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Optimization of acid-mediated delignification of Corn stover, an agriculture residue carbohydrate polymer for improved ethanol production

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Title Optimization of acid-mediated delignification of Corn stover, an agriculture residue carbohydrate polymer for improved ethanol production
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Creator Mandeep K. Gil
Gurvinder S. Kocher
Alla Singh Panesar
 
Subject Corn stover
Delignification
Hydrogen peroxide
Organosolvents
Pretreatment
 
Description Not Available
Lignocellulose is an important carbohydrate feedstock polymer for societally-acceptable second
generation ethanol production. Delignification of lignocellulose is the foremost step towards accessing the
sugars that can be fermented for ethanol production. Hence, the relative efficacies of single organosolv
acid pretreatments, consisting of acetic and propionic acids, for delignification of corn stover have been
optimized. It was observed that amongst the pretreatments involving single organosolv agent, 40% acetic
acid resulted in maximum lignin reduction. The co-pretreatment consisting of Hydrogen peroxide and
acetic acid resulted in more delignification (90.2% as compared to 75.7% in case of acetic acid alone),
though found to be a costlier pretreatment. On the other hand, 40% acetic acid being low-cost and with an
additional advantage of acetic acid recovery through distillation offered an economical choice for
organosolv pretreatment of corn stover. This work thus guides the development of a cost-effective
pretreatment regime for delignification of corn stover.
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Date 2022-02-03T08:50:45Z
2022-02-03T08:50:45Z
2021-12-25
 
Type Article
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/69434
 
Language English
 
Relation Not Available;
 
Publisher Not Available