Determinação simultânea de micotoxinas em cereais
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Tipo de documento: | Tese |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações do UFSM |
Texto Completo: | http://repositorio.ufsm.br/handle/1/18966 |
Resumo: | Mycotoxins are secondary metabolites produced by filamentous fungi present in oat and wheat and several foodstuffs consumed worldwide. When contaminated food items are ingested, they may be toxic to humans and animals. Thus, this study aimed to apply a qualitative screening method and quantify the mycotoxins with and without current legislation present in oat and wheat samples in 2016 and 2017 and in purple maize in 2017. Four hundred and sixty-five samples of oat (91) and wheat (374) from the states of Rio Grande do Sul and Santa Catarina states and 63 samples of Peuvian purple maize from Peru were analyzed. The frequency of occurrence and concentration of the following mycotoxins were determined: alternariolmetileter (AME), alternariol (AOH), tentoxin, neosolaniol, nivalenol (NIV), wortmannin, deoxynivalenol (DON), 3-acetyl deoxynivalenol, 15-acetyl deoxynivalenol, zearalenone (ZEA), aflatoxin B1 (AFB1), aflatoxin B2, aflatoxin G1, aflatoxin G2, fumonisin B1, fumonisin B2, fumonisin B3, ochratoxin A, ochratoxin α, T-2 toxin, HT-2 toxin, fusarenon x, cyclopiazonic acid, gliotoxin, agroclavin and citreoviridin. Mean levels of mycotoxins within the standards of the Brazilian legislation were found, but some of the detected metabolites do not present specifications for the studied cereals. The main mycotoxins detected in oat were AME and AOH, with a frequency of occurrence of 100 and 98%, respectively. These were also the main mycotoxins found in wheat, followed by NIV, DON, ZEA and AFB1, depending on the year of sample collection. For purple maize no mycotoxins were found in the Brazilian legislation. All mycotoxins present in the legislation had levels below the limit of quantification. The main mycotoxins found in purple maize were also AME and AOH, with frequency of occurrence of 14.3 and 7.9%, respectively It may be concluded that mycotoxins without guidance levels were detected in both cereals and years. Moreover, a warning must be made regarding the contamination at high concentrations by mycotoxins which are regulated, in some cases exceeding the permitted levels. For wheat and oatmeal samples, it may be concluded that in both years and cereals mycotoxins not included in the legislation were detected, and a warning must be made for the contamination by mycotoxins that are regulated, in some cases above the permitted levels. This is the first survey to analyze emerging mycotoxins in oats, wheat and purple corn. |
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2019-11-19T15:00:30Z2019-11-19T15:00:30Z2019-02-28http://repositorio.ufsm.br/handle/1/18966Mycotoxins are secondary metabolites produced by filamentous fungi present in oat and wheat and several foodstuffs consumed worldwide. When contaminated food items are ingested, they may be toxic to humans and animals. Thus, this study aimed to apply a qualitative screening method and quantify the mycotoxins with and without current legislation present in oat and wheat samples in 2016 and 2017 and in purple maize in 2017. Four hundred and sixty-five samples of oat (91) and wheat (374) from the states of Rio Grande do Sul and Santa Catarina states and 63 samples of Peuvian purple maize from Peru were analyzed. The frequency of occurrence and concentration of the following mycotoxins were determined: alternariolmetileter (AME), alternariol (AOH), tentoxin, neosolaniol, nivalenol (NIV), wortmannin, deoxynivalenol (DON), 3-acetyl deoxynivalenol, 15-acetyl deoxynivalenol, zearalenone (ZEA), aflatoxin B1 (AFB1), aflatoxin B2, aflatoxin G1, aflatoxin