Lembaga Penelitian dan Pengabdian Kepada Masyarakat, Universitas Surabaya
Abstract
Yoghurt is a fermented food which posses numerous benefit for human health because of its probiotic bacteria. Probiotic bacteria in yoghurt usually have a low survivability in human gastroingestinal tract due to the low Ph in stomach and the presence of bile of bile salt in small intestine. The aims of this study were to know the effect of culture cells immobilization toward its survivability against low Ph and bil salt as well as to yoghurt nutritional composition. The result showed that immobilization could improve cell survivability against both low Ph and bile salt compared to the free cells. Nutritional composition of yoghurt containing immobilized cells has higher reduction sugar,lower lactic acid, and lower total titrated aci compared to the free cell
