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Orientador(es)
Resumo(s)
Ethanol production from lignocellulosic material includes three major steps: biomass pretreatment, which fragments the lignocellulosic matrix to facilitate the enzymes access to the substrate; hydrolysis, where the polysaccharides are converted into fermentable sugars (e.g. glucose and xylose) [1]; and finally, fermentation that produces ethanol or other biologically based chemicals (e.g. lactic acid, succinic acid) [2]. The aim was to study the effect of pretreatment operative variables, namely sodium bisulfite and sulfuric acid loadings, temperature and time, on released sugars in Cytisus striatus enzymatic hydrolysis with a Novozymes® cocktail. Pre-treatment intends lignin and hemicelluloses removal, reduced cellulose crystallinity and lignocellulosic network porosity increase in order to facilitate enzyme access.
Descrição
Palavras-chave
Enzymatic hydrolisis Sulfite pretreatment Bioethanol Lignocellulosic biomass
Contexto Educativo
Citação
Vaz, A., Gomes, T., Simões, R. (2019). Enzymatic hydrolysis of Cytisus striatus: acid sulfite pretreatment optimization. Paper presented at 12th European Congress of Chemical Engineering, Florence, 15-19 September, p. 876-877, 2019. ISBN:978-8895608-75-4 DOI:10.3303/BOA1901.
Editora
AIDIC (Italian Association of Chemical Engineering)