Question

take one cup milk and one spoon of curd with the help of your parents warm the milk slightly note your observation about the appearance of milk at one spoon of curd to warm milk keep it aside undis turbed for three to fourth hours in our kitchen note the observation about the appearance of milk again write the reason for the change in your words why does it happen?​

Answer 1

Answer:

After the milk is inoculated with small amount of curd that contains a number of lactic acid bacteria (LAB), Lactobacillus acidophilus. The bacteria multiply rapidly through binary fission. It secretes chemicals that convert lactose sugar into lactic acid. Lactic acid causes partial digestion of milk protein casein and its coagulation. This changes milk into curd.

Curd is more nutritious than milk. Besides having all the ingredients of milk it contains a number of orgainc acids and vitamins including B12

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. LAB present in curd also checks the growth of disease causing microbes in the digestive tract.

Explanation: