サブチリシンインヒビター生産菌培養条件の検討およびインヒビター“Marinostain”の諸性状

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タイトル別名
  • Cultivation conditions for subtilisin inhibitor-producing bacterium and general properties of the inhibitor "Marinostatin".
  • サブチリシンインヒビター生産菌培養条件の検討およびインヒビター"Marinostain"の諸性状〔英文〕
  • サブチリシン インヒビター セイサンキン バイヨウ ジョウケン ノ ケントウ

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抄録

The marine Alteromonas sp. B-10-31 has been found to produce a very strong extracellular subtilisin inhibitor. We named this inhibitor “Marinostatin” and the optimal medium of strain B-10-31 for the production of Marinostatin was studied. Among various different nitrogen and carbon sources, 0.6% (w/v) polypepton (Daigo) proved to be the most effective nitrogen source and 0.05% (w/v) glucose stimulated the bacterial growth and production of Marinostatin. The maximum production (22.0 Unit/ml) was obtained at pH 6.0 in full strength seawater at 20°C and shaking for 24-33 hrs. The production of Marinostatin was almost parallel to the growth of the strain used. Unlike other protease inhibitors reported so far, Marinostatin was unstable in the stationary phase of growth due to the production of a proteolytic enzyme by the strain.<br>The crude Marinostatin was thermostable and showed a wide range of pH stability. It also exhibited inhibitory activity against a wide variety of proteases.

収録刊行物

  • 日本水産学会誌

    日本水産学会誌 51 (5), 805-810, 1985

    公益社団法人 日本水産学会

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