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Registro Completo |
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Biblioteca(s): |
Embrapa Semiárido; Embrapa Uva e Vinho. |
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Data corrente: |
06/07/2012 |
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Data da última atualização: |
24/04/2017 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
MOTA, R. V. da; SOUZA, C. R. de; PEREIRA, G. E.; DAL'OSTO, M. C.; CORREA, L. C.; DIAS, F. A. N.; PIMENTEL, R. M. de A.; TAVARES, M. C.; REGINA, M. de A. |
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Afiliação: |
Renata Vieira da MOTA, Núcleo Tecnológico EPAMIG Uva e Vinho; Claudia Rita de SOUZA, Núcleo Tecnológico EPAMIG Uva e Vinho; GIULIANO ELIAS PEREIRA, CNPUV / CPATSA; Marite Carlin DAL'OSTO, Núcleo Tecnológico EPAMIG Uva e Vinho; Luis Claudio CORREA, CPATSA; Frederico Alcântara Novelli DIAS, Departamento de Agricultura, Universidade Federal de Lavras; Rodrigo Meirelles de AZEVEDO PIMENTEL, Núcleo Tecnológico EPAMIG Uva e Vinho; Marilia Claudiano TAVARES, Bolsista BIC Junior EPAMIG/FAPEMIG; Murillo de ALBUQUERQUE REGINA, Núcleo Tecnológico EPAMIG Uva e Vinho. |
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Título: |
Characterization of grapes and wines of Syrah growing during the autumn-winter season in different viticultural zones of the Brazilian Southeast. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
In: CONGRES DES TERROIRS VITIVINICOLES, 9., 2012, Bourgogne. Actes... Bourgogne: Université de Bourgogne, 2012. |
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Páginas: |
p. 45-48. |
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Idioma: |
Português |
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Conteúdo: |
Double pruning management has allowed harvesting good quality wine grapes during the winter season in the Brazilian southeast. Syrah cultivar showed the best response to the modification of grapevine cycle with good maturation and acceptable productivity indices. As a new winegrowing region, little is known about the terroir effects on the composition of Syrah berries and wines. This study was carried out with Syrah vines grafted on 1103P grown in commercial vineyards established in four southeast zones of Brazil: Espirito Santo do Pinhal at 871 m height, Itobi at 811 m, Três Corações at 993 m and Caldas at 1150 m. The vines were trained on vertical shoot position and pruned in January to harvest grapes in the winter season. The highest yield was obtained in Três Corações (9,780 kg.ha-1), followed by Caldas, Pinhal and Itobi. High bud fertility and berries? weight and size contributed to highest yield at Três Corações and Caldas. Grapes grown in Pinhal at 21.5°C of average berry temperature and thermal amplitude of 16.8°C showed higher total soluble solids (23.2°Brix) than the berries harvested in the other viticultural zones (20°Brix). These vines also showed the highest photosynthetic and transpiration rates. Berries harvested at Caldas showed the greatest must acidity probably due to lowest average temperature of the berries (19.2°C) which impairs acid degradation. Berries harvested at Itobi and Três Corações showed higher phenolic compounds and anthocyanins content. The wine from Pinhal showed an alcoholic grade of 15° GL while wine from Caldas had the lowest grade (11°GL). Wines from Três Corações and Pinhal showed the highest polymerized pigments index and color intensity after 16 months aging. Wine tipicity was also evaluated by sensorial analyses in which wines from Caldas showed the lowest scores in hedonic scale. These data showed that it was possible to identify different Syrah winemaking zones in Brazilian southeast. MenosDouble pruning management has allowed harvesting good quality wine grapes during the winter season in the Brazilian southeast. Syrah cultivar showed the best response to the modification of grapevine cycle with good maturation and acceptable productivity indices. As a new winegrowing region, little is known about the terroir effects on the composition of Syrah berries and wines. This study was carried out with Syrah vines grafted on 1103P grown in commercial vineyards established in four southeast zones of Brazil: Espirito Santo do Pinhal at 871 m height, Itobi at 811 m, Três Corações at 993 m and Caldas at 1150 m. The vines were trained on vertical shoot position and pruned in January to harvest grapes in the winter season. The highest yield was obtained in Três Corações (9,780 kg.ha-1), followed by Caldas, Pinhal and Itobi. High bud fertility and berries? weight and size contributed to highest yield at Três Corações and Caldas. Grapes grown in Pinhal at 21.5°C of average berry temperature and thermal amplitude of 16.8°C showed higher total soluble solids (23.2°Brix) than the berries harvested in the other viticultural zones (20°Brix). These vines also showed the highest photosynthetic and transpiration rates. Berries harvested at Caldas showed the greatest must acidity probably due to lowest average temperature of the berries (19.2°C) which impairs acid degradation. Berries harvested at Itobi and Três Corações showed higher phenolic compounds and anthocyanins content. The ... Mostrar Tudo |
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Palavras-Chave: |
Brasil; Espírito Santo; Syrah; Terroir; Wine. |
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Thesagro: |
Brotação; Fisiologia vegetal; Fotossíntese; Poda; Uva; Variedade; Vinho; 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/130927/1/49582.pdf
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Marc: |
LEADER 03105nam a2200385 a 4500
001 1950558
005 2017-04-24
008 2012 bl uuuu u00u1 u #d
100 1 $aMOTA, R. V. da
245 $aCharacterization of grapes and wines of Syrah growing during the autumn-winter season in different viticultural zones of the Brazilian Southeast.$h[electronic resource]
260 $aIn: CONGRES DES TERROIRS VITIVINICOLES, 9., 2012, Bourgogne. Actes... Bourgogne: Université de Bourgogne$c2012
300 $ap. 45-48.
