Is gamma radiation suitable to preserve phenolic compounds and to decontaminate mycotoxins in aromatic plants? A case-study with Aloysia citrodora Paláu

Detalhes bibliográficos
Autor(a) principal: Pereira, Eliana
Data de Publicação: 2017
Outros Autores: Barros, Lillian, Antonio, Amilcar L., Cabo Verde, Sandra, Santos-Buelga, Celestino, Ferreira, Isabel C.F.R., Rodrigues, Paula
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10198/15305
Resumo: This study aimed to determine the effect of gamma radiation on the preservation of phenolic compounds and on decontamination of dry herbs in terms of ochratoxin A (OTA) and aflatoxin B1 (AFB1), using Aloysia citrodora Paláu as a case study. For this purpose, artificially contaminated dry leaves were submitted to gamma radiation at different doses (1, 5, and 10 kGy; at dose rate of 1.7 kGy/h). Phenolic compounds were analysed by HPLC-DAD-ESI/MS and mycotoxin levels were determined by HPLC-fluorescence. Eleven phenolic compounds were identified in the samples and despite the apparent degradation of some compounds (namely verbasoside), 1 and 10 kGy doses point to a preservation of the majority of the compounds. The mean mycotoxin reduction varied between 5.3% and 9.6% for OTA and from 4.9% to 5.2% for AFB1. It was not observed a significant effect of the irradiation treatments on mycotoxin levels, and a slight degradation of the phenolic compounds in the irradiated samples was observed.
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spelling Is gamma radiation suitable to preserve phenolic compounds and to decontaminate mycotoxins in aromatic plants? A case-study with Aloysia citrodora PaláuAflatoxin b1ChromatographyGamma radiationHerbsOchratoxin APhenolic compoundsThis study aimed to determine the effect of gamma radiation on the preservation of phenolic compounds and on decontamination of dry herbs in terms of ochratoxin A (OTA) and aflatoxin B1 (AFB1), using Aloysia citrodora Paláu as a case study. For this purpose, artificially contaminated dry leaves were submitted to gamma radiation at different doses (1, 5, and 10 kGy; at dose rate of 1.7 kGy/h). Phenolic compounds were analysed by HPLC-DAD-ESI/MS and mycotoxin levels were determined by HPLC-fluorescence. Eleven phenolic compounds were identified in the samples and despite the apparent degradation of some compounds (namely verbasoside), 1 and 10 kGy doses point to a preservation of the majority of the compounds. The mean mycotoxin reduction varied between 5.3% and 9.6% for OTA and from 4.9% to 5.2% for AFB1. It was not observed a significant effect of the irradiation treatments on mycotoxin levels, and a slight degradation of the phenolic compounds in the irradiated samples was observed.The authors are grateful to Ministry of Agriculture, Portugal (Project AROMAP— PRODER/FEADER/EU), for financial support of the work and E. Pereira grant. The authors are grateful to the Foundation for Science and Technology (FCT, Portugal) for financial support to CIMO (Pest-OE/AGR/UI0690/2015) and L. Barros grant (SFRH/BPD/107855/2015). Also, to POCI-01-0145-FEDER- 006984 (LA LSRE-LCM), funded by FEDER, through POCI-COMPETE2020 and FCT. C2TN/IST are also gratefully to FCT for financial support through the RECI/AAG-TEC/0400/2012 and UID/Multi/04349/2013 projects. The authors are also grateful to “MaisErvas—Aromáticas e Medicinais” for samples providing. The GIP-USAL is financially supported by the Spanish Government through the project AGL2015-64522-C2-2-R.Biblioteca Digital do IPBPereira, ElianaBarros, LillianAntonio, Amilcar L.Cabo Verde, SandraSantos-Buelga, CelestinoFerreira, Isabel C.F.R.Rodrigues, Paula2018-01-25T10:00:00Z20172017-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10198/15305engPereira, Eliana; Barros, Lillian; Antonio, Amilcar L.; Verde, Sandra Cabo; Santos-Buelga, Celestino; Ferreira, Isabel C.F.R.; Rodrigues, Paula (2017). Is gamma radiation suitable to preserve phenolic compounds and to decontaminate mycotoxins in aromatic plants? A case-study with aloysia citrodora paláu. Molecules. ISSN 1420-3049. 221420-304910.3390/molecules22030347info: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:RCAAP2023-11-21T10:35:48Zoai:bibliotecadigital.ipb.pt:10198/15305Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T23:04:55.823034Repositório 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 Is gamma radiation suitable to preserve phenolic compounds and to decontaminate mycotoxins in aromatic plants? A case-study with Aloysia citrodora Paláu
