probiotic: is a greek word mean "for life"probiotic bacteria are commonly living beneficial micro organisms in foodstuff when taken at certain level in nutrition ,provide equlibrium of intestinal flora.so provide positive effect on health of consumer.
common discriptive probiotics include:
friendly,beneficial ,healthy bacteria.
lactobacilli are gram positive rod or cocobacilli bacteria found in rich carbohydrate habitet such as human and mucosal membrane.
bifidobacteriaconstituate a major part ofnormal intestinal microflora of human.