G2, fumonisin B1, fumonisin B2, fumonisin B3, ochratoxin A, ochratoxin α, T-2 toxin, HT-2 toxin, fusarenon x, cyclopiazonic acid, gliotoxin, agroclavin and citreoviridin. Mean levels of mycotoxins within the standards of the Brazilian legislation were found, but some of the detected metabolites do not present specifications for the studied cereals. The main mycotoxins detected in oat were AME and AOH, with a frequency of occurrence of 100 and 98%, respectively. These were also the main mycotoxins found in wheat, followed by NIV, DON, ZEA and AFB1, depending on the year of sample collection. For purple maize no mycotoxins were found in the Brazilian legislation. All mycotoxins present in the legislation had levels below the limit of quantification. The main mycotoxins found in purple maize were also AME and AOH, with frequency of occurrence of 14.3 and 7.9%, respectively It may be concluded that mycotoxins without guidance levels were detected in both cereals and years. Moreover, a warning must be made regarding the contamination at high concentrations by mycotoxins which are regulated, in some cases exceeding the permitted levels. For wheat and oatmeal samples, it may be concluded that in both years and cereals mycotoxins not included in the legislation were detected, and a warning must be made for the contamination by mycotoxins that are regulated, in some cases above the permitted levels. This is the first survey to analyze emerging mycotoxins in oats, wheat and purple corn.Micotoxinas são metabólitos secundários produzidos por fungos filamentosos que podem estar presentes em inúmeros alimentos consumidos mundialmente. Quando alimentos contaminados são ingeridos por humanos ou animais podem ser considerados tóxicos. Diante disso, o objetivo do estudo foi aplicar um método quantitativo para as micotoxinas com e sem legislação vigente presentes em amostras de trigo e aveia em 2016 e 2017 e milho roxo em 2017. Foram analisadas 465 amostras, sendo 91 de aveia e 374 de trigo provenientes dos estados de Santa Catarina e Rio Grande do Sul e 63 amostras de milho roxo provenientes do Peru. Determinou-se a frequência de ocorrência e a concentração das micotoxinas alternariol (AOH), alternariolmetileter (AME), tentoxina, neosolaniol, nivalenol (NIV), vortmanina, 3-acetil deoxinivalenol, 15-acetil deoxinivalenol, deoxinivalenol (DON), zearalenona (ZEA), aflatoxina B1 (AB1), aflatoxina B2, aflatoxina G1, aflatoxina G2, fumonisina B1, fumonisina B2, fumonisina B3, ocratoxina A, ocratoxina α, toxina T2, toxina HT2, diacetoxiscirpenol, fusarenon-x, ácido ciclopiazônico, gliotoxina, agroclavina e citroviridina. Foram encontrados níveis médios de micotoxinas dentro dos padrões da legislação brasileira, porém alguns metabólitos detectados não apresentam especificações para os cereais estudados. As principais micotoxinas encontradas em aveia foram AME e AOH, com frequência de ocorrência de 100 e 98%, respectivamente. As mesmas micotoxinas foram as principais encontradas em trigo,, seguidas de NIV, DON, ZEA e AB1, dependendo do ano de coleta das amostras. No milho roxo não foram encontrados micotoxinas presentes na legislação brasileira. Todas as micotoxinas presentes na legislação apresentaram níveis abaixo do limite de quantificação. As principais micotoxinas encontradas em milho roxo foram AME e AOH, com frequência de ocorrência de 14,3 e 7,9%, respectivamente. Para as amostras de trigo e aveia conclui-se que em ambos os anos e cereais foram detectadas micotoxinas não incluídas na legislação, e alerta-se para a contaminação por micotoxinas que estão regulamentadas, em alguns casos acima dos níveis permitidos. A metodologia utilizada para determinação das micotoxinas foi cromatografia liquida de alta eficiência acoplada a espectrometria de massas. Esta é a primeira pesquisa