Tropical Isabella grape juices: bioactive compounds and antioxidant power depends on harvest season.

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dc.contributorCinthia Baú Betim Cazarin, UNICAMP; LUIZ CLAUDIO CORREA, CPATSA; Juliana Kelly da Silva, UNICAMP; Angela Giovana Batista, UNICAMP; Cibele Priscila Busch Furlan, UNICAMP; Aline Camarão Telles Biasoto, CPATSA; GIULIANO ELIAS PEREIRA, CNPUV; ANA CECILIA POLONI RYBKA, CPATSA; Mário Roberto Maróstica Junior, UNICAMP.
dc.creatorCAZARIN, C. B. B.
dc.creatorCORREA, L. C.
dc.creatorSILVA, J. K. da
dc.creatorBATISTA, A. G.
dc.creatorFURLAN, C. P. B.
dc.creatorBIASOTO, A. C. T.
dc.creatorPEREIRA, G. E.
dc.creatorRYBKA, A. C. P.
dc.creatorMARÓSTICA JUNIOR, M. R.
dc.date2016-02-23T06:39:10Z
dc.date2016-02-23T06:39:10Z
dc.date2013-04-19
dc.date2013
dc.date2018-01-23T11:11:11Z
dc.date.accessioned2026-07-07T11:23:31Z
dc.descriptionGrapes 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.
dc.identifierJournal of Food Science and Engineering, El Monte, v. 3, n. 2, p. 64-70, fev. 2013.
dc.identifierhttp://www.alice.cnptia.embrapa.br/alice/handle/doc/956317
dc.identifier.urihttp://hdl.handle.net/123456789/506012
dc.languageeng
dc.rightsopenAccess
dc.subjectAtividade antioxidante
dc.subjectIsabel
dc.subjectViticultura
dc.subjectUva
dc.subjectSuco
dc.subjectNutrição
dc.subjectAnálise química
dc.subjectAntocianina
dc.subjectComposto Fenólico
dc.titleTropical Isabella grape juices: bioactive compounds and antioxidant power depends on harvest season.
dc.typeArtigo de periódico

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