Isolation and Identification of Thermotolerant Yeast Strains from Maotai Distiller's Grains

In this study, 12 yeast strains were isolated from Maotai distiller's grains, then they were cultivated at 37 to 47 ℃, and they were identified through colony morphology analysis and physiological and biochemical analysis. The results suggested that, 2 yeast strains grew well at 47 ℃ and named No.1 and No.2 strain, and they were identified as Torulopsis and Brettanomyces according to their morphological features(colony, cells, ascospores, pseudohyphae and ballistospore) and their biological and biochemical characteristics. Those 2 strains were of certain research values.