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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Ocidental. |
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Data corrente: |
09/05/2018 |
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Data da última atualização: |
12/11/2019 |
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Tipo da produção científica: |
Nota Técnica/Nota Científica |
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Autoria: |
RODRIGUES, H. S.; BORÉM, A.; VALENTE, M. S. F.; LOPES, M. T. G.; CRUZ, C. D.; CHAVES, F. C. M.; BEZERRA, C. de S. |
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Afiliação: |
Haroldo Silva Rodrigues, UFV; Aluízio Borém, UFV; Mágno Sávio Ferreira Valente, UFAM; Maria Teresa Gomes Lopes, UFAM; Cosme Damião Cruz, UFV; FRANCISCO CELIO MAIA CHAVES, CPAA; Caroline de Souza Bezerra, UFAM. |
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Título: |
Genetic diversity among accessions of sacha inchi (Plukenetia volubilis) by phenotypic characteristics analysis. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Acta Amazônica, v. 48, n. 2, p. 93-97, 2018. |
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DOI: |
http://dx.doi.org/10.1590/1809-4392201702591 |
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Idioma: |
Inglês |
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Conteúdo: |
Diversidade genética entre acessos de sacha inchi (Plukenetia volubilis) por análise de características fenotípicas. The purpose of this study was to analyze sacha inchi genetic diversity and describe accessions based on phenotypic characteristics. |
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Palavras-Chave: |
Diversidade genética; Sacha inchi. |
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Thesagro: |
Biometria; Euphorbiaceae. |
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Thesaurus Nal: |
Plukenetia volubilis. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/176564/1/AA-2017-0259.pdf
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Marc: |
LEADER 01049naa a2200265 a 4500
001 2091299
005 2019-11-12
008 2018 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1590/1809-4392201702591$2DOI
100 1 $aRODRIGUES, H. S.
245 $aGenetic diversity among accessions of sacha inchi (Plukenetia volubilis) by phenotypic characteristics analysis.
260 $c2018
520 $aDiversidade genética entre acessos de sacha inchi (Plukenetia volubilis) por análise de características fenotípicas. The purpose of this study was to analyze sacha inchi genetic diversity and describe accessions based on phenotypic characteristics.
650 $aPlukenetia volubilis
650 $aBiometria
650 $aEuphorbiaceae
653 $aDiversidade genética
653 $aSacha inchi
700 1 $aBORÉM, A.
700 1 $aVALENTE, M. S. F.
700 1 $aLOPES, M. T. G.
700 1 $aCRUZ, C. D.
700 1 $aCHAVES, F. C. M.
700 1 $aBEZERRA, C. de S.
773 $tActa Amazônica$gv. 48, n. 2, p. 93-97, 2018.
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Registro original: |
Embrapa Amazônia Ocidental (CPAA) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Instrumentação. Para informações adicionais entre em contato com cnpdia.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
13/08/2004 |
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Data da última atualização: |
27/01/2010 |
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Autoria: |
BARREIRO, J. C.; HANSEN, H. C. B.; MARTIN-NETO, L.; CAPELATO, M. D. |
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Título: |
Oxidation of Atrazine by hydrogen Peroxide in the presence of Ferrihydrite and humic acid. |
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Ano de publicação: |
2004 |
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Fonte/Imprenta: |
In: MARTIN-NETO, L.; MILORI, D.M.B.P.; SILVA, W.T.L. (Ed.). Humic substances and soil and water environment: International Meeting of IHSS, 12. São Carlos : Embrapa Instrumentação Agropecuária, 2004. p. 588-590. |
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Idioma: |
Inglês |
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Notas: |
CLASSIFICAÇÃO CDD: 630 |
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Conteúdo: |
lNTRODUCTION
Oxidation of organic compounds, such as pesticides, have been extensively investigated. In the environment oxidation is facilitated by the presence of oxidants, and abiotic and biotic catalysts, such as enzymes produced by microorganisms. The chemical oxidation mediated by Fenlon-like reactants has been proposed as an active mechanism for pollutant oxidation in soils and sedimenls. In the Fenton-like reaction, Fe(III) is reduced to Fe(II) via hydrogen peroxide (H2O2) or the superoxide anion radical (O2-) with subsequent reaction of H2O2 and Fe(II) to yield hydroxyl radicais ('OH) and Fe(III). Fenton reactions may involve soluble iron (homogeneous reactions) or solid-phase iron mineraIs (helerogeneous reactions), such as ferrihydrite, a naturally occurring mineral
in soil (Huling et aI., 2001).
Humic substances are the major soil organic matter components, comprising a wide diversity wilh respect to structure and functional conligurations. Due to its chemical characteristics, humic subslances can play an important role in the degradation of pesticides. In biological systems, humic substances have been shown to facilitate electron transfer from reduced iron to microbial systems.
