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Registro Completo |
Biblioteca(s): |
Embrapa Semiárido; Embrapa Uva e Vinho. |
Data corrente: |
20/08/2012 |
Data da última atualização: |
25/04/2022 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
CORREA, L. C.; BIASOTO, A. C. T.; SILVA, P. T. de S. e; PEREIRA, G. E.; RYBKA, A. C. P. |
Afiliação: |
LUIZ CLAUDIO CORREA, CPATSA; ALINE CAMARAO TELLES BIASOTO, CPATSA; PAULA TEREZA DE SOUZA E SILVA, CPATSA; GIULIANO ELIAS PEREIRA, CNPUV / CPATSA; ANA CECILIA POLONI RYBKA, CPATSA. |
Título: |
Development and validation of methodology for the determination of sugars in must, grape juice and different types of wine. |
Ano de publicação: |
2012 |
Fonte/Imprenta: |
In: WORLD CONGRESS OF FOOD SCIENCE AND TECHNOLOGY, 16.; LATIN AMERICAN SEMINAR OF FOOD SCIENCE AND TECHNOLOGY, 17., 2012, Foz do Iguaçu. Addressing global food security and wellness through food science and technology: abstracts. Foz do Iguaçu: ALACCTA, 2012. |
Descrição Física: |
1 CD-ROM. |
Idioma: |
Inglês |
Conteúdo: |
Sucrose is the main sugar translocated from leaves to fruit in vines, but glucose and fructose predominate in grape berry at all developmental stages. After sucrose inversion, the glucose can penetrate quicker to the metabolic pathways. Fermentation is carried out by different types of yeast, witch consume sugars transforming them into alcohol. A method was developed and validated by high performance liquid chromatography to quantify the glucose, fructose and sucrose present in grapes, grape juice and wine. The mobile phase was MilliQ® water, the flow rate 0.5mL.min-1, and detection was by refractive index. The must, grape juices, sweet and dry red wines, with and without chaptalization, white and late harvest dessert wines, were analyzed. The recovery of standards was between 80.44 and 108.22% for all samples and sugars analyzed, validating the method. Repeatability (CV%) was 0.68% for sucrose, 2.93% for glucose and 3.36% for fructose, and the intermediate precision ranged from 1.42 to 2.39%. The quantification curves for the three sugars analyzed were from 25-1600mg.L-1, with R2 ranging from 0.9997 to 0.9999. The sweet red wine without chapatalization, contained the most sucrose (93,01g.L-1), while the dessert wine conteined 255mg.L- 1. Sucrose was not detected in the must and grape juices (detection limit 4.77mg.L-1), but these samples stood out from the others for the fructose and glucose contents. The method was show to be precise and accurate for the quantification of sugars in musts, grape juices and wines. MenosSucrose is the main sugar translocated from leaves to fruit in vines, but glucose and fructose predominate in grape berry at all developmental stages. After sucrose inversion, the glucose can penetrate quicker to the metabolic pathways. Fermentation is carried out by different types of yeast, witch consume sugars transforming them into alcohol. A method was developed and validated by high performance liquid chromatography to quantify the glucose, fructose and sucrose present in grapes, grape juice and wine. The mobile phase was MilliQ® water, the flow rate 0.5mL.min-1, and detection was by refractive index. The must, grape juices, sweet and dry red wines, with and without chaptalization, white and late harvest dessert wines, were analyzed. The recovery of standards was between 80.44 and 108.22% for all samples and