According to the fact that the ratio of SFA : MUFA and the ratio of n- 6 : n- 3 polyunsaturated fatty acids is (4-6) : established through programming and calculation by matlab math so 1 ft PUFA is 1 : 1 : 1 in mass, , a mathematical model was ware, and appropriate ratio of raw materials in edible blended oil was obtained. According to the percentage, edible blended oil sample was obtained. Fatty acid content of the sample was measured and edible plants blend oil was identified by fatty acid composition. Verificatio...