Studies on Protective Action of D-Araboascorbic Acid on L-Ascorbic Acid

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  • ISHII Kiyofumi
    Technical Service Department, Food Products Division, Takeda Chemical Industries, Ltd.
  • TAKAGI Seizi
    Technical Service Department, Food Products Division, Takeda Chemical Industries, Ltd.
  • KUSUI Sadao
    Technical Service Department, Food Products Division, Takeda Chemical Industries, Ltd.
  • NISHIMORI Katsuhiko
    Technical Service Department, Food Products Division, Takeda Chemical Industries, Ltd.

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Other Title
  • D-アラボアスコルビン酸のL-アスコルビン酸に対する保護作用に関する研究
  • D-アラボアスコルビンサン ノ L-アスコルビンサン ニ タイスル ホゴ サヨウ ニ カンスル ケンキュウ

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The protective action of D-araboascorbic acid on L-ascorbic acid was studied in buffer solutions (pH 2.2-8.0) with Cu2+.<br>The separative determination of both acids was carried out with paper chromatography.<br>The results were as follows:<br>1. The degradation of D-araboascorbic acid and L-ascorbic acid was found to happen simultaneously, but the degradation degree of D-araboascorbic acid was larger than that of L-ascorbic acid.<br>2. L-ascorbic acid supplemented with D-araboascorbic acid was more stable than L-ascorbic acid alone in the buffer solutions.

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