Question

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

Answer 1

Answer:

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Milk is converted into curd or yogurt by the process of fermentation. Milk consists of globular proteins. During fermentation, the milk sugar (lactose) produs lactic acid. Lactic acid acts on the globular proteins present in the milk and denatures them. This denaturation destroys the tertiary and quaternary structures of proteins and the globular proteins are converted into fibrous proteins thus giving a thick texture to the milk due to coagulation of the proteins......

Answer 2

Answer:

Milk contains a protein called casein. This protein gives milk its characteristic white colour. ... The curd forms because of the chemical reaction between lactic acid bacteria and casein. When curd is added to milk, the lactic acid bacteria present in it cause coagulation of casein and thus, convert it into curd.

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