Hydrothermal processing and enzymatic hydrolysis of sorghum bagasse for fermentable carbohydrates production

Dogaris, I; Karapati, S; Mamma, D; Kalogeris, E; Kekos, D

dc.contributor.author	Dogaris, I	en
dc.contributor.author	Karapati, S	en
dc.contributor.author	Mamma, D	en
dc.contributor.author	Kalogeris, E	en
dc.contributor.author	Kekos, D	en
dc.date.accessioned	2014-03-01T01:30:51Z
dc.date.available	2014-03-01T01:30:51Z
dc.date.issued	2009	en
dc.identifier.issn	0960-8524	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/19658
dc.subject	Cross-synergism	en
dc.subject	Enzymatic hydrolysis	en
dc.subject	Hydrothermal pretreatment	en
dc.subject	Severity factor	en
dc.subject	Sorghum bagasse	en
dc.subject.classification	Agricultural Engineering	en
dc.subject.classification	Biotechnology & Applied Microbiology	en
dc.subject.classification	Energy & Fuels	en
dc.subject.other	Cross-synergism	en
dc.subject.other	Fermentable carbohydrate	en
dc.subject.other	Fusarium oxysporums	en
dc.subject.other	Hemicellulases	en
dc.subject.other	Hydrothermal pretreatment	en
dc.subject.other	Hydrothermal processing	en
dc.subject.other	Hydrothermal treatments	en
dc.subject.other	Hydrothermally treated	en
dc.subject.other	Neurospora crassa	en
dc.subject.other	Pretreatment conditions	en
dc.subject.other	Residual hemicellulose	en
dc.subject.other	Severity factor	en
dc.subject.other	Sorghum bagasse	en
dc.subject.other	Synergistic action	en
dc.subject.other	Treatment time	en
dc.subject.other	Aldehydes	en
dc.subject.other	Bagasse	en
dc.subject.other	Biopolymers	en
dc.subject.other	Cellulose	en
dc.subject.other	Furfural	en
dc.subject.other	Organic acids	en
dc.subject.other	Polysaccharides	en
dc.subject.other	Sugar (sucrose)	en
dc.subject.other	Sugars	en
dc.subject.other	Enzymatic hydrolysis	en
dc.subject.other	5 hydromethylfurfural	en
dc.subject.other	acetic acid	en
dc.subject.other	bagasse	en
dc.subject.other	carbohydrate	en
dc.subject.other	cellulase	en
dc.subject.other	cellulose	en
dc.subject.other	formic acid	en
dc.subject.other	furan derivative	en
dc.subject.other	furfural	en
dc.subject.other	hemicellulase	en
dc.subject.other	polysaccharide	en
dc.subject.other	sugar	en
dc.subject.other	unclassified drug	en
dc.subject.other	carbohydrate	en
dc.subject.other	enzyme	en
dc.subject.other	hydrolysis	en
dc.subject.other	sorghum	en
dc.subject.other	article	en
dc.subject.other	biotechnological production	en
dc.subject.other	carbohydrate synthesis	en
dc.subject.other	controlled study	en
dc.subject.other	fermentation	en
dc.subject.other	Fusarium oxysporum	en
dc.subject.other	heat treatment	en
dc.subject.other	hydrodynamics	en
dc.subject.other	hydrolysis	en
dc.subject.other	Neurospora crassa	en
dc.subject.other	nonhuman	en
dc.subject.other	priority journal	en
dc.subject.other	process optimization	en
dc.subject.other	reaction time	en
dc.subject.other	sorghum	en
dc.subject.other	temperature	en
dc.subject.other	Biotechnology	en
dc.subject.other	Carbohydrates	en
dc.subject.other	Cellulase	en
dc.subject.other	Cellulose	en
dc.subject.other	Chromatography, Ion Exchange	en
dc.subject.other	Enzymes	en
dc.subject.other	Fermentation	en
dc.subject.other	Furaldehyde	en
dc.subject.other	Fusarium	en
dc.subject.other	Glycoside Hydrolases	en
dc.subject.other	Hydrolysis	en
dc.subject.other	Neurospora	en
dc.subject.other	Sorghum	en
dc.subject.other	Temperature	en
dc.subject.other	Water	en
dc.subject.other	Aldehydes	en
dc.subject.other	Bagasse	en
dc.subject.other	Cellulose	en
dc.subject.other	Enzymatic Activity	en
dc.subject.other	Furfural	en
dc.subject.other	Hydrolysis	en
dc.subject.other	Organic Acids	en
dc.subject.other	Polysaccharides	en
dc.subject.other	Sorghum	en
dc.subject.other	Sugar	en
dc.subject.other	Fungi	en
dc.subject.other	Fusarium oxysporum	en
dc.subject.other	Neurospora crassa	en
dc.title	Hydrothermal processing and enzymatic hydrolysis of sorghum bagasse for fermentable carbohydrates production	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.biortech.2009.07.046	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.biortech.2009.07.046	en
heal.language	English	en
heal.publicationDate	2009	en
heal.abstract	Untreated and hydrothermally treated sorghum bagasse (SB) was hydrolyzed to simple sugars by the synergistic action of cellulases and hemicellulases produced by the fungi Fusarium oxysporum and Neurospora crassa. Synergism between the two lignocellulolytic systems was maximized with the application of higher fraction of N. crassa enzymes. Hydrothermolysis of SB was studied at a wide range of treatment times and temperatures. At intense pretreatment conditions (210 degrees C for 20 min; logR(0) = 4.54), the residual hemicellulose percentage was 17.45%, while formation of inhibitory products, 5-hydromethyl-furfural (HMF), furfural, acetic and formic acid, (0.21, 0.51, 3.36 and 1.80 g/l, respectively) remained in acceptable levels. Maximum conversion of cellulose and total polysaccharides of the untreated SB were 23.18% and 18.79%, respectively. Combining hydrothermal treatment and enzymatic hydrolysis of released oligosaccharides and insoluble solids resulted in improvement of cellulose (approximately 15% increase) and total polysaccharides (two fold) hydrolysis compared to that of untreated SB. (C) 2009 Elsevier Ltd. All rights reserved.	en
heal.publisher	ELSEVIER SCI LTD	en
heal.journalName	Bioresource Technology	en
dc.identifier.doi	10.1016/j.biortech.2009.07.046	en
dc.identifier.isi	ISI:000270147700056	en
dc.identifier.volume	100	en
dc.identifier.issue	24	en
dc.identifier.spage	6543	en
dc.identifier.epage	6549	en