香榧籽油的脂肪酸及不