PREBIOTIC COMPOSITION FOR BUTYRIC ACID BACTERIA

摘要

The present invention addresses the problem of providing prebiotics that efficiently proliferate butyric acid bacteria. The prebiotic composition for butyric acid bacteria has, as an active ingredient thereof, an oligosaccharide, or a salt thereof, that comprises a β–D–mannuronic acid and/or an α–L–gluuronic acid and has an unsaturated β–D–mannuronic acid residue or an α–L–gluuronic acid residue on a non-reducing terminal thereof. This oligosaccharide can be produced by causing alginate lyase to act on alginate and/or a salt thereof or a hydrolysate thereof and obtaining an alginate decomposition product.