520 $aDouble pruning management has allowed harvesting good quality wine grapes during the winter season in the Brazilian southeast. Syrah cultivar showed the best response to the modification of grapevine cycle with good maturation and acceptable productivity indices. As a new winegrowing region, little is known about the terroir effects on the composition of Syrah berries and wines. This study was carried out with Syrah vines grafted on 1103P grown in commercial vineyards established in four southeast zones of Brazil: Espirito Santo do Pinhal at 871 m height, Itobi at 811 m, Três Corações at 993 m and Caldas at 1150 m. The vines were trained on vertical shoot position and pruned in January to harvest grapes in the winter season. The highest yield was obtained in Três Corações (9,780 kg.ha-1), followed by Caldas, Pinhal and Itobi. High bud fertility and berries? weight and size contributed to highest yield at Três Corações and Caldas. Grapes grown in Pinhal at 21.5°C of average berry temperature and thermal amplitude of 16.8°C showed higher total soluble solids (23.2°Brix) than the berries harvested in the other viticultural zones (20°Brix). These vines also showed the highest photosynthetic and transpiration rates. Berries harvested at Caldas showed the greatest must acidity probably due to lowest average temperature of the berries (19.2°C) which impairs acid degradation. Berries harvested at Itobi and Três Corações showed higher phenolic compounds and anthocyanins content. The wine from Pinhal showed an alcoholic grade of 15° GL while wine from Caldas had the lowest grade (11°GL). Wines from Três Corações and Pinhal showed the highest polymerized pigments index and color intensity after 16 months aging. Wine tipicity was also evaluated by sensorial analyses in which wines from Caldas showed the lowest scores in hedonic scale. These data showed that it was possible to identify different Syrah winemaking zones in Brazilian southeast.
650 $aGrapes
650 $aBrotação
650 $aFisiologia vegetal
650 $aFotossíntese
650 $aPoda
650 $aUva
650 $aVariedade
650 $aVinho
650 $aViticultura
653 $aBrasil
653 $aEspírito Santo
653 $aSyrah
653 $aTerroir
653 $aWine
700 1 $aSOUZA, C. R. de
700 1 $aPEREIRA, G. E.
700 1 $aDAL'OSTO, M. C.
700 1 $aCORREA, L. C.
700 1 $aDIAS, F. A. N.
700 1 $aPIMENTEL, R. M. de A.
700 1 $aTAVARES, M. C.
700 1 $aREGINA, M. de A.
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Registro original: |
Embrapa Semiárido (CPATSA) |
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Registro Completo
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
12/01/2009 |
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Data da última atualização: |
06/04/2022 |
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Tipo da produção científica: |
Artigo em Anais de Congresso / Nota Técnica |
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Autoria: |
NOVOTNY, E. H.; HAYES, M. H. B.; SONG, G.; AZEVEDO, E. R. de; BONAGAMBA, T. |
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Afiliação: |
ETELVINO HENRIQUE NOVOTNY, CNPS; MICHAEL HILARY B. HAYES, UNIVERSITY OF LIMERICK; GUIXUE SONG, UNIVERSITY OF LIMERICK; EDUARDO RIBEIRO DE AZEVEDO, USP; TITO JOSÉ BONAGAMBA, USP. |
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Título: |
Extraction and characterisation of humin fraction from Amazonian anthropogenic dark earth soils ("Terra Preta de Indios"). |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
In: INTERNATIONAL MEETING OF THE INTERNATIONAL HUMIC SUBSTANCES SOCIETY, 14., 2008, Saint Petersburg. From molecular understanding to innovative applications of humic substances: proceedings... Moscow: Lomonosov Moscow State University, 2008. v. 1, p. 105-108. |
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Idioma: |
Inglês |
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Conteúdo: |
Humin, the humic fraction that is insoluble in water at all pH values, typically comprises more than 50% of soil organic matter (1). Because of the difficulties in isolation, humin compositions and properties have been less extensively studied than those of humic and fulvic acids (2). On the basis of the accepted definition, humin can include any humic-type substances that are not dissolv ed during exhaustive extractions with aqueous base. A solvent system composed of a mixture of aqueous base/urea (0.1 M NaOH + 6 M urea, base/urea) has been reported to isolate material that would be classified as humin in the classical definition (3, 4, 5). Because urea is a powerful hydrogen bond breaker, it is considered that soil organic components were released from associations with humin materials either by the breaking of hydrogen bonds, or by the disruption of steric constraints by materials that had trapped the components released. Dimethylsulfoxide (DMSO), a dipolar aprotic solvent, is an excellent solvent for cations but a poor solvent for anions (6). It is a good hydrogen bond breaker and the non- polar backbone (as distinct from the S=O face) of DMSO can be considered to have