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Type: Artigo de periódico
Title: Effect of extraction solvent on antiradical activity of the obtained propolis extracts
Author: Schmidt, EM
Santos, CDS
Stock, D
Finger, D
Baader, WJ
Caetano, IK
Quinaia, SP
Sawaya, ACHF
Eberlin, MN
Torres, YR
Abstract: Total phenolic, flavonoid and mineral contents and antiradical activity are usually used as a measure of propolis extract quality. The purpose of this study was to compare the quality of propolis extracts obtained with different solvents such as water, ethanolic solutions (30, 70, 95%, v/v in water) and edible vegetable oils (canola and soybean). LC-MS was used to identify constituents of the extracts. Antiradical activity was assayed using chemiluminescence from the luminol/hemin/H2O2/CTAB system and the DPPH test. Both antiradical assays were strongly correlated (r = -0.97). Principal Component Analysis indicated positive correlations for phenolics, flavonoid levels and antiradical activity showing that all phenolic compounds are important for the scavenging activity of Brazilian propolis. The extract obtained with ethanol 30% v/v had the highest antiradical activity mainly due to its high content of dicaffeoylquinic acids.
Subject: propolis
extract quality
antiradical activity
chemiluminescence reactions
principal components analysis
Country: País de Gales
Editor: Int Bee Research Assoc
Citation: Journal Of Apicultural Research. Int Bee Research Assoc, v. 53, n. 1, n. 91, n. 100, 2014.
Rights: aberto
Identifier DOI: 10.3896/IBRA.
Date Issue: 2014
Appears in Collections:Unicamp - Artigos e Outros Documentos

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