COMPARISON OF DIFFERENT STRAINS OF THE YEAST YARROWIA-LIPOLYTICA FOR CITRIC-ACID PRODUCTION FROM GLUCOSE HYDROL

被引:58
作者
WOJTATOWICZ, M [1 ]
RYMOWICZ, W [1 ]
KAUTOLA, H [1 ]
机构
[1] HELSINKI UNIV TECHNOL,BIOTECHNOL & FOOD ENGN LAB,SF-02150 ESPOO,FINLAND
关键词
YARROWIA-LIPOLYTICA; CITRIC ACID FERMENTATION; GLUCOSE HYDROL; MUTANT; YEAST;
D O I
10.1007/BF02921787
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Four commercial strains and two mutants of the yeast species Yarrowia lipolytica were screened using batch fermentation. Strain Y. lipolytica A-101-1.14 (induced with UV irradiation) was found to be the most suitable for citric acid production from glucose hydrol (39.9% glucose and 2.1% other sugars), a byproduct of glucose production from potato starch. The specific rate of total citric and isocitric acid production was 0.138 g/g.h, the yield on consumed glucose 0.93 g/g, and the productivity achieved was as high as 1.25 g/L.h. All of the tested yeast strains were able to utilize only the glucose from the glucose hydrol medium. Thus, some residual higher oligosaccharides remained in the process effluent.
引用
收藏
页码:165 / 174
页数:10
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