Article

Isolation and characterisation ofSaccharomyces cerevisiae from hydrospheres

Annals of Microbiology (impact factor: 0.69). 04/2012; 58(2):261-264. DOI:10.1007/BF03175326 pp.261-264

ABSTRACT To isolate novel strains ofSaccharomyces cerevisiae, we screened the organisms in various Japanese hydrospheres for yeast strains that are ethanol-tolerant and efficient fermenters.
One such strain, which was designated TY-2, was identified asS. cerevisiae after analysing its 28S rDNA sequence and physiological properties. Unlike the reference industry strain K7, this strain
assimilated cellobiose, creatine and creatinine. It also produced ethanol slightly more efficiently than (K7 (92.7±3.7% vs.
87.8±9.4%, respectively). It did not differ from K7 in its temperature and NaCl tolerance. The cellobiose assimilation activity
of TY-2 may be useful for cellulose biomass fermentation processing.

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Keywords

28S rDNA sequence
 
asS
 
cellobiose assimilation activity
 
cellulose biomass fermentation processing
 
creatine
 
efficient fermenters
 
ethanol
 
ethanol-tolerant
 
NaCl tolerance
 
novel strains ofSaccharomyces cerevisiae
 
reference industry strain K7
 
various Japanese hydrospheres
 
yeast strains
 

Go Ogawa