デヒドロアスコルビン酸のin vitroにおける安定性について(第2報)

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書誌事項

タイトル別名
  • The Stability of Dehydroascorbate in vitro Part II
  • デヒドロアスコルビンサン ノ in vitro ニ オケル アンテイセイ ニ ツイテ 2 ネツ ニ アンテイ ナ インシ
  • The Heat Stable Factar
  • 熱に安定な因子
公開日
1967
DOI
  • 10.1271/nogeikagaku1924.41.7_310
公開者
公益社団法人 日本農芸化学会

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説明

(1) Al3+, Cr3+, CNO-, ClO-, MoO42- and WO42- at pH 4.5 markedly accelerated the hydrolysis reaction of dehydroascorbate to diketogulonate at 37°C. At pH 2.4, the same reaction was accelerated markedly only by Fe3+, or MoO42-.<br> (2) In the presence of Pb2+, Cu2+, Fe3+, CrO42-, CNO- or ClO-, diketogulonate was not produced significantly. While the former four ions accelerated the degradation of diketogulonate more markedly than the hydrolysis of dehydroascorbate, diketogulonate was very stable in the presence of CNO- or ClO-.<br> (3) From the pH and temperature dependence of the reaction in the presence of Fe3+, Al3+, Cr3+, Sn4+, CNO-, ClO-, MoO2- or WO42-, the mechanism of these catalytic reactions was briefly discussed.<br> (4) No remarkable acceleration of the hydrolysis reaction was observed by the addition of various nitrogen compounds.

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