2024年7月18日 星期一 19:43:55

什么是变性淀粉的“取代度”?

 

      答:27物都以取代度(DS)表示取代度程度。取代度是指每个D-吡喃葡萄糖基中被取代基取代的平均羟基数。淀粉中大多数葡萄糖基有三个可被取代的羟基,所以DS的最大值为3。如果粗粗地说,取代度代表3变性淀粉的反应或变性“深度”或程度。

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