Explain the changes that milk undergoes when suitable starter/inoculum is added to it. How does the end product formed prove to be beneficial for human health ?
When a small amount of curd is added to the fresh milk then the curd has millions and billions of lactobacillus and lactic aid bacteria in it and this process is known as curdling of milk. These microbes also increase the nutrient quality of milk as it is a great source of vitamin B12.
Lactobacillus or lactic acid bacteria (LAB) present in inoculum or starter. LAB grows in milk at a suitable or optimum temperature. It multiplies and converts milk into curd. It produces lactic acid that coagulate and partially digest the milk proteins