Which of the following acids is present in sour milk?
A
Glycolic acid
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B
Lactic acid
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C
Citrus acid
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D
Tartaric acid
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Solution
The correct option is B Lactic acid Soured milk is a food product produced from acidification of milk. Sour milk is curdled or coagulated by natural souring or by the addition of lactic acid bacteria such as traditional curd cheese or cottage cheese. The milk proteins of sour milk are partially curdled due to acidic environment so they are readily digestable.