| Biological treatment of eucalypt spent sulphite liquors: A way to boost the production of second generation bioethanol. | |
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MedLine Citation:
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PMID: 22019265 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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The fermentation of reducing sugars from hardwood (eucalypt) spent sulphite liquor (HSSL) into ethanol by Pichia (Scheffersomyces) stipitis is hindered by concomitant inhibitors of microbial metabolism. The conditions for the HSSL biological treatment step by Paecilomyces variotii were evaluated and optimised. Two different strategies of reactor operation were compared using single batch (B) and sequential batch reactor (SBR). Biological treatment of HSSL in the SBR revealed the best results with respect to the removal of microbial inhibitors. Also, most of inhibitory compounds, acetic acid, gallic acid, pyrogallol, amongst others, were removed from HSSL by P. variotii before the ethanol fermentation. The bio-detoxified HSSL was subjected to a successful fermentation by P. stipitis, attaining a maximum ethanol concentration of 2.4gL(-1) with a yield of 0.24gethanolgsugars(-1). |
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Authors:
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Susana R Pereira; Spela Ivanuša; Dmitry V Evtuguin; Luísa S Serafim; Ana M R B Xavier |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-10-1 |
Journal Detail:
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Title: Bioresource technology Volume: - ISSN: 1873-2976 ISO Abbreviation: - Publication Date: 2011 Oct |
Date Detail:
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Created Date: 2011-10-24 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9889523 Medline TA: Bioresour Technol Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2011 Elsevier Ltd. All rights reserved. |
Affiliation:
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CICECO, Departamento de Química, Universidade de Aveiro, Campus Universitário de Santiago, P-3810-193 Aveiro, Portugal. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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