Determination of physical and chemical properties and fatty acid ingredients in seed oil of Salvia roborowskii

In order to determine whether Salvia roborowskii had the potentiality of biodiesel production, contents of fatty oils, fatty oil physical chemical properties and fatty acid composition in the seeds collected from Hongyuan Country were measured by the methods of Soxhlet extraction and GCMS. The results showed that fatty oil contents of seeds was 43.36%; oil iodine value and saponification value were 93.31 g·100 g-1 and 190.58 mg·g-1, respectively. Linoleic acid and oleic acid were the major fatty acids with the contents of 49.95% and 37.52%. Through calculation, the cetane number and cold filter plugging point of the relevant biodiesel were 53.94 and -4.65 ℃. Compared with the major specifications of biodiesel standards of China, S.roborowskii had the potential to be the Chinese nonfood plant resources for biodiesel production.