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Continuous ethanol production from sugarcane molasses using a column reactor of immobilized Saccharomyces cerevisiae HAU‐1
Author(s) -
Sheoran A.,
Yadav B.S.,
Nigam P.,
Singh D.
Publication year - 1998
Publication title -
journal of basic microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.58
H-Index - 54
eISSN - 1521-4028
pISSN - 0233-111X
DOI - 10.1002/(sici)1521-4028(199805)38:2<123::aid-jobm123>3.0.co;2-9
Subject(s) - fermentation , calcium alginate , sucrose , dilution , ethanol , chemistry , yeast , ethanol fuel , ethanol fermentation , bioreactor , sugar , chromatography , food science , saccharomyces cerevisiae , biochemistry , calcium , organic chemistry , thermodynamics , physics
A fermentation system for the continuous ethanol production from sucrose and molasses using calcium alginate immobilized Saccharomyces cerevisiae strain HAU‐1 has been optimised. Immobilization of active yeast cells (30%, w/v) was accomplished in 1.5% calcium alginate and these yeastbeads were employed for ethanol production in a vertical column reactor. High ethanol productivity was achieved with a medium containing 10%, w/v sucrose at a dilution rate of 0.20 h —1 . Alginate beads containing 30—50% yeast cell — mass resulted in high productivity 60.4 g l —1 h —1 ). Sugarcane molasses containing 15% total sugars was fermented in column reactor to produce 6.0%, v/v ethanol in continuous system. These yields could be improved to 7.0% with overall 11% increase in fermentation — efficiency with the use of acid‐clarified sugar cane molasses medium.