sugars analyzed, validating the method. Repeatability (CV%) was 0.68% for sucrose, 2.93% for glucose and 3.36% for fructose, and the intermediate precision ranged from 1.42 to 2.39%. The quantification curves for the three sugars analyzed were from 25-1600mg.L-1, with R2 ranging from 0.9997 to 0.9999. The sweet red wine without chapatalization, contained the most sucrose (93,01g.L-1), while the dessert wine conteined 255mg.L- 1. Sucrose was not detected in the must and grape juices (detection limit 4.77mg.L-1), but these samples stood out from the others for the fructose and glucose contents. The method was show to be precise and accurate for the quantification of ... Mostrar Tudo |
Palavras-Chave: |
Grapes vinifera; Suco de uva. |
Thesagro: |
Açúcar; Análise química; Enologia; Mosto; Sacarose; Suco; Uva; Vinho. |
Thesaurus Nal: |
Grapes; sucrose. |
Categoria do assunto: |
-- F Plantas e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/931636/1/DEVELOPMENT-AND-VALIDATION-OF-METHODOLOGY-2012.pdf
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Marc: |
LEADER 02587nam a2200313 a 4500 001 1931636 005 2022-04-25 008 2012 bl uuuu u00u1 u #d 100 1 $aCORREA, L. C. 245 $aDevelopment and validation of methodology for the determination of sugars in must, grape juice and different types of wine. 260 $aIn: WORLD CONGRESS OF FOOD SCIENCE AND TECHNOLOGY, 16.; LATIN AMERICAN SEMINAR OF FOOD SCIENCE AND TECHNOLOGY, 17., 2012, Foz do Iguaçu. Addressing global food security and wellness through food science and technology: abstracts. Foz do Iguaçu: ALACCTA$c2012 300 $c1 CD-ROM. 520 $aSucrose is the main sugar translocated from leaves to fruit in vines, but glucose and fructose predominate in grape berry at all developmental stages. After sucrose inversion, the glucose can penetrate quicker to the metabolic pathways. Fermentation is carried out by different types of yeast, witch consume sugars transforming them into alcohol. A method was developed and validated by high performance liquid chromatography to quantify the glucose, fructose and sucrose present in grapes, grape juice and wine. The mobile phase was MilliQ® water, the flow rate 0.5mL.min-1, and detection was by refractive index. The must, grape juices, sweet and dry red wines, with and without chaptalization, white and late harvest dessert wines, were analyzed. The recovery of standards was between 80.44 and 108.22% for all samples and sugars analyzed, validating the method. Repeatability (CV%) was 0.68% for sucrose, 2.93% for glucose and 3.36% for fructose, and the intermediate precision ranged from 1.42 to 2.39%. The quantification curves for the three sugars analyzed were from 25-1600mg.L-1, with R2 ranging from 0.9997 to 0.9999. The sweet red wine without chapatalization, contained the most sucrose (93,01g.L-1), while the dessert wine conteined 255mg.L- 1. Sucrose was not detected in the must and grape juices (detection limit 4.77mg.L-1), but these samples stood out from the others for the fructose and glucose contents. The method was show to be precise and accurate for the quantification of sugars in musts, grape juices and wines. 650 $aGrapes 650 $asucrose 650 $aAçúcar 650 $aAnálise química 650 $aEnologia 650 $aMosto 650 $aSacarose 650 $aSuco 650 $aUva 650 $aVinho 653 $aGrapes vinifera 653 $aSuco de uva 700 1 $aBIASOTO, A. C. T. 700 1 $aSILVA, P. T. de S. e 700 1 $aPEREIRA, G. E. 700 1 $aRYBKA, A. C. P.
