Brazil Nut Oil: Quality Control via Triacylglycerol Profiles Provided by Easy Ambient Sonic-Spray Ionization Mass Spectrometry

Brazil nut oil is one of the important Amazonian natural products in the global market. Despite its health benefits and applications in food and cosmetic industries, authentication and quality control of the oil are far from satisfactory. Several samples of Amazonian Brazil nut oil (authentic oils o...

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Bibliographic Details
Published in:Journal of agricultural and food chemistry 2012-11, Vol.60 (45), p.11263-11267
Main Authors: Funasaki, Mariko, Oliveira, Reginaldo S, Zanotto, Sandra P, Carioca, Claudia R. F, Simas, Rosineide C, Eberlin, Marcos N, Alberici, Rosana M
Format: Article
Language:English
Subjects:
Bertholletia - chemistry
Biological and medical sciences
Fat industries
Food industries
Fundamental and applied biological sciences. Psychology
General aspects
Methods of analysis, processing and quality control, regulation, standards
Plant Oils - chemistry
Quality Control
Spectrometry, Mass, Electrospray Ionization - instrumentation
Spectrometry, Mass, Electrospray Ionization - methods
Triglycerides - chemistry
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Summary:Brazil nut oil is one of the important Amazonian natural products in the global market. Despite its health benefits and applications in food and cosmetic industries, authentication and quality control of the oil are far from satisfactory. Several samples of Amazonian Brazil nut oil (authentic oils of different geographic origins, commercial oils, and oils adulterated with soybean oil) were evaluated by easy ambient sonic-spray ionization mass spectrometry (EASI-MS). The samples were characterized on the basis of triacylglycerol profiles, and their major ions were subjected to chemometric treatment (principal component analysis). The ambient mass spectrometry analysis and the set of major ions allowed the characterization of authentic oils, commercial oils, and adulterated oils (5% soybean oil) in a few minutes and without sample preparation. Therefore, it is shown that quality control of Amazonian vegetable oils can be readily accomplished by EASI-MS.
ISSN:0021-8561
1520-5118
DOI:10.1021/jf303877t