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Impact of a Pretreatment Step on the Acidogenic Fermentation of Spent Coffee Grounds

2022-08-03Artigo científico Acesso aberto
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dc.contributor.authorPereira, Joana
dc.contributor.authorMelo, Marcelo M. R. de
dc.contributor.authorSilva, Carlos M.
dc.contributor.authorLemos, Paulo C.
dc.contributor.authorSerafim, Luísa S.
dc.contributor.institutionDQ - Departamento de Química
dc.contributor.institutionLAQV@REQUIMTE
dc.contributor.pblMDPI AG
dc.date.accessioned2022-11-23T22:25:17Z
dc.date.available2022-11-23T22:25:17Z
dc.date.issued2022-08-03
dc.descriptionThis work was developed within the scope of the project CICECO-Aveiro Institute of Materials (LA/P/0006/2020), Paulo C. Lemos acknowledges the support by FCT/MCTES for contract IF/01054/2014/CP1224/CT0005.
dc.description.abstractAcidogenic fermentation (AF) is often applied to wastes to produce short-chain organic acids (SCOAs)—molecules with applications in many industries. Spent coffee grounds (SCGs) are a residue from the coffee industry that is rich in carbohydrates, having the potential to be valorized by this process. However, given the recalcitrant nature of this waste, the addition of a pretreatment step can significantly improve AF. In this work, several pretreatment strategies were applied to SCGs (acidic hydrolysis, basic hydrolysis, hydrothermal, microwave, ultrasounds, and supercritical CO2 extraction), evaluated in terms of sugar and inhibitors release, and used in AF. Despite the low yields of sugar extracted, almost all pretreatments increased SCOAs production. Milder extraction conditions also resulted in lower concentrations of inhibitory compounds and, consequently, in a higher concentration of SCOAs. The best results were obtained with acidic hydrolysis of 5%, leading to a production of 1.33 gSCOAs/L, an increase of 185% compared with untreated SCGs.en
dc.description.versionpublishersversion
dc.description.versionpublished
dc.format.extent15
dc.format.extent878982
dc.identifier.doi10.3390/bioengineering9080362
dc.identifier.otherPURE: 46064092
dc.identifier.otherPURE UUID: b0b40a7e-49ac-44b6-9e0a-a98421ee292c
dc.identifier.otherORCID: /0000-0001-6094-0107/work/116780408
dc.identifier.otherScopus: 85137378806
dc.identifier.otherWOS: 000846146900001
dc.identifier.otherPubMed: 36004887
dc.identifier.otherPubMedCentral: PMC9404928
dc.identifier.urihttp://hdl.handle.net/10362/145735
dc.language.isoeng
dc.peerreviewedyes
dc.relationinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50011%2F2020/PT
dc.relationCICECO-Aveiro Institute of Materials
dc.relationCICECO-Aveiro Institute of Materials
dc.relationAssociated Laboratory for Green Chemistry - Clean Technologies and Processes
dc.relationAssociated Laboratory for Green Chemistry - Clean Technologies and Processes
dc.relationinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F50006%2F2020/PT
dc.relationinfo:eu-repo/grantAgreement/FCT/OE/SFRH%2FBD%2F130003%2F2017/PT
dc.titleImpact of a Pretreatment Step on the Acidogenic Fermentation of Spent Coffee Groundsen
dc.typejournal article
degois.publication.issue8
degois.publication.titleBioengineering
degois.publication.volume9
dspace.entity.typePublication
oaire.awardNumberUIDB/50011/2020
oaire.awardNumberUIDP/50011/2020
oaire.awardNumberUIDB/50006/2020
oaire.awardNumberUIDP/50006/2020
oaire.awardNumberSFRH/BD/130003/2017
oaire.awardTitleCICECO-Aveiro Institute of Materials
oaire.awardTitleCICECO-Aveiro Institute of Materials
oaire.awardTitleAssociated Laboratory for Green Chemistry - Clean Technologies and Processes
oaire.awardTitleAssociated Laboratory for Green Chemistry - Clean Technologies and Processes
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50011%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F50011%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50006%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F50006%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/OE/SFRH%2FBD%2F130003%2F2017/PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamOE
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccess
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relation.isProjectOfPublicationb1b19036-75d5-4fb3-81ad-3f27c14ba400
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