Potential of essential oils for protection of grains contaminated by aflatoxin produced by Aspergillus flavus
Identifieur interne : 000958 ( Main/Merge ); précédent : 000957; suivant : 000959Potential of essential oils for protection of grains contaminated by aflatoxin produced by Aspergillus flavus
Auteurs : Renata H. Esper [Brésil] ; Edlayne Gonçalez [Brésil] ; Marcia O. M. Marques [Brésil] ; Roberto C. Felicio [Brésil] ; Joana D. Felicio [Brésil]Source :
- Frontiers in Microbiology [ 1664-302X ] ; 2014.
Abstract
Aflatoxin B1 (AFB1) is a highly toxic and carcinogenic metabolite produced by
Url:
DOI: 10.3389/fmicb.2014.00269
PubMed: 24926289
PubMed Central: 4044670
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Potential of essential oils for protection of grains contaminated by aflatoxin produced by <italic>Aspergillus flavus</italic></title><author><name sortKey="Esper, Renata H" sort="Esper, Renata H" uniqKey="Esper R" first="Renata H." last="Esper">Renata H. Esper</name><affiliation wicri:level="1"><nlm:aff id="aff1"><institution>Centro de Pesquisa e Desenvolvimento em Sanidade Animal, Instituto Biológico</institution><country>São Paulo, Brazil</country></nlm:aff><country xml:lang="fr">Brésil</country><wicri:regionArea></wicri:regionArea></affiliation></author><author><name sortKey="Goncalez, Edlayne" sort="Goncalez, Edlayne" uniqKey="Goncalez E" first="Edlayne" last="Gonçalez">Edlayne Gonçalez</name><affiliation wicri:level="1"><nlm:aff id="aff1"><institution>Centro de Pesquisa e Desenvolvimento em Sanidade Animal, Instituto Biológico</institution><country>São Paulo, Brazil</country></nlm:aff><country xml:lang="fr">Brésil</country><wicri:regionArea></wicri:regionArea></affiliation></author><author><name sortKey="Marques, Marcia O M" sort="Marques, Marcia O M" uniqKey="Marques M" first="Marcia O. M." last="Marques">Marcia O. M. Marques</name><affiliation wicri:level="1"><nlm:aff id="aff2"><institution>Centro de Pesquisa e Desenvolvimento de Recursos Genéticos Vegetais, Instituto Agronômico</institution><country>Campinas, Brazil</country></nlm:aff><country xml:lang="fr">Brésil</country><wicri:regionArea></wicri:regionArea></affiliation></author><author><name sortKey="Felicio, Roberto C" sort="Felicio, Roberto C" uniqKey="Felicio R" first="Roberto C." last="Felicio">Roberto C. Felicio</name><affiliation wicri:level="1"><nlm:aff id="aff3"><institution>Departamento de Ciências Exatas e Tecnológicas, Universidade Estadual de Santa Cruz</institution><country>Ilhéus, Brazil</country></nlm:aff><country xml:lang="fr">Brésil</country><wicri:regionArea></wicri:regionArea></affiliation></author><author><name sortKey="Felicio, Joana D" sort="Felicio, Joana D" uniqKey="Felicio J" first="Joana D." last="Felicio">Joana D. Felicio</name><affiliation wicri:level="1"><nlm:aff id="aff1"><institution>Centro de Pesquisa e Desenvolvimento em Sanidade Animal, Instituto Biológico</institution><country>São Paulo, Brazil</country></nlm:aff><country xml:lang="fr">Brésil</country><wicri:regionArea></wicri:regionArea></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">24926289</idno><idno type="pmc">4044670</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4044670</idno><idno type="RBID">PMC:4044670</idno><idno type="doi">10.3389/fmicb.2014.00269</idno><date when="2014">2014</date><idno type="wicri:Area/Pmc/Corpus">000F10</idno><idno type="wicri:Area/Pmc/Curation">000F09</idno><idno type="wicri:Area/Pmc/Checkpoint">000732</idno><idno type="wicri:Area/Ncbi/Merge">001722</idno><idno type="wicri:Area/Ncbi/Curation">001722</idno><idno type="wicri:Area/Ncbi/Checkpoint">001722</idno><idno type="wicri:Area/Main/Merge">000958</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Potential of essential oils for protection of grains contaminated by aflatoxin produced by <italic>Aspergillus flavus</italic></title><author><name sortKey="Esper, Renata H" sort="Esper, Renata H" uniqKey="Esper R" first="Renata H." last="Esper">Renata H. Esper</name><affiliation wicri:level="1"><nlm:aff id="aff1"><institution>Centro de Pesquisa e Desenvolvimento em Sanidade Animal, Instituto Biológico</institution><country>São Paulo, Brazil</country></nlm:aff><country xml:lang="fr">Brésil</country><wicri:regionArea></wicri:regionArea></affiliation></author><author><name sortKey="Goncalez, Edlayne" sort="Goncalez, Edlayne" uniqKey="Goncalez E" first="Edlayne" last="Gonçalez">Edlayne Gonçalez</name><affiliation wicri:level="1"><nlm:aff