| In order to obtain a better development and utilization for Phytolacca americana L., the fatty acid composition of Phytolacca americana L. seed oil was analyzed by GC-MS,and there were six kinds of fatty acids detected from Phytolacca americana L. seed oil, including palmitic acid （12.66%）, stearic acid （29.92%）, oleic acid （55.00%）, linoleic acid （1.05%）, arachic acid （1.01%） and erucic acid （0.36%）, respectively. The content of polyunsaturated fatty acid in Phytolacca americana L. seed oil was very low（<2%）, while the monounsatu rated fatty acid was higher,showing a potential for biodiesel material. Then with Phytolacca americana L. seed oil and methanol as materials,the biodiesel preparation process conditions were optimized by single factor experiment and orthogonal experiment as follows: reaction time 80 min, reaction temperature 50?℃,molar ratio of methanol to Phytolacca americana L.seed oil 7∶?1 and catalyst dosage 1.1%.Under these conditions, the conversion rate of biodiesel was 94.6%. So Phytolacca americana L. seed oil was a kind of high quality plant oil resource with great development potential. |
