A QCAR model for predicting antioxidant activity of wild mushrooms
Autor(a) principal: | |
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Data de Publicação: | 2009 |
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/10198/2615 |
Resumo: | Wild mushrooms have been described as sources of natural antioxidants, particularly phenolic compounds. However, many other compounds present in wild mushrooms can also act as antioxidants (reducers), so whole extracts from a wide range of species need to be examined. To gain further knowledge in this area, the relationship between the antioxidant potential (scavenging effect and reducing power) and chemical composition of twenty three samples from seventeen Portuguese wild mushroom species was investigated. A wide range of analytical parameters reported by our research group (including ash, carbohydrates, proteins, fat, monounsaturated fatty acids, polyunsaturated fatty acids, saturated fatty acids, phenolics, flavonoids, ascorbic acid and -carotene) were studied and the data were analysed by partial least squares (PLS) regression analysis to allow correlation of all the parameters. Antioxidant activity correlated well with phenolic and flavonoid contents. A QCAR (Quantitative Composition-Activity Relationships) model was constructed, using the PLS method, and its robustness and predictability were verified by internal and external cross-validation methods. Finally, this model proved to be a useful tool in the prediction of mushrooms’ reducing power. |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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A QCAR model for predicting antioxidant activity of wild mushroomsWild mushroomsChemical compositionAntioxidant activityQCARPLSWild mushrooms have been described as sources of natural antioxidants, particularly phenolic compounds. However, many other compounds present in wild mushrooms can also act as antioxidants (reducers), so whole extracts from a wide range of species need to be examined. To gain further knowledge in this area, the relationship between the antioxidant potential (scavenging effect and reducing power) and chemical composition of twenty three samples from seventeen Portuguese wild mushroom species was investigated. A wide range of analytical parameters reported by our research group (including ash, carbohydrates, proteins, fat, monounsaturated fatty acids, polyunsaturated fatty acids, saturated fatty acids, phenolics, flavonoids, ascorbic acid and -carotene) were studied and the data were analysed by partial least squares (PLS) regression analysis to allow correlation of all the parameters. Antioxidant activity correlated well with phenolic and flavonoid contents. A QCAR (Quantitative Composition-Activity Relationships) model was constructed, using the PLS method, and its robustness and predictability were verified by internal and external cross-validation methods. Finally, this model proved to be a useful tool in the prediction of mushrooms’ reducing power.Taylor & FrancisBiblioteca Digital do IPBFroufe, Hugo J.C.Abreu, Rui M.V.Ferreira, Isabel C.F.R.2010-09-21T10:03:35Z20092009-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfapplication/pdfhttp://hdl.handle.net/10198/2615engFoufe, Hugo; Abreu, Rui M.V.; Ferreira, ICFR (2009). A QCAR model for predicting antioxidant activity of wild mushrooms. SAR and QSAR in Environmental Research. ISSN 1029-046X. 20:5-6. p. 579-5901029-046X10.1080/10629360903408423info: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:RCAAP2023-01-16T12:06:10ZPortal AgregadorONG |
dc.title.none.fl_str_mv |
A QCAR model for predicting antioxidant activity of wild mushrooms |
title |
A QCAR model for predicting antioxidant activity of wild mushrooms |
spellingShingle |
A QCAR model for predicting antioxidant activity of wild mushrooms Froufe, Hugo J.C. Wild mushrooms Chemical composition Antioxidant activity QCAR PLS |
title_short |
A QCAR model for predicting antioxidant activity of wild mushrooms |
title_full |
A QCAR model for predicting antioxidant activity of wild mushrooms |
title_fullStr |
A QCAR model for predicting antioxidant activity of wild mushrooms |
title_full_unstemmed |
A QCAR model for predicting antioxidant activity of wild mushrooms |
title_sort |
A QCAR model for predicting antioxidant activity of wild mushrooms |
author |
Froufe, Hugo J.C. |
author_facet |
Froufe, Hugo J.C. Abreu, Rui M.V. Ferreira, Isabel C.F.R. |
author_role |
author |
author2 |
Abreu, Rui M.V. Ferreira, Isabel C.F.R. |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Biblioteca Digital do IPB |
dc.contributor.author.fl_str_mv |
Froufe, Hugo J.C. Abreu, Rui M.V. Ferreira, Isabel C.F.R. |
dc.subject.por.fl_str_mv |
Wild mushrooms Chemical composition Antioxidant activity QCAR PLS |
topic |
Wild mushrooms Chemical composition Antioxidant activity QCAR PLS |
description |
Wild mushrooms have been described as sources of natural antioxidants, particularly phenolic compounds. However, many other compounds present in wild mushrooms can also act as antioxidants (reducers), so whole extracts from a wide range of species need to be examined. To gain further knowledge in this area, the relationship between the antioxidant potential (scavenging effect and reducing power) and chemical composition of twenty three samples from seventeen Portuguese wild mushroom species was investigated. A wide range of analytical parameters reported by our research group (including ash, carbohydrates, proteins, fat, monounsaturated fatty acids, polyunsaturated fatty acids, saturated fatty acids, phenolics, flavonoids, ascorbic acid and -carotene) were studied and the data were analysed by partial least squares (PLS) regression analysis to allow correlation of all the parameters. Antioxidant activity correlated well with phenolic and flavonoid contents. A QCAR (Quantitative Composition-Activity Relationships) model was constructed, using the PLS method, and its robustness and predictability were verified by internal and external cross-validation methods. Finally, this model proved to be a useful tool in the prediction of mushrooms’ reducing power. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009 2009-01-01T00:00:00Z 2010-09-21T10:03:35Z |
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/10198/2615 |
url |
http://hdl.handle.net/10198/2615 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Foufe, Hugo; Abreu, Rui M.V.; Ferreira, ICFR (2009). A QCAR model for predicting antioxidant activity of wild mushrooms. SAR and QSAR in Environmental Research. ISSN 1029-046X. 20:5-6. p. 579-590 1029-046X 10.1080/10629360903408423 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Taylor & Francis |
publisher.none.fl_str_mv |
Taylor & Francis |
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) |
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1777301800284585984 |