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Mild Acid-Catalyzed Atmospheric Glycerol Organosolv Pretreatment Effectively Improves Enzymatic Hydrolyzability of Lignocellulosic Biomass
[Image: see text] Conventional atmospheric glycerol organosolv pretreatment is energy-intensive with the requirement of long time and/or high temperature. Herein, acid-catalyzed atmospheric glycerol organosolv (ac-AGO) pretreatment was developed under a mild condition to modify the sugarcane bagasse...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2019
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6882100/ https://www.ncbi.nlm.nih.gov/pubmed/31788636 http://dx.doi.org/10.1021/acsomega.9b02993 |
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author | Pascal, Kaneza Ren, Hongyan Sun, Fubao Fuelbiol Guo, Shuxian Hu, Jinguang He, Jing |
author_facet | Pascal, Kaneza Ren, Hongyan Sun, Fubao Fuelbiol Guo, Shuxian Hu, Jinguang He, Jing |
author_sort | Pascal, Kaneza |
collection | PubMed |
description | [Image: see text] Conventional atmospheric glycerol organosolv pretreatment is energy-intensive with the requirement of long time and/or high temperature. Herein, acid-catalyzed atmospheric glycerol organosolv (ac-AGO) pretreatment was developed under a mild condition to modify the sugarcane bagasse structure for improving enzymatic hydrolyzability. Using single factor and central composite design experiments, ac-AGO pretreatment was optimized at 200 °C for 15 min with 0.06% H(2)SO(4) addition, wherein the hemicellulose and lignin removal rates were 82 and 52%, respectively, with extremely high cellulose retention of 98%. The ac-AGO-pretreated substrate exhibited good enzymatic hydrolyzability at a modest cellulase loading, affording a 70% glucose yield after 72 h. Multiple analysis tools were used to correlate the hydrolyzability of the substrate with its structural features. The results indicated that the mild ac-AGO pretreatment can modify the lignocellulosic biomass structure to achieve good hydrolyzability, mainly resulting in significant hemicellulose removal. |
format | Online Article Text |
id | pubmed-6882100 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-68821002019-11-29 Mild Acid-Catalyzed Atmospheric Glycerol Organosolv Pretreatment Effectively Improves Enzymatic Hydrolyzability of Lignocellulosic Biomass Pascal, Kaneza Ren, Hongyan Sun, Fubao Fuelbiol Guo, Shuxian Hu, Jinguang He, Jing ACS Omega [Image: see text] Conventional atmospheric glycerol organosolv pretreatment is energy-intensive with the requirement of long time and/or high temperature. Herein, acid-catalyzed atmospheric glycerol organosolv (ac-AGO) pretreatment was developed under a mild condition to modify the sugarcane bagasse structure for improving enzymatic hydrolyzability. Using single factor and central composite design experiments, ac-AGO pretreatment was optimized at 200 °C for 15 min with 0.06% H(2)SO(4) addition, wherein the hemicellulose and lignin removal rates were 82 and 52%, respectively, with extremely high cellulose retention of 98%. The ac-AGO-pretreated substrate exhibited good enzymatic hydrolyzability at a modest cellulase loading, affording a 70% glucose yield after 72 h. Multiple analysis tools were used to correlate the hydrolyzability of the substrate with its structural features. The results indicated that the mild ac-AGO pretreatment can modify the lignocellulosic biomass structure to achieve good hydrolyzability, mainly resulting in significant hemicellulose removal. American Chemical Society 2019-11-12 /pmc/articles/PMC6882100/ /pubmed/31788636 http://dx.doi.org/10.1021/acsomega.9b02993 Text en Copyright © 2019 American Chemical Society This is an open access article published under an ACS AuthorChoice License (http://pubs.acs.org/page/policy/authorchoice_termsofuse.html) , which permits copying and redistribution of the article or any adaptations for non-commercial purposes. |
spellingShingle | Pascal, Kaneza Ren, Hongyan Sun, Fubao Fuelbiol Guo, Shuxian Hu, Jinguang He, Jing Mild Acid-Catalyzed Atmospheric Glycerol Organosolv Pretreatment Effectively Improves Enzymatic Hydrolyzability of Lignocellulosic Biomass |
title | Mild Acid-Catalyzed Atmospheric Glycerol Organosolv
Pretreatment Effectively Improves Enzymatic Hydrolyzability of Lignocellulosic
Biomass |
title_full | Mild Acid-Catalyzed Atmospheric Glycerol Organosolv
Pretreatment Effectively Improves Enzymatic Hydrolyzability of Lignocellulosic
Biomass |
title_fullStr | Mild Acid-Catalyzed Atmospheric Glycerol Organosolv
Pretreatment Effectively Improves Enzymatic Hydrolyzability of Lignocellulosic
Biomass |
title_full_unstemmed | Mild Acid-Catalyzed Atmospheric Glycerol Organosolv
Pretreatment Effectively Improves Enzymatic Hydrolyzability of Lignocellulosic
Biomass |
title_short | Mild Acid-Catalyzed Atmospheric Glycerol Organosolv
Pretreatment Effectively Improves Enzymatic Hydrolyzability of Lignocellulosic
Biomass |
title_sort | mild acid-catalyzed atmospheric glycerol organosolv
pretreatment effectively improves enzymatic hydrolyzability of lignocellulosic
biomass |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6882100/ https://www.ncbi.nlm.nih.gov/pubmed/31788636 http://dx.doi.org/10.1021/acsomega.9b02993 |
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