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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: |
10/01/2007 |
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Data da última atualização: |
20/10/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PRESTES, R. A.; COLNAGO, L. A.; FORATO, L. A.; VIZZOTTO, L.; NOVOTNY, E. H.; CARRILHO, E. |
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Afiliação: |
ROSILENE APARECIDA PRESTES, USP; LUIZ ALBERTO COLNAGO, CNPDIA; LUCIMARA APARECIDA FORATO, CNPDIA; LUCINÉIA VIZZOTTO, CNPDIA; ETELVINO HENRIQUE NOVOTNY, CNPS; EMANUEL CARRILHO, USP. |
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Título: |
A rapid and automated low resolution NMR method to analyze oil quality in intact oilseeds. |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
Analytica Chimica Acta, Amsterdam, v. 596, n. 2, p. 325-329, July 2007. |
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DOI: |
https://doi.org/10.1016/j.aca.2007.06.022 |
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Idioma: |
Inglês |
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Conteúdo: |
Oilseeds with modified fatty acid profiles have been the genetic alternative for high quality vegetable oil for food and biodiesel applications. They can provide stable, functional oils for the food industry, without the hydrogenation process that produces trans-fatty acid, which has been linked to cardiovascular disease. High yield and high quality oilseeds are also necessary for the success of biodiesel programs, as polyunsatured or saturated fatty acid oil produces biofuel with undesirable properties. In this paper, a rapid and automated low resolution NMR method to select intact oilseeds with a modified fatty acid profile is introduced, based on 1H transverse relaxation time (T2). The T2 weighted NMR signal, obtained by a CPMG pulse sequence and processed by chemometric methods was able to determine the oil quality in intact seeds by its fatty composition, cetane number, iodine value and kinematic viscosity with a correlation coefficient r > 0.9. The automated system has the potential to analyze more than 1000 samples per hour and is a powerful tool to speed up the selection of high quality oilseeds for food and biodiesel applications. |
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Palavras-Chave: |
Ácidos graxos trans; Oleaginosas; Ressonância magnética nuclear. |
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Thesaurus Nal: |
biodiesel. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 01920naa a2200241 a 4500
001 1339182
005 2021-10-20
008 2007 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.aca.2007.06.022$2DOI
100 1 $aPRESTES, R. A.
245 $aA rapid and automated low resolution NMR method to analyze oil quality in intact oilseeds.$h[electronic resource]
260 $c2007
520 $aOilseeds with modified fatty acid profiles have been the genetic alternative for high quality vegetable oil for food and biodiesel applications. They can provide stable, functional oils for the food industry, without the hydrogenation process that produces trans-fatty acid, which has been linked to cardiovascular disease. High yield and high quality oilseeds are also necessary for the success of biodiesel programs, as polyunsatured or saturated fatty acid oil produces biofuel with undesirable properties. In this paper, a rapid and automated low resolution NMR method to select intact oilseeds with a modified fatty acid profile is introduced, based on 1H transverse relaxation time (T2). The T2 weighted NMR signal, obtained by a CPMG pulse sequence and processed by chemometric methods was able to determine the oil quality in intact seeds by its fatty composition, cetane number, iodine value and kinematic viscosity with a correlation coefficient r > 0.9. The automated system has the potential to analyze more than 1000 samples per hour and is a powerful tool to speed up the selection of high quality oilseeds for food and biodiesel applications.
650 $abiodiesel
653 $aÁcidos graxos trans
653 $aOleaginosas
653 $aRessonância magnética nuclear
700 1 $aCOLNAGO, L. A.
700 1 $aFORATO, L. A.
700 1 $aVIZZOTTO, L.
700 1 $aNOVOTNY, E. H.
700 1 $aCARRILHO, E.
773 $tAnalytica Chimica Acta, Amsterdam$gv. 596, n. 2, p. 325-329, July 2007.
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| 1. |  | MORAIS, J. P. S.; SILVA, W. T. L. D.; SILVA, W. T. L. D.; ANDRADE, F. R. de; OLIVERA, A. C. de; OLIVEIRA, J. E. de; GRASSI, V.; VAZ, C. M. P. V.; MATTOSO, L. H. C. Caracterização de um eletrodo de pasta de carbono modificado com pani e poea para determinação voltamétrica de toxinas vegetais. In: WORKSHOP DA REDE DE NANOTECNOLOGIA APLICADA AO AGRONEGÓCIO, 5., 2009, São Carlos. Anais...São Carlos, SP: Embrapa Instrumentação Agropecuária, 2009. p. 32-34| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Algodão. |
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| 2. | | SIMOES, M. L.; SILVA, W. T. L. D.; SAAB, S. da C.; SANTOS, L. M. dos; MARTIN-NETO, L. Caracterização de adubos orgânicos por espectroscopia de ressonância paramagnética eletrônica. Revista Brasileira de Ciência do solo, São Paulo, v. 31, n. 6, p. 1319-1327, 2007.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Internacional - A |
| Biblioteca(s): Embrapa Instrumentação. |
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| Registros recuperados : 2 | |
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