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 | Acesso ao texto completo restrito à biblioteca da Embrapa Solos. Para informações adicionais entre em contato com cnps.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
17/10/2016 |
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Data da última atualização: |
17/10/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ROCHA, D. A. M.; TORRES, J. P. M.; REICHEL, K.; NOVOTNY, E. H.; ESTRELLA, L. F.; MEDEIROS, R. O.; PEREIRA NETTO, A. D. |
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Afiliação: |
DAYSE A. M. ROCHA, UFF; JOÃO P. M. TORRES, UFRJ; KLAUS REICHEL, IPEXCo; ETELVINO HENRIQUE NOVOTNY, CNPS; LEONARDO F. ESTRELLA, UFRJ; REBECA O. MEDEIROS, UFRJ; ANNIBAL D. PEREIRA NETTO, UFF. |
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Título: |
Determination of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) in Brazilian cow milk. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Science of the Total Environment, v. 572, p. 177-184, Dec. 2016. |
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DOI: |
10.1016/j.scitotenv.2016.07.179 |
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Idioma: |
Inglês |
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Conteúdo: |
The determination of polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) in raw cow milks have never been reported in Brazil. Since the consumption of food of animal origin, including milk and dairy products, is the major source of human exposure to these compounds, this study aimed to establish the levels and profile of seven PCDDs and ten PCDFs in raw cow milk samples collected in eight Brazilian states which among the major milk producer states. Raw milk samples were collected in 34 different dairy cattle farms during the summer of 2013. All PCDD/Fs congeners were found at least in some of the 34 samples studied. The octa-chlorinated congeners (OCDD and OCDF) were ubiquitous and also present in high concentrations. The mean values of WHO-TEQ1998;2005 were respectively 1.66 and 1.36 pg TEQ g− 1 fat and samples taken in São Paulo showed the highest WHO-TEQ values (2.46 TEQ1998 g− 1 fat and 2.10 pg TEQ2005 g− 1 fat). Although all samples showed some contamination level, all values were below the limit established by European Union for total PCDD/Fs in cow milk (3 pg WHO-TEQ1998 g− 1 fat). Principal Component Analysis (PCA) showed that OCDD and OCDF were responsible for 73% and 20% of the total data variance, respectively and they presented an independent behavior, probably as a result of distinct origins. The use of TEQ as weights in the PCA, revealed the importance of the penta-chloro congeners and it was possible to identify sample distribution patterns probably associated with the main PeCDD and PeCDF. The importance of local sources to PCDD/Fs concentrations is still to be evaluated and determined. MenosThe determination of polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) in raw cow milks have never been reported in Brazil. Since the consumption of food of animal origin, including milk and dairy products, is the major source of human exposure to these compounds, this study aimed to establish the levels and profile of seven PCDDs and ten PCDFs in raw cow milk samples collected in eight Brazilian states which among the major milk producer states. Raw milk samples were collected in 34 different dairy cattle farms during the summer of 2013. All PCDD/Fs congeners were found at least in some of the 34 samples studied. The octa-chlorinated congeners (OCDD and OCDF) were ubiquitous and also present in high concentrations. The mean values of WHO-TEQ1998;2005 were respectively 1.66 and 1.36 pg TEQ g− 1 fat and samples taken in São Paulo showed the highest WHO-TEQ values (2.46 TEQ1998 g− 1 fat and 2.10 pg TEQ2005 g− 1 fat). Although all samples showed some contamination level, all values were below the limit established by European Union for total PCDD/Fs in cow milk (3 pg WHO-TEQ1998 g− 1 fat). Principal Component Analysis (PCA) showed that OCDD and OCDF were responsible for 73% and 20% of the total data variance, respectively and they presented an independent behavior, probably as a result of distinct origins. The use of TEQ as weights in the PCA, revealed the importance of the penta-chloro congeners and it was possible to i... Mostrar Tudo |
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Palavras-Chave: |
Contaminação de alimentos; Dibenzodioxinas policloradas; Dibenzofuranos; Leite de vaca cru; PCDD/Fs; Poluentes orgânicos persistentes. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02574naa a2200277 a 4500
001 2054729
005 2016-10-17
008 2016 bl uuuu u00u1 u #d
024 7 $a10.1016/j.scitotenv.2016.07.179$2DOI
100 1 $aROCHA, D. A. M.
245 $aDetermination of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) in Brazilian cow milk.$h[electronic resource]
260 $c2016
520 $aThe determination of polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) in raw cow milks have never been reported in Brazil. Since the consumption of food of animal origin, including milk and dairy products, is the major source of human exposure to these compounds, this study aimed to establish the levels and profile of seven PCDDs and ten PCDFs in raw cow milk samples collected in eight Brazilian states which among the major milk producer states. Raw milk samples were collected in 34 different dairy cattle farms during the summer of 2013. All PCDD/Fs congeners were found at least in some of the 34 samples studied. The octa-chlorinated congeners (OCDD and OCDF) were ubiquitous and also present in high concentrations. The mean values of WHO-TEQ1998;2005 were respectively 1.66 and 1.36 pg TEQ g− 1 fat and samples taken in São Paulo showed the highest WHO-TEQ values (2.46 TEQ1998 g− 1 fat and 2.10 pg TEQ2005 g− 1 fat). Although all samples showed some contamination level, all values were below the limit established by European Union for total PCDD/Fs in cow milk (3 pg WHO-TEQ1998 g− 1 fat). Principal Component Analysis (PCA) showed that OCDD and OCDF were responsible for 73% and 20% of the total data variance, respectively and they presented an independent behavior, probably as a result of distinct origins. The use of TEQ as weights in the PCA, revealed the importance of the penta-chloro congeners and it was possible to identify sample distribution patterns probably associated with the main PeCDD and PeCDF. The importance of local sources to PCDD/Fs concentrations is still to be evaluated and determined.