id="aff1"><institution>Centro de Pesquisa e Desenvolvimento em Sanidade Animal, Instituto Biológico</institution><country>São Paulo, Brazil</country></nlm:aff><country xml:lang="fr">Brésil</country><wicri:regionArea></wicri:regionArea></affiliation></author><author><name sortKey="Marques, Marcia O M" sort="Marques, Marcia O M" uniqKey="Marques M" first="Marcia O. M." last="Marques">Marcia O. M. Marques</name><affiliation wicri:level="1"><nlm:aff id="aff2"><institution>Centro de Pesquisa e Desenvolvimento de Recursos Genéticos Vegetais, Instituto Agronômico</institution><country>Campinas, Brazil</country></nlm:aff><country xml:lang="fr">Brésil</country><wicri:regionArea></wicri:regionArea></affiliation></author><author><name sortKey="Felicio, Roberto C" sort="Felicio, Roberto C" uniqKey="Felicio R" first="Roberto C." last="Felicio">Roberto C. Felicio</name><affiliation wicri:level="1"><nlm:aff id="aff3"><institution>Departamento de Ciências Exatas e Tecnológicas, Universidade Estadual de Santa Cruz</institution><country>Ilhéus, Brazil</country></nlm:aff><country xml:lang="fr">Brésil</country><wicri:regionArea></wicri:regionArea></affiliation></author><author><name sortKey="Felicio, Joana D" sort="Felicio, Joana D" uniqKey="Felicio J" first="Joana D." last="Felicio">Joana D. Felicio</name><affiliation wicri:level="1"><nlm:aff id="aff1"><institution>Centro de Pesquisa e Desenvolvimento em Sanidade Animal, Instituto Biológico</institution><country>São Paulo, Brazil</country></nlm:aff><country xml:lang="fr">Brésil</country><wicri:regionArea></wicri:regionArea></affiliation></author></analytic><series><title level="j">Frontiers in Microbiology</title><idno type="eISSN">1664-302X</idno><imprint><date when="2014">2014</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p>Aflatoxin B<sub>1</sub> (AFB<sub>1</sub>) is a highly toxic and carcinogenic metabolite produced by <italic>Aspergillus</italic> species on food and agricultural commodities. Inhibitory effects of essential oils of <italic>Ageratum conyzoides</italic> (mentrasto) and <italic>Origanum vulgare</italic> (oregano) on the mycelial growth and aflatoxin B<sub>1</sub> production by <italic>Aspergillus flavus</italic> have been studied previously in culture medium. The aim of this study was to evaluate aflatoxin B<sub>1</sub> production by <italic>Aspergillus flavus</italic> in real food systems (corn and soybean) treated with <italic>Ageratum conyzoides</italic> (mentrasto) and <italic>Origanum vulgare</italic> (oregano) essential oils. Samples with 60 g of the grains were treated with different volumes of essential oils, 200, 100, 50, and 10 μL for oregano and 50, 30, 15, and 10 μL for mentrasto. Fungal growth was evaluated by disk diffusion method. Aflatoxin B<sub>1</sub> production was evaluated inoculating suspensions of <italic>A. flavus</italic> containing 1.3 × 10<sup>5</sup> spores/mL in 60 g of grains (corn and soybeans) after adjusting the water activity at 0.94. Aflatoxin was quantified by photodensitometry. Fungal growth and aflatoxin production were inhibited by essential oils, but the mentrasto oil was more effective in soybeans than that of oregano. On the other hand, in corn samples, the oregano essential oil was more effective than that of mentrasto. Chemical compositions of the essential oils were also investigated. The GC/MS oils analysis showed that the main component of mentrasto essential oil is precocene I and of the main component of oregano essential oil is 4-terpineol. The results indicate that both essential oils can become an alternative for the control of aflatoxins in corn and soybeans.</p></div></front><back><div1 type="bibliography"><listBibl><biblStruct><analytic><author><name sortKey="Adams, R P" uniqKey="Adams R">R. P. Adams</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Bluma, R" uniqKey="Bluma R">R. Bluma</name></author><author><name sortKey="Etcheverry, M" uniqKey="Etcheverry M">M. Etcheverry</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Bryden, W L" uniqKey="Bryden W">W. L. Bryden</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Castro, H G" uniqKey="Castro H">H. G. Castro</name></author><author><name sortKey="Oliveira, L O" uniqKey="Oliveira L">L. O. Oliveira</name></author><author><name sortKey="Barbosa, L C A" uniqKey="Barbosa L">L. C. A. Barbosa</name></author><author><name sortKey="Ferreira, F A" uniqKey="Ferreira F">F. A. 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