Publication
Evaluation of the conversion potential of maize stover from soil phytoremediation to bioethanol
| dc.contributor.author | Caetano, Nídia S. | |
| dc.contributor.author | Santos, Mariana | |
| dc.contributor.author | Marques, Ana P. | |
| dc.date.accessioned | 2024-03-06T17:17:22Z | |
| dc.date.available | 2024-12-02T01:30:35Z | |
| dc.date.issued | 2023 | |
| dc.description.abstract | This work aimed to evaluate the conversion potential of maize stover (MS) from phytoremediation of heavy metals contaminated soil to bioethanol. Thus, MS was submitted to an acid pretreatment with 3% (v/v) H2SO4, HCl, HNO3 or CH3COOH at 85 °C for 48 hours. An enzymatic hydrolysis step with Accellerase or Ultraflo was applied at 50 °C for 13 hours. Finally, Saccharomyces cerevisiae was used to ferment the glucose at 37 °C, followed by distillation to recover ethanol. The average yield in ethanol for the MS produced in the two contaminated soils was 0.51 and 0.32 gethanol/gMS for the MS treated with HCl and Accellerase and 0.39 and 0.27 gethanol/gMS for the MS treated with HNO3 and Ultraflo, respectively. For the MS produced in the control soil, the yield was 0.37 and 0.44 gethanol/gMS for the treatment with HNO3 and Ultraflo and HCl and Accellerase, respectively, being the differences in ethanol yield assigned to the dif-ferent cellulose/ hemicellulose content of the MS samples. No metals were detected in the ethanol recovered. This research demonstrated the feasibility of val-orization of MS from heavy metals contaminated soil phytoremediation through ethanol production, contributing to a more sustainable process of soil phytoreme-diation. | pt_PT |
| dc.description.version | info:eu-repo/semantics/acceptedVersion | pt_PT |
| dc.identifier.doi | 10.1007/978-3-031-43559-1_57 | pt_PT |
| dc.identifier.eid | 85185554384 | |
| dc.identifier.isbn | 9783031435584 | |
| dc.identifier.uri | http://hdl.handle.net/10400.14/44162 | |
| dc.language.iso | eng | pt_PT |
| dc.peerreviewed | yes | pt_PT |
| dc.publisher | Springer | pt_PT |
| dc.subject | Biofuel | pt_PT |
| dc.subject | Cadmium | pt_PT |
| dc.subject | Heavy metal contaminated soil | pt_PT |
| dc.subject | Phytoremediation | pt_PT |
| dc.subject | Soil decontamination | pt_PT |
| dc.subject | Zinc | pt_PT |
| dc.title | Evaluation of the conversion potential of maize stover from soil phytoremediation to bioethanol | pt_PT |
| dc.type | book part | |
| dspace.entity.type | Publication | |
| oaire.citation.conferencePlace | Germany | pt_PT |
| oaire.citation.endPage | 611 | pt_PT |
| oaire.citation.startPage | 601 | pt_PT |
| oaire.citation.title | 9th International Conference on Energy and Environment Research - Greening Energy to Shape a Sustainable Future | pt_PT |
| rcaap.rights | openAccess | pt_PT |
| rcaap.type | bookPart | pt_PT |