Similar redox coupling in Fenlon systems can be provided by humic material constiluents like quinones and hydroquinones. Such reactions may provide an addilional pathway for hydroxyl radical prOduclion during Fe(III) reduction, which may result in a higher rale of degradation of peslicides and other organic pollutants (Huling el aI., 1998).
The aim of this work is to evaluate the effect of humic acids (HA), extracted from Brazilian soil, on the reaclion rate and efficiency of atrazine oxidation by Fenton-like reaction calalyzed by the
presence of the iron oxide ferrihydrite. MenoslNTRODUCTION
Oxidation of organic compounds, such as pesticides, have been extensively investigated. In the environment oxidation is facilitated by the presence of oxidants, and abiotic and biotic catalysts, such as enzymes produced by microorganisms. The chemical oxidation mediated by Fenlon-like reactants has been proposed as an active mechanism for pollutant oxidation in soils and sedimenls. In the Fenton-like reaction, Fe(III) is reduced to Fe(II) via hydrogen peroxide (H2O2) or the superoxide anion radical (O2-) with subsequent reaction of H2O2 and Fe(II) to yield hydroxyl radicais ('OH) and Fe(III). Fenton reactions may involve soluble iron (homogeneous reactions) or solid-phase iron mineraIs (helerogeneous reactions), such as ferrihydrite, a naturally occurring mineral
in soil (Huling et aI., 2001).
Humic substances are the major soil organic matter components, comprising a wide diversity wilh respect to structure and functional conligurations. Due to its chemical characteristics, humic subslances can play an important role in the degradation of pesticides. In biological systems, humic substances have been shown to facilitate electron transfer from reduced iron to microbial systems.
Similar redox coupling in Fenlon systems can be provided by humic material constiluents like quinones and hydroquinones. Such reactions may provide an addilional pathway for hydroxyl radical prOduclion during Fe(III) reduction, which may result in a higher rale of degradation of peslici... Mostrar Tudo |
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Palavras-Chave: |
Fenton reaction; humic acid; hydroxyl radical; Iron oxide. |
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Thesaurus NAL: |
atrazine. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02608naa a2200229 a 4500
001 1028577
005 2010-01-27
008 2004 bl --- 0-- u #d
100 1 $aBARREIRO, J. C.
245 $aOxidation of Atrazine by hydrogen Peroxide in the presence of Ferrihydrite and humic acid.
260 $c2004
500 $aCLASSIFICAÇÃO CDD: 630
520 $alNTRODUCTION Oxidation of organic compounds, such as pesticides, have been extensively investigated. In the environment oxidation is facilitated by the presence of oxidants, and abiotic and biotic catalysts, such as enzymes produced by microorganisms. The chemical oxidation mediated by Fenlon-like reactants has been proposed as an active mechanism for pollutant oxidation in soils and sedimenls. In the Fenton-like reaction, Fe(III) is reduced to Fe(II) via hydrogen peroxide (H2O2) or the superoxide anion radical (O2-) with subsequent reaction of H2O2 and Fe(II) to yield hydroxyl radicais ('OH) and Fe(III). Fenton reactions may involve soluble iron (homogeneous reactions) or solid-phase iron mineraIs (helerogeneous reactions), such as ferrihydrite, a naturally occurring mineral in soil (Huling et aI., 2001). Humic substances are the major soil organic matter components, comprising a wide diversity wilh respect to structure and functional conligurations. Due to its chemical characteristics, humic subslances can play an important role in the degradation of pesticides. In biological systems, humic substances have been shown to facilitate electron transfer from reduced iron to microbial systems. Similar redox coupling in Fenlon systems can be provided by humic material constiluents like quinones and hydroquinones. Such reactions may provide an addilional pathway for hydroxyl radical prOduclion during Fe(III) reduction, which may result in a higher rale of degradation of peslicides and other organic pollutants (Huling el aI., 1998). The aim of this work is to evaluate the effect of humic acids (HA), extracted from Brazilian soil, on the reaclion rate and efficiency of atrazine oxidation by Fenton-like reaction calalyzed by the presence of the iron oxide ferrihydrite.
650 $aatrazine
653 $aFenton reaction
653 $ahumic acid
653 $ahydroxyl radical
653 $aIron oxide
700 1 $aHANSEN, H. C. B.
700 1 $aMARTIN-NETO, L.
700 1 $aCAPELATO, M. D.
773 $tIn: MARTIN-NETO, L.; MILORI, D.M.B.P.; SILVA, W.T.L. (Ed.). Humic substances and soil and water environment: International Meeting of IHSS, 12. São Carlos : Embrapa Instrumentação Agropecuária, 2004. p. 588-590.
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