STARCH SLURRY HYDROLYSIS USING ALPHA-AMYLASE IMMOBILIZED ON A HOLLOW-FIBER REACTOR

被引：12
|
作者：
JU, YH [1 ]
CHEN, WJ [1 ]
LEE, CK [1 ]
机构：
[1] NATL TAIWAN INST TECHNOL,DEPT CHEM ENGN,TAIPEI 10672,TAIWAN
来源：
ENZYME AND MICROBIAL TECHNOLOGY | 1995年 / 17卷 / 08期
关键词：
STARCH HYDROLYSIS; ALPHA-AMYLASE; IMMOBILIZATION; HOLLOW FIBERS;
D O I：
10.1016/0141-0229(94)00034-O
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：
A hollow-fiber hemodialyzer with alpha-amylase immobilized on the lumen and outer surface of hollow fibers was employed to hydrolyze the high-concentration starch slurry. The viscous starch slurry was first hydrolyzed in the shell side of the hollow-fiber reactor, and the unconverted starch was further hydrolyzed as the slurry circulated through the narrow lumen of hollow fibers. The reactor retained 65% of its initial activity after a 30-batch reaction at 65 degrees C. Starch slurry of 30% (wt/vol) can be hydrolyzed without any difficulties by the hollow-fiber reactor. In continuous operation, a starch hydrolysate of dextrose equivalent 12% was obtained at mean residence time of 9.5 min.
引用
收藏
页码：685 / 688
页数：4
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