A comparative study of ethanol production by Issatchenkia orientalis strains under stress conditions.
The ability of 13 strains of multi-stress-tolerant Issatchenkia orientalis yeast to produce ethanol was examined under different stress conditions, including conditions of elevated Na₂SO₄ and Na₂SO₄ concentrations and increased heat. The MF-121 strain produced a significant amount of ethanol after the incubation in acidic media containing high concentrations of salt, e.g., 50 g/l Na₂SO₄ at pH 2.0, or at high temperatures, e.g., 43°C, when compared with other strains.
Graduate School of Bioresources, Mie University, Tsu 514-8507, Japan. isono@bio.mie-u.ac.jp
Naoto
N
Isono
Hiroka
H
Hayakawa
Atsuko
A
Usami
Takashi
T
Mishima
Makoto
M
Hisamatsu
D000143:Acids / Q000737:chemistry; D003470:Culture Media / Q000737:chemistry; D000431:Ethanol / Q000378:metabolism*; D005285:Fermentation; D006358:Hot Temperature; D006863:Hydrogen-Ion Concentration; D007218:Industrial Microbiology; D004718:Saccharomycetales / Q000378:metabolism*; D013312:Stress, Physiological; D013431:Sulfates / Q000737:chemistry
D000143:Acids; D003470:Culture Media; D013431:Sulfates; C012036:sodium sulfate; D000431:Ethanol