Soybean genotype, fatty acid composition

Soybeans contain about 20% oil on dry basis. Refined soybean oil contains more than 99% TAG. There are large variations in the fatty acid composition of soybean oil obtained from different genotyped and beans grown under different agronomic conditions. The reported range of main fatty acids are as follows C16 0, 8-17% C18 0, 3-30% C18 l, 25-60% C18 2, 25-60% and C18 3, 2-15% (Hammond and Glatz, 1989). Soybean oil contains health beneficial lipid soluble vitamins and phytosterols. Crude soybean oil contains about 2mg/kg vitamin or phyUoquinone, which have blood coagulation properties (Piironen et al., 1997). Tocopherols and phytosterols comprise 0.12 and 0.24% of the crude oil (Mounts et al., 1996). 

Oliva, M.L. J.G. Shannon D.A. Sleper M.R. Ellersieck A.J. Cardinal R.L. Paris J.D. Lee. Stability of fatty acid profile in soybean genotypes with modified seed oil composition. Crop Sci. 2006, 46, 2069-2075. 

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