per 100 g, soybean oil has 16 g of saturated fat, 23 g of monounsaturated fat, and 58 g of polyunsaturated fat. the major unsaturated fatty acids in soybean oil triglycerides are the polyunsaturates alpha-linolenic acid (c-18:3), 7-10%, and linoleic acid (c-18:2), 51%; and the monounsaturate oleic acid (c-18:1), 23%. it also contains the saturated fatty acids stearic acid (c-18:0), 4%, and palmitic acid (c-16:0), 10%.