This invention includes -kazeinogurikomakuropepuchido as the active ingredient the breeding accelerator of the Lactobacillus being attached lactobacillus and/or it regards the survivability improver. With former survivability improver such as anti- oxidizer, there was desirable influence to flavor and physical properties of the food constituent, from the fact that the effect is shown with self oxidation, persistence of the effect was scanty. According to this invention, flavor of the food constituent and influence to physical properties were not, furthermore persistence of the effect was high and was superior, breeding promotion of the lactobacillus and the like and/or you can expect the effect of survivability improvement.本発明は、κ-カゼイノグリコマクロペプチドを有効成分として含む、ラクトバチルス属乳酸菌の増殖促進剤及び/又は生残性向上剤に関する。抗酸化剤等の従来の生残性向上剤では、食品組成物の風味や物性へ好ましくない影響があり、自己酸化により効果を発揮することから、効果の持続性が乏しかった。本発明によれば、食品組成物の風味や物性への影響がなく、さらに効果の持続性が高くて優れた、乳酸菌等の増殖促進及び/又は生残性向上の効果が期待できる。
