Study on the Yeast Flora of Distiller's Grains of Multiple-grains Luzhou-flavor Liquor

13 yeast strains were isolated from distiller's grains by use of modified YPD culture medium through repeated sampling and separation during the fermentation process of multiple-grains Luzhou-flavor liquor.The physiological identification of the 13 isolated yeast strains indicated that 9 strains were Hansenula debaryomyces,2 strains were Malamade yeast,and the other two were Candida yeast.The biochemical experiment results showed that there were more than 7 available carbon sources for those strains and all the strains were adapt to anaerobic conditions and grew well as pH value was 2.7 to 3.1 with comparatively low nutritional needs.The properties of those strains might be closely attributable to the production process of multiple-grains Luzhou-flavor liquor.