H2SO4 - catalyzed hydrothermal pretreatment of triploid poplar to enhance enzymatic hydrolysis / Haiyan Yang in Industrial & engineering chemistry research, Vol. 51 N° 36 (Septembre 2012)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 51 N° 36 (Septembre 2012) . - pp. 11598-11604 Titre : H2SO4 - catalyzed hydrothermal pretreatment of triploid poplar to enhance enzymatic hydrolysis Type de document : texte imprimé Auteurs : Haiyan Yang, Auteur ; Kun Wang, Auteur ; Feng Xu, Auteur Année de publication : 2012 Article en page(s) : pp. 11598-11604 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Hydrolysis Pretreatment Catalytic reaction Résumé : Sealed structure of plant biomass resists assault on cellulose from enzymatic deconstruction. In this study, pretreatments of triploid poplar were conducted with 0.5 wt % H2SO4 at various temperatures (100―200 °C) to loosen the intricate structure. The effect of temperature on cellulose structure and enzymatic digestibility was evaluated. The results indicated that the effective removal of hemicelluloses and amorphous cellulose incurred the increment of crystalline indices of residues. Companied with the degradation of carbohydrates, inhibitory compounds were accumulated with the increasing severity. On the whole, 120 °C was considered as the optimum temperature by taking the balance between substrate digestibility and recovery into account. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26350324 [article] H2SO4 - catalyzed hydrothermal pretreatment of triploid poplar to enhance enzymatic hydrolysis [texte imprimé] / Haiyan Yang, Auteur ; Kun Wang, Auteur ; Feng Xu, Auteur . - 2012 . - pp. 11598-11604. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 36 (Septembre 2012) . - pp. 11598-11604 Mots-clés : Hydrolysis Pretreatment Catalytic reaction Résumé : Sealed structure of plant biomass resists assault on cellulose from enzymatic deconstruction. In this study, pretreatments of triploid poplar were conducted with 0.5 wt % H2SO4 at various temperatures (100―200 °C) to loosen the intricate structure. The effect of temperature on cellulose structure and enzymatic digestibility was evaluated. The results indicated that the effective removal of hemicelluloses and amorphous cellulose incurred the increment of crystalline indices of residues. Companied with the degradation of carbohydrates, inhibitory compounds were accumulated with the increasing severity. On the whole, 120 °C was considered as the optimum temperature by taking the balance between substrate digestibility and recovery into account. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26350324

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