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Type: Artigo de periódico
Title: Antioxidant Activity Of Grape Products And Characterization Of Components By Electrospray Ionization Mass Spectrometry
Author: de Oliveira D.N.
de Bona Sartor S.
Damario N.
Gollucke A.P.B.
Catharino R.R.
Abstract: Grapes are known for their health benefits and high antioxidant activity due to phenolic content. Our work provides metabolic fingerprints of three grape products, namely grape juice (GJ), grape juice concentrate (GJC) and grape skin extract powder (GSE). Using direct infusion electrospray ionization mass spectrometry (ESI-MS) and evaluating the relationship between total lphenolic content and antioxidant activity, it is possible to compare which product has the best effectiveness. Fingerprints of GJC and GSE showed similar characteristic distributions of resveratrol and pterostilbene in relatively significant abundances. GJC provided higher antioxidant activity/phenolic ratio; therefore, the identified phenolic compounds from GJC may offer enhanced antioxidant potential when compared to the other two samples (GJ and GSE). © 2013 Springer Science+Business Media New York.
Editor: Springer Verlag
Rights: fechado
Identifier DOI: 10.1007/s11694-013-9160-5
Date Issue: 2014
Appears in Collections:Unicamp - Artigos e Outros Documentos

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