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.
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Wojtatowicz, M., Rymowicz, W. & Kautola, H. Comparison of different strains of the yeastYarrowia lipolytica for citric acid production from glucose hydrol. Appl Biochem Biotechnol 31, 165–174 (1991). https://doi.org/10.1007/BF02921787
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DOI: https://doi.org/10.1007/BF02921787