Question

Which of the following is a natural source of lactic acid?
1) tomato
2) curd
3) vinegar
4) tamarind

Answer 1

Which of the following is a natural source of lactic acid

Curd

Answer 2

Curd is a natural source of lactic acid.

Answer - Curd (Option B)

Explanation:

• Tomato is a natural source of citric acid, vinegar is a source of acetic acid, and tamarind is a source of tartaric acid.
• Curd formed by the fermentation of the milk, where lactose is converted to lactic acid by the action of natural bacteria.
• With the formation of lactic acid, the pH lowers and denatures the milk protein leading to the basic structure or texture of the curd.
• The sour taste of the curd is due to the presence of lactic acid.