Integrative Approach Using GC-MS and Easy Ambient Sonic-Spray IonizationMass Spectrometry (EASI-MS) for Comprehensive Lipid Characterization of Buriti(Mauritia flexuosa) Oil

Journal of the Brazilian Chemical Society

Giovana A. Bataglion¹  Felipe M. A. Da Silva¹  Jandyson M. Santos¹  Milene T. Barcia¹  Helena T. Godoy¹  Marcos N. Eberlin¹  Hector H. F. Koolen¹ 

关键词: buriti oil;    fatty acids;    triacylglycerides;    mass spectrometry;    Amazonian resources;    lipids;   

DOI  :  10.5935/0103-5053.20140234

来源: SciELO

【 摘 要 】

Buriti (Mauritia flexuosa L. f.) is a palm widely distributed in theAmazon Rain Forest of Brazil. Oil is extracted from buriti fruit and popularly usedas a food resource and for medicinal purposes. Herein we report the use of anintegrative approach based on mass spectrometry (MS) techniques comprising gaschromatography coupled to electron ionization mass spectrometry (GC-MS) and easyambient sonic-spray ionization mass spectrometry (EASI-MS) with the objective toprovide comprehensive lipid characterization of buriti oil. GC-MS analysis revealedthe presence of many fatty acids (oleic, palmitic and linoleic), sterols beyond α-and β-tocopherol in buriti oil. EASI-MS allowed the characterization of fatty acidsand many triaclyglycerides (TAG) in the negative and positive ion mode, respectively.Additionally, the antioxidant capacity (AC) was measured by the oxygen radicalabsorbance capacity assay (ORAC); this test was carried with the lipophilic andhydrophilic fractions of the buriti oil. Results revealed a lypophilic antioxidantcapacity (LAC) of 1.8 ± 0.01 and hydrophilic antioxidant capacity (HAC) of 8.3 ± 0.01μmol Trolox equivalents (TE) g−1 indicating that the buriti oil comprisesa reliable source of antioxidant compounds that can be more explored for foodpurposes.

【 授权许可】

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