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Fed-batch simultaneous saccharification and fermentation including in-situ recovery for enhanced butanol production from rice straw

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Fed-batch simultaneous saccharification and fermentation including in-situ recovery for enhanced butanol production from rice straw

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dc.contributor.author	Valles Sáez, Alejo
dc.contributor.author	Álvarez Hornos, Francisco Javier
dc.contributor.author	Capilla Lloris, Miguel
dc.contributor.author	San-Valero, Pau
dc.contributor.author	Gabaldón García, Carmen
dc.date.accessioned	2023-11-15T07:33:18Z
dc.date.available	2023-11-15T07:33:18Z
dc.date.issued	2021
dc.identifier.uri	https://hdl.handle.net/10550/91146
dc.description.abstract	This paper describes a study of fed-batch SSFR (simultaneous saccharification, fermentation and recovery) for butanol production from alkaline-pretreated rice straw (RS) in a 2-L stirred tank reactor. The initial solid (9.2% w/v) and enzyme (19.9 FPU g-dw-1) loadings were previously optimized by 50-mL batch SSF assays. Maximum butanol concentration of 24.80 g L-1 was obtained after three biomass feedings that doubled the RS load (18.4% w/v). Butanol productivity (0.344 g L-1h−1) also increased two-fold in comparison with batch SSF without recovery (0.170 g L-1h−1). Although fed-batch SSFR was able to operate with a single initial enzyme dosage, an extra dosage of nutrients was required with the biomass additions to achieve this high productivity. The study showed that SSFR can efficiently improve butanol production from a lignocellulosic biomass accompanied by the efficient use of the enzyme.
dc.language.iso	eng
dc.relation.ispartof	Bioresource Technology, 2021, vol. 342, p. 126020
dc.source	Valles Sáez, Alejo Álvarez Hornos, Francisco Javier Capilla Lloris, Miguel San-Valero, Pau Gabaldón García, Carmen 2021 Fed-batch simultaneous saccharification and fermentation including in-situ recovery for enhanced butanol production from rice straw. Bioresource Technology, 342 126020. https://doi.org/10.1016/j.biortech.2021.126020
dc.subject	química
dc.subject	materials
dc.title	Fed-batch simultaneous saccharification and fermentation including in-situ recovery for enhanced butanol production from rice straw
dc.type	journal article
dc.date.updated	2023-11-15T07:33:19Z
dc.identifier.doi	10.1016/j.biortech.2021.126020
dc.identifier.idgrec	148028
dc.rights.accessRights	open access