Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/106565
Type: Artigo de periódico
Title: Antioxidant Activity Of Caryocar Brasiliense (pequi) And Characterization Of Components By Electrospray Ionization Mass Spectrometry
Author: Roesler R.
Catharino R.R.
Malta L.G.
Eberlin M.N.
Pastore G.
Abstract: The Caryocar brasiliense known commonly as pequi is a tropical fruit of Brazilian Cerrado and is considered an important option of income and food for the populations living in this biome. Our previous study indicated that C. brasiliense had high total phenol content (209 g as gallic acid equivalent kg-1) and excellent scavenging activity against 2,2-diphenyl-1-picrylhydrazyl radical (IC50 of 9.44 μg ml-1). In this study, we evaluated the highly efficient antioxidant activity of C. brasiliense using the biological relevant method of chemically induced lipid peroxidation. The half inhibition concentration did not exceed 0.8 μg ml-1. In addition, polar components of pequi ethanolic extract were investigated by direct infusion electrospray ionization mass spectrometry (ESI-MS). The technique revealed the presence of important bioactive components widely reported as potent antioxidants such as gallic acid, quinic acid, quercetin, and quercetin 3-O-arabinose possibly explaining its higher antioxidant activity. This is the first report on the composition by ESI-MS of pequi extract demonstrating excellent antioxidant activity. © 2008 Elsevier Ltd. All rights reserved.
Editor: 
Rights: fechado
Identifier DOI: 10.1016/j.foodchem.2008.02.048
Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-43049106417&partnerID=40&md5=2a7ee1f5a8a76ff3abf686b24d7a5a27
Date Issue: 2008
Appears in Collections:Unicamp - Artigos e Outros Documentos

Files in This Item:
File SizeFormat 
2-s2.0-43049106417.pdf193.08 kBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.