The dietary fiber, the manufacturing method and the physiological activator null which contains its dietary fiber

摘要

A dietary fiber is disclosed which may be extracted from bran using an aqueous solvent at a temperature of 170 to 220 DEG C. The fiber comprises, as its principal ingredient, water soluble and hard to digest polysaccharides rich in beta -glucose. The fiber is useful in both dietary and pharmaceutical compositions, since it has tumour growth inhibiting activity, Lactobacillus bifidus proliferating activity, cholesterol metabolism improving activity and immunologic response enhancing activity. It is also quite safe to animals and humans.