| Detoxification of acidic catalyzed hydrolysate of Kappaphycus alvarezii (cottonii). | |
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MedLine Citation:
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PMID: 21909671 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Red seaweed, Kappaphycus alvarezii, holds great promise for use in biofuel production due to its high carbohydrate content. In this study, we investigated the effect of fermentation inhibitors to the K. alvarezii hydrolysate on cell growth and ethanol fermentation. In addition, detoxification of fermentation inhibitors was performed to decrease the fermentation inhibitory effect. 5-Hydroxymethylfurfural and levulinic acid, which are liberated from acidic hydrolysis, was also observed in the hydrolysate of K. alvarezii. These compounds inhibited ethanol fermentation. In order to remove these inhibitors, activated charcoal and calcium hydroxide were introduced. The efficiency of activated charcoals was examined and over-liming was used to remove the inhibitors. Activated charcoal was found to be more effective than calcium hydroxide to remove the inhibitors. Detoxification by activated charcoal strongly improved the fermentability of dilute acid hydrolysate in the production of bioethanol from K. alvarezii with Saccharomyces cerevisiae. The optimal detoxifying conditions were found to be below an activated charcoal concentration of 5%. |
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Authors:
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Maria Dyah Nur Meinita; Yong-Ki Hong; Gwi-Taek Jeong |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-9-10 |
Journal Detail:
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Title: Bioprocess and biosystems engineering Volume: - ISSN: 1615-7605 ISO Abbreviation: - Publication Date: 2011 Sep |
Date Detail:
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Created Date: 2011-9-12 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101088505 Medline TA: Bioprocess Biosyst Eng Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Department of Fisheries and Marine Science, Jenderal Soedirman University, Purwokerto, Indonesia. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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