Título:	Whole, concentrated and reconstituted grape juice: impact of processes on phenolic composition, foxy aromas, organic acids, sugars and antioxidant capacity.
Autor:	DUTRA, M. DA C. P. VIANA, A. C. PEREIRA, G. E. NASSUR, R. de C. M. R. LIMA, M. S.
Afiliación:	MARIA DA CONCEIÇÃO PRUDÊNCIO DUTRA, Instituto Federal do Sertão Pernambucano, Campus Petrolina, Departamento de Tecnologia em Alimentos, Jardim São Paulo – CEP 56314-520, Petrolina, PE, Brazil ARÃO CARDOSO VIANA, Instituto Federal do Sertão Pernambucano, Campus Petrolina, Departamento de Tecnologia em Alimentos, Jardim São Paulo – CEP 56314-520, Petrolina, PE, Brazil GIULIANO ELIAS PEREIRA, CNPUV RITA DE CÁSSIA MIRELA RESENDE NASSUR, Instituto Federal do Sertão Pernambucano, Campus Ouricuri, Departamento de Agroindústria, Estrada do Tamboril s/n, Vila Quixadá CEP 56200-000, Ouricuri, PE, Brazil MARCOS dos SANTOS LIMA, Instituto Federal do Sertão Pernambucano, Campus Petrolina, Departamento de Tecnologia em Alimentos, Jardim São Paulo – CEP 56314-520, Petrolina, PE, Brazil.
Año:	2020
Referencia:	Food Chemistry, v. xx, p. 128399, 2020.
Descripción:	The concentration and reconstitution processes of grape juices can result in losing compounds associated with beverage quality. In this context, three tanks containing 50,000 L of grape juice were individually concentrated up to 68 °Brix using a triple vacuum concentrator. The concentrated juice was reconstituted up to the original °Brix of the whole juice (18.4). Phenolic compounds, sugars and organic acids were quantified by high-performance-liquid-chromatography. ?Foxy? aromatic compounds were also quantified by gas-chromatography/mass-spectrometry. The concentration and reconstitution process resulted in significant losses (Tukey test, p < 0.01) of trans-caftaric acid, decreasing from 397.08 to 159.14 mg/L, chlorogenic-acid from 34.97 to 8.44 mg/L, aromatic furaneol compound from 9.06 to 1.93 mg/L, as well as total losses for gallic-acid, caffeicacid, p-coumaric-acid, syringic-acid, hesperidin, pelargonidin-3-glucoside and epicatechin compounds. The concentration and reconstitution of grape juice preserved the antioxidant capacity and most of the quantified compounds, with the reconstituted juice having good nutritional quality.
NAL Thesaurus:	Grape juice Bioactive compounds Food processing Food composition
Palabras clave:	Functional beverages
DOI:	https://doi.org/10.1016/j.foodchem.2020.128399
Tipo de Material:	Artigo de periódico
Acceso:	openAccess
Aparece en las colecciones:	Artigo em periódico indexado (CNPUV)