., that works in evaluating the many aromas of weed, is eager to see the atoms added to pot's synthetic collection. "The range of weed scent is simply astounding," he says. "I think it beats the heck out of wine."
 
The revelation of prenylthiol in pot, Gilbert says, is the initial step to covering its disturbance scent - or boosting its unreasonably charming smell.
 
Prenylthiol has a "polarizing aroma," Oswald says. While many individuals think it stinks, some marijuana clients will pay as much as possible for skunky grass, which some think about a mark of value.

 
 
 
 
 

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Shibu Chandran
2 hours ago

Serving political interests in another person's illness is the lowest form of human value. A 70+ y old lady has cancer.

November 28, 2016 05:00 IST
Shibu Chandran
2 hours ago

Serving political interests in another person's illness is the lowest form of human value. A 70+ y old lady has cancer.

November 28, 2016 05:00 IST
Shibu Chandran
2 hours ago

Serving political interests in another person's illness is the lowest form of human value. A 70+ y old lady has cancer.

November 28, 2016 05:00 IST
Shibu Chandran
2 hours ago

Serving political interests in another person's illness is the lowest form of human value. A 70+ y old lady has cancer.

November 28, 2016 05:00 IST


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