Question

mention two types of changes that take place when milk is converted to curd ​

Answer 1

Physical change and chemical change

Explanation:

Milk is converted into curd or yogurt by the process of fermentation. Milk consists of globular proteins called casein. The curd forms because of the chemical reaction between the lactic acid bacteria and casein. During fermentation, the bacteria use enzymes to produce energy (ATP) from lactose.

The change of milk into curd is both a physical and chemical change.

Physical change; as the milk turns into curd and forms a mass as the milk solid make a cluster.

Chemical change; as the lactose in the milk turns into lactic acid, and as acid increases the coagulation takes place

#Learn more:

Is nutritional value changes when milk convert to curd?

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