Probiotics, components containing probiotics and probiotic powders, methods for improving dietary fiber metabolism, methods for breaking down carbohydrates with higher structures, methods for manufacturing oligosaccharides containing glucuronic acid, proteins and their uses, deoxyribonucleic acid (DNA), and methods for determining the maturity of the intestinal flora in young children.

Abstract

The objective of this invention is to provide a technique to assist in the metabolism of dietary fiber in weaning infants. This invention addresses the aforementioned objective using a *Bifidobacterium breve* containing a protein of one of the following: (A), (B), or (C). (A) A protein containing the amino acid sequence of sequence number 2. (B) A protein containing one or more amino acids from the amino acid sequence of sequence number 2 that have been deleted, substituted, and / or added, and possessing glycoside hydrolase 59 (GH59) activity. (C) A protein containing an amino acid sequence that has more than 90% identity with the amino acid sequence of sequence number 2, and possessing GH59 activity.

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