Question

explain the formation of curd

Answer 1

Curds are a dairy product obtained by coagulating milk in a process called curdling. The coagulation can be caused by adding rennet or any edible acidic substance such as lemon juice or vinegar, and then allowing it to sit. The increased acidity causes the milk proteins (casein) to tangle into solid masses, or curds.

Answer 2

Curd is formed by fermentation of milk by bacteria (i dont know the name if bacteria) it actually convert the sugar into lactic acid