Title:	Phenolic composition of skins and pulps of grapes for traditional sparkling wines in the Northeast of Brazil.
Authors:	NASCIMENTO, A. SOUZA, J. de FREITAS, S. CORREA, L. C. PEREIRA, G. E.
Affiliation:	ANTÔNIO NASCIMENTO, UNIVERSIDADE DO ESTADO DA BAHIA; JOYCE DE SOUZA, UNIVERSIDADE DO ESTADO DA BAHIA; SABRINA FREITAS, UNIVERSIDADE DO ESTADO DA BAHIA; LUIZ CLAUDIO CORREA, CPATSA; GIULIANO ELIAS PEREIRA, CNPUV / CPATSA.
Date Issued:	2017
Citation:	In: GiESCO INTERNATIONAL MEETING, 20., 2017, Mendonza, Argentina. Book of full manuscripts... Mendonza, Argentina: GiESCO, 2017.
Pages:	p. 1081-1087.
Description:	Among the compounds contributing to the grape and wine qualiries, phenolics play an importam role. Therefore the objective of this study was to determine the phenolic compounds of skins and pulps of white and red grapes at harvest, destined to traditional sparkling from producing tropical wines in the Northeast of Brazil. Chenin Blanc and Syrah were harvested in June 2015 in the São Francisco Valley, at 350 m of altitude while Chardonnay and Pinot Noir grapes were harvested in Septernber 2015 in the Chapada Diamanrina-Bahia State ar 1.100 m of altitude. Twenty phenolics were detennined by HPLC in skins anel pulps separated manually and extracted using ethanol, each sample composed by 50 berries lu triplicate. lu lhe pulps of the white quercetin- 3-glucosíde (ftavoeol) was lhe mosr concentrarcd compound in Chardonnay mg while 111 Cbeniu Blanc was lhe gaíic acíd (025 mg Kg-J ), [11 lhe reá cultivars, lhe mos! concenrrated compound determined in the pulps 01' Pinot Noir was quercerin-Lglucoside (189 mg Kg'), while in Syrah was epigallocatechin gallate (flavanol) (031 mg Kg·i ) In Chenin Blanc and skins, the 1110St eoncemrared compound was quercetin-Svglucoside (9.20 and 12930 mg . respectively). lu rhe red grapes. lhe most concentrated compound was also lhe same for Pinot Noir and Syrab. lhe malvidin-Sglucoside anthocyanin (25413 and 649.13 mg Kg·t• respectively). It is interesting 10 highlight that no! on.l~ cultivar eífeci collaboeared to lhe pbenolic profiles, but also the geographic localizatica 01' the winegrcwing arcas . Among the compounds contributing to the grape and wine qualities, phenolics play an important role.
Thesagro:	Vitis vinífera Uva
NAL Thesaurus:	Phenolic compounds
Keywords:	Videira Grape HPLC
Type of Material:	Artigo em anais e proceedings
Access:	openAccess
Appears in Collections:	Artigo em anais de congresso (CPATSA)