OPTIMIZATION OF A CULTURE-MEDIUM FOR STREPTOMYCIN PRODUCTION USING RESPONSE-SURFACE METHODOLOGY

被引:24
|
作者
SAVAL, S [1 ]
PABLOS, L [1 ]
SANCHEZ, S [1 ]
机构
[1] NATL AUTONOMOUS UNIV MEXICO,FAC VET MED & ZOOTECH,DEPT GENET & STAT,MEXICO CITY,DF,MEXICO
关键词
STREPTOMYCIN; OPTIMIZATION OF CULTURE MEDIUM; RESPONSE-SURFACE METHODOLOGY; EXPERIMENTAL DESIGN;
D O I
10.1016/0960-8524(93)90077-O
中图分类号
S2 [农业工程];
学科分类号
0828 ;
摘要
The effects of all ingredients of a culture medium designed for streptomycin production were evaluated in order to select the variables which influenced antibiotic production. Among them, glucose, beer-yeast autolyzate, sodium chloride and dibasic potassium phosphate showed a substantial effect on this parameter and were therefore selected. The optimum concentration for each variable was determined using an orthogonal-central composite experimental design and the response-surface methodology. The determination coefficient (R2) of the fitted second-order model was 0.9384. Applying this model, the optimum concentration of the four variables was obtained and with this optimized medium the streptomycin titre was increased by 52% with respect to the original medium, using an industrial strain of Streptomyces griseus.
引用
收藏
页码:19 / 25
页数:7
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