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Cellulase production from spent lignocellulose hydrolysates by recombinant aspergillus niger

dc.contributor.authorAlriksson B.
dc.contributor.authorRose S.H.
dc.contributor.authorVan Zyl W.H.
dc.contributor.authorSjode A.
dc.contributor.authorNilvebrant N.-O.
dc.contributor.authorJonsson L.J.
dc.date.accessioned2011-05-15T15:56:31Z
dc.date.available2011-05-15T15:56:31Z
dc.date.issued2009
dc.identifier.citationApplied and Environmental Microbiology
dc.identifier.citation75
dc.identifier.citation8
dc.identifier.issn992240
dc.identifier.other10.1128/AEM.02479-08
dc.identifier.urihttp://hdl.handle.net/10019.1/9896
dc.description.abstractA recombinant Aspergillus niger strain expressing the Hypocrea jecorina endoglucanase Cel7B was grown on spent hydrolysates (stillage) from sugarcane bagasse and spruce wood. The spent hydrolysates served as excellent growth media for the Cel7B-producing strain, A. niger D15[egI], which displayed higher endoglucanase activities in the spent hydrolysates than in standard medium with a comparable monosaccharide content (e.g., 2,100 nkat/ml in spent bagasse hydrolysate compared to 480 nkat/ml in standard glucose-based medium). In addition, A. niger D15[egI] was also able to consume or convert other lignocellulose-derived compounds, such as acetic acid, furan aldehydes, and phenolic compounds, which are recognized as inhibitors of yeast during ethanolic fermentation. The results indicate that enzymes can be produced from the stillage stream as a high-value coproduct in secondgeneration bioethanol plants in a way that also facilitates recirculation of process water. Copyright © 2009, American Society for Microbiology. All Rights Reserved.
dc.subjectAspergillus niger
dc.subjectBio ethanols
dc.subjectCellulase productions
dc.subjectCoproduct
dc.subjectEndo-glucanase
dc.subjectEthanolic fermentations
dc.subjectGrowth medias
dc.subjectHypocrea
dc.subjectLignocellulose hydrolysates
dc.subjectNiger
dc.subjectPhenolic compounds
dc.subjectProcess waters
dc.subjectRe circulations
dc.subjectSpruce woods
dc.subjectStillage
dc.subjectSugar cane bagasse
dc.subjectAldehydes
dc.subjectBagasse
dc.subjectBiochemical engineering
dc.subjectCellulose
dc.subjectEthanol
dc.subjectGlucose
dc.subjectPhenols
dc.subjectLignin
dc.subjectacetic acid
dc.subjectaldehyde
dc.subjectbagasse
dc.subjectcellulase
dc.subjectfuran derivative
dc.subjectglucan synthase
dc.subjectglucose
dc.subjectlignocellulose
dc.subjectmonosaccharide
dc.subjectphenol derivative
dc.subjectprotein hydrolysate
dc.subjectwater
dc.subjectenzyme activity
dc.subjectfungus
dc.subjectgene expression
dc.subjectinhibition
dc.subjectrecombination
dc.subjectsugar
dc.subjectyeast
dc.subjectarticle
dc.subjectAspergillus niger
dc.subjectcomparative study
dc.subjectenzyme activity
dc.subjectenzyme synthesis
dc.subjectfermentation
dc.subjectfungus growth
dc.subjectnonhuman
dc.subjectAcetic Acid
dc.subjectAspergillus niger
dc.subjectCellulase
dc.subjectFurans
dc.subjectHypocrea
dc.subjectLignin
dc.subjectPhenols
dc.subjectRecombinant proteins
dc.subjectAldehydes
dc.subjectBagasse
dc.subjectBiochemistry
dc.subjectCellulose
dc.subjectEthanol
dc.subjectFermentation
dc.subjectGlucose
dc.subjectLignins
dc.subjectPhenols
dc.subjectYeasts
dc.subjectAspergillus niger
dc.subjectHypocrea jecorina
dc.subjectPicea
dc.titleCellulase production from spent lignocellulose hydrolysates by recombinant aspergillus niger
dc.typeArticle
dc.description.versionArticle


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