High production of β-glucosidase from a marine Aspergillus niger immobilized on towel gourd vegetable sponges
High production of β-glucosidase from a marine Aspergillus niger immobilized on towel gourd vegetable sponges作者机构：Ministry of Education of Fermentation Key Laboratory and Collaboration Innovation Centre of Industrial Fermentation Hubei University of Technology Department of Chemical and Biological Engineering Zhejiang University
出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)
年 卷 期：2015年第26卷第8期
页 面：1011-1015页
核心收录：
学科分类：081703[工学-生物化工] 07[理学] 070601[理学-气象学] 08[工学] 0817[工学-化学工程与技术] 0706[理学-大气科学] 0836[工学-生物工程] 082203[工学-发酵工程] 0822[工学-轻工技术与工程]
主 题：glucosidase niger vegetable batch durability earlier salinity biomass reserved producing
摘 要：To produce β-glucosidase by consecutive batch fermentation, a marine Aspergillus niger was immobilized on a natural carrier, towel gourd vegetable sponges. The immobilized mycelia were 0.15 g/g carrier with the immobilized biomass percentage of over 95%. The immobilized mycelia possessed the long durability（22.5 days）. The maximum production occurred 1.5 day earlier by the immobilized mycelia than by the free mycelia. β-Glucosidase production of five consecutive batches was over 110 U/m L. At high salinity,the activity and stability of β-glucosidase from the marine A. niger increased remarkable. Immobilizing the marine A. niger on the novel natural carrier achieved the efficient production of β-glucosidase.
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