TY  - BOOK
AU  - Jamai,L.
AU  - Ettayebi,K.
AU  - El Yamani,J.
AU  - Ettayebi,M.
TI  - Production of ethanol from starch by free and immobilized Candida tropicalis in the presence of alfa-amylase
KW  - STARCH FERMENTATION
KW  - CANDIDA TROPICALIS
KW  - ETHANOL PRODUCTION
KW  - CELL IMMOBILIZATION
N2  - Candida tropicalis is a potentially useful organism for the commercial production of ethanol as it is capable of fermenting starch at a low rate. To enhance this carbon source utilization and increase the rate of alcohol production, we pretreated corn soluble starch with alpha-amylase. Starch liquefaction was sufficient to drive the fermentation and to convert 96 percent substrate to ethanol. Indeed, in the presence of exogenous alpha-amylase, 9 percent (w/v)soluble starch was converted to 43.1g ethanol/l in 65 h with a productivity of 0.65 g/l h. Thus, bio-ethanol production using free and calcium alginate-immobilized C. tropicalis does not require the saccharification step. Furthermore, fed-batch fermentation by free C. tropicalis cells increased the final concentration to 56 g ethanol/l, reaching published values for Saccharomyces cerevisiae recombinant strains expressing both alpha-amylase and glucoamylase
UR  - https://drive.google.com/file/d/15_tglKjpvVb4oPWCTvLylahGRj7dUnE1/view?usp=drivesdk
ER  -