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

Detalhes bibliográficos
Autor(a) principal: Pereira, Joana
Data de Publicação: 2022
Outros Autores: Melo, Marcelo M. R. de, Silva, Carlos M., Lemos, Paulo C., Serafim, Luísa S.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10362/145735
Resumo: This 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.
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spelling Impact of a Pretreatment Step on the Acidogenic Fermentation of Spent Coffee GroundsThis 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.Acidogenic 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.DQ - Departamento de QuímicaLAQV@REQUIMTERUNPereira, JoanaMelo, Marcelo M. R. deSilva, Carlos M.Lemos, Paulo C.Serafim, Luísa S.2022-11-23T22:25:17Z2022-08-032022-08-03T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article15application/pdfhttp://hdl.handle.net/10362/145735eng2306-5354PURE: 46064092https://doi.org/10.3390/bioengineering9080362info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-05-22T18:06:52Zoai:run.unl.pt:10362/145735Portal AgregadorONGhttps://www.rcaap.pt/oai/openairemluisa.alvim@gmail.comopendoar:71602024-05-22T18:06:52Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Impact of a Pretreatment Step on the Acidogenic Fermentation of Spent Coffee Grounds
title Impact of a Pretreatment Step on the Acidogenic Fermentation of Spent Coffee Grounds
spellingShingle Impact of a Pretreatment Step on the Acidogenic Fermentation of Spent Coffee Grounds
Pereira, Joana
title_short Impact of a Pretreatment Step on the Acidogenic Fermentation of Spent Coffee Grounds
title_full Impact of a Pretreatment Step on the Acidogenic Fermentation of Spent Coffee Grounds
title_fullStr Impact of a Pretreatment Step on the Acidogenic Fermentation of Spent Coffee Grounds
title_full_unstemmed Impact of a Pretreatment Step on the Acidogenic Fermentation of Spent Coffee Grounds
title_sort Impact of a Pretreatment Step on the Acidogenic Fermentation of Spent Coffee Grounds
author Pereira, Joana
author_facet Pereira, Joana
Melo, Marcelo M. R. de
Silva, Carlos M.
Lemos, Paulo C.
Serafim, Luísa S.
author_role author
author2 Melo, Marcelo M. R. de
Silva, Carlos M.
Lemos, Paulo C.
Serafim, Luísa S.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv DQ - Departamento de Química
LAQV@REQUIMTE
RUN
dc.contributor.author.fl_str_mv Pereira, Joana
Melo, Marcelo M. R. de
Silva, Carlos M.
Lemos, Paulo C.
Serafim, Luísa S.
description This 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.
publishDate 2022
dc.date.none.fl_str_mv 2022-11-23T22:25:17Z
2022-08-03
2022-08-03T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10362/145735
url http://hdl.handle.net/10362/145735
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 2306-5354
PURE: 46064092
https://doi.org/10.3390/bioengineering9080362
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 15
application/pdf
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv mluisa.alvim@gmail.com
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