Can you describe what happens when milk is converted to curd or yoghurt from your understanding of proteins ?

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Solution

Milk is inoculated with lactic acid bacteria. They convert milk sugar lactose into lactic acid. Lactic acid acts on globular milk protein casein, causes its denaturation and conversion to fibrous state. The protein fibres form a reticulum which holds milk fat: This changes milk into curd or yoghurt.

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