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Pretreatment on Miscanthus lutarioriparious by liquid hot water for efficient ethanol production
BACKGROUND: The C4 perennial grass Miscanthus giganteus has proved to be a promising bio-energy crop. However, the biomass recalcitrance is a major challenge in biofuel production. Effective pretreatment is necessary for achieving a high efficiency in converting the crop to fermentable sugars, and s...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2013
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3664608/ https://www.ncbi.nlm.nih.gov/pubmed/23663476 http://dx.doi.org/10.1186/1754-6834-6-76 |
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author | Li, Hong-Qiang Li, Cheng-Lan Sang, Tao Xu, Jian |
author_facet | Li, Hong-Qiang Li, Cheng-Lan Sang, Tao Xu, Jian |
author_sort | Li, Hong-Qiang |
collection | PubMed |
description | BACKGROUND: The C4 perennial grass Miscanthus giganteus has proved to be a promising bio-energy crop. However, the biomass recalcitrance is a major challenge in biofuel production. Effective pretreatment is necessary for achieving a high efficiency in converting the crop to fermentable sugars, and subsequently biofuels and other valued products. RESULTS: Miscanthus lutarioriparious was pretreated with a liquid hot water (LHW) reactor. Between the pretreatment severity (PS) of 2.56-4.71, the solid recovery was reduced; cellulose recovery remained nearly unchanged; and the Klason lignin content was slightly increased which was mainly due to the dissolving of hemicellulose and the production of a small amount of pseudo-lignin. The result shows that a LHW PS of 4.71 could completely degrade the hemicellulose in Miscanthus. Hemicellulose removal dislodged the enzymatic barrier of cellulose, and the ethanol conversion of 98.27% was obtained. CONCLUSIONS: Our study demonstrated that LHW served as an effective pretreatment in case that Miscanthus lutarioriparious was used for ethanol production by simultaneous saccharification and fermentation. The combination and the pretreatment method of Miscanthus feedstock holds a great potential for biofuel production. |
format | Online Article Text |
id | pubmed-3664608 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2013 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-36646082013-06-04 Pretreatment on Miscanthus lutarioriparious by liquid hot water for efficient ethanol production Li, Hong-Qiang Li, Cheng-Lan Sang, Tao Xu, Jian Biotechnol Biofuels Research BACKGROUND: The C4 perennial grass Miscanthus giganteus has proved to be a promising bio-energy crop. However, the biomass recalcitrance is a major challenge in biofuel production. Effective pretreatment is necessary for achieving a high efficiency in converting the crop to fermentable sugars, and subsequently biofuels and other valued products. RESULTS: Miscanthus lutarioriparious was pretreated with a liquid hot water (LHW) reactor. Between the pretreatment severity (PS) of 2.56-4.71, the solid recovery was reduced; cellulose recovery remained nearly unchanged; and the Klason lignin content was slightly increased which was mainly due to the dissolving of hemicellulose and the production of a small amount of pseudo-lignin. The result shows that a LHW PS of 4.71 could completely degrade the hemicellulose in Miscanthus. Hemicellulose removal dislodged the enzymatic barrier of cellulose, and the ethanol conversion of 98.27% was obtained. CONCLUSIONS: Our study demonstrated that LHW served as an effective pretreatment in case that Miscanthus lutarioriparious was used for ethanol production by simultaneous saccharification and fermentation. The combination and the pretreatment method of Miscanthus feedstock holds a great potential for biofuel production. BioMed Central 2013-05-10 /pmc/articles/PMC3664608/ /pubmed/23663476 http://dx.doi.org/10.1186/1754-6834-6-76 Text en Copyright © 2013 Li et al.; licensee BioMed Central Ltd. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Research Li, Hong-Qiang Li, Cheng-Lan Sang, Tao Xu, Jian Pretreatment on Miscanthus lutarioriparious by liquid hot water for efficient ethanol production |
title | Pretreatment on Miscanthus lutarioriparious by liquid hot water for efficient ethanol production |
title_full | Pretreatment on Miscanthus lutarioriparious by liquid hot water for efficient ethanol production |
title_fullStr | Pretreatment on Miscanthus lutarioriparious by liquid hot water for efficient ethanol production |
title_full_unstemmed | Pretreatment on Miscanthus lutarioriparious by liquid hot water for efficient ethanol production |
title_short | Pretreatment on Miscanthus lutarioriparious by liquid hot water for efficient ethanol production |
title_sort | pretreatment on miscanthus lutarioriparious by liquid hot water for efficient ethanol production |
topic | Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3664608/ https://www.ncbi.nlm.nih.gov/pubmed/23663476 http://dx.doi.org/10.1186/1754-6834-6-76 |
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