| Effects of Propionic Acid and pH on Ethanol Fermentation by Saccharomyces cerevisiae in Cassava Mash. | |
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MedLine Citation:
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PMID: 21701869 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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The effects of propionic acid on ethanol and glycerol production by Saccharomyces cerevisiae in cassava mash were examined along with the influence of pH (4.0, 5.0, and 6.0) and of dissolved solids content (22%, 25%, and 27%). Inhibition by propionic acid increased as solids content increased and medium pH declined. Complete inhibition of ethanol fermentation was observed in mashes at pH 4.0 (60 mM propionic acid for 22% solids and 45 mM for 25% and 27%). Glycerol production linearly decreased with increased undissociated propionic acid concentration in all mashes at all pH levels, which partly contributed to increased final ethanol production when propionic acid concentration in mashes was low (≤30 mM). |
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Authors:
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Cheng-Ming Zhang; Li Jiang; Zhong-Gui Mao; Jian-Hua Zhang; Lei Tang |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-6-24 |
Journal Detail:
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Title: Applied biochemistry and biotechnology Volume: - ISSN: 1559-0291 ISO Abbreviation: - Publication Date: 2011 Jun |
Date Detail:
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Created Date: 2011-6-24 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8208561 Medline TA: Appl Biochem Biotechnol Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, 214122, China. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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