| 摘要 |
PROBLEM TO BE SOLVED: To obtain an improving agent which improves the utilizability of oligosaccharides selectively by bifidobacateria by including substances selected from propionic acid bacteria, lactic acid bacteria, naphthoquinone derivatives and naphthalene derivatives as active ingredients. SOLUTION: This reforming agent is obtained by including substances selected from (A) propionic acid bacteria, e.g. propionic acid bacteria for cheese starter, (B) lactic acid bacteria, e.g. lactic acid bacteria belonging to the genus Enterococcus or Lactococcus, (C) 1,4-naphthoquinone derivatives (e.g. α- naphthoquinone, 2-hydroxy-1,4-naphthoquinone and the like) or (D) naphthalene derivatives (e.g. 1,4-naphthalene dicarboxylic acid and the like). On the above ingredients A and B, in addition to the isolated bacteria itself, cultured cells obtained by cultivation, bacteria itself isolated from the cultured cells, cultured media (cultured supernatants), treated products (concentrates, paste products, dry products, dilute products or the like) can also be suitably used. |
