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https://hdl.handle.net/1822/66084
Título: | Multivariate analysis as a tool for selecting the vine pruning pretreatment towards the highest enzymatic hydrolysis yield |
Autor(es): | Filho, Elenilson G. Alves Maciel, Tatiane C. Gudiña, Eduardo José Miguel, Emilio C. Rodrigues, L. R. Rodrigues, Sueli |
Palavras-chave: | Cellulase Enzyme hydrolysis Vine pruning Chemometrics |
Data: | Set-2020 |
Editora: | Elsevier 1 |
Revista: | Biomass & Bioenergy |
Citação: | Filho, Elenilson G. Alves; Maciel, Tatiane C.; Gudiña, Eduardo J.; Miguel, Emilio C.; Rodrigues, Lígia R.; Rodrigues, Sueli, Multivariate analysis as a tool for selecting the vine pruning pretreatment towards the highest enzymatic hydrolysis yield. Biomass & Bioenergy, 140(105653), 2020 |
Resumo(s): | Lignocellulosic materials require pretreatment to remove lignin enabling the enzyme access to the cellulose. This work used multivariate analysis to investigate the acid and alkali pretreatments of vine pruning followed by enzymatic hydrolysis. The best acid pretreatment conditions were H2SO4 1.5%, 120 °C for 30 min, removing 68.7% of hemicellulose, enabling 95.8% of cellulose recovery. However, this treatment was not enough to allow the enzyme hydrolysis. A second step of treatment with NaOH 3.0% at 120 °C without agitation for 60 min led to a material with 75.0% of cellulose and 25.0% of lignin. However, the lowest glucose yield (80.86% and 32.26 g L?1 of glucose) was obtained after the enzyme hydrolysis of this material. The highest glucose yield (98.72% with 35.06 g L?1) was obtained using a pretreated material containing 68.1% of cellulose and 31.9% of lignin obtained after a milder condition (NaOH 2% at 100 °C), thus showing that not all the lignin need to be removed to obtain a high saccharification yield. A less severe pretreatment with no adverse effect on the glucose yield with the advantage of preserving the non-cellulose biomass fractions was effective for vine prune valorization. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/66084 |
DOI: | 10.1016/j.biombioe.2020.105653 |
ISSN: | 0961-9534 |
Versão da editora: | http://www.journals.elsevier.com/biomass-and-bioenergy/ |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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document_53815_1.pdf | 8,96 MB | Adobe PDF | Ver/Abrir |