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A Detoxification-Free Process for Enhanced Ethanol Production From Corn Fiber Under Semi-Simultaneous Saccharification and Fermentation
Corn fiber, a by-product from the corn-processing industry, is an attractive feedstock for cellulosic ethanol because of its rich carbohydrate content (mainly residual starch, cellulose, and hemicellulose), abundant reserves, easy collection, and almost no transportation cost. However, the complex s...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Frontiers Media S.A.
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9005949/ https://www.ncbi.nlm.nih.gov/pubmed/35432253 http://dx.doi.org/10.3389/fmicb.2022.861918 |
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author | Guo, Yingjie Huang, Jiamin Xu, Nuo Jia, Hexue Li, Xuezhi Zhao, Jian Qu, Yinbo |
author_facet | Guo, Yingjie Huang, Jiamin Xu, Nuo Jia, Hexue Li, Xuezhi Zhao, Jian Qu, Yinbo |
author_sort | Guo, Yingjie |
collection | PubMed |
description | Corn fiber, a by-product from the corn-processing industry, is an attractive feedstock for cellulosic ethanol because of its rich carbohydrate content (mainly residual starch, cellulose, and hemicellulose), abundant reserves, easy collection, and almost no transportation cost. However, the complex structure and components of corn fiber, especially hemicellulose, make it difficult to be effectively hydrolyzed into fermentable sugars through enzymatic hydrolysis. This study developed a simple and easy industrialized process without detoxification treatment for high-yield ethanol produced from corn fiber. Corn fiber was pretreated by dilute acid under the conditions optimized by Box-Behnken design (0.5% H(2)SO(4) at 105°C for 43 min), and 81.8% of total sugars, including glucose, xylose, and arabinose, could be recovered, then the mixture (solid and hydrolysates) was directly used for semi-simultaneous saccharification and fermentation without detoxification, and ethanol yield reached about 81% of the theoretical yield. |
format | Online Article Text |
id | pubmed-9005949 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-90059492022-04-14 A Detoxification-Free Process for Enhanced Ethanol Production From Corn Fiber Under Semi-Simultaneous Saccharification and Fermentation Guo, Yingjie Huang, Jiamin Xu, Nuo Jia, Hexue Li, Xuezhi Zhao, Jian Qu, Yinbo Front Microbiol Microbiology Corn fiber, a by-product from the corn-processing industry, is an attractive feedstock for cellulosic ethanol because of its rich carbohydrate content (mainly residual starch, cellulose, and hemicellulose), abundant reserves, easy collection, and almost no transportation cost. However, the complex structure and components of corn fiber, especially hemicellulose, make it difficult to be effectively hydrolyzed into fermentable sugars through enzymatic hydrolysis. This study developed a simple and easy industrialized process without detoxification treatment for high-yield ethanol produced from corn fiber. Corn fiber was pretreated by dilute acid under the conditions optimized by Box-Behnken design (0.5% H(2)SO(4) at 105°C for 43 min), and 81.8% of total sugars, including glucose, xylose, and arabinose, could be recovered, then the mixture (solid and hydrolysates) was directly used for semi-simultaneous saccharification and fermentation without detoxification, and ethanol yield reached about 81% of the theoretical yield. Frontiers Media S.A. 2022-03-30 /pmc/articles/PMC9005949/ /pubmed/35432253 http://dx.doi.org/10.3389/fmicb.2022.861918 Text en Copyright © 2022 Guo, Huang, Xu, Jia, Li, Zhao and Qu. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Microbiology Guo, Yingjie Huang, Jiamin Xu, Nuo Jia, Hexue Li, Xuezhi Zhao, Jian Qu, Yinbo A Detoxification-Free Process for Enhanced Ethanol Production From Corn Fiber Under Semi-Simultaneous Saccharification and Fermentation |
title | A Detoxification-Free Process for Enhanced Ethanol Production From Corn Fiber Under Semi-Simultaneous Saccharification and Fermentation |
title_full | A Detoxification-Free Process for Enhanced Ethanol Production From Corn Fiber Under Semi-Simultaneous Saccharification and Fermentation |
title_fullStr | A Detoxification-Free Process for Enhanced Ethanol Production From Corn Fiber Under Semi-Simultaneous Saccharification and Fermentation |
title_full_unstemmed | A Detoxification-Free Process for Enhanced Ethanol Production From Corn Fiber Under Semi-Simultaneous Saccharification and Fermentation |
title_short | A Detoxification-Free Process for Enhanced Ethanol Production From Corn Fiber Under Semi-Simultaneous Saccharification and Fermentation |
title_sort | detoxification-free process for enhanced ethanol production from corn fiber under semi-simultaneous saccharification and fermentation |
topic | Microbiology |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9005949/ https://www.ncbi.nlm.nih.gov/pubmed/35432253 http://dx.doi.org/10.3389/fmicb.2022.861918 |
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