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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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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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Registro original: |
Embrapa Semiárido (CPATSA) |
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Biblioteca |
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Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
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URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
17/10/2002 |
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Data da última atualização: |
30/04/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SILVA, W. da; VILELA, D.; FERREIRA, R. de P.; PEREIRA, A. V.; COBUCCI, T. |
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Afiliação: |
WILSON DA SILVA, CNPGL; DUARTE VILELA, CNPGL; REINALDO DE PAULA FERREIRA, CNPGL; ANTONIO VANDER PEREIRA, CNPGL; TARCISIO COBUCCI, CNPAF. |
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Título: |
Herbicidas na cultura da alfafa. |
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Ano de publicação: |
2002 |
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Fonte/Imprenta: |
Revista Ceres, v. 49, n. 284, p. 405-418, jul./ago. 2002. |
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Idioma: |
Português |
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Conteúdo: |
Objetivou-se avaliar: 1) a tolerância da alfafa, cultivar Crioula, e a eficiência de herbicidas no controle de plantas daninhas latifoliadas, em pre-emergência, em solos com diferentes teores de matéria orgânica: 0,96% (pH 5,4) e 2,61% (pH 6,1); e 2) também avaliou-se a eficiência do oxyfluorfen e da mistura diuron e parquat no controle de plantas daninhas apos o corte da alfafa (com 10% de floração). |
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Palavras-Chave: |
Controle; Crioula; Cultivar; Planta daninha; Seletividade. |
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Thesagro: |
Alfafa; Herbicida; Medicago Sativa. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/79376/1/Cobucci3.pdf
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Marc: |
LEADER 01061naa a2200265 a 4500
001 1192296
005 2022-04-30
008 2002 bl uuuu u00u1 u #d
100 1 $aSILVA, W. da
245 $aHerbicidas na cultura da alfafa.
260 $c2002
520 $aObjetivou-se avaliar: 1) a tolerância da alfafa, cultivar Crioula, e a eficiência de herbicidas no controle de plantas daninhas latifoliadas, em pre-emergência, em solos com diferentes teores de matéria orgânica: 0,96% (pH 5,4) e 2,61% (pH 6,1); e 2) também avaliou-se a eficiência do oxyfluorfen e da mistura diuron e parquat no controle de plantas daninhas apos o corte da alfafa (com 10% de floração).
650 $aAlfafa
650 $aHerbicida
650 $aMedicago Sativa
653 $aControle
653 $aCrioula
653 $aCultivar
653 $aPlanta daninha
653 $aSeletividade
700 1 $aVILELA, D.
700 1 $aFERREIRA, R. de P.
700 1 $aPEREIRA, A. V.
700 1 $aCOBUCCI, T.
773 $tRevista Ceres$gv. 49, n. 284, p. 405-418, jul./ago. 2002.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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Origem |
Tipo/Formato |
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