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February 26, 2022 05:34 pm
Original Link: https://science.slashdot.org/story/22/02/26/0555200/this-e-nose-sniffs-out-the-good-whiskey?utm_source=rss1.0mainlinkanon&utm_medium=feed
This E-Nose Sniffs Out the Good Whiskey
Slashdot reader Hmmmmmm quotes IEEE Spectrum:A whiskey connoisseur can take a whiff of a dram and know exactly the brand, region, and style of whiskey in hand. But how do our human noses compare to electronic noses in distinguishing the qualities of a whiskey? A study published 1 February in IEEE Sensors Journal describes a new e-nose that is surprisingly accurate at analyzing whiskies — and can identify the brand of whiskey with more than 95 percent accuracy after just one "whiff." E-noses have been gaining in popularity over recent years thanks to their range of valuable applications, from sensing when crops are ready for harvest to identifying food products on the cusp of expiring. It is perhaps unsurprising that many e-noses have also been developed to analyze alcoholic beverages, including whiskey, which had an estimated international market worth US $58 billion in 2018 alone. "This lucrative industry has the potential to be a target of fraudulent activities such as mislabeling and adulteration," explains Steven Su, an associate professor at the Faculty of Engineering and IT, University of Technology Sydney.... Su and his colleagues sought to adapt one of their e-noses so that it could analyze some key qualities of whiskey. Their original e-nose was designed to detect illegal animal parts sold on the black market, such as rhino horns, and they have since also adapted their e-nose for breath analysis and assessing food quality. Their newest, whiskey-sniffing e-nose, called Nos.e, contains a little vial where the whiskey sample is added. The scent of the whiskey is injected into a gas sensor chamber, which detects the various odors and sends the data to a computer for analysis. The most important scent features are then extracted and analyzed by machine learning algorithms designed to recognize the brand, region, and style of whiskey.Read more of this story at Slashdot.
Original Link: https://science.slashdot.org/story/22/02/26/0555200/this-e-nose-sniffs-out-the-good-whiskey?utm_source=rss1.0mainlinkanon&utm_medium=feed
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