河南农业科学2012，Vol.41Issue(6)：152-154,3.
耐酸及耐蛋白酶的木聚糖酶产生菌的筛选
Screening of the Strains of Black Mold Producing Xylanase Stable to Acid and Protease
摘要
Abstract
The residue activities of the crude xylanases of nine mold strains were determined after the enzyme preparation were exposed to acid, pepsin and typsin, repectively, simulating the fowl gastrointestinal environment. The results show that there are lower stabilities to acid and pepsin, with less than 50% and 20% of residue xylanase activities,repectively. However,the stabilities of these xylanases to trypsinase are evidently different, with a range from 30% to 90% of residue xylanase activities. Amongst all the strains, Xylanses produced by Aspergillus niger 3092 and Aspergillus niger UV11 were more resistant to both acid and protease,suggesting good performance in the digestive tract as a feed supplement.关键词
木聚糖酶/胃蛋白酶/胰蛋白酶/胃酸Key words
xylanase/pepsin/trypsinase/gastric acid分类
生物科学引用本文复制引用
刘新育,李学琴,王明道,姜晨冰,陈红歌..耐酸及耐蛋白酶的木聚糖酶产生菌的筛选[J].河南农业科学,2012,41(6):152-154,3.基金项目
河南省科技厅重点攻关项目(0423021600) （0423021600）
