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Título: Enzymatic hydrolysis of raw and pre-treated Eucalyptus.
Autor: COLOMBI, B. L.
HEINZ, K. G. H.
ZANONI, P. R. S.
MAGALHAES, W. L. E.
TAVARES, L. B. B.
Afiliación: Bruna Lyra Colombi, Universidade Regional de Blumenau; HEINZ, K. G. H., Universidade Regional de Blumenau; PATRICIA RAQUEL SILVA ZANONI, CNPF; WASHINGTON LUIZ ESTEVES MAGALHAES, CNPF; Lorena Benathar Ballod Tavares, Universidade Regional de Blumenau.
Año: 2015
Referencia: In: LATIN AMERICAN CONGRESS, 4., 2015, Florianópolis. Anais. Florianópolis: UFSC, 2015.
Descripción: Ethanol from lignocellulosic biomass (LCB), such as agricultural and forest residues, is known as the second generation (2G) ethanol. Carbohydrate fractions in LCB (cellulose and hemicellulose) are not readily available for microbial fermentation and they need to be released by additional pre-treatment and hydrolysis operations. This process is intrinsically more difficult and costly. In this study the efficiency of enzymatic hydrolysis of the species Eucalyptus urophylla and the hybrid E. urophylla x E. grandis, submitted or not to alkaline pre-treatment with green liquor, has been evaluated. The hydrolysis was carried out with a enzymatic cocktail containing aggressive cellulases, high level of ?-glucosidases and hemicellulase at 6% (g enzyme/g solid), pH 5.0, 50 g.L-1 solids for 72 h, 45 °C and 250 rpm. The pre-treatment promoted disruption of the cellular structure of the samples, allowing easier accessibility for the enzymes and demonstrating higher effectiveness of enzymatic hydrolysis. The maximum efficiency of hydrolysis (81.3%) was observed for pretreated E. urophylla.
Thesagro: Eucalipto
Madeira
NAL Thesaurus: Eucalyptus
enzymatic hydrolysis
Palabras clave: Espécie exótica
Second generation ethanol
Pre-treatment
Etanol de segunda geração
Pré tratamento
Hidrólise enzimática
Notas: SOLABIAA.
Tipo de Material: Artigo em anais e proceedings
Acceso: openAccess
Aparece en las colecciones:Artigo em anais de congresso (CNPF)

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