butyric acid

Pronunciation: [byoo-TIHR-ihk]

Found chiefly in butter, this natural acid not only produces butter's distinctive flavor but also causes the rancid smell in spoiled butter. Butyric acid, also called butanoic acid, is also found in some fruits and is produced synthetically to be used as a flavoring agent in various food products.

From The Food Lover's Companion, Fourth edition by Sharon Tyler Herbst and Ron Herbst. Copyright © 2007, 2001, 1995, 1990 by Barron's Educational Series, Inc.

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