Data/hora: 17/05/2024 01:24:23

Biblioteca(s): 	Embrapa Agroindústria de Alimentos.	
Data corrente: 	20/10/2017	
Data da última atualização: 	17/09/2018	
Autoria: 	CALDAS, T. W.; MAZZA, K. E. L.; TELES, A. S. C.; MATTOS, G. N.; BRIGIDA, A. I. S.; CONTE-JUNIOR, C. A.; BORGUINI, R. G.; GODOY, R. L. de O.; CABRAL, L. M. C.; TONON, R. V.	
Afiliação: 	Thais W. Caldas, UFRRJ; Karen E. L. Mazza, UFRJ; Aline S. C. Teles, UFRJ; Gabriela N. Mattos, UFRRJ; ANA IRAIDY SANTA BRIGIDA, CTAA; Carlos A. Conte-Junior, UFF; RENATA GALHARDO BORGUINI, CTAA; RONOEL LUIZ DE OLIVEIRA GODOY, CTAA; LOURDES MARIA CORREA CABRAL, CTAA; RENATA VALERIANO TONON, CTAA.	
Título: 	Phenolic compounds recovery from grape skin using conventional and non-conventional extraction methods.	
Ano de publicação: 	2018	
Fonte/Imprenta: 	Industrial Crops & Products, v. 111, p. 86-91, 2018.	
Idioma: 	Inglês	
Conteúdo: 	The aim of this work was to recover phenolic compounds from grape skin from sparkling production in the Brazilian semi-arid region, using conventional and non-conventional extraction methods Firstly, the effect of solid:liquid ratio (1:3?1:17) and ethanol concentration (8?92%) on the phenolic content and antioxidant capacity of grape skin extracts obtained by mechanical agitation were evaluated. Solid:liquid ratio of 1:10 and 50% ethanol were chosen as the most adequate conditions for phenolic compounds recovery. Then, in the selected conditions, extraction kinetics using ultrasound-assisted and microwave-assisted extractions were determined for comparison. Ultrasound-assisted extraction showed the best performance, resulting in an extract with a phenolic content twice higher than the obtained by mechanical agitation, in a very shorter time (9 min). Regarding phenolic profile, malvidin-3-O-glucoside was the main compound found in the extracts, followed by quercetin, rutin, catechin and epicatechin.	
Palavras-Chave: 	Antioxidant capacity; Mechanical agitation; Microwave; Phenolic compunds; Ultrasound.	
Categoria do assunto: 	X Pesquisa, Tecnologia e Engenharia	
Registro original: 	Embrapa Agroindústria de Alimentos (CTAA)	
Exemplares: 	CTAA - (13819-1) - UPC - AP - DD -  -  -  - DIS