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| Registros recuperados : 433 | |
| 202. |  | SILVA, G. B. da; ZAMBOLIM, L.; PRABHU, A. S.; ARAÚJO, L. G.; ZIMMERMANN, F. J. P. Estimativa de diversidade fenotípica nas populações de Pyricularia grisea de duas cultivares de arroz de terras altas. Fitopatologia Brasileira, v. 29, p. S145, ago. 2004. Suplemento, ref. 439. Edição de Resumos do XXXVII Congresso Brasileiro de Fitopatologia, Gramado, RS, ago. 2004.| Biblioteca(s): Embrapa Arroz e Feijão. |
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| 206. | | PRABHU, A. S.; FARIA, J. C. de; CARVALHO, J. R. P. de. Efeito da brusone sobre a materia seca, producao de graos e seus componentes, em arroz de sequeiro. Pesquisa Agropecuaria Brasileira, Brasilia, v.21, n.5, p.495-500, maio. 1986.| Biblioteca(s): Embrapa Arroz e Feijão; Embrapa Unidades Centrais. |
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| 210. | | PRABHU, A. S.; SILVA, G. B.; ALVES, A. M.; COBUCCI, T. Efeito de herbicidas pre-emergentes sobre a brusone nas folhas em arroz. Fitopatologia Brasileira, v. 28, p. S388, ago. 2003. Suplemento, ref. 862. Edição de resumos do XXXVI Congresso Brasileiro de Fitopatologia, Uberlândia, MG, ago. 2003.| Biblioteca(s): Embrapa Arroz e Feijão. |
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| 212. | | PINHEIRO, T. M.; SILVA-LOBO, V. L.; FILIPPI, M. C. C.; PRABHU, A. S. Efeito de fungicidas utilizados no controle de brusone e mancha de grãos em organismos não alvos. Tropical Plant Pathology, Brasília, DF, v. 34, p. S84, ago. 2009. Suplemento, ref. 301. Edição dos Resumos do XLII do Congresso Brasileiro de Fitopatologia, Rio de Janeiro, RJ, ago. 2009.| Biblioteca(s): Embrapa Arroz e Feijão. |
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| 213. | | CARLOTTO, H. S.; SANTOS, G. R.; REIS FILHO, J. C. D.; PRABHU, A. S. Efeito do silício, nitrogênio e do tratamento de sementes sobre o controle das principais doenças, produtividade e qualidade dos grãos do arroz irrigado. Fitopatologia Brasileira, v. 26, p. 411, ago. 2001. Suplemento, ref. 545. Edição dos Resumos do XXXIV Congresso Brasileiro de Fitopatologia, São Pedro, ago. 2001.| Biblioteca(s): Embrapa Arroz e Feijão. |
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| 216. | | GONÇALVES, F. J.; MEDANHA, R.; SILVA, G. B.; ARAÚJO, L. G.; PRABHU, A. S. Efeito da aplicação de fungicidas no controle da brusone em relação aos fungos do filoplano em arroz. Fitopatologia Brasileira, v. 31, p. S223-S224, ago. 2006. Suplemento, ref. 0408. Edição de resumos do XXXIX Congresso Brasileiro de Fitopatologia, Salvador, ago. 2006.| Biblioteca(s): Embrapa Arroz e Feijão. |
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| 220. | | LOBO, V. L. da S.; FILIPPI, M. C. C. de; PRABHU, A. S. Doenças. In: SANTIAGO, C. M.; BRESEGHELLO, H. C. de P.; FERREIRA, C. M. (Ed.). Arroz: o produtor pergunta, a Embrapa responde. 2. ed. rev. e ampl. Brasília, DF: Embrapa, 2013. p. 143-158. (Coleção 500 perguntas, 500 respostas).| Biblioteca(s): Embrapa Arroz e Feijão. |
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| Registros recuperados : 433 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Semiárido; Embrapa Uva e Vinho. |
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Data corrente: |
17/09/2013 |
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Data da última atualização: |
25/04/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
NATIVIDADE, M. M. P.; CORREA, L. C.; SOUZA, S. V. C. de; PEREIRA, G. E.; LIMA, L. C. de O. |
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Afiliação: |
MARIANA MIRELLE PEREIRA NATIVIDADE, Universidade Federal de Lavras; LUIZ CLAUDIO CORREA, CPATSA; SCHEILLA VITORINO CARVALHO DE SOUZA, Universidade Federal de Minas Gerais; GIULIANO ELIAS PEREIRA, CNPUV / CPATSA; LUIZ CARLOS DE OLIVEIRA LIMA, Universidade Federal de Lavras. |
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Título: |
Simultaneous analysis of 25 phenolic compounds in grape juice for HPLC: Method validation and characterization of São Francisco Valley samples. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
Microchemical Journal, New York, v. 110, p. 665-674, abr. 2013. |
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Idioma: |
Inglês |
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Conteúdo: |
A HPLCmethod for simultaneous determination of 25 phenolic compounds in grape juicewas optimized, validated and applied in the characterization of juices produced in São Francisco Valley (SFV), Brazil. The performance characteristics of the method were established by assays with standard solutions of phenolic compounds, spiked and unspiked samples. Linearity,matrix effects, trueness, precision, detection and quantification limits were evaluated. Linearity was demonstrated in the concentration ranges tested for all phenolic compounds. Significant matrix effects were not identified for the studied compounds.Mean recoveries ranged from86.18 to 106.50%, demonstrating no lack of trueness. Precision of the method was confirmed for the 25 phenolic compounds, with acceptable repeatability relative standard deviations (from 0.71 to 9.24%) and