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http://hdl.handle.net/20.500.12207/5961
Title: | Bioethanol production from globe artichoke residues: From the field to the fermenter |
Authors: | Pesce, Roberto Alves-Ferreira, Júnia Hslao, Alice Torrado, Ivone Martinez, Alfredo Mauromicale, G. Fernandes, Maria da Conceição |
Keywords: | Crop residues Cynara cardunculus Bioethanol Escherichia coli MS04 Dilute acid hydrolysis Bioenergy |
Issue Date: | Dec-2022 |
Publisher: | Springer |
Citation: | Pesce, G. R., Alves-Ferreira, J., Hsiao, A., Torrado, I., Martinez, A., Mauromicale, G., & Fernandes, M. C. (2023). Bioethanol production from globe artichoke residues: From the field to the fermenter. BioEnergy Research. 16, 1567–1578. https://doi.org/10.1007/s12155-022-10548-5 |
Abstract: | The suitability of globe artichoke crop residues to be transformed into bioethanol was assessed in this paper from the field to the fermenter. A 2-year field trial on “Opera F1” (OF1), a hybrid variety of globe artichoke, resulted in an average annual production of residues of 14 t/ha. The residual biomass of OF1 is made up of 24% glucan and 17% hemicelluloses and is rich in soluble sugars. Water extraction (WE) (100 °C, 15 min) was initially applied to remove simple sugars that can be transformed into saccharification and fermentation inhibitors during the pretreatments. Subsequent dilute acid hydrolysis (DAH) (H2SO4 2%, 121 °C, 1 h) produced a slurry with 17.7, 4.2, and 0.5% (dry matter: DM) of soluble sugars, acetic acid, and total furanic compounds, respectively, and a solid fraction with 52% glucan and 14% xylan, with practically 100% digestibility. Slurry enzymatic hydrolysis (45 FPU/g DM, 7 CBU/g DM, 24 h) had a 69% glucan yield, showing an inhibition of the saccharification process due to the presence of simple sugars and inhibitors. Co-fermentation of the enzymatic slurry with Escherichia coli MS04 produced 12.5 g/L ethanol with a volumetric productivity of 0.52 g/L/h and 76.0% fermentation efficiency after 24 h of fermentation. Considering all sugars generated during DAH, the applied strategy allowed a production of 283 kg/t DM and 2399 kg/ha of bioethanol, against the theoretical value of 2806 kg/ha. |
Peer reviewed: | yes |
URI: | https://hdl.handle.net/20.500.12207/5961 |
metadata.dc.identifier.doi: | https://doi.org/10.1007/s12155-022-10548-5 |
ISSN: | 1939-1242 |
Publisher version: | https://link.springer.com/article/10.1007/s12155-022-10548-5 |
Appears in Collections: | D-TCA - Artigos em revistas indexadas à WoS/Scopus |
Files in This Item:
File | Description | Size | Format | |
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Bioethanol Production from Globe Artichoke Residues.pdf | 835.28 kB | Adobe PDF | View/Open |
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