50.Due to which of the following acids, Milk tastes sour when kept in the open for sometime? [A] Lactic Acid [B] Citric Acid [C] Acetic Acid [D] Carbonic Acid
When the milk is left open at room temperature, its taste changes and becomes sour due to the breakdown of lactose into lactic acid because of the lactic acid bacteria which also lower the PH of the milk due to the formation of lactic acid.
