Bifidobacteria have been known as beneficial inhabitant of human intestine.They play important roles in manufacture of fermentεd dairy products.Especially, some bifidobacteria produce exopolysaccharide and their antÎ-cancer activities were reported.Therefore, bifidobacteria are notÎced as a matεrial for functional foods.In this study, a Bifidobacterium producing exop이ysacch뻐de was selected from human intestine and characterized.Analyses of carbohydrate utilization pattem and cellular fatty acid profile showed that thε selected strain was similar to Bifidobacterium longum.The productivity of exopolysaccharide from the selected strain was 2.4 mg/ml-culture broth.Thin Layer Chromatography(TLC) and ion chromatography(Bio-LC) analyses wεre camεd out for elucidation of component of exopolysaccharide.Exopolysaccharide produced by B따dobacterium sp.AH25 was composed of 36.3% of galactose, 18.2% of glucose, 2.4% of xylitol.
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Jun‐Bae Ahn (2005) studied this question.