MICROBIOLOGY OF Yogurt FERMENTATION
Characteristics
Plain yogurt has a semisolid mass due to coagulation of milk(skim, low, or full fat by starter-culture bacteria. it has a sharp acid taste with a flavor similar to walnuts and a smooth mouth feel. The flavor is due to the combined effects of acetaldehyde, lactate, diacetyl, and acetate, but 90 of the flavor is due to acetaldehyde .