High-level expression and characterization of Aspergillus niger ATCC 1015 xylanase B in Komagataella phaffii

被引:14
作者
Liu, Taiyu [1 ]
Zhang, Jianguo [1 ]
机构
[1] Univ Shanghai Sci & Technol, Inst Food Sci & Engn, 516 Jungong Rd, Shanghai 200093, Peoples R China
基金
中国国家自然科学基金;
关键词
Xylanase; Aspergillus niger; Food safety; Gene expression; Komagataella phaffii; PICHIA-PASTORIS; INDUSTRIAL APPLICATIONS; EXTRACTION; CLONING; GENE; ENDO-BETA-1,4-XYLANASE; ENZYMES; SAFETY; PLANTS; FOOD;
D O I
10.1007/s13765-018-0368-2
中图分类号
TS2 [食品工业];
学科分类号
0832 ;
摘要
Owing to the safety issues in food and feed industry, the GH11 xylanase B gene from Aspergillus niger ATCC 1015 was cloned and expressed in Komagataella phaffii. The highest xylanase B activity of 1827.19 U/ml was obtained after optimization of temperature, pH, and methanol addition through flask cultivation. The optimal temperature and pH were 55 A degrees C and 5.0, respectively, and the highest relative activity of xylanase B reached 133.20% with the addition of 10 mmol/l cupric ions. Thus, the high-level recombinant xylanase B obtained in this study could have potential applications in food and feed industry.
引用
收藏
页码:373 / 381
页数:9
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