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Optimization of very high gravity fermentation process for ethanol production from industrial sugar beet syrup

Joannis-Cassan, Claire and Riess, Julien and Jolibert, Franck and Taillandier, Patricia Optimization of very high gravity fermentation process for ethanol production from industrial sugar beet syrup. (2014) Biomass and Bioenergy, 70. 165-173. ISSN 0961-9534

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Official URL: http://doi.org/10.1016/j.biombioe.2014.07.027

Abstract

In order to reduce production costs and environmental impact of bioethanol from sugar beet low purity syrup 2, an intensification of the industrial alcoholic fermentation carried out by Saccharomyces cerevisiae is necessary. Two fermentation processes were tested: multi-stage batch and fed-batch fermentations with different operating conditions. It was established that the fed-batch process was the most efficient to reach the highest ethanol concentration. This process allowed to minimize both growth and ethanol production inhibitions by high sugar concentrations or ethanol. Thus, a good management of the operating conditions (initial volume and feeding rate) could produce 15.2% (v/v) ethanol in 53 h without residual sucrose and with an ethanol productivity of 2.3 g L h−1.

Item Type:Article
HAL Id:hal-02134676
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Agence de l'Environnement et de la Maîtrise de l'Energie - ADEME (FRANCE)
French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Other partners > Union Nationale de Groupements de Distillateurs d’Alcool - UNGDA (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
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Deposited By: Loetitia MOYA
Deposited On:19 Sep 2018 10:44

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