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Pretreatment of lignocellulosic wastes to improve ethanol and biogas production: A review
Högskolan i Borås, Institutionen Ingenjörshögskolan.ORCID-id: 0000-0003-4887-2433
Högskolan i Borås, Institutionen Ingenjörshögskolan.
2008 (Engelska)Ingår i: International Journal of Molecular Sciences, ISSN 1422-0067, E-ISSN 1422-0067, Vol. 9, nr 9, s. 1621-1651Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Lignocelluloses are often a major or sometimes the sole components of different waste streams from various industries, forestry, agriculture and municipalities. Hydrolysis of these materials is the first step for either digestion to biogas (methane) or fermentation to ethanol. However, enzymatic hydrolysis of lignocelluloses with no pretreatment is usually not so effective because of high stability of the materials to enzymatic or bacterial attacks. The present work is dedicated to reviewing the methods that have been studied for pretreatment of lignocellulosic wastes for conversion to ethanol or biogas. Effective parameters in pretreatment of lignocelluloses, such as crystallinity, accessible surface area, and protection by lignin and hemicellulose are described first. Then, several pretreatment methods are discussed and their effects on improvement in ethanol and/or biogas production are described. They include milling, irradiation, microwave, steam explosion, ammonia fiber explosion (AFEX), supercritical CO2 and its explosion, alkaline hydrolysis, liquid hot-water pretreatment, organosolv processes, wet oxidation, ozonolysis, dilute- and concentrated-acid hydrolyses, and biological pretreatments.

Ort, förlag, år, upplaga, sidor
Molecular Diversity Preservation International (MDPI) AG. , 2008. Vol. 9, nr 9, s. 1621-1651
Nyckelord [en]
chitin, glucosamine, ethanol, biomass, biogas, lignocelluloses, baker's yeast, saccharomyces, cerevisiae, encapsulation, flocculation, superabsorbents, chitosan, zygomycetes, mucor, rhizopus, rhizomucor, MTBE, biopolymers, furfural, acetic acid, HMF, fed-batch, continuous cultivation, immobilization, denitrification, activated sludge, bread, orange peels, citrus, waste, keratin, methyl tertiary butyl ether, superabsorbents, chitosan
Nyckelord [sv]
Energi och material
Nationell ämneskategori
Annan industriell bioteknik
Identifikatorer
URN: urn:nbn:se:hb:diva-2429DOI: 10.3390/ijms9091621Lokalt ID: 2320/3930OAI: oai:DiVA.org:hb-2429DiVA, id: diva2:870523
Tillgänglig från: 2015-11-13 Skapad: 2015-11-13 Senast uppdaterad: 2017-12-01Bibliografiskt granskad

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Förlagets fulltexthttp://www.mdpi.com/1422-0067/9/9/1621/pdf

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Taherzadeh, M.J.Karimi, K.

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