Control of antioxidant efficiency of chlorogenates in emulsions: modulation of antioxidant interfacial concentrations
Autor(a) principal: | |
---|---|
Data de Publicação: | 2019 |
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/1822/72833 |
Resumo: | BACKGROUND Controlling the interfacial concentrations of antioxidants (AOs) in oil-in-water emulsions can be regarded as a unique approach for increasing the efficiency of AOs in inhibiting the oxidation of lipids. Classical methods to determine the AO distribution in binary systems cannot be employed and their distribution needs to be assessed in the intact emulsion. RESULTS We have employed a well-established kinetic method to determine the distribution of a homologous series of AOs derived of chlorogenic acid in olive oil-in-water emulsions and analyse the effects of AO hydrophobicity on their distributions and their efficiencies. Results indicate that variations in the efficiency of chlorogenates in emulsions are due to differences in their interfacial concentrations. Their interfacial concentrations AO(I) were much higher (20- to 150-fold) than their stoichiometric concentrations. On the other hand, their concentrations in the oil region were 1.5- to 0.1-fold. Results also show the complex effect of the oil-to-water ratio employed in the preparation of the emulsions on the (AO(I)) values. CONCLUSION Results highlight the key role of the interfacial region and of its composition (interfacial AO molarity, emulsifier concentration, oil-to-water ratio) in interpreting the efficiency of AOs in inhibiting lipid oxidation in emulsions. Thus, a careful modulation of these parameters is necessary to ensure optimum AO efficiency. (c) 2019 Society of Chemical Industry |
id |
RCAP_55286c7200031eaa8c4ac2d6c5a6ebc5 |
---|---|
oai_identifier_str |
oai:repositorium.sdum.uminho.pt:1822/72833 |
network_acronym_str |
RCAP |
network_name_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository_id_str |
7160 |
spelling |
Control of antioxidant efficiency of chlorogenates in emulsions: modulation of antioxidant interfacial concentrationsAntioxidant distributionAntioxidant efficiencyCut-off effectChlorogenic acidPseudophase modelEmulsionsCiências Naturais::Ciências QuímicasScience & TechnologyBACKGROUND Controlling the interfacial concentrations of antioxidants (AOs) in oil-in-water emulsions can be regarded as a unique approach for increasing the efficiency of AOs in inhibiting the oxidation of lipids. Classical methods to determine the AO distribution in binary systems cannot be employed and their distribution needs to be assessed in the intact emulsion. RESULTS We have employed a well-established kinetic method to determine the distribution of a homologous series of AOs derived of chlorogenic acid in olive oil-in-water emulsions and analyse the effects of AO hydrophobicity on their distributions and their efficiencies. Results indicate that variations in the efficiency of chlorogenates in emulsions are due to differences in their interfacial concentrations. Their interfacial concentrations AO(I) were much higher (20- to 150-fold) than their stoichiometric concentrations. On the other hand, their concentrations in the oil region were 1.5- to 0.1-fold. Results also show the complex effect of the oil-to-water ratio employed in the preparation of the emulsions on the (AO(I)) values. CONCLUSION Results highlight the key role of the interfacial region and of its composition (interfacial AO molarity, emulsifier concentration, oil-to-water ratio) in interpreting the efficiency of AOs in inhibiting lipid oxidation in emulsions. Thus, a careful modulation of these parameters is necessary to ensure optimum AO efficiency. (c) 2019 Society of Chemical IndustryFinancial support of the following institutions is acknowledged: FEDER (COMPETE) and FCT - Fundação para a Ciência e a Tecnologia (UID/QUI/50006/2013 - POCI-01-0145-FEDER-007265 and UID/QUI/00686/2016), Xunta de Galicia (10TAL314003PR and Programa de axudas a etapa posdoutoral), Ministerio de Educacion y Ciencia (CTQ2006-13969-BQU) and the Universities of Vigo and Porto. SL-B thanks Xunta de Galicia for a postdoctoral grant (POS-B/2016/012) and MC thanks FCT for the doctoral grant (SFRH/BD/100889/2014).WileyUniversidade do MinhoMeireles, MafaldaLosada-Barreiro, SoniaCosta, MarlenePaiva-Martins, FátimaBravo-Diaz, CarlosMonteiro, Luís S.20192019-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/72833engMeireles, M., Losada‐Barreiro, S., Costa, M., Paiva‐Martins, F., Bravo‐Díaz, C., & Monteiro, L. S. (2019). Control of antioxidant efficiency of chlorogenates in emulsions: Modulation of antioxidant interfacial concentrations. Journal of the Science of Food and Agriculture, 99(8), 3917-3925.0022-51421097-001010.1002/jsfa.961530697750https://onlinelibrary.wiley.com/doi/full/10.1002/jsfa.9615info: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:RCAAP2023-07-21T11:53:57Zoai:repositorium.sdum.uminho.pt:1822/72833Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T18:43:24.789834Repositório 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 |
