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Registro Completo |
Biblioteca(s): |
Embrapa Uva e Vinho. |
Data corrente: |
13/02/2017 |
Data da última atualização: |
06/05/2019 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
SILVA, L. F. da; GUERRA, C. C.; FORESTI, A.; BERGOLD, A. M. |
Afiliação: |
LETICIA FLORES DA SILVA, CNPUV; CELITO CRIVELLARO GUERRA, CNPUV; Alana Foresti, LACEM-Laborato´rio de Cromatografia e Espectrometria de Massas, Embrapa Uva e Vinho, Rua Livramento, 515, Bento Gonc¸alves, RS 95700-000, Brazil; Ana M. Bergold, Tecnologia em Viticultura e Enologia, Instituto Federal do Rio Grande do Sul, Av. Osvaldo Aranha, 540, Bento Gonc¸alves, RS 95700-000, Brazil. |
Título: |
Verification of the selectivity of a liquid chromatography method for determination of stilbenes and flavonols in red wines by mass spectrometry. |
Ano de publicação: |
2016 |
Fonte/Imprenta: |
Chemical Papers, [online], 2016. |
DOI: |
10.1007/s11696-016-0066-7 |
Idioma: |
Inglês |
Conteúdo: |
Quantification of bioactive phenols, like stilbenes and flavonols (SaF), has been conducted to evaluate the nutraceutical potential of red wines. However, there is still a lack of full validated, fast and accessible liquid chromatography methods offering high selectivity and a simple procedure. We present here the use of a high-resolution mass spectrometer to evaluate the selectivity of a feasible and traditional liquid chromatography technique (HPLC? DAD) to analyze markers of aglycone SaF in red wines. The SaF compounds were tested: trans-resveratrol, trans-eviniferin, quercetin, myricetin, and kaempferol, as well as trans-cinnamic acid, one of their precursors. System suitability and validation tests were employed for the selected conditions (octylsilane column, methanol mobile phase, and gradient elution). The validation process ensured the HPLC?DAD method was selective, linear, sensitive, precise, accurate and robust. The method was then applied to red wine samples from the Campanha Gau´cha region, Southern Brazil. The real samples contained different SaF levels, showing that the method is applicable to routine use. Furthermore, this was the first SaF characterization of red wines from the Campanha Gau´cha, contributing to regional and product development. Keywords Bioactive phenols Red wine Liquid chromatography Mass spectrometry Validation |
Palavras-Chave: |
Bioactive phenols; Red wine; Validation Ab; Vinhos tintos. |
Thesaurus Nal: |
Liquid chromatography; Mass spectrometry. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/155544/1/silva-ChemPap-2016.pdf
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Marc: |
LEADER 02123naa a2200241 a 4500 001 2063926 005 2019-05-06 008 2016 bl uuuu u00u1 u #d 024 7 $a10.1007/s11696-016-0066-7$2DOI 100 1 $aSILVA, L. F. da 245 $aVerification of the selectivity of a liquid chromatography method for determination of stilbenes and flavonols in red wines by mass spectrometry.$h[electronic resource] 260 $c2016 520 $aQuantification of bioactive phenols, like stilbenes and flavonols (SaF), has been conducted to evaluate the nutraceutical potential of red wines. However, there is still a lack of full validated, fast and accessible liquid chromatography methods offering high selectivity and a simple procedure. We present here the use of a high-resolution mass spectrometer to evaluate the selectivity of a feasible and traditional liquid chromatography technique (HPLC? DAD) to analyze markers of aglycone SaF in red wines. The SaF compounds were tested: trans-resveratrol, trans-eviniferin, quercetin, myricetin, and kaempferol, as well as trans-cinnamic acid, one of their precursors. System suitability and validation tests were employed for the selected conditions (octylsilane column, methanol mobile phase, and gradient elution). The validation process ensured the HPLC?DAD method was selective, linear, sensitive, precise, accurate and robust. The method was then applied to red wine samples from the Campanha Gau´cha region, Southern Brazil. The real samples contained different SaF levels, showing that the method is applicable to routine use. Furthermore, this was the first SaF characterization of red wines from the Campanha Gau´cha, contributing to regional and product development. Keywords Bioactive phenols Red wine Liquid chromatography Mass spectrometry Validation 650 $aLiquid chromatography 650 $aMass spectrometry 653 $aBioactive phenols 653 $aRed wine 653 $aValidation Ab 653 $aVinhos tintos 700 1 $aGUERRA, C. C. 700 1 $aFORESTI, A. 700 1 $aBERGOLD, A. M. 773 $tChemical Papers, [online], 2016.
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Embrapa Uva e Vinho (CNPUV) |
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Registro Completo
Biblioteca(s): |
Embrapa Soja. |
Data corrente: |
19/01/2024 |
Data da última atualização: |
19/01/2024 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 4 |
Autoria: |
WERNER, F.; BALBINOT JUNIOR, A. A.; FERREIRA, A. S.; FRANCHINI, J. C.; DEBIASI, H.; SILVA, M. A. de A. e. |
Afiliação: |
FLÁVIA WERNER, LONDRINA STATE UNIVERSITY; ALVADI ANTONIO BALBINOT JUNIOR, CNPSO; ANDRÉ SAMPAIO FERREIRA, LONDRINA STATE UNIVERSITY; JULIO CEZAR FRANCHINI DOS SANTOS, CNPSO; HENRIQUE DEBIASI, CNPSO; MARCELO AUGUSTO DE AGUIAR E SILVA, LONDRINA STATE UNIVERSITY. |
Título: |
Soybean growth and nitrogen accumulation by soybeans in response to desiccation times of Urochloa brizantha pasture and nitrogen fertilization. |
Ano de publicação: |
2023 |
Fonte/Imprenta: |
Semina. Ciências Agrárias, v. 44, n. 1, p. 237-256, 2023. |
DOI: |
10.5433/1679-0359.2023v44n1p237 |
Idioma: |
Inglês |
Notas: |
Título em português: Crescimento e acúmulo de nitrogênio pela soja em função de épocas de dessecação de pastagem de Urochloa brizantha e adubação nitrogenada. |
Thesagro: |
Fertilizante Nitrogenado; Soja. |
Thesaurus NAL: |
Soybeans; Yield components. |
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
Marc: |
LEADER 00957naa a2200241 a 4500 001 2161059 005 2024-01-19 008 2023 bl uuuu u00u1 u #d 024 7 $a10.5433/1679-0359.2023v44n1p237$2DOI 100 1 $aWERNER, F. 245 $aSoybean growth and nitrogen accumulation by soybeans in response to desiccation times of Urochloa brizantha pasture and nitrogen fertilization.$h[electronic resource] 260 $c2023 500 $aTítulo em português: Crescimento e acúmulo de nitrogênio pela soja em função de épocas de dessecação de pastagem de Urochloa brizantha e adubação nitrogenada. 650 $aSoybeans 650 $aYield components 650 $aFertilizante Nitrogenado 650 $aSoja 700 1 $aBALBINOT JUNIOR, A. A. 700 1 $aFERREIRA, A. S. 700 1 $aFRANCHINI, J. C. 700 1 $aDEBIASI, H. 700 1 $aSILVA, M. A. de A. e 773 $tSemina. Ciências Agrárias$gv. 44, n. 1, p. 237-256, 2023.
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