title: Comparison of different strains of the yeast Yarrowia lipolytica for citric acid production from glucose hydrol.
abstract: 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.
authors.affiliation: Department of Biotechnology and Food Microbiology, Academy of Agriculture, Wroclaw, Poland.
authors.forename: M
authors.initials: M
authors.lastname: Wojtatowicz
authors.forename: W
authors.initials: W
authors.lastname: Rymowicz
authors.forename: H
authors.initials: H
authors.lastname: Kautola
mesh_terms: D002951:Citrates / Q000096:biosynthesis*; D019343:Citric Acid; D005285:Fermentation; D005947:Glucose / Q000378:metabolism*; D007700:Kinetics; D016296:Mutagenesis; D014466:Ultraviolet Rays; D015003:Yeasts / Q000378:metabolism*
chemical_list: D002951:Citrates; D019343:Citric Acid; D005947:Glucose