Study on Preparation Technology of Dextrin Using Medium and High Temperature α-Amylases

Abstract

Abstract: Dextrin were prepared by the combined use of α-medium temperature amylase and α-high temperature amylase.The results showed that the optimal preparation conditions of low-dextrose equivalent(DE) value dextrin are determined as follows:temperature 90 ℃,hydrolysis time 20 min,dosage of medium temperature α-amylase 4 U/g starch and dosage of α-high temperature α-amylase 7U/g starch.The combined use of the two kinds of α-amylase can decrease the dosage of amylase and hydrolysis time.

Key words: &alpha, -medium temperature amylase； &alpha, -high temperature amylase； dextrin； technology；

SUN Jun-Liang, LI Xin-Hua, ZENG Jie, LI Guang-Lei, ZHAO Rui-Xiang. Study on Preparation Technology of Dextrin Using Medium and High Temperature α-Amylases[J]. FOOD SCIENCE, 2008, 29(11): 312-315.

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Study on Preparation Technology of Dextrin Using Medium and High Temperature α-Amylases

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