Improved ethanol production from whey with Saccharomyces cerevisiae using permeabilized cells of Kluyveromyces marxianus |
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Authors: | M. Rosenberg,M. Tom ka,J. Ka uch,E. urdí k |
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Affiliation: | M. Rosenberg,M. Tomáška,J. Kaňuch,E. Šurdík |
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Abstract: | Permeabilized cells of Kluyveromyces marxianus CCY eSY2 were tested as the source of lactase in the ethanol fermentation of concentrated deproteinized whey (65–70 g/l lactose) by Saccharomyces cerevisiae CCY 10–13–14. Rapid lactose hydrolysis by small amounts of permeabilized cells following the fermentation of released glucose and galactose by S. cerevisiae resulted in a twofold enhancement of the overall volumetric productivity (1.03 g/l × h), compared to the fermentation in which the lactose was directly fermented by K. marxianus. |
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