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https://hdl.handle.net/1822/65580
Título: | Aqueous solutions of deep eutectic systems as reaction media for the saccharification and fermentation of hardwood xylan into xylitol |
Autor(es): | Romani, Aloia Perez Morais, Eduarda S. Soares, Pedro Miguel Oliveira Freire, Mara G. Freire, Carmen S. R. Silvestre, Armando J. D. Domingues, Lucília |
Palavras-chave: | Xylitol Cholinium chloride Urea Xylan Simultaneous saccharification and fermentation |
Data: | Set-2020 |
Editora: | Elsevier 1 |
Revista: | Bioresource Technology |
Citação: | Romaní, Aloia; Morais, Eduarda S.; Soares, P.; Freire, Mara G.; Freire, Carmen S. R.; Silvestre, Armando J. D.; Domingues, Lucília, Aqueous solutions of deep eutectic systems as reaction media for the saccharification and fermentation of hardwood xylan into xylitol. Bioresource Technology, 311(123524), 2020 |
Resumo(s): | The aim of this study was to evaluate the effect of aqueous solutions of deep eutectic solvent, Cholinium Chloride:Urea ([Ch]Cl:U) at 50wt% and 20wt%, using different molar ratios (1:1, 2:1 and 1:2) on the enzymatic hydrolysis of xylan for xylose production and its subsequent bioconversion into xylitol using a recombinant yeast strain. The lowest xylan conversion into xylose (45%) was obtained using 1:2 [Ch]Cl:U molar ratio. On the other hand, the 1:1 [Ch]Cl:U molar ratio, at 20wt% in water, improved this conversion, achieving the highest xylose yield (81.4%). The xylitol production was then optimized with [Ch]Cl:U (1:1) at 20wt% by simultaneous saccharification and fermentation process, attaining 23.67g/L, corresponding to 66.04% of xylitol yield. This study reveals the possibility of using xylan solubilized in DES aqueous solutions directly for xylitol production, thus assembling a one-step process. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/65580 |
DOI: | 10.1016/j.biortech.2020.123524 |
ISSN: | 0960-8524 |
e-ISSN: | 0960-8524 |
Versão da editora: | http://www.journals.elsevier.com/bioresource-technology/ |
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_53704_1.pdf | 480,31 kB | Adobe PDF | Ver/Abrir |