FOOD TECHNOLOGY

Detailed explanation-1: -Cultured sour cream is made by adding a culture of Streptococcus lactis to pasteurized light cream and incubating at 72˚F until the desired flavor and thickness is reached. The lactic acid produced by the culture coagulates the protein, thickening the cream and adding the characteristically sour flavor.

Detailed explanation-2: -Commercial sour cream is made from light cream of from 18 to 20 percent butterfat which, after pasteurization, is inoculated with lactic-acid-producing bacteria. The cream is ripened 14–16 hours at 72 °F (22 °C), then chilled and aged 12–48 hours. The bacterial action thickens the cream…