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Registro Completo |
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Biblioteca(s): |
Embrapa Uva e Vinho. |
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Data corrente: |
27/08/2014 |
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Data da última atualização: |
02/04/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
WELKE, J. E.; ZANUS, M. C.; LAZZAROTTO, M.; ZINI, C. A. |
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Afiliação: |
Juliane Elisa Welke; MAURO CELSO ZANUS, CNPUV; MARCELO LAZZAROTTO, CNPF; Cláudia Alcaraz Zini. |
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Título: |
Quantitative analysis of headspace volatile compounds using comprehensive two-dimensional gas chromatography and their contribution to the aroma of Chardonnay wine. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Food Research International, v. 59, p. 85-99, 2014. |
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Idioma: |
Português |
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Notas: |
DOI 10.1016/j.foodres.2014.02.002 |
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Conteúdo: |
The quantitative determination of volatile compounds of Chardonnay wines using HS-SPME-GC × GC/TOFMS along with the determination of odor activity value (OAV) and relative odor contribution (ROC) of volatiles are reported for the first time. The use of GC × GC/TOFMS for the analysis of Chardonnay wine of Serra Gaucha resulted in the tentative identification of 243 compounds, showing the superior performance of this analytical technique for this specific varietal wine, considering that the number of compounds usually separated by 1D-GC for this type of wine is lower. Furthermore, 42 compounds co-eluted in the first dimension and 34 of them were separated in the second dimension, while the others were resolved by spectral deconvolution (8), which indicates that the conventional 1D-GC/MS may result in misleading results. The calculation of OAV and ROC allowed the determination of the volatile compounds that presented the greater contribution to wine aroma. Ethyl octanoate, ethyl hexanoate, ethyl butanoate, and beta-damascenone showed the highest OAV and ROC values, although other 43 compounds showed also potential to contribute to wine aroma. Figures of merit of the developed method were: accuracies from 92.4 to 102.6%, repeatability from 1.2% to 13.4%, LOD from 0.001 ?g L?1 (ethyl isovalerate and hexanoic acid) to 2.554 ?g L?1 (ethyl 3-hydroxybutanoate), LOQ from 0.003 ?g L?1 (ethyl isovalerate and hexanoic acid) to 7.582 ?g L?1 (ethyl 3-hydroxybutanoate). |
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Palavras-Chave: |
Chardonnay; Odor activity value; Relative odor contribution. |
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Thesagro: |
Aroma; Cromatografia gasosa; Vinho. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/107375/1/Welke2014-Aroma-Chardonnay.pdf
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Marc: |
LEADER 02266naa a2200241 a 4500
001 1993557
005 2019-04-02
008 2014 bl uuuu u00u1 u #d
100 1 $aWELKE, J. E.
245 $aQuantitative analysis of headspace volatile compounds using comprehensive two-dimensional gas chromatography and their contribution to the aroma of Chardonnay wine.$h[electronic resource]
260 $c2014
500 $aDOI 10.1016/j.foodres.2014.02.002
520 $aThe quantitative determination of volatile compounds of Chardonnay wines using HS-SPME-GC × GC/TOFMS along with the determination of odor activity value (OAV) and relative odor contribution (ROC) of volatiles are reported for the first time. The use of GC × GC/TOFMS for the analysis of Chardonnay wine of Serra Gaucha resulted in the tentative identification of 243 compounds, showing the superior performance of this analytical technique for this specific varietal wine, considering that the number of compounds usually separated by 1D-GC for this type of wine is lower. Furthermore, 42 compounds co-eluted in the first dimension and 34 of them were separated in the second dimension, while the others were resolved by spectral deconvolution (8), which indicates that the conventional 1D-GC/MS may result in misleading results. The calculation of OAV and ROC allowed the determination of the volatile compounds that presented the greater contribution to wine aroma. Ethyl octanoate, ethyl hexanoate, ethyl butanoate, and beta-damascenone showed the highest OAV and ROC values, although other 43 compounds showed also potential to contribute to wine aroma. Figures of merit of the developed method were: accuracies from 92.4 to 102.6%, repeatability from 1.2% to 13.4%, LOD from 0.001 ?g L?1 (ethyl isovalerate and hexanoic acid) to 2.554 ?g L?1 (ethyl 3-hydroxybutanoate), LOQ from 0.003 ?g L?1 (ethyl isovalerate and hexanoic acid) to 7.582 ?g L?1 (ethyl 3-hydroxybutanoate).
650 $aAroma
650 $aCromatografia gasosa
650 $aVinho
653 $aChardonnay
653 $aOdor activity value
653 $aRelative odor contribution
700 1 $aZANUS, M. C.
700 1 $aLAZZAROTTO, M.
700 1 $aZINI, C. A.
773 $tFood Research International$gv. 59, p. 85-99, 2014.
