CULTURE REQUIREMENTS FOR THE PRODUCTION OF PROTEASE BY ASPERGILLUS-ORYZAE IN SOLID-STATE FERMENTATION

被引:78
作者
BATTAGLINO, RA
HUERGO, M
PILOSOF, AMR
BARTHOLOMAI, GB
机构
[1] UNIV BUENOS AIRES,FAC CIENCIAS EXACTAS & NAT,DEPT IND,CIUDAD UNIV,RA-1428 BUENOS AIRES,ARGENTINA
[2] UNIV BUENOS AIRES,FAC INGN,DEPT INGN QUIM,RA-1428 BUENOS AIRES,ARGENTINA
[3] CONSEJO NACL INVEST CIENT & TECN,BUENOS AIRES,ARGENTINA
关键词
D O I
10.1007/BF00172714
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 number of culture conditions for protease production by Aspergillus oryzae NRRL 2160 on solid substrates were investigated. The pH of the medium and the substrate markedly affected protease production. High protease yield was obtained when the fungus was cultivated for 72-96 h on rice hulls: rice bran (7:3), at an initial pH of 7.0. Maximal protease production was achieved at an initial moisture content of 35-40%, corresponding to a water activity range of 0.982-0.986. Casein and gluten were effective inducers. Polyethylene bags proved to be promising containment systems for solid state cultivation.
引用
收藏
页码:292 / 296
页数:5
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