Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/198256
Type: Artigo de periódico
Title: Amazonian Vegetable Oils And Fats: Fast Typification And Quality Control Via Triacylglycerol (tag) Profiles From Dry Matrix-assisted Laser Desorption/ionization Time-of-flight (maldi-tof) Mass Spectrometry Fingerprinting.
Author: Saraiva, Sérgio A
Cabral, Elaine C
Eberlin, Marcos N
Catharino, Rodrigo R
Abstract: Amazonian oils and fats display unique triacylglycerol (TAG) profiles and, because of their economic importance as renewable raw materials and use by the cosmetic and food industries, are often subject to adulteration and forgery. Representative samples of these oils (andiroba, Brazil nut, buriti, and passion fruit) and fats (cupuaçu, murumuru, and ucuúba) were characterized without pre-separation or derivatization via dry (solvent-free) matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS). Characteristic profiles of TAG were obtained for each oil and fat. Dry MALDI-TOF MS provides typification and direct and detailed information, via TAG profiles, of their variable combinations of fatty acids. A database from spectra could be developed and may be used for their fast and reliable typification, application screening, and quality control.
Subject: Bertholletia
Brazil
Fats
Fatty Acids
Food Contamination
Plant Oils
Plants
Quality Control
Spectrometry, Mass, Matrix-assisted Laser Desorption-ionization
Triglycerides
Citation: Journal Of Agricultural And Food Chemistry. v. 57, n. 10, p. 4030-4, 2009-May.
Rights: fechado
Identifier DOI: 10.1021/jf900043u
Address: http://www.ncbi.nlm.nih.gov/pubmed/19358529
Date Issue: 2009
Appears in Collections:Unicamp - Artigos e Outros Documentos

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