Enhanced immune activity of the persimmon leaf-derived polysaccharide fraction and production method thereof

The present invention relates to a method for preparing the polysaccharide fraction and persimmon leaf-derived, and more particularly relates to a polysaccharide-based fraction 70 wt% of the total weight to 90% by weight of neutral sugar and 10 wt% to 30 wt% of sugar glucuronic acid persimmon leaf-derived polysaccharide fraction, as well as their preparation and use. Polysaccharide fraction in the present invention enhance the activity of sub complement system and enhance the immune function in mice immunosuppressed and normal mice are excellent, and thus may be useful in the preparation of a food composition for enhancing immune competitive Drug and competitive.