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020 _a9783642378614
_9978-3-642-37861-4
024 7 _a10.1007/978-3-642-37861-4
_2doi
050 4 _aQD431-431.7
072 7 _aPSBZ
_2bicssc
072 7 _aSCI007000
_2bisacsh
082 0 4 _a572.6
_223
245 1 0 _aLignocellulose Conversion
_h[electronic resource] :
_bEnzymatic and Microbial Tools for Bioethanol Production /
_cedited by Vincenza Faraco.
264 1 _aBerlin, Heidelberg :
_bSpringer Berlin Heidelberg :
_bImprint: Springer,
_c2013.
300 _aX, 199 p. 8 illus., 4 illus. in color.
_bonline resource.
336 _atext
_btxt
_2rdacontent
337 _acomputer
_bc
_2rdamedia
338 _aonline resource
_bcr
_2rdacarrier
347 _atext file
_bPDF
_2rda
505 0 _aIntroduction: Potential of Cellulosic Ethanol -- Sources for Lignocellulosic Raw Materials for the Production of Ethanol -- The Pretreatment Step in Lignocellulosic Biomass Conversion: Current Systems and New Biological Systems -- The Saccharification Step: Trichoderma Reesei Cellulase Hyper Producer Strains.- The Saccharification Step: the Main Enzymatic Components -- Extremophilic (Hemi)cellulolytic Microorganisms and Enzymes -- The Alcohol Fermentation Step: the Most Common Ethanologenic Microorganisms Among Yeasts, Bacteria and Filamentous Fungi -- Other Ethanologenic Microorganisms -- Consolidated Bioprocessing for Improving Cellulosic Ethanol Production.
520 _aLignocellulose conversion stands out as a key process for the sustainable production of renewable fuels and chemicals. The use of lignocellulosic materials for second generation ethanol production makes it possible to minimize the conflict between land use for food (and feed) and energy production. The lignocellulosic raw materials are less expensive and they present a more even geographical distribution than does conventional agricultural feedstock. Residual biomass such as agro-industrial wastes, agricultural and forest crop residues and the organic and paper fractions of municipal solid waste make up a large percentage of lignocelluloses. Moreover, second generation ethanol production and use show lower greenhouse gas emissions than the first generation fuels, reducing environmental impacts, particularly in terms of climate change. Lignocellulose conversion into ethanol commonly involves a pretreatment to remove the barrier of lignin and expose plant cell wall polysaccharides, enzymatic saccharification of sugars with a cocktail of cellulolytic and hemicellulolytic enzymes, and fermentation of the sugars with ethanologenic microorganisms. The commercialization of the process to produce cellulosic ethanol is still limited due to the high costs of current technologies, above all the (hemi)cellulolytic enzymes required to hydrolyze the polysaccharides. The enzymatic hydrolysis may take place in a separate step followed by fermentation called separate hydrolysis and fermentation, or it may take place together with the fermentation in a simultaneous saccharification and fermentation of hexoses process or simultaneous saccharification and co-fermentation of both hexoses and pentoses. The ultimate objective is one-step consolidated bioprocessing of lignocellulose into bioethanol, in which all the steps take place in a single reactor where a single micro-organism or microbial consortium converts pre-treated biomass into ethanol. This book presents the main tools, the current technological developments and future prospects in cellulosic ethanol production and research.
650 0 _aLife sciences.
650 0 _aRenewable energy resources.
650 0 _aBiotechnology.
650 0 _aPlant biochemistry.
650 0 _aEnzymology.
650 0 _aMicrobiology.
650 0 _aRenewable energy sources.
650 0 _aAlternate energy sources.
650 0 _aGreen energy industries.
650 1 4 _aLife Sciences.
650 2 4 _aEnzymology.
650 2 4 _aMicrobiology.
650 2 4 _aPlant Biochemistry.
650 2 4 _aBiotechnology.
650 2 4 _aRenewable and Green Energy.
700 1 _aFaraco, Vincenza.
_eeditor.
710 2 _aSpringerLink (Online service)
773 0 _tSpringer eBooks
776 0 8 _iPrinted edition:
_z9783642378607
856 4 0 _uhttp://dx.doi.org/10.1007/978-3-642-37861-4
912 _aZDB-2-SBL
942 _2Dewey Decimal Classification
_ceBooks
999 _c47098
_d47098