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Fractionating pretreatment of sugarcane bagasse for increasing the enzymatic digestibility of cellulose / 生物工程学报
Chinese Journal of Biotechnology ; (12): 384-392, 2011.
Artículo en Chino | WPRIM | ID: wpr-351522
ABSTRACT
During the bioconversion of lignocellulose to ethanol, the biomass always undergoes pretreatment in order to increase the enzymatic digestibility of cellulose. In present work, we conducted the pretreatment of sugarcane bagasse with aqueous acetic acid for delignification and alkali for deacetylation respectively (Acetoline process) to increase cellulose accessibility for enzymatic hydrolysis. The effects of several factors on the pretreatment effectiveness were investigated. The enzymatic digestibility of pretreated bagasse was further studied. The enzymatic glycan conversion of pretreated solid reached about 80% when it was digested under 7.5% solid consistency with cellulase of 15 FPU/g solid and beta-glucosidase of 10 CBU/g solid for 48 h. Compared with dilute acid pretreatment, Acetoline pretreatment could obtain higher enzymatic glycan conversion. The experimental results indicate that Acetoline is an effective pretreatment method to increase the enzymatic digestibility of sugarcane bagasse.
Asunto(s)
Texto completo: Disponible Índice: WPRIM (Pacífico Occidental) Asunto principal: Biotecnología / Celulasa / Celulosa / Química / Ácido Acético / Saccharum / Etanol / Fuentes Generadoras de Energía / Hidrólisis / Lignina Idioma: Chino Revista: Chinese Journal of Biotechnology Año: 2011 Tipo del documento: Artículo

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Texto completo: Disponible Índice: WPRIM (Pacífico Occidental) Asunto principal: Biotecnología / Celulasa / Celulosa / Química / Ácido Acético / Saccharum / Etanol / Fuentes Generadoras de Energía / Hidrólisis / Lignina Idioma: Chino Revista: Chinese Journal of Biotechnology Año: 2011 Tipo del documento: Artículo