Data/hora: 23/09/2024 12:59:14

Biblioteca(s): 	Embrapa Semiárido; Embrapa Uva e Vinho.	
Data corrente: 	19/04/2013	
Data da última atualização: 	24/04/2017	
Autoria: 	CAZARIN, C. B. B.; CORREA, L. C.; SILVA, J. K. da; BATISTA, A. G.; FURLAN, C. P. B.; BIASOTO, A. C. T.; PEREIRA, G. E.; RYBKA, A. C. P.; MARÓSTICA JUNIOR, M. R.	
Afiliação: 	LUIZ CLAUDIO CORREA, CPATSA; ALINE TELLES BIASOTO MARQUES, CPATSA; GIULIANO ELIAS PEREIRA, CNPUV / CPATSA; ANA CECILIA POLONI RYBKA, CPATSA.	
Título: 	Tropical Isabella grape juices: bioactive compounds and antioxidant power depends on harvest season.	
Ano de publicação: 	2013	
Fonte/Imprenta: 	Journal of Food Science and Engineering, El Monte v. 3, n. 2, p. 64-70, fev. 2013.	
Idioma: 	Inglês	
Conteúdo: 	Grapes are important sources of antioxidants compounds and one of the most used varieties to elaborate juices is 'Isabel', or 'Isabella', as it is called in North-America. This study aimed to evaluate the antioxidant activity of Isabella grape juices from the tropical semi-arid climate produced in Brazil on March and September, 2010. Total phenolics and anthocyanins were determined, as well as the antioxidant capacity by DPPH, FRAP and hydrophilic ORAC methods. Test T was used to compare statistical difference at 5% of significance level. As expected, the results showed that the season can play a significant role on phenolics content and antioxidant power. Polyphenols content in juices varied from 82.9 ± 0.92 to 102.2 ± 1.59 mg GAE 100 mL-1 and anthocyanins content ranged from 44.3 ± 2.01 to 129.5 ± 2.82 mg cyanidin-3-glucoside 100 mL-1. Regression analyses showed a high correlation of antioxidant capacity and anthocyanins content. Grapes from Sao Francisco River Valley demonstrated to be a good source of antioxidant for human diet.	
Palavras-Chave: 	Atividade antioxidante; Grape; Isabel.	
Thesagro: 	Análise química; Antocianina; Composto Fenólico; Nutrição; Suco; Uva; Viticultura; Vitis Vinifera.	
Categoria do assunto: 	--
F Plantas e Produtos de Origem Vegetal	
URL: 	http://ainfo.cnptia.embrapa.br/digital/bitstream/item/82421/1/Aline-2013.pdf
http://ainfo.cnptia.embrapa.br/digital/bitstream/item/81757/1/CASARIN-JFoodSciEng-v3n2p64-2013.pdf	
Registro original: 	Embrapa Semiárido (CPATSA)	
Exemplares: 	CNPUV - (14549-1) - UPC - AP - DD - Online -  -  - DIS
CPATSA - (50148-1) - UPC - AP - PP - 00819 -  - 00819 - DIS