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Advisor(s)
Abstract(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.
Description
Keywords
Enzymatic hydrolisis Sulfite pretreatment Bioethanol Lignocellulosic biomass
Citation
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.
Publisher
AIDIC (Italian Association of Chemical Engineering)