Effect of simultaneous steam explosion and alkaline depolymerization of corncob lignin and cellulose structure
Authors
Ouyan, X.
Chen, L.
Zhang, S.
Yuan, Q.
Wang, W.
Linhardt, Robert J.
Issue Date
2018-07-01
Type
Article
Language
ENG
Keywords
Biology , Chemistry and chemical biology , Chemical and biological engineering , Biomedical engineering
Alternative Title
Abstract
Simultaneous steam explosion and alkaline depolymerization was studied to develop an economic and green process for alkaline pretreatment of lignocellulose. Steam explosion facilitated alkaline delignification and decreased the amount of alkali used during pretreatment. Different amounts of lignin and hemicellulose were removed within 5 min by using different sodium hydroxide concentrations and steam explosion severity. The main component of lignin collected using our simultaneous process was acid-insoluble lignin, reaching a purity of 84 %. Structural analysis indicated that steam explosion and sodium hydroxide had a synergistic effect on the removal of lignin and hemicellulose from corncob. The effect to four simultaneous pretreatment process of delignification transformed cellulose I to cellulose II, enhancing the enzymatic conversion of cellulose to glucose from 22 % to 96 %. The process of simultaneous steam explosion and alkaline depolymerization shows a potential for application in the lignocellulose biorefinery.
Description
Chemical and Biochemical Engineering Quarterly, 32, 177–189
Note : if this item contains full text it may be a preprint, author manuscript, or a Gold OA copy that permits redistribution with a license such as CC BY. The final version is available through the publisher’s platform.
Note : if this item contains full text it may be a preprint, author manuscript, or a Gold OA copy that permits redistribution with a license such as CC BY. The final version is available through the publisher’s platform.
Full Citation
Effect of simultaneous steam explosion and alkaline depolymerization of corncob lignin and cellulose structure, X. Ouyan, L. Chen, S. Zhang, Q. Yuan, W. Wang, R. J. Linhardt, Chemical and Biochemical Engineering Quarterly, 32, 177–189, 2018.
Publisher
Croatian Society of Chemical Engineers
Terms of Use
Journal
Volume
Issue
PubMed ID
DOI
ISSN
18465153
3529568
3529568