| Ethanol production from Saccharina japonica using an optimized extremely low acid pretreatment followed by simultaneous saccharification and fermentation. | |
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MedLine Citation:
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PMID: 23131631 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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An extremely low acid (ELA) pretreatment using 0.06% (w/w) sulfuric acid at 170°C for 15min was employed to extract non-glucan components from Saccharina japonica, a brown macroalgae. Subsequent simultaneous saccharification and fermentation (SSF) was conducted using Saccharomyces cerevisiae DK 410362 and cellulase (15 FPU/g-glucan) and ß-glucosidase (70 pNPGU/g-glucan). Deionized water was used for making fermentation suspension. After the ELA pretreatment, a glucan content of 29.10% and an enzymatic digestibility of 83.96% was obtained for pretreated S. japonica. These values are 4.2- and 2.4-fold higher, respectively, than those of obtained with untreated S. japonica. In SSF, a bioethanol concentration of 6.65g/L was obtained, corresponding to a glucose equivalent concentration of 13.01g/L, which indicated an SSF yield of 67.41% based on the total available glucan of the pretreated S. japonica. The remaining separated liquid hydrolysate, which contains mannitol and alginate-derived oligosaccharides can be applied to other fermentations. |
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Authors:
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Ji Ye Lee; Pan Li; Jieun Lee; Hyun Jin Ryu; Kyeong Keun Oh |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-10-11 |
Journal Detail:
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Title: Bioresource technology Volume: 127C ISSN: 1873-2976 ISO Abbreviation: Bioresour. Technol. Publication Date: 2012 Oct |
Date Detail:
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Created Date: 2012-11-7 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: 119-125 Citation Subset: - |
Copyright Information:
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Copyright © 2012 Elsevier Ltd. All rights reserved. |
Affiliation:
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Department of Applied Chemical Engineering, Dankook University, Cheonan, Chungnam 330-714, South Korea. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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