Study on Enzymatical Properties of Strain T007Producing Trehalose

Abstract

Abstract: The enzymatical properties of strain T007 producing trehalose were studied.The enzyme had high substrate speciality.It could transfer maltose into trehalose specificly and was named as trehalose synthase.The optimal temperature ranged from 38℃ to 40℃.The optimal pH from 6.6 to 7.2.Mg2+,K+ could activate the enzyme and Ca2+,Ba2+,Mn2+ had the inhibition capability of its activity,while Zn2+,Cu2+,Hg2+ could strongly inhibit its activity.The enzyme had a good stability when kept at 4℃ for two weeks.

Key words: , trehalose； synthase； maltose； enzymatical property；

LIU Jian-Long, YANG Bao, TAN Hai-Gang, WANG Rui-Ming, YANG Lian-Sheng. Study on Enzymatical Properties of Strain T007Producing Trehalose[J]. FOOD SCIENCE, 2006, 27(8): 60-63.

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Study on Enzymatical Properties of Strain T007Producing Trehalose

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