affinities for less polar humin components. A solvent mixture of DMSO with HCl (6%, v/v) was reported to have isolated less than 22% of humin material from soils (7, 8, 9). However H 2SO4 is a very polar liquid with a high dielectric constant (~100), and due to the process of autoprotolysis (10), protons are highly mobile in H 2SO4. This enables it to protonate the conjugate bases (carboxylates and phenolates), thereby increasing the solubility of the organic material (4, 5), since anions are weakly solvated in DMSO. MenosHumin, the humic fraction that is insoluble in water at all pH values, typically comprises more than 50% of soil organic matter (1). Because of the difficulties in isolation, humin compositions and properties have been less extensively studied than those of humic and fulvic acids (2). On the basis of the accepted definition, humin can include any humic-type substances that are not dissolv ed during exhaustive extractions with aqueous base. A solvent system composed of a mixture of aqueous base/urea (0.1 M NaOH + 6 M urea, base/urea) has been reported to isolate material that would be classified as humin in the classical definition (3, 4, 5). Because urea is a powerful hydrogen bond breaker, it is considered that soil organic components were released from associations with humin materials either by the breaking of hydrogen bonds, or by the disruption of steric constraints by materials that had trapped the components released. Dimethylsulfoxide (DMSO), a dipolar aprotic solvent, is an excellent solvent for cations but a poor solvent for anions (6). It is a good hydrogen bond breaker and the non- polar backbone (as distinct from the S=O face) of DMSO can be considered to have affinities for less polar humin components. A solvent mixture of DMSO with HCl (6%, v/v) was reported to have isolated less than 22% of humin material from soils (7, 8, 9). However H 2SO4 is a very polar liquid with a high dielectric constant (~100), and due to the process of autoprotolysis (10), protons a... Mostrar Tudo |
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Palavras-Chave: |
black carbon; indios; NMR; pyrogenic carbon. |
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Thesaurus NAL: |
humin; terra preta. |
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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/doc/334758/1/Extraction-and-characterization-of-humin-fraction-2008.pdf
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Marc: |
LEADER 02605nam a2200229 a 4500
001 1334758
005 2022-04-06
008 2008 bl uuuu u00u1 u #d
100 1 $aNOVOTNY, E. H.
245 $aExtraction and characterisation of humin fraction from Amazonian anthropogenic dark earth soils ("Terra Preta de Indios").$h[electronic resource]
260 $aIn: INTERNATIONAL MEETING OF THE INTERNATIONAL HUMIC SUBSTANCES SOCIETY, 14., 2008, Saint Petersburg. From molecular understanding to innovative applications of humic substances: proceedings... Moscow: Lomonosov Moscow State University, 2008. v. 1, p. 105-108.$c2008
520 $aHumin, the humic fraction that is insoluble in water at all pH values, typically comprises more than 50% of soil organic matter (1). Because of the difficulties in isolation, humin compositions and properties have been less extensively studied than those of humic and fulvic acids (2). On the basis of the accepted definition, humin can include any humic-type substances that are not dissolv ed during exhaustive extractions with aqueous base. A solvent system composed of a mixture of aqueous base/urea (0.1 M NaOH + 6 M urea, base/urea) has been reported to isolate material that would be classified as humin in the classical definition (3, 4, 5). Because urea is a powerful hydrogen bond breaker, it is considered that soil organic components were released from associations with humin materials either by the breaking of hydrogen bonds, or by the disruption of steric constraints by materials that had trapped the components released. Dimethylsulfoxide (DMSO), a dipolar aprotic solvent, is an excellent solvent for cations but a poor solvent for anions (6). It is a good hydrogen bond breaker and the non- polar backbone (as distinct from the S=O face) of DMSO can be considered to have affinities for less polar humin components. A solvent mixture of DMSO with HCl (6%, v/v) was reported to have isolated less than 22% of humin material from soils (7, 8, 9). However H 2SO4 is a very polar liquid with a high dielectric constant (~100), and due to the process of autoprotolysis (10), protons are highly mobile in H 2SO4. This enables it to protonate the conjugate bases (carboxylates and phenolates), thereby increasing the solubility of the organic material (4, 5), since anions are weakly solvated in DMSO.
650 $ahumin
650 $aterra preta
653 $ablack carbon
653 $aindios
653 $aNMR
653 $apyrogenic carbon
700 1 $aHAYES, M. H. B.
700 1 $aSONG, G.
700 1 $aAZEVEDO, E. R. de
700 1 $aBONAGAMBA, T.
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Embrapa Solos (CNPS) |
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