de micotoxinas emergentes em aveia, trigo e milho roxo.porUniversidade Federal de Santa MariaCentro de Ciências RuraisPrograma de Pós-Graduação em Medicina VeterináriaUFSMBrasilMedicina VeterináriaAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessMicotoxinasCromatografia líquidaEspectrometria de massasAveiaTrigoMilho roxoMycotoxinLiquid chromatographyMass spectrometryOatsWheatPurple cornCNPQ::CIENCIAS AGRARIAS::MEDICINA VETERINARIADeterminação simultânea de micotoxinas em cereaisSimultaneous analysis of mycotoxins in cerealsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisMallmann, Carlos Augustohttp://lattes.cnpq.br/5193771213666058Oliveira, Maurício Schneiderhttp://lattes.cnpq.br/7488839969103001Nunes, Matheus Augusto Gonçalveshttp://lattes.cnpq.br/9318565589815487Dressler, Valderi Luizhttp://lattes.cnpq.br/4054740296547580Müller, Aline Lima Hermeshttp://lattes.cnpq.br/6859286861380431http://lattes.cnpq.br/3763182838861213Rossi, Natália Hoffmann500500000007600f8b7bb02-50a2-468a-91b2-0a75e5374e2fb4eed9cf-3610-4b3b-833b-273c7ae0f8c1c649e5db-abbc-4785-9f8b-dc149c7cfe6f83faeeac-e883-44bd-bf20-a9b146478365a9ee5e70-810a-4fbb-8a1f-0e0aaf8d83f3103848b9-23a7-4963-8a0c-549fd0b6144freponame:Biblioteca Digital de Teses e Dissertações do UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMCC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; 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dc.title.por.fl_str_mv |
Determinação simultânea de micotoxinas em cereais |
dc.title.alternative.eng.fl_str_mv |
Simultaneous analysis of mycotoxins in cereals |
title |
Determinação simultânea de micotoxinas em cereais |
spellingShingle |
Determinação simultânea de micotoxinas em cereais Rossi, Natália Hoffmann Micotoxinas Cromatografia líquida Espectrometria de massas Aveia Trigo Milho roxo Mycotoxin Liquid chromatography Mass spectrometry Oats Wheat Purple corn CNPQ::CIENCIAS AGRARIAS::MEDICINA VETERINARIA |
title_short |
Determinação simultânea de micotoxinas em cereais |
title_full |
Determinação simultânea de micotoxinas em cereais |
title_fullStr |
Determinação simultânea de micotoxinas em cereais |
title_full_unstemmed |
Determinação simultânea de micotoxinas em cereais |
title_sort |
Determinação simultânea de micotoxinas em cereais |
author |
Rossi, Natália Hoffmann |
author_facet |
Rossi, Natália Hoffmann |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Mallmann, Carlos Augusto |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/5193771213666058 |
dc.contributor.referee1.fl_str_mv |
Oliveira, Maurício Schneider |
dc.contributor.referee1Lattes.fl_str_mv |
http://lattes.cnpq.br/7488839969103001 |
dc.contributor.referee2.fl_str_mv |
Nunes, Matheus Augusto Gonçalves |
dc.contributor.referee2Lattes.fl_str_mv |
http://lattes.cnpq.br/9318565589815487 |
dc.contributor.referee3.fl_str_mv |
Dressler, Valderi Luiz |
dc.contributor.referee3Lattes.fl_str_mv |
http://lattes.cnpq.br/4054740296547580 |
dc.contributor.referee4.fl_str_mv |
Müller, Aline Lima Hermes |
dc.contributor.referee4Lattes.fl_str_mv |
http://lattes.cnpq.br/6859286861380431 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/3763182838861213 |
dc.contributor.author.fl_str_mv |
Rossi, Natália Hoffmann |
contributor_str_mv |
Mallmann, Carlos Augusto Oliveira, Maurício Schneider Nunes, Matheus Augusto Gonçalves Dressler, Valderi Luiz Müller, Aline Lima Hermes |
dc.subject.por.fl_str_mv |
Micotoxinas Cromatografia líquida Espectrometria de massas Aveia Trigo Milho roxo |
topic |
Micotoxinas Cromatografia líquida Espectrometria de massas Aveia Trigo Milho roxo Mycotoxin Liquid chromatography Mass spectrometry Oats Wheat Purple corn CNPQ::CIENCIAS AGRARIAS::MEDICINA VETERINARIA |
dc.subject.eng.fl_str_mv |
Mycotoxin Liquid chromatography Mass spectrometry Oats Wheat Purple corn |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS AGRARIAS::MEDICINA VETERINARIA |
