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dc.contributor.advisorWan, Caixia, 1979-eng
dc.contributor.authorAl Ameri, Maryameng
dc.date.issued2017eng
dc.date.submitted2017 Summereng
dc.descriptionDr. Caixia Wan, Thesis Supervisor.eng
dc.description.abstractIn this study, green solvent-based pretreatment was developed for improving the conversion of switchgrass to acetoin. Deep eutectic solvents (DESs), comprising choline chloride (ChCl) as a hydrogen-bond acceptor (HBA) and various chemical as a hydrogen-bond donor (HBD), were used to pretreat switchgrass. Different HBD groups, including polyalcohol, amid, diazole, and carboxylic acid, were used to synthesize DESs. The DESs using ChCl-formic acid and ChCl-lactic acid-acetic acid showed excellent performance in enhancing switchgrass digestibility. The obtained hydrolysate was successfully detoxified by using overliming detoxification, which was further used for acetoin fermentation by Bacillus licheniformis (NRRL B-642). The yield and titer of the produced acetoin were 0.377 g/g and 19.6 g/L, respectively. Our research demonstrates that DES pretreatment is an effective method for reducing biomass recalcitrance and improving the conversion of biomass into chemicals.eng
dc.description.bibrefIncludes bibliographical references (pages 46-49).eng
dc.description.statementofresponsibilityDr. Caixia Wan, Thesis Supervisor.eng
dc.format.extent1 online resource (vii, 49 pages) : illustrations (some color)eng
dc.identifier.merlinb121804240eng
dc.identifier.oclc1026415893eng
dc.identifier.urihttps://hdl.handle.net/10355/62347
dc.identifier.urihttps://doi.org/10.32469/10355/62347eng
dc.languageEnglisheng
dc.publisherUniversity of Missouri--Columbiaeng
dc.rightsOpenAccess.eng
dc.rights.licenseThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License.
dc.sourceSubmited to University of Missouri--Columbia Graduate School.eng
dc.subject.FASTEutecticseng
dc.subject.FASTBiochemical engineeringeng
dc.subject.FASTSwitchgrasseng
dc.titleDeep eutectic solvent pretreatment for enhancing biochemical conversion of switchgrasseng
dc.typeThesiseng
thesis.degree.disciplineChemical engineering (MU)eng
thesis.degree.grantorUniversity of Missouri--Columbiaeng
thesis.degree.levelMasterseng
thesis.degree.nameM.S.eng


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