Control of antioxidant efficiency of chlorogenates in emulsions: modulation of antioxidant interfacial concentrations |
title |
Control of antioxidant efficiency of chlorogenates in emulsions: modulation of antioxidant interfacial concentrations |
spellingShingle |
Control of antioxidant efficiency of chlorogenates in emulsions: modulation of antioxidant interfacial concentrations Meireles, Mafalda Antioxidant distribution Antioxidant efficiency Cut-off effect Chlorogenic acid Pseudophase model Emulsions Ciências Naturais::Ciências Químicas Science & Technology |
title_short |
Control of antioxidant efficiency of chlorogenates in emulsions: modulation of antioxidant interfacial concentrations |
title_full |
Control of antioxidant efficiency of chlorogenates in emulsions: modulation of antioxidant interfacial concentrations |
title_fullStr |
Control of antioxidant efficiency of chlorogenates in emulsions: modulation of antioxidant interfacial concentrations |
title_full_unstemmed |
Control of antioxidant efficiency of chlorogenates in emulsions: modulation of antioxidant interfacial concentrations |
title_sort |
Control of antioxidant efficiency of chlorogenates in emulsions: modulation of antioxidant interfacial concentrations |
author |
Meireles, Mafalda |
author_facet |
Meireles, Mafalda Losada-Barreiro, Sonia Costa, Marlene Paiva-Martins, Fátima Bravo-Diaz, Carlos Monteiro, Luís S. |
author_role |
author |
author2 |
Losada-Barreiro, Sonia Costa, Marlene Paiva-Martins, Fátima Bravo-Diaz, Carlos Monteiro, Luís S. |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Meireles, Mafalda Losada-Barreiro, Sonia Costa, Marlene Paiva-Martins, Fátima Bravo-Diaz, Carlos Monteiro, Luís S. |
dc.subject.por.fl_str_mv |
Antioxidant distribution Antioxidant efficiency Cut-off effect Chlorogenic acid Pseudophase model Emulsions Ciências Naturais::Ciências Químicas Science & Technology |
topic |
Antioxidant distribution Antioxidant efficiency Cut-off effect Chlorogenic acid Pseudophase model Emulsions Ciências Naturais::Ciências Químicas Science & Technology |
description |
BACKGROUND Controlling the interfacial concentrations of antioxidants (AOs) in oil-in-water emulsions can be regarded as a unique approach for increasing the efficiency of AOs in inhibiting the oxidation of lipids. Classical methods to determine the AO distribution in binary systems cannot be employed and their distribution needs to be assessed in the intact emulsion. RESULTS We have employed a well-established kinetic method to determine the distribution of a homologous series of AOs derived of chlorogenic acid in olive oil-in-water emulsions and analyse the effects of AO hydrophobicity on their distributions and their efficiencies. Results indicate that variations in the efficiency of chlorogenates in emulsions are due to differences in their interfacial concentrations. Their interfacial concentrations AO(I) were much higher (20- to 150-fold) than their stoichiometric concentrations. On the other hand, their concentrations in the oil region were 1.5- to 0.1-fold. Results also show the complex effect of the oil-to-water ratio employed in the preparation of the emulsions on the (AO(I)) values. CONCLUSION Results highlight the key role of the interfacial region and of its composition (interfacial AO molarity, emulsifier concentration, oil-to-water ratio) in interpreting the efficiency of AOs in inhibiting lipid oxidation in emulsions. Thus, a careful modulation of these parameters is necessary to ensure optimum AO efficiency. (c) 2019 Society of Chemical Industry |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019 2019-01-01T00:00:00Z |
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/1822/72833 |
url |
http://hdl.handle.net/1822/72833 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Meireles, M., Losada‐Barreiro, S., Costa, M., Paiva‐Martins, F., Bravo‐Díaz, C., & Monteiro, L. S. (2019). Control of antioxidant efficiency of chlorogenates in emulsions: Modulation of antioxidant interfacial concentrations. Journal of the Science of Food and Agriculture, 99(8), 3917-3925. 0022-5142 1097-0010 10.1002/jsfa.9615 30697750 https://onlinelibrary.wiley.com/doi/full/10.1002/jsfa.9615 |
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 |
Wiley |
publisher.none.fl_str_mv |
Wiley |
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 |
|
_version_ |
1799132180248526848 |