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Name the Group of Bacteria Involved in Setting Milk into Curd. Explain the Process They Carry in Doing So. Write Another Beneficial Role of Such Bacteria. - Biology

Question

Answer in Brief

Answer the following question:
Name the group of bacteria involved in setting milk into curd. Explain the process they carry in doing so. Write another beneficial role of such bacteria.

Solution

Lactobacillus and other Lactic Acid Bacteria (LAB) are responsible for the curdling of milk. These bacteria utilize and act upon the milk sugar lactose leading to its oxidation to lactic acid. This lactic acid produced in turn leads to partial digestion and coagulation of milk proteins to form the curd. Action by LAB also leads to an increase in vitamin B12 content of the curd.

On consumption of curd, these bacteria add to the healthy and beneficial gut flora outcompeting the growth of harmful gut flora.

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