Selection of the solvent and extraction conditions for maximum recovery of antioxidant phenolic compounds from coffee silverskin

Detalhes bibliográficos
Autor(a) principal: Ballesteros, Lina F.
Data de Publicação: 2014
Outros Autores: Teixeira, J. A., Mussatto, Solange I.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/31999
Resumo: The extraction of antioxidant phenolic compounds from coffee silverskin (CS) was studied. Firstly, the effect of different solvents (methanol, ethanol, acetone, and distilled water) on the production of antioxidant extracts was evaluated. All the extracts showed antioxidant activity (FRAP and DPPH assays), but those obtained with methanol and ethanol had significantly higher (p < 0.05) DPPH inhibition than the remaining ones. Due to the lower toxicity, ethanol was selected as extraction solvent, and further experiments were performed in order to define the solvent concentration, solvent/solid ratio, and time to maximize the extraction results. The best condition to produce an extract with high content of phenolic compounds (13 mg gallic acid equivalents/g CS) and antioxidant activity [DPPH = 18.24 μmol Trolox equivalents/g CS and FRAP = 0.83 mmol Fe(II)/g CS] was achieved when using 60 % ethanol in a ratio of 35 ml/g CS, during 30 min at 60–65 °C.
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spelling Selection of the solvent and extraction conditions for maximum recovery of antioxidant phenolic compounds from coffee silverskinCoffee silverskinSolventExtractionPhenolic compoundsAntioxidant activityScience & TechnologyThe extraction of antioxidant phenolic compounds from coffee silverskin (CS) was studied. Firstly, the effect of different solvents (methanol, ethanol, acetone, and distilled water) on the production of antioxidant extracts was evaluated. All the extracts showed antioxidant activity (FRAP and DPPH assays), but those obtained with methanol and ethanol had significantly higher (p < 0.05) DPPH inhibition than the remaining ones. Due to the lower toxicity, ethanol was selected as extraction solvent, and further experiments were performed in order to define the solvent concentration, solvent/solid ratio, and time to maximize the extraction results. The best condition to produce an extract with high content of phenolic compounds (13 mg gallic acid equivalents/g CS) and antioxidant activity [DPPH = 18.24 μmol Trolox equivalents/g CS and FRAP = 0.83 mmol Fe(II)/g CS] was achieved when using 60 % ethanol in a ratio of 35 ml/g CS, during 30 min at 60–65 °C.This work was supported by the Portuguese Foundation for Science and Technology (FCT). The authors gratefully acknowledge Teresa Conde, student of Biological Engineering, for the help and interest in this work.SpringerUniversidade do MinhoBallesteros, Lina F.Teixeira, J. A.Mussatto, Solange I.20142014-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/31999engFood and Bioprocess Technology, 7(5), 1322-1332, 20141935-51301935-514910.1007/s11947-013-1115-7info: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:RCAAP2023-07-21T11:57:47Zoai:repositorium.sdum.uminho.pt:1822/31999Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T18:47:28.309518Repositório 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 Selection of the solvent and extraction conditions for maximum recovery of antioxidant phenolic compounds from coffee silverskin
title Selection of the solvent and extraction conditions for maximum recovery of antioxidant phenolic compounds from coffee silverskin
spellingShingle Selection of the solvent and extraction conditions for maximum recovery of antioxidant phenolic compounds from coffee silverskin
Ballesteros, Lina F.
Coffee silverskin
Solvent
Extraction
Phenolic compounds
Antioxidant activity
Science & Technology
title_short Selection of the solvent and extraction conditions for maximum recovery of antioxidant phenolic compounds from coffee silverskin
title_full Selection of the solvent and extraction conditions for maximum recovery of antioxidant phenolic compounds from coffee silverskin
title_fullStr Selection of the solvent and extraction conditions for maximum recovery of antioxidant phenolic compounds from coffee silverskin
title_full_unstemmed Selection of the solvent and extraction conditions for maximum recovery of antioxidant phenolic compounds from coffee silverskin
title_sort Selection of the solvent and extraction conditions for maximum recovery of antioxidant phenolic compounds from coffee silverskin
author Ballesteros, Lina F.
author_facet Ballesteros, Lina F.
Teixeira, J. A.
Mussatto, Solange I.
author_role author
author2 Teixeira, J. A.
Mussatto, Solange I.
author2_role author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Ballesteros, Lina F.
Teixeira, J. A.
Mussatto, Solange I.
dc.subject.por.fl_str_mv Coffee silverskin
Solvent
Extraction
Phenolic compounds
Antioxidant activity
Science & Technology
topic Coffee silverskin
Solvent
Extraction
Phenolic compounds
Antioxidant activity
Science & Technology
description The extraction of antioxidant phenolic compounds from coffee silverskin (CS) was studied. Firstly, the effect of different solvents (methanol, ethanol, acetone, and distilled water) on the production of antioxidant extracts was evaluated. All the extracts showed antioxidant activity (FRAP and DPPH assays), but those obtained with methanol and ethanol had significantly higher (p < 0.05) DPPH inhibition than the remaining ones. Due to the lower toxicity, ethanol was selected as extraction solvent, and further experiments were performed in order to define the solvent concentration, solvent/solid ratio, and time to maximize the extraction results. The best condition to produce an extract with high content of phenolic compounds (13 mg gallic acid equivalents/g CS) and antioxidant activity [DPPH = 18.24 μmol Trolox equivalents/g CS and FRAP = 0.83 mmol Fe(II)/g CS] was achieved when using 60 % ethanol in a ratio of 35 ml/g CS, during 30 min at 60–65 °C.
publishDate 2014
dc.date.none.fl_str_mv 2014
2014-01-01T00:00:00Z
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/1822/31999
url http://hdl.handle.net/1822/31999
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Food and Bioprocess Technology, 7(5), 1322-1332, 2014
1935-5130
1935-5149
10.1007/s11947-013-1115-7
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
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
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