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Effects of reduced severity of ammonium sulfite pretreatment on bamboo for high cellulose recovery

In this study, the conditions for the pretreatment of bamboo by ammonium sulfite to achieve high cellulose recovery were investigated and optimized. To obtain higher cellulose recovery under low-severity pretreatment conditions such as ammonia sulfite concentration, pretreatment time and pretreatmen...

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Detalles Bibliográficos
Autores principales: Zhang, Liyue, Liu, Yue, Li, Zhiqiang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9072134/
https://www.ncbi.nlm.nih.gov/pubmed/35530192
http://dx.doi.org/10.1039/c9ra06475c
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author Zhang, Liyue
Liu, Yue
Li, Zhiqiang
author_facet Zhang, Liyue
Liu, Yue
Li, Zhiqiang
author_sort Zhang, Liyue
collection PubMed
description In this study, the conditions for the pretreatment of bamboo by ammonium sulfite to achieve high cellulose recovery were investigated and optimized. To obtain higher cellulose recovery under low-severity pretreatment conditions such as ammonia sulfite concentration, pretreatment time and pretreatment temperature, three-factor and three-level experiments were designed by the Box–Behnken design based on response surface methodology. The results showed that the cellulose recovery yield after 48 h enzymatic hydrolysis could reach 58.36–59.87%; moreover, the recovered cellulose was pretreated with 20% ammonium sulfite at 150 °C for 6 h, and the obtained yield was in agreement with the predicted yield (58.87%). It was about 13-fold higher than that of the untreated bamboo (4.41%). Pretreatment temperature and ammonia sulfite concentration are significantly important factors than pretreatment time in the design space for achieving high cellulose recovery. Moreover, SEM analysis of the pretreated bamboo substrate under optimized conditions illustrated that the biomass surface had become more rough and porous after pretreatment.
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spelling pubmed-90721342022-05-06 Effects of reduced severity of ammonium sulfite pretreatment on bamboo for high cellulose recovery Zhang, Liyue Liu, Yue Li, Zhiqiang RSC Adv Chemistry In this study, the conditions for the pretreatment of bamboo by ammonium sulfite to achieve high cellulose recovery were investigated and optimized. To obtain higher cellulose recovery under low-severity pretreatment conditions such as ammonia sulfite concentration, pretreatment time and pretreatment temperature, three-factor and three-level experiments were designed by the Box–Behnken design based on response surface methodology. The results showed that the cellulose recovery yield after 48 h enzymatic hydrolysis could reach 58.36–59.87%; moreover, the recovered cellulose was pretreated with 20% ammonium sulfite at 150 °C for 6 h, and the obtained yield was in agreement with the predicted yield (58.87%). It was about 13-fold higher than that of the untreated bamboo (4.41%). Pretreatment temperature and ammonia sulfite concentration are significantly important factors than pretreatment time in the design space for achieving high cellulose recovery. Moreover, SEM analysis of the pretreated bamboo substrate under optimized conditions illustrated that the biomass surface had become more rough and porous after pretreatment. The Royal Society of Chemistry 2019-09-25 /pmc/articles/PMC9072134/ /pubmed/35530192 http://dx.doi.org/10.1039/c9ra06475c Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Zhang, Liyue
Liu, Yue
Li, Zhiqiang
Effects of reduced severity of ammonium sulfite pretreatment on bamboo for high cellulose recovery
title Effects of reduced severity of ammonium sulfite pretreatment on bamboo for high cellulose recovery
title_full Effects of reduced severity of ammonium sulfite pretreatment on bamboo for high cellulose recovery
title_fullStr Effects of reduced severity of ammonium sulfite pretreatment on bamboo for high cellulose recovery
title_full_unstemmed Effects of reduced severity of ammonium sulfite pretreatment on bamboo for high cellulose recovery
title_short Effects of reduced severity of ammonium sulfite pretreatment on bamboo for high cellulose recovery
title_sort effects of reduced severity of ammonium sulfite pretreatment on bamboo for high cellulose recovery
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9072134/
https://www.ncbi.nlm.nih.gov/pubmed/35530192
http://dx.doi.org/10.1039/c9ra06475c
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