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090 _aB-19954
245 1 0 _aProduction of ethanol from starch by free and immobilized Candida tropicalis in the presence of alfa-amylase
490 0 _vBioresource Technology, 98(14), p.2765-2770, 2007
520 3 _aCandida 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.
650 1 4 _aSTARCH FERMENTATION
650 1 4 _aCANDIDA TROPICALIS
650 1 4 _aETHANOL PRODUCTION
650 1 4 _aCELL IMMOBILIZATION
700 1 2 _aJamai, L.
700 1 2 _aEttayebi, K.
700 1 2 _aEl Yamani, J.
700 1 2 _aEttayebi, M.
856 4 0 _uhttps://drive.google.com/file/d/15_tglKjpvVb4oPWCTvLylahGRj7dUnE1/view?usp=drivesdk
_zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
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