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Registro original: |
Embrapa Semiárido (CPATSA) |
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Registro Completo
Biblioteca(s): |
Embrapa Pecuária Sul. |
Data corrente: |
08/03/2019 |
Data da última atualização: |
20/02/2020 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
B - 1 |
Autoria: |
SOUSA, B. M. de L.; SANTOS, M. E. R.; AMORIM, P. L. de; SILVEIRA, M. C. T. da; ROCHA, G. de O.; CARVALHO, A. N. de. |
Afiliação: |
Braulio Maia de Lana Sousa, UFS; Manoel Eduardo Rozalino Santos, UFU; Philipe Lima de Amorim, UFAL; MARCIA CRISTINA T DA SILVEIRA, CPPSUL; Gabriel de Oliveira Rocha, UFU; Angélica Nunes de Carvalho, UFU. |
Título: |
Effect of nitrogen fertilization on structure and tillering dynamics of Piata palisade grass during the deferment period. |
Ano de publicação: |
2019 |
Fonte/Imprenta: |
Semina: Ciências Agrárias, v. 40, n. 1, p. 249-258, jan./fev. 2019. |
Idioma: |
Inglês |
Conteúdo: |
Nitrogen fertilization can increase the appearance of new tillers, which can improve the structure of deferred sward, since the deferral period is not long. Thus, the objective of this study was to estimate the effects of nitrogen fertilization on structure and tillering dynamics of Piata palisade grass (Brachiaria brizantha cv. Piata) during deferment. We evaluated three nitrogen fertilization levels (none - 0 kg ha -1; medium - 75 kg ha -1; and high - 150 kg ha -1) associated with deferment periods (1, 30, 60, 90, and 120 days). The experimental design was set in completely randomised blocks in a split-plot arrangement, with three replications. The deferment period influenced foliage area index quadratically (p < 0.01) at all fertilization levels. The improvement in nitrogen fertilization levels increased light interception and reduced the foliage angle, but it did not affect tillering dynamics of Piata palisade grass during the deferment period. Appearance and mortality rates, the balance between tiller appearance and mortality and the stability index of the population of aerial and basal tillers of Piata palisade grass were higher at the beginning of the pasture deferment period. Nitrogen fertilization does not stimulate appearance of tillers on deferred Piata palisade grass. Tiller population stability, however, is only high at the beginning of deferment, decreasing after this initial period. Efeito da adubação nitrogenada na estrutura e dinâmica de perfilhamento do capim-piatã durante o período de diferimento A adubação nitrogenada pode aumentar o aparecimento de novos perfilhos, o que pode melhorar a estrutura do dossel forrageiro diferido, desde que o período de diferimento não seja longo. Dessa forma, objetivou-se estimar os efeitos da adubação nitrogenada na estrutura e dinâmica de perfilhamento do capim-piatã durante o diferimento. Foram avaliadas condições de adubação nitrogenada (ausente ? 0 kg ha -1, média - 75 kg ha -1 e alta - 150 kg ha -1) associadas aos períodos de diferimento (1, 30, 60, 90 e 120 dias). O delineamento experimental foi o de blocos completos casualizados, em esquema de parcelas subdivididas, com três repetições. O período de diferimento influenciou o índice de área da folhagem de forma quadrática (p < 0,01) em todas as condições de adubação. A melhoria da condição de adubação nitrogenada aumentou a interceptação de luz e reduziu o ângulo da folhagem, porém não influenciou a dinâmica do perfilhamento durante o período de diferimento do capim-piatã. As taxas de aparecimento e de mortalidade, o balanço entre o aparecimento e mortalidade de perfilhos, e o índice de estabilidade da população de perfilhos aéreos e basais do capim-piatã foram maiores no início do período de diferimento dos pastos. A adubação nitrogenada não estimula o aparecimento de perfilhos do capim-piatã diferido. Já a estabilidade da população de perfilhos é alta apenas no início do período de diferimento, não se mantendo após esse período inicial. MenosNitrogen fertilization can increase the appearance of new tillers, which can improve the structure of deferred sward, since the deferral period is not long. Thus, the objective of this study was to estimate the effects of nitrogen fertilization on structure and tillering dynamics of Piata palisade grass (Brachiaria brizantha cv. Piata) during deferment. We evaluated three nitrogen fertilization levels (none - 0 kg ha -1; medium - 75 kg ha -1; and high - 150 kg ha -1) associated with deferment periods (1, 30, 60, 90, and 120 days). The experimental design was set in completely randomised blocks in a split-plot arrangement, with three replications. The deferment period influenced foliage