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Type: Artigo de periódico
Title: Fingerprinting of propolis by easy ambient sonic-spray ionization mass spectrometry
Author: Sawaya, ACHF
Abdelnur, PV
Eberlin, MN
Kumazawa, S
Ahn, MR
Bang, KS
Nagaraja, N
Bankova, VS
Afrouzan, H
Abstract: Chemical profiles of a representative set of 49 propolis ethanolic extracts collected worldwide (North and South America, Europe, Asia and Oceania) were obtained via easy ambient sonic-spray ionization mass spectrometry (EASI-MS). This simple and easily implemented fingerprinting technique analyses directly (without any pre-separation or sample manipulation) a tiny droplet of the ethanolic extract placed on a inert surface under ambient conditions. Data acquisition took about a minute per sample with no substantial sample carry-over. Extraction of propolis with ethanol by using an ultrasonic bath method gave EASI-MS data similar to the traditional maceration method, reducing total analysis time for the crude propolis resin from a week to just ca 1h. Principal component analysis of the EASI-MS data is shown to group samples according to the plant sources of their resins, which characterizes their geographical origin. (C) 2009 Elsevier B.V. All rights reserved.
Subject: Easy ambient sonic-spray ionization mass spectrometry Fingerprinting
Principal component analysis
Natural product extracts
Country: Holanda
Editor: Elsevier Science Bv
Citation: Talanta. Elsevier Science Bv, v. 81, n. 41671, n. 100, n. 108, 2010.
Rights: fechado
Identifier DOI: 10.1016/j.talanta.2009.11.043
Date Issue: 2010
Appears in Collections:Unicamp - Artigos e Outros Documentos

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