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Type: Artigo de periódico
Title: Electrospray ionization mass spectrometry fingerprinting of essential oils: Spices from the Labiatae family
Author: Moller, JKS
Catharino, RR
Eberlin, MN
Abstract: Polar components of the methanolic extracts of the essential oils of the spices Origanum dictamnus, Origanum vulgare, Origanum majorana and Rosmarinus officinalis, all four belonging to the Labiatae family, were investigated by direct infusion electrospray ionisation mass spectrometry (ESI-MS) both in the negative and positive ion modes. Characteristic ESI mass spectra with many diagnostic ions were obtained for the extracts of all four spices, serving for fast and reliable identification of these species. Tandem mass spectrometry (ESI-MS/MS), which often forms a series of fragment ions, and this additional MS dimension increases selectivity for authenticity and adulteration tests for spice essential oils. The MS technique also provides complementary information of component structures revealing the presence of important bioactive components. (c) 2005 Elsevier Ltd. All rights reserved.
Subject: electrospray ionisation mass spectrometry fingerprinting
Labiatae family spices
charged components
natural antioxidants characterisation
structural elucidation
proof of authenticity
Country: Inglaterra
Editor: Elsevier Sci Ltd
Citation: Food Chemistry. Elsevier Sci Ltd, v. 100, n. 3, n. 1283, n. 1288, 2007.
Rights: fechado
Identifier DOI: 10.1016/j.foodchem.2005.10.013
Date Issue: 2007
Appears in Collections:Unicamp - Artigos e Outros Documentos

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