653 $aContaminação de alimentos
653 $aDibenzodioxinas policloradas
653 $aDibenzofuranos
653 $aLeite de vaca cru
653 $aPCDD/Fs
653 $aPoluentes orgânicos persistentes
700 1 $aTORRES, J. P. M.
700 1 $aREICHEL, K.
700 1 $aNOVOTNY, E. H.
700 1 $aESTRELLA, L. F.
700 1 $aMEDEIROS, R. O.
700 1 $aPEREIRA NETTO, A. D.
773 $tScience of the Total Environment$gv. 572, p. 177-184, Dec. 2016.
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Registro original: |
Embrapa Solos (CNPS) |
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Tipo/Formato |
Classificação |
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Registro |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
11/10/2017 |
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Data da última atualização: |
13/10/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 5 |
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Autoria: |
TEDESCO, F. G.; POTRICH, M.; BARBOSA, L. R.; LOZANO, E.; SILVA, M. da F. |
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Afiliação: |
Flavia Galvan Tedesco, Programa de Pós-Graduação em Agroecossistemas, UTFPR; Michele Potrich, Laboratório de Controle Biológico. Coordenação de Ciências Biológicas, UTFPR; LEONARDO RODRIGUES BARBOSA, CNPF; Everton Lozano, UTFPR; Matheus da Fonseca Silva, Engenheiro Florestal. |
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Título: |
Eficiência de produtos fitossanitários alternativos sobre adultos de Thaumastocoris peregrinus (Carpintero & Dellapé) (Hemiptera: Thaumastocoridae). |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Revista Científica Eletrônica de Engenharia Florestal, v. 30, n. 1, p. 24-31, ago. 2017. |
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Idioma: |
Português |
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Conteúdo: |
Este trabalho objetivou avaliar o efeito inseticida de Orobor N1®, Azamax®, Base Nim®, Fortneem® e Piretro® sobre adultos de Thaumastocoris peregrinus. Para isto, folhas de Eucalyptus camaldulensis foram imersas nas soluções dos tratamentos, recortadas e dispostas em tubos de fundo chato, juto com um inseto por tubo e acondicionados em BOD (26±2 °C, 12h de fotofase e U.R. de 60±10%), totalizando 20 repetições por tratamento. A mortalidade foi avaliada a cada seis horas, sendo que todos os tratamentos reduziram a longevidade de T. peregrinus e todas as concentrações do Piretro® causaram redução na longevidade de T. peregrinus em até dez horas. |
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Palavras-Chave: |
Alternative control; Bonze bug; Inceticida; Percevejo bronzeado; Thaumastocoris peregrinus. |
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Thesagro: |
Píretro; Praga de planta. |
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Thesaurus NAL: |
Insecticides. |
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Categoria do assunto: |
O Insetos e Entomologia |
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Marc: |
LEADER 01528naa a2200265 a 4500
001 2077289
005 2017-10-13
008 2017 bl uuuu u00u1 u #d
100 1 $aTEDESCO, F. G.
245 $aEficiência de produtos fitossanitários alternativos sobre adultos de Thaumastocoris peregrinus (Carpintero & Dellapé) (Hemiptera$bThaumastocoridae).$h[electronic resource]
260 $c2017
520 $aEste trabalho objetivou avaliar o efeito inseticida de Orobor N1®, Azamax®, Base Nim®, Fortneem® e Piretro® sobre adultos de Thaumastocoris peregrinus. Para isto, folhas de Eucalyptus camaldulensis foram imersas nas soluções dos tratamentos, recortadas e dispostas em tubos de fundo chato, juto com um inseto por tubo e acondicionados em BOD (26±2 °C, 12h de fotofase e U.R. de 60±10%), totalizando 20 repetições por tratamento. A mortalidade foi avaliada a cada seis horas, sendo que todos os tratamentos reduziram a longevidade de T. peregrinus e todas as concentrações do Piretro® causaram redução na longevidade de T. peregrinus em até dez horas.
650 $aInsecticides
650 $aPíretro
650 $aPraga de planta
653 $aAlternative control
653 $aBonze bug
653 $aInceticida
653 $aPercevejo bronzeado
653 $aThaumastocoris peregrinus
700 1 $aPOTRICH, M.
700 1 $aBARBOSA, L. R.
700 1 $aLOZANO, E.
700 1 $aSILVA, M. da F.
773 $tRevista Científica Eletrônica de Engenharia Florestal$gv. 30, n. 1, p. 24-31, ago. 2017.
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Embrapa Florestas (CNPF) |
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