within-reproducibility relative standard deviations (from1.34 to 9.26%) for unspiked and spiked samples. The theoretical limits of detection and quantification of themethod varied from 0.001 to 0.19 Mg mL-1 and 0.003 to 0.37 Mg mL-1, respectively. The results of the validation process showed that the proposed method is fitness for purpose. This method was able to identify simultaneously 25 phenolic compounds and had advantages such as low consumption of solvents and easy sample preparation. The phenolic profile of the grape juices from SFV varied according the grape cultivar. Phenolics of the anthocyanins and tannins class predominated in red grape juices, while in white grape juice phenolic acids and tannins were found at high concentrations. MenosA HPLCmethod for simultaneous determination of 25 phenolic compounds in grape juicewas optimized, validated and applied in the characterization of juices produced in São Francisco Valley (SFV), Brazil. The performance characteristics of the method were established by assays with standard solutions of phenolic compounds, spiked and unspiked samples. Linearity,matrix effects, trueness, precision, detection and quantification limits were evaluated. Linearity was demonstrated in the concentration ranges tested for all phenolic compounds. Significant matrix effects were not identified for the studied compounds.Mean recoveries ranged from86.18 to 106.50%, demonstrating no lack of trueness. Precision of the method was confirmed for the 25 phenolic compounds, with acceptable repeatability relative standard deviations (from 0.71 to 9.24%) and within-reproducibility relative standard deviations (from1.34 to 9.26%) for unspiked and spiked samples. The theoretical limits of detection and quantification of themethod varied from 0.001 to 0.19 Mg mL-1 and 0.003 to 0.37 Mg mL-1, respectively. The results of the validation process showed that the proposed method is fitness for purpose. This method was able to identify simultaneously 25 phenolic compounds and had advantages such as low consumption of solvents and easy sample preparation. The phenolic profile of the grape juices from SFV varied according the grape cultivar. Phenolics of the anthocyanins and tannins class predominated in red gr... Mostrar Tudo |
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Palavras-Chave: |
Composto fenológico; HPLC; Perfil fenólico; Suco de uva; Vale do São Francisco. |
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Thesagro: |
Suco; Uva; Viticultura. |
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Thesaurus NAL: |
Grapes. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/89541/1/Mariana-Pereira-et-al-MJ-092013.pdf
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/95257/1/Mariana-Pereira-et-al-MJ-092013.pdf
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Marc: |
LEADER 02441naa a2200277 a 4500
001 1966365
005 2017-04-25
008 2013 bl uuuu u00u1 u #d
100 1 $aNATIVIDADE, M. M. P.
245 $aSimultaneous analysis of 25 phenolic compounds in grape juice for HPLC$bMethod validation and characterization of São Francisco Valley samples.$h[electronic resource]
260 $c2013
520 $aA HPLCmethod for simultaneous determination of 25 phenolic compounds in grape juicewas optimized, validated and applied in the characterization of juices produced in São Francisco Valley (SFV), Brazil. The performance characteristics of the method were established by assays with standard solutions of phenolic compounds, spiked and unspiked samples. Linearity,matrix effects, trueness, precision, detection and quantification limits were evaluated. Linearity was demonstrated in the concentration ranges tested for all phenolic compounds. Significant matrix effects were not identified for the studied compounds.Mean recoveries ranged from86.18 to 106.50%, demonstrating no lack of trueness. Precision of the method was confirmed for the 25 phenolic compounds, with acceptable repeatability relative standard deviations (from 0.71 to 9.24%) and within-reproducibility relative standard deviations (from1.34 to 9.26%) for unspiked and spiked samples. The theoretical limits of detection and quantification of themethod varied from 0.001 to 0.19 Mg mL-1 and 0.003 to 0.37 Mg mL-1, respectively. The results of the validation process showed that the proposed method is fitness for purpose. This method was able to identify simultaneously 25 phenolic compounds and had advantages such as low consumption of solvents and easy sample preparation. The phenolic profile of the grape juices from SFV varied according the grape cultivar. Phenolics of the anthocyanins and tannins class predominated in red grape juices, while in white grape juice phenolic acids and tannins were found at high concentrations.
650 $aGrapes
650 $aSuco
650 $aUva
650 $aViticultura
653 $aComposto fenológico
653 $aHPLC
653 $aPerfil fenólico
653 $aSuco de uva
653 $aVale do São Francisco
700 1 $aCORREA, L. C.
700 1 $aSOUZA, S. V. C. de
700 1 $aPEREIRA, G. E.
700 1 $aLIMA, L. C. de O.
773 $tMicrochemical Journal, New York$gv. 110, p. 665-674, abr. 2013.
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Embrapa Semiárido (CPATSA) |
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