| Characterization of low molecular weight organic acids from beech wood treated in supercritical water. | |
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MedLine Citation:
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PMID: 15930559 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Japanese beech (Fagus crenata Blume), its cell wall components, and model compounds were treated by supercritical water (380 degrees C, 100 MPa) for 5 s using a batch-type reactor to investigate the production behavior of low molecular weight organic acids. It was found that cellulose and hemicellulose were decomposed to formic acid, pyruvic acid, glycolic acid, acetic acid, and lactic acid, whereas lignin was barely decomposed to such organic acids under the given conditions. However, after prolonged treatment (380 degrees C, 100 MPa, 4 min) of lignin, some organic acids were recovered owing perhaps to the decomposition of the propyl side chain of lignin. It was additionally revealed that the predominant organic acid recovered was acetic acid, which might be derived from the acetyl group of hemicellulose in Japanese beech. |
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Authors:
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Kei Yoshida; Junko Kusaki; Katsunobu Ehara; Shiro Saka |
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Publication Detail:
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Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Applied biochemistry and biotechnology Volume: 121-124 ISSN: 0273-2289 ISO Abbreviation: Appl. Biochem. Biotechnol. Publication Date: 2005 |
Date Detail:
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Created Date: 2005-06-02 Completed Date: 2005-06-28 Revised Date: 2008-11-21 |
Medline Journal Info:
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Nlm Unique ID: 8208561 Medline TA: Appl Biochem Biotechnol Country: United States |
Other Details:
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Languages: eng Pagination: 795-806 Citation Subset: IM |
Affiliation:
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Graduate School of Energy Science, Kyoto University, Yoshida-honmachi, Sakyo-ku, Kyoto 422, Japan. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Acids
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analysis,
chemical synthesis* Cellulose / chemistry* Chromatography, Supercritical Fluid / methods* Fagus / chemistry* Hot Temperature Lignin / chemistry* Molecular Weight Organic Chemicals / analysis, chemical synthesis* Plant Extracts / chemistry Pressure Water / chemistry* Wood* |
| Chemical | |
Reg. No./Substance:
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0/Acids; 0/Organic Chemicals; 0/Plant Extracts; 7732-18-5/Water; 9004-34-6/Cellulose; 9005-53-2/Lignin |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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