Fermentation is one of the oldest forms of food preservation techniques in the world.Fermented foods such as bread,cheese has been consumed for thousands of years and strongly linked to cultural tradition in rural house holds and tribes. In Asia particularly in India many more cuisines and preparations involving food fermentations are practiced traditionally. Some preparations are well controlled and have good nutritional and hygienically.Tribal food preparations are crude and uncontrolled. Nutritionally they are deficient and are vehicles for intestinal pathogens.This results in severe micro...