Peculiaritys of carbohydrate catabolism of carotenoproduced yeast phaffia rhodozyma ibm y-5021 cells

H. V. Kolisnyk, E. S. Shakh, M. V. Kaminska, N. I. Boretska, N. I. Tsepko, Y. V. Nebylovskyy, H. I. Nechay

It has been established that the yeast Phaffia rhodozyma cells are characterized by Crabtree effect, i.e. the the process of breezing is depressed as the concentration of glucose in the environment increases and the carbohydrates are utilized by fermentation. The yeast P. rhodozyma is characterized by two-phase growth in the aerobic conditions. During the first growth phase glucose is partially oxidized and the cells produce ethanol, which is utilized during the second growth phase. The main quantity of carotenoids is accumulated by the cells of yeast P. rhodozyma during the breezing and stationary phases of growth.

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