Comparison of different strains of the yeastYarrowia lipolytica for citric acid production from glucose hydrol
- 1 November 1991
- journal article
- research article
- Published by Springer Nature in Applied Biochemistry and Biotechnology
- Vol. 31 (2) , 165-174
- https://doi.org/10.1007/bf02921787
Abstract
Four commercial strains and two mutants of the yeast speciesYarrowia lipolytica were screened using batch fermentation. StrainY.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.Keywords
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