Effect of different pretreatments on delignification pattern and enzymatic hydrolysability of miscanthus, oil palm biomass and typha grass

Abstract : Cumulative pretreatments methods were evaluated for delignification ability and enzymatic digestibility using miscanthus (MxG), empty palm fruit bunch (EFB) and typha grass as feedstocks. Despite their close chemical composition, the three feedstocks unveiled quite different behavior under the same condition of pretreatment. Characterization of ethanol organosol lignins extracted from the three feedstocks by C-13 NMR and FTIR revealed information concerning S/G/H ratios which was important to rationalize the differences among the feedstock behavior. The S/G/H ratios for MxG, EFB and typha, were established to levels of similar to 52/44/4, similar to 68/30/2 and similar to 46/27/27 respectively. The xylans hydrolytic susceptibility were a major cause of difference in behavior of feedstock during the pretreatment process. The influence of the presence of naphthol during autohydrolysis on the delignification ability was studied. A good relationship was observed between S + H/G ratio and the scavenging effect of naphthol.
Type de document :
Article dans une revue
Bioresource Technology, Elsevier, 2013, 135, pp.82-88. 〈10.1016/j.biortech.2012.09.010〉
Liste complète des métadonnées

https://hal.univ-lorraine.fr/hal-01593628
Contributeur : Lermab Ul <>
Soumis le : mardi 26 septembre 2017 - 15:01:25
Dernière modification le : jeudi 12 avril 2018 - 15:04:07

Identifiants

Collections

Citation

Yakindra Prasad Timilsena, Chandana Janaka Abeywickrama, Sudip Kumar Rakshit, Nicolas Brosse. Effect of different pretreatments on delignification pattern and enzymatic hydrolysability of miscanthus, oil palm biomass and typha grass. Bioresource Technology, Elsevier, 2013, 135, pp.82-88. 〈10.1016/j.biortech.2012.09.010〉. 〈hal-01593628〉

Partager

Métriques

Consultations de la notice

28