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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
19/11/2015 |
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Data da última atualização: |
02/02/2016 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
COLOMBI, B. L.; HEINZ, K. G. H.; ZANONI, P. R. S.; MAGALHAES, W. L. E.; TAVARES, L. B. B. |
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Afiliação: |
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. |
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Título: |
Enzymatic hydrolysis of raw and pre-treated Eucalyptus. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
In: LATIN AMERICAN CONGRESS, 4., 2015, Florianópolis. Anais. Florianópolis: UFSC, 2015. |
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Descrição Física: |
Disponível online. |
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Idioma: |
Inglês |
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Notas: |
SOLABIAA. |
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Conteúdo: |
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. |
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Palavras-Chave: |
Espécie exótica; Etanol de segunda geração; Hidrólise enzimática; Pré tratamento; Pre-treatment; Second generation ethanol. |
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Thesagro: |
Eucalipto; Madeira. |
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Thesaurus Nal: |
enzymatic hydrolysis; Eucalyptus. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/133530/1/2015-PatriciaS-SLAC-Enzymatic.pdf
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Marc: |
LEADER 01997nam a2200301 a 4500
001 2029093
005 2016-02-02
008 2015 bl uuuu u00u1 u #d
100 1 $aCOLOMBI, B. L.
245 $aEnzymatic hydrolysis of raw and pre-treated Eucalyptus.$h[electronic resource]
260 $aIn: LATIN AMERICAN CONGRESS, 4., 2015, Florianópolis. Anais. Florianópolis: UFSC$c2015
300 $cDisponível online.
500 $aSOLABIAA.
520 $aEthanol 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.
650 $aenzymatic hydrolysis
650 $aEucalyptus
650 $aEucalipto
650 $aMadeira
653 $aEspécie exótica
653 $aEtanol de segunda geração
653 $aHidrólise enzimática
653 $aPré tratamento
653 $aPre-treatment
653 $aSecond generation ethanol
700 1 $aHEINZ, K. G. H.
700 1 $aZANONI, P. R. S.
700 1 $aMAGALHAES, W. L. E.
700 1 $aTAVARES, L. B. B.
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Embrapa Florestas (CNPF) |
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