title Is gamma radiation suitable to preserve phenolic compounds and to decontaminate mycotoxins in aromatic plants? A case-study with Aloysia citrodora Paláu
spellingShingle Is gamma radiation suitable to preserve phenolic compounds and to decontaminate mycotoxins in aromatic plants? A case-study with Aloysia citrodora Paláu
Pereira, Eliana
Aflatoxin b1
Chromatography
Gamma radiation
Herbs
Ochratoxin A
Phenolic compounds
title_short Is gamma radiation suitable to preserve phenolic compounds and to decontaminate mycotoxins in aromatic plants? A case-study with Aloysia citrodora Paláu
title_full Is gamma radiation suitable to preserve phenolic compounds and to decontaminate mycotoxins in aromatic plants? A case-study with Aloysia citrodora Paláu
title_fullStr Is gamma radiation suitable to preserve phenolic compounds and to decontaminate mycotoxins in aromatic plants? A case-study with Aloysia citrodora Paláu
title_full_unstemmed Is gamma radiation suitable to preserve phenolic compounds and to decontaminate mycotoxins in aromatic plants? A case-study with Aloysia citrodora Paláu
title_sort Is gamma radiation suitable to preserve phenolic compounds and to decontaminate mycotoxins in aromatic plants? A case-study with Aloysia citrodora Paláu
author Pereira, Eliana
author_facet Pereira, Eliana
Barros, Lillian
Antonio, Amilcar L.
Cabo Verde, Sandra
Santos-Buelga, Celestino
Ferreira, Isabel C.F.R.
Rodrigues, Paula
author_role author
author2 Barros, Lillian
Antonio, Amilcar L.
Cabo Verde, Sandra
Santos-Buelga, Celestino
Ferreira, Isabel C.F.R.
Rodrigues, Paula
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Biblioteca Digital do IPB
dc.contributor.author.fl_str_mv Pereira, Eliana
Barros, Lillian
Antonio, Amilcar L.
Cabo Verde, Sandra
Santos-Buelga, Celestino
Ferreira, Isabel C.F.R.
Rodrigues, Paula
dc.subject.por.fl_str_mv Aflatoxin b1
Chromatography
Gamma radiation
Herbs
Ochratoxin A
Phenolic compounds
topic Aflatoxin b1
Chromatography
Gamma radiation
Herbs
Ochratoxin A
Phenolic compounds
description This study aimed to determine the effect of gamma radiation on the preservation of phenolic compounds and on decontamination of dry herbs in terms of ochratoxin A (OTA) and aflatoxin B1 (AFB1), using Aloysia citrodora Paláu as a case study. For this purpose, artificially contaminated dry leaves were submitted to gamma radiation at different doses (1, 5, and 10 kGy; at dose rate of 1.7 kGy/h). Phenolic compounds were analysed by HPLC-DAD-ESI/MS and mycotoxin levels were determined by HPLC-fluorescence. Eleven phenolic compounds were identified in the samples and despite the apparent degradation of some compounds (namely verbasoside), 1 and 10 kGy doses point to a preservation of the majority of the compounds. The mean mycotoxin reduction varied between 5.3% and 9.6% for OTA and from 4.9% to 5.2% for AFB1. It was not observed a significant effect of the irradiation treatments on mycotoxin levels, and a slight degradation of the phenolic compounds in the irradiated samples was observed.
publishDate 2017
dc.date.none.fl_str_mv 2017
2017-01-01T00:00:00Z
2018-01-25T10:00:00Z
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/10198/15305
url http://hdl.handle.net/10198/15305
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Pereira, Eliana; Barros, Lillian; Antonio, Amilcar L.; Verde, Sandra Cabo; Santos-Buelga, Celestino; Ferreira, Isabel C.F.R.; Rodrigues, Paula (2017). Is gamma radiation suitable to preserve phenolic compounds and to decontaminate mycotoxins in aromatic plants? A case-study with aloysia citrodora paláu. Molecules. ISSN 1420-3049. 22
1420-3049
10.3390/molecules22030347
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.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
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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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