Data/hora: 01/06/2024 16:30:55

Biblioteca(s): 	Embrapa Semiárido; Embrapa Uva e Vinho.	
Data corrente: 	09/01/2020	
Data da última atualização: 	09/01/2020	
Autoria: 	OLIVEIRA, J. B. de; EGIPTO, R.; LAUREANO, O.; CASTRO, R. de; PEREIRA, G. E.; RICARDO-DA-SILVA, J. M.	
Afiliação: 	Juliane Barreto de Oliveira, LEAF-Linking Landscape, Environment, Agriculture and Food, Instituto Superior de Agronomia, Universidade de Lisboa,Tapada da Ajuda, Lisboa 1349-017, Portugal; Ricardo Egipto, INIAV, I. P., Pólo de Dois Portos, Quinta da Almoínha, Dois Portos 2565-191, Portugal; Olga Laureano, LEAF-Linking Landscape, Environment, Agriculture aNd Food, Instituto Superior de Agronomia, Universidade de Lisboa,Tapada da Ajuda,Lisboa 1349-017, Portugal; Rogério de Castro, LEAF-LinkingLandscape,Environment,AgricultureandFood,InstitutoSuperiordeAgronomia,UniversidadedeLisboa,TapadadaAjuda,Lisboa1349-017,Portugal; GIULIANO ELIAS PEREIRA, CNPUV; Jorge Manuel Ricardo-da-Silva, LEAF-LinkingLandscape,Environment,AgricultureandFood,InstitutoSuperiordeAgronomia,UniversidadedeLisboa,TapadadaAjuda,Lisboa1349-017,Portu.	
Título: 	Climate effects on physicochemical composition of Syrah grapes at low and high altitude sites from tropical grown regions of Brazil.	
Ano de publicação: 	2019	
Fonte/Imprenta: 	Food Research International, v. 121, p. 870-879, 2019.	
DOI: 	https://doi.org/10.1016/j.foodres.2019.01.011	
Idioma: 	Inglês	
Conteúdo: 	The major areas of the world where viticulture is practiced enjoy temperate or cool temperature climates. When wine grapes are grown in tropical regions, edaphoclimatic factors result in distinct grape quality attributes, and production techniques also require significant adjustment. The objective of this study was to characterize the chemical compositions, in particular of phenolic compounds, of Syrah grapes grown in two location in northeast Brazil - these are also at widely different altitudes. A range of methods of phenolic extraction were used, along with classical chemical analyses including for organic acids, sugars, monomeric anthocyanins, flavonols, stilbene, condensed tannins and some of the monomeric and small oligomeric procyanidins. The regions and their diverse environments had a larger influence than harvest year. The grapes at higher altitude (Bahia, 1.100&#8239;m asl (metres above sea level) were characterized by higher levels of malic acid, anthocyanins and condensed tannins in the skins. The low-altitude grapes (Pernambuco, 350&#8239;m asl (metres above sea level) had higher levels of glucose, fructose, 3-O-acetylglucoside anthocyanins and condensed tannins in the seeds. Fruit composition was highly influenced by the region. In the low-altitude region, the grapes were characterized by higher tartaric and citric acid in the must, also of flavonols in skins and of tannins in the seeds. Meanwhile, the fruit from the high altitude, contained higher levels of malic and succinic acid in the must, and of anthocyanins and condensed tannins in the skins.	
Palavras-Chave: 	Organic acids; Região tropical; Tropical region; Vitis vinifera L.	
Thesagro: 	Ácido Orgânico; Açúcares; Composto Fenólico; Uva; Vitis Vinifera.	
Thesaurus Nal: 	Phenolic compounds; Sugars.	
Categoria do assunto: 	--
X Pesquisa, Tecnologia e Engenharia	
URL: 	http://ainfo.cnptia.embrapa.br/digital/bitstream/item/208381/1/1-s2.0-S0963996919300110-main.pdf	
Registro original: 	Embrapa Uva e Vinho (CNPUV)	
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