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To elucidate the novel biological function of Korean traditional vinegars, crude polysaccharides were isolated from vinegars manufactured at home and abroad, and their chemical properties and immuno-stimulating activities were examined. Three kinds of polysaccharides from Korean brown rice vinegar (KBV-0), Japanese brown rice vinegar (JBV-0) and Korean persimmon vinegar (KPV-0) showed higher immuno-stimulating activity. Component sugar analysis indicated that KBV-0 and JBV-0 mainly consisted of mannan, whereas KPV-0 existed as pectic materials. Three polysaccharides did not show any cytotoxicity to RAW 264.7 cell, whereas RAW 264.7 cells stimulated with KBV-0, JBV-0 and KPV-0 showed enhanced production of various cytokines such as IL-6, IL-12 and TNF-α in dose-dependent manners. However, the activity of KPV-0 was more potent than that of KBV-0 and JBV-0. Also, only KPV-0 augmented FcR II expression related with phagocytosis of macrophages. The results suggest among the tested vinegars, that the Korean persimmon vinegar has the most potent immune-stimulating activity, and it could possibly serve as industrial applications as functional materials.

Chemical Property and Macrophage Stimulating Activity of Polysaccharides isolated from Brown Rice and Persimmon Vinegars