| Sugar yields from dilute sulfuric acid and sulfur dioxide pretreatments and subsequent enzymatic hydrolysis of switchgrass. | |
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MedLine Citation:
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PMID: 21835614 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Dacotah switchgrass was pretreated with sulfuric acid concentrations of 0.5, 1.0, and 2.0wt.% at 140, 160, and 180°C and with 1 and 3wt.% sulfur dioxide at 180°C over a range of times. Sulfur dioxide loadings of 0%, 1%, 3%, 5%, and 10%wt.% of dry biomass were also tested at 180°C for 10min. Sugar yields were tracked for pretreatment and subsequent enzymatic hydrolysis to identify conditions for the highest total sugar yields. Pretreatment with 1wt.% dilute sulfuric acid at 140°C for 40min followed by enzymatic hydrolysis with 48.6mg enzyme/g initial glucan in raw biomass resulted in ∼86% of theoretical yield for glucose and xylose combined. For sulfur dioxide pretreatment, the highest total sugar yield of about 87% occurred at 5% SO(2) for 10min and 180°C. However, xylose yields were higher at shorter times and glucose yields at longer times. |
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Authors:
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Jian Shi; Mirvat A Ebrik; Charles E Wyman |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-7-22 |
Journal Detail:
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Title: Bioresource technology Volume: - ISSN: 1873-2976 ISO Abbreviation: - Publication Date: 2011 Jul |
Date Detail:
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Created Date: 2011-8-12 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. Published by Elsevier Ltd. |
Affiliation:
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Center for Environmental Research and Technology, University of California, Riverside, United States. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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