納豆菌の粘質物生産に及ぼすPhytoneの効果

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タイトル別名
  • Stimulative Effect of Phytone on the Production of Sticky Materials in Bacillus subtilis(natto).
  • ナットウキン ノ ネンシツブツ セイサン ニ オヨボス Phytone ノ コ

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説明

The quality of natto depends on the quantity of sticky materials (SM) which are produced by the starter, Bacillus subtilis (natto) strain. In this study, we found that phytone, papain-digested soy protein, significantly enhanced the SM production by B. subtilis (natto). L-Gluta-mate was also found to exhibit the same effect. When 1% phytone was added to SG medium, SM was produced 5-10 times more than that in the standard SG medium. Phytone appeared to enhance both the SM production and cell growth, suggesting that it plays some role in the increase of SM and cell growth. L-Glutamate (3-5%), on the other hand, enhanced SM production but not cell growth. We therefore deduced, that the effect of phytone was different from that of L-glutamate.

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