グリコールキトサン上へのα-アミラーゼの固定化

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タイトル別名
  • Immobilization of .ALPHA.-amylase on glycolchitosan.
  • グリコールキトサン上へのα-アミラーゼの固定化〔英文〕
  • グリコールキトサンジョウ ヘ ノ アルファ アミラーゼ ノ コテイカ エイブン

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抄録

As noble solid supports for enzyme immobilization, partly glycolated chitosans were prepared from chitosan. α-Amylase was immobilized on a glycolchitosan with the aid of cross-linking agent glutaraldehyde. The maximum activity yield of enzyme immobilized on glycolchitosan with a degree of substitution of glycol groups of 0.78 was 28%, compared with that on chitosan of 20%.<br>The optimum pH for the conversion of starch to reducing sugars by the immobilized enzyme on glycolchitosan was approximately 6. This was lower than that for the conversion with free enzyme. The optimum temperature for the conversion using immobilized enzyme was 60°C, similar to that for the conversion with free enzyme. Immobilized α-amylase on glycolchitosan retained about 80% of the maximum enzyme activity after repeated use of 6 times.

収録刊行物

  • 繊維学会誌

    繊維学会誌 43 (9), 495-498, 1987

    社団法人 繊維学会

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