Purification and properties of the raw starch-degrading α-amylase of Bacillus sp. IMD 434

被引:53
作者
Hamilton, LM [1 ]
Kelly, CT [1 ]
Fogarty, WM [1 ]
机构
[1] Natl Univ Ireland Univ Coll Dublin, Dept Ind Microbiol, Dublin 4, Ireland
关键词
Bacillus; alpha-amylase; purification; raw starch-degrading;
D O I
10.1023/A:1005413816101
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
The paw starch-degrading alpha-amylase of Bacillus sp. IMD 434 was purified to homogeneity by acetone precipitation, ion-exchange chromatography and hydrophobic interaction chromatography. The enzyme had a relative molecular mass of 69,200, displayed maximum activity at pH 6.0 and 65 degrees C and released large amounts of glucose and maltose an hydrolysis of starch.
引用
收藏
页码:111 / 115
页数:5
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