Determination of the triacylglycerol content for the identification and assessment of purity of shea butter fat, peanut oil, and palm kernel oil using maldi-tof/tof mass spectroscopic technique
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Date
2016
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International Journal of Food Properties
Abstract
This article reports the rapid screening and identification of the triacylglycerol
content of shea butter fat, palm kernel oil, and peanut oil sold in the local
Ghanaian market for their characterization and identification. Samples were
dissolved in chloroform with 2,5-dihydroxybenzoic acid as the matrix. After
subjecting the samples to matrix-assisted laser desorption ionization-time-
offlight/ mass spectrometry, the spectra obtained showed the characteristic
triacylglycerols as sodium adducts. Seven major triacylglycerol species
were identified as dipalmitoyl olein, palmitoyl diolein, palmitoyl stearoyl olein,
linoleoyl diolein, triolein, stearoyl diolein, and distearoyl olein in all three
samples.Palmitoyl linoleoyl olein and tristearin were also identified.
Oxygenated triacylglycerols and other species from the fragmentation of
triacylglycerols were also obtained. The presence of the oxygenated
triacylglycerols and the triacylglycerolfragments may be a result of poor
handling and production processes.
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This article is published by International Journal of Food Properties
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Citation
M. Seidu-Makinca, S. A. Saah, N. O. Boadi, M. Badu, M. B. Mensah and J. A. M. Awudza. Characterization of latex from trees in the Bobiri forest of Ghana. Current Science Perspectives 5(3) (2019) 40-47