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Determination of Triacylglycerols, Fatty Acids and Total Lipid Content in Oil of 2 Macrotermitinaes Varieties from Congo

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Author(s): Victor N`Goka | Diane Julien-David

Journal: American Journal of Food Technology
ISSN 1557-4571

Volume: 7;
Issue: 4;
Start page: 238;
Date: 2012;
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Keywords: insects | total lipids | Bellicositermes natalensis | Macrotermitinae | Termitidae | Termite | triacylglycerol | fatty acids

ABSTRACT
The triacylglycerols and fatty acids composition of the oils of the Bellicositermes natalensis Haviland obtained from two different regions of Congo were qualitatively and quantitatively determined by gas chromatography/SM. This insects contained oil in the range of 48-53% dry matter, comparable with oleaginous plants like palm tree (45-50%), peanut (45-54%), more than soya (18-25%) and sunflower (22-50%). Levels of lipid content probably could be considered sufficient for economic industrial exploitation for every usage like humans consumption and medical usages. The pre-dominant triacylglycerol was palmitoyl-Oleoyl-Palmitoylglycerol (POP), 15.6-19.2%; followed by Palmitoyl-Oleoyl-Stearoylglycerol (POS), 14.6-18.1%, the minor were stearoyl-oleoyl-stearoylglycerol (SOS), 1.7-1.9%. The pre-dominant fatty acid was oleic (C18:1) and its content was about 57-60%, followed by palmitic acid (28-30%), stearic acid (9-11%), palmitoleic acid (3.5-4.0%), myristic acid (0.4%) and undetermined acid (0.2%). High qualitative similarity with butter fatty acids composition was observed and more, the content of this oil in monounsaturated fatty acids (60.5-62.5%), is near of the favourite olive oil which is 67.2%.
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