Selection of the solvent and extraction conditions for maximum recovery of antioxidant phenolic compounds from coffee silverskin
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , |
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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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 |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799132232667889664 |