Simultaneous saccharification and fermentation of preheated Antigonum leptopus (Linn) leaves to ethanol

Simultaneous saccharification and fermentation (SSF) of alkaline hydrogen peroxide pretreated Antigonum leptopus (Linn) leaves to ethanol was optimized using cellulase from Trichoderma reesei QM-9414 (Celluclast from Novo) and Saccharomyces cerevisiae NRRL-Y-132 cells. Contrary to the saccharificati...

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Bibliographic Details
Published inJournal of chemical technology and biotechnology (1986) Vol. 74; no. 11; pp. 1055 - 1060
Main Authors Krishna, SHari, Chowdary, G V, Srirami Reddy, D, Ayyanna, C
Format Journal Article
LanguageEnglish
Published 01.01.1999
Subjects
Enzymes
Ethanol
Fermentation
Hydrogen peroxide
Microorganisms
Plants (botany)
Saccharification
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Summary:Simultaneous saccharification and fermentation (SSF) of alkaline hydrogen peroxide pretreated Antigonum leptopus (Linn) leaves to ethanol was optimized using cellulase from Trichoderma reesei QM-9414 (Celluclast from Novo) and Saccharomyces cerevisiae NRRL-Y-132 cells. Contrary to the saccharification optima (2.5% w/v substrate concentration, 50 degree C, 4.5 pH, 40 FPU cellulase g super(-1) substrate and 24h reaction time), the SSF optima was found to be somewhat different (10% w/v substrate, 40 degree C, 100 FPU cellulase g super(-1) substrate and 72h). Better ethanol yields were obtained with SSF compared with the traditional saccharification and subsequent fermentation (S&F) and when the cellulase was supplemented with beta -glucosidase.
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ISSN:0268-2575