Which enzyme is present in onions? Understanding the Tear-Inducing Science
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4 min read
In 2002, Japanese scientists identified a previously unknown enzyme, lachrymatory-factor synthase (LFS), as the true culprit behind the tear-jerking effect of onions, correcting the long-held belief that another enzyme, alliinase, was solely responsible. This discovery revealed a two-step enzymatic reaction that creates the volatile chemical responsible for eye irritation.
