fermentation
A process by which a food goes through a chemical change caused by enzymes produced from bacteria, microorganisms or yeasts. Fermentation alters the appearance and/or flavor of foods and beverages such as beer, buttermilk, cheese, wine, vinegar and yogurt.
© Copyright Barron's Educational Services, Inc. 1995 based on THE FOOD LOVER'S
COMPANION, 2nd edition, by Sharon Tyler Herbst.