产碱菌麦芽四糖淀粉酶水解淀粉的特性  

STARCH-DIGESTING PATTERNS OF MALTOTETRAOSE-FORMING AMYLASE FROM ALCALIGENES SP.

作　　者：朱静[1] 严自正[1] 周健[1] 张树政[1] 

机构地区：[1]中国科学院微生物研究所,北京100080

出　　处：《微生物学报》1996年第3期187-195,共9页Acta Microbiologica Sinica

基　　金：中国科学院及"八五"攻关资助项目

摘　　要：产碱菌麦芽四糖淀粉酶水解不同来源淀粉的产物组成有差异:G4占81.5％～98.8％,G_3占0％～9.6％,G_2占0％～5.9％。不同淀粉的水解速度在4170～9036mgGlch^-(1)·mg^(-1)之间。对可溶性淀粉的水解产物为6-型。麦芽四糖淀粉酶能被小麦、玉米及马铃薯的生淀粉吸附,其吸附率分别为60.2％、50.0％及52.2％,相对水解率分别为4.5％、2.7％及0％,水解生淀粉的主要产物为G_4。When starch from different sources were treated with maltotetraose-forming amylase from Alcaligenes sp., their product compositions were different: G481.5%-98.8%, G30%- 9.6% and G20%- 5.9%. Their hydrolysis velocities were about 4170- 9036 mgGlc ·h-1 · mg-1. The product from soluble starch was α-maltotetraose. The amylase can be adsorbed on raw-starch from wheat, corn, and potato with adsorption rates of 60.2%, 50% and 52.2% and digestion rates of 4.5%, 2.7% and 0%, respectively. The main product from raw-starch was G4.

关 键 词：产碱菌 细菌 麦芽四糖淀粉酶 淀粉 

分 类 号：Q939.106[生物学—微生物学] TQ925.1[轻工技术与工程—发酵工程]