The compounds that give flavor to come out. Lactic acid is formed to make casein (casein), which is the main protein in milk. Denaturation (protein denaturation) cause agglomeration. And settling down some
Substances including taste and smell. Lactic acid, this incident will make casein (casein) which is the main protein in milk, loss of natural environment(protein denaturation) caused the gathering and settling down some.