area index quadratically (p < 0.01) at all fertilization levels. The improvement in nitrogen fertilization levels increased light interception and reduced the foliage angle, but it did not affect tillering dynamics of Piata palisade grass during the deferment period. Appearance and mortality rates, the balance between tiller appearance and mortality and the stability index of the population of aerial and basal tillers of Piata palisade grass were higher at the beginning of the pasture deferment period. Nitrogen fertilization does not stimulate appearance of tillers on deferred Piata palisade grass. Tiller population stability, however, is only high at the beginning of deferment, decreasing after this initial period. Efeito da adubação nitrogenada na estrutura e dinâmica de perfilhamento do cap... Mostrar Tudo |
Palavras-Chave: |
Capim-piatã. |
Thesagro: |
Adubação; Brachiaria Brizantha; Pastagem. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/193821/1/Artigo-Semina-2019.pdf
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Marc: |
LEADER 03798naa a2200229 a 4500 001 2106799 005 2020-02-20 008 2019 bl uuuu u00u1 u #d 100 1 $aSOUSA, B. M. de L. 245 $aEffect of nitrogen fertilization on structure and tillering dynamics of Piata palisade grass during the deferment period.$h[electronic resource] 260 $c2019 520 $aNitrogen fertilization can increase the appearance of new tillers, which can improve the structure of deferred sward, since the deferral period is not long. Thus, the objective of this study was to estimate the effects of nitrogen fertilization on structure and tillering dynamics of Piata palisade grass (Brachiaria brizantha cv. Piata) during deferment. We evaluated three nitrogen fertilization levels (none - 0 kg ha -1; medium - 75 kg ha -1; and high - 150 kg ha -1) associated with deferment periods (1, 30, 60, 90, and 120 days). The experimental design was set in completely randomised blocks in a split-plot arrangement, with three replications. The deferment period influenced foliage area index quadratically (p < 0.01) at all fertilization levels. The improvement in nitrogen fertilization levels increased light interception and reduced the foliage angle, but it did not affect tillering dynamics of Piata palisade grass during the deferment period. Appearance and mortality rates, the balance between tiller appearance and mortality and the stability index of the population of aerial and basal tillers of Piata palisade grass were higher at the beginning of the pasture deferment period. Nitrogen fertilization does not stimulate appearance of tillers on deferred Piata palisade grass. Tiller population stability, however, is only high at the beginning of deferment, decreasing after this initial period. Efeito da adubação nitrogenada na estrutura e dinâmica de perfilhamento do capim-piatã durante o período de diferimento A adubação nitrogenada pode aumentar o aparecimento de novos perfilhos, o que pode melhorar a estrutura do dossel forrageiro diferido, desde que o período de diferimento não seja longo. Dessa forma, objetivou-se estimar os efeitos da adubação nitrogenada na estrutura e dinâmica de perfilhamento do capim-piatã durante o diferimento. Foram avaliadas condições de adubação nitrogenada (ausente ? 0 kg ha -1, média - 75 kg ha -1 e alta - 150 kg ha -1) associadas aos períodos de diferimento (1, 30, 60, 90 e 120 dias). O delineamento experimental foi o de blocos completos casualizados, em esquema de parcelas subdivididas, com três repetições. O período de diferimento influenciou o índice de área da folhagem de forma quadrática (p < 0,01) em todas as condições de adubação. A melhoria da condição de adubação nitrogenada aumentou a interceptação de luz e reduziu o ângulo da folhagem, porém não influenciou a dinâmica do perfilhamento durante o período de diferimento do capim-piatã. As taxas de aparecimento e de mortalidade, o balanço entre o aparecimento e mortalidade de perfilhos, e o índice de estabilidade da população de perfilhos aéreos e basais do capim-piatã foram maiores no início do período de diferimento dos pastos. A adubação nitrogenada não estimula o aparecimento de perfilhos do capim-piatã diferido. Já a estabilidade da população de perfilhos é alta apenas no início do período de diferimento, não se mantendo após esse período inicial. 650 $aAdubação 650 $aBrachiaria Brizantha 650 $aPastagem 653 $aCapim-piatã 700 1 $aSANTOS, M. E. R. 700 1 $aAMORIM, P. L. de 700 1 $aSILVEIRA, M. C. T. da 700 1 $aROCHA, G. de O. 700 1 $aCARVALHO, A. N. de 773 $tSemina: Ciências Agrárias$gv. 40, n. 1, p. 249-258, jan./fev. 2019.
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