description |
Mycotoxins are secondary metabolites produced by filamentous fungi present in oat and wheat and several foodstuffs consumed worldwide. When contaminated food items are ingested, they may be toxic to humans and animals. Thus, this study aimed to apply a qualitative screening method and quantify the mycotoxins with and without current legislation present in oat and wheat samples in 2016 and 2017 and in purple maize in 2017. Four hundred and sixty-five samples of oat (91) and wheat (374) from the states of Rio Grande do Sul and Santa Catarina states and 63 samples of Peuvian purple maize from Peru were analyzed. The frequency of occurrence and concentration of the following mycotoxins were determined: alternariolmetileter (AME), alternariol (AOH), tentoxin, neosolaniol, nivalenol (NIV), wortmannin, deoxynivalenol (DON), 3-acetyl deoxynivalenol, 15-acetyl deoxynivalenol, zearalenone (ZEA), aflatoxin B1 (AFB1), aflatoxin B2, aflatoxin G1, aflatoxin G2, fumonisin B1, fumonisin B2, fumonisin B3, ochratoxin A, ochratoxin α, T-2 toxin, HT-2 toxin, fusarenon x, cyclopiazonic acid, gliotoxin, agroclavin and citreoviridin. Mean levels of mycotoxins within the standards of the Brazilian legislation were found, but some of the detected metabolites do not present specifications for the studied cereals. The main mycotoxins detected in oat were AME and AOH, with a frequency of occurrence of 100 and 98%, respectively. These were also the main mycotoxins found in wheat, followed by NIV, DON, ZEA and AFB1, depending on the year of sample collection. For purple maize no mycotoxins were found in the Brazilian legislation. All mycotoxins present in the legislation had levels below the limit of quantification. The main mycotoxins found in purple maize were also AME and AOH, with frequency of occurrence of 14.3 and 7.9%, respectively It may be concluded that mycotoxins without guidance levels were detected in both cereals and years. Moreover, a warning must be made regarding the contamination at high concentrations by mycotoxins which are regulated, in some cases exceeding the permitted levels. For wheat and oatmeal samples, it may be concluded that in both years and cereals mycotoxins not included in the legislation were detected, and a warning must be made for the contamination by mycotoxins that are regulated, in some cases above the permitted levels. This is the first survey to analyze emerging mycotoxins in oats, wheat and purple corn. |
publishDate |
2019 |
dc.date.accessioned.fl_str_mv |
2019-11-19T15:00:30Z |
dc.date.available.fl_str_mv |
2019-11-19T15:00:30Z |
dc.date.issued.fl_str_mv |
2019-02-28 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
format |
doctoralThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://repositorio.ufsm.br/handle/1/18966 |
url |
http://repositorio.ufsm.br/handle/1/18966 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.cnpq.fl_str_mv |
500500000007 |
dc.relation.confidence.fl_str_mv |
600 |
dc.relation.authority.fl_str_mv |
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dc.rights.driver.fl_str_mv |
Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Maria Centro de Ciências Rurais |
dc.publisher.program.fl_str_mv |
Programa de Pós-Graduação em Medicina Veterinária |
dc.publisher.initials.fl_str_mv |
UFSM |
dc.publisher.country.fl_str_mv |
Brasil |
dc.publisher.department.fl_str_mv |
Medicina Veterinária |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria Centro de Ciências Rurais |
dc.source.none.fl_str_mv |
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Universidade Federal de Santa Maria (UFSM) |
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UFSM |
institution |
UFSM |
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