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Registro original: |
Embrapa Uva e Vinho (CNPUV) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pantanal. Para informações adicionais entre em contato com cpap.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
29/01/2001 |
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Data da última atualização: |
30/03/2017 |
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Autoria: |
LARA, M. A. C.; SERENO, J. R. B.; ABREU, U. G. P.; CONTEL, E. P. B. |
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Afiliação: |
Instituto de Zootecnia (Nova Odessa, SP). EMBRAPA Pantanal (Corumba, MS). |
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Título: |
Polimorfismo genetico de la peptidasa-B en bovinos criados en Brasil. |
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Ano de publicação: |
2000 |
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Fonte/Imprenta: |
Archivos de Zootecnia, v.49, n.185/186, p.31-37, 2000. |
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Idioma: |
Espanhol |
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Conteúdo: |
El presente estudio fue conducido con el objetivo de investigar la presencia de diferentes formas de la Pep-B en razas bovinas y sus distancias geneticas, a partir de sus frecuencias alelicas. Fueron utilizads 1691 muestras de sangre de vacunos de origen Bos taurus taurus, pertenecientes a las razas especializadas (Frisona, Pardo-Suiza y Jersey), naturalizadas brasilenas (Pantaneira, Caracu y Mantiqueira) y argentina (Criollo Argentino) y razas de origen Bos taurus indicus (Nelore y Gir). En las razas Frisona, Pardo-Suiza, Jersey y Criollo Argentino, el locus Pep-B mostro ser monomorfico, con la fijacion del alelo Pep-B2. En las razas Pantaneira y Mantiqueira fueron observados los siguientes fenotipos: Pep-B2, Pep-B3, Pep-B1-2, Pep-B2-3 y Pep-B1-3 mientras que en las demas, los fenotipos fueron Pep-B1, Pep-B1-2, y Pep-B2. La presencia del alelo Pep-B3, en las razas Mantiqueira y pantaneira, sustenta la hipotesis de que, ese alelo, pueda ser marcador de razas ibericas, pues segun los datos historicos, ambas razas tuvieron en su origen la participacion de los bovinos oriundos de la Peninsula Iberica. El cluster formado por las razas Mantiqueira y pantaneira, refuerza la hipotesis de origen monofiletica y, por tanto esas razas pudieron tener un ancestro comum, probablemente el Bos taurus primigenius, introducido por los portuguses y espanoles durante la coloracion de America del Sur. |
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Palavras-Chave: |
Bovine; Brasil; Genetic; Relacao; Relation. |
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Thesagro: |
Bovino; Genética; Polimorfismo. |
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Thesaurus NAL: |
Brazil; polymorphism. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02102naa a2200277 a 4500
001 1805059
005 2017-03-30
008 2000 bl --- 0-- u #d
100 1 $aLARA, M. A. C.
245 $aPolimorfismo genetico de la peptidasa-B en bovinos criados en Brasil.
260 $c2000
520 $aEl presente estudio fue conducido con el objetivo de investigar la presencia de diferentes formas de la Pep-B en razas bovinas y sus distancias geneticas, a partir de sus frecuencias alelicas. Fueron utilizads 1691 muestras de sangre de vacunos de origen Bos taurus taurus, pertenecientes a las razas especializadas (Frisona, Pardo-Suiza y Jersey), naturalizadas brasilenas (Pantaneira, Caracu y Mantiqueira) y argentina (Criollo Argentino) y razas de origen Bos taurus indicus (Nelore y Gir). En las razas Frisona, Pardo-Suiza, Jersey y Criollo Argentino, el locus Pep-B mostro ser monomorfico, con la fijacion del alelo Pep-B2. En las razas Pantaneira y Mantiqueira fueron observados los siguientes fenotipos: Pep-B2, Pep-B3, Pep-B1-2, Pep-B2-3 y Pep-B1-3 mientras que en las demas, los fenotipos fueron Pep-B1, Pep-B1-2, y Pep-B2. La presencia del alelo Pep-B3, en las razas Mantiqueira y pantaneira, sustenta la hipotesis de que, ese alelo, pueda ser marcador de razas ibericas, pues segun los datos historicos, ambas razas tuvieron en su origen la participacion de los bovinos oriundos de la Peninsula Iberica. El cluster formado por las razas Mantiqueira y pantaneira, refuerza la hipotesis de origen monofiletica y, por tanto esas razas pudieron tener un ancestro comum, probablemente el Bos taurus primigenius, introducido por los portuguses y espanoles durante la coloracion de America del Sur.
650 $aBrazil
650 $apolymorphism
650 $aBovino
650 $aGenética
650 $aPolimorfismo
653 $aBovine
653 $aBrasil
653 $aGenetic
653 $aRelacao
653 $aRelation
700 1 $aSERENO, J. R. B.
700 1 $aABREU, U. G. P.
700 1 $aCONTEL, E. P. B.
773 $tArchivos de Zootecnia$gv.49, n.185/186, p.31-37, 2000.
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Embrapa Pantanal (CPAP) |
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