Title:	Enzymatic hydrolysis of raw and pre-treated Eucalyptus.
Authors:	COLOMBI, B. L. HEINZ, K. G. H. ZANONI, P. R. S. MAGALHAES, W. L. E. TAVARES, L. B. B.
Affiliation:	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.
Date Issued:	2015
Citation:	In: LATIN AMERICAN CONGRESS, 4., 2015, Florianópolis. Anais. Florianópolis: UFSC, 2015.
Description:	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
Keywords:	Espécie exótica Second generation ethanol Pre-treatment Etanol de segunda geração Pré tratamento Hidrólise enzimática
Notes:	SOLABIAA.
Type of Material:	Artigo em anais e proceedings
Access:	openAccess
Appears in Collections:	Artigo em anais de congresso (CNPF)