The crude fat contents, water and volatile matter contents of four typical woody oilseeds (Brazil nut, pecans, sweet almond and almond), fatty acid and triglyceride compositions of the four oils were determined. The results showed that the water and volatile matter contents of four oilseed kernel were low, while the crude fat contents were high, ranging from 40.67% to 69.29%. The unsaturated fatty acid contents of pecans oil, sweet almond oil and almond oil were above 90%, while it was 73.85% for Brazil nut oil. The main fatty acids of the four oils were oleic acid(48.04%-80.16%). The triglyceride compositions of pecans oil, sweet almond oil and almond oil were mainly triunsaturated glycerides, and their content ranges were 69.88%-75.50%, while Brazil nut oil was mainly diunsaturated glycerides, and the content was 48.50%. The OOO was the highest in triglyceride compositions of the four different woody oils, and the highest were ECN48 in carbon atom equivalents. |