Optimization of Low Moisture Anhydrous Ammonia (LMAA) Pretreatment for Corn Stover Enzymatic Digestibility during Hydrolysis Process

dc.contributor.author Cheng, Ming-Hsun
dc.contributor.author Cao, Xiong
dc.contributor.author Rosentrater, Kurt
dc.contributor.author Yang, Minliang
dc.contributor.author Rosentrater, Kurt
dc.contributor.department Agricultural and Biosystems Engineering
dc.date 2018-02-17T19:02:45.000
dc.date.accessioned 2020-06-29T22:34:43Z
dc.date.available 2020-06-29T22:34:43Z
dc.date.copyright Fri Jan 01 00:00:00 UTC 2016
dc.date.embargo 2016-07-22
dc.date.issued 2016-01-01
dc.description.abstract <p>Corn stover is one of the most common lignocellulosic biomass used in bioethanol production. In bioethanol production, pretreatment is the first step to break down recalcitrant structure of biomass which is also a critical process for further sugar release and fermentation. Among all chemical pretreatment processes, ammonia is one of the base reagent, and the low moisture anhydrous ammonia (LMAA) process could minimize water and ammonia input in bioethanol production. For obtaining the optimal fermentable sugar yields with the most efficient chemical loadings and pretreating time, several factors were examined for enzymatic digestibility optimization. In LMAA pretreatment process, the ammonia loading, ammoniation time and the particle size of corn stover are the main factors for enzyme digestibility in the hydrolysis process. As the particle size of corn stover was reduced from 1mm to 0.5 mm, the anhydrous ammonia loading was increased from 0.1g to 0.18g NH<sub>3</sub>/g DM biomass under 75<sup>o</sup>C and the ammoniation incubation was extended from 72 hr to 144 hr, the enzyme digestibility would increase from 71.6% to 83.69% with about 17% increments.</p>
dc.description.comments <p>This paper is from 2016 ASABE Annual International Meeting, Paper No. 162459784, pages 1-8 (doi: <a href="http://dx.doi.org/10.13031/aim.20162459784" target="_blank">10.13031/aim.20162459784</a>). St. Joseph, Mich.: ASABE. Posted with permission.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/abe_eng_conf/483/
dc.identifier.articleid 1477
dc.identifier.contextkey 8870566
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath abe_eng_conf/483
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/519
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/abe_eng_conf/483/2016_Cheng_OptimizationLow.pdf|||Sat Jan 15 00:28:01 UTC 2022
dc.source.uri 10.13031/aim.20162459784
dc.subject.disciplines Agriculture
dc.subject.disciplines Bioresource and Agricultural Engineering
dc.subject.keywords Corn stover
dc.subject.keywords LMAA
dc.subject.keywords Hydrolysis
dc.subject.keywords Enzyme digestibility
dc.subject.keywords Optimization
dc.title Optimization of Low Moisture Anhydrous Ammonia (LMAA) Pretreatment for Corn Stover Enzymatic Digestibility during Hydrolysis Process
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication ae6468d9-2286-48ad-9293-5cfa893ea5f3
relation.isOrgUnitOfPublication 8eb24241-0d92-4baf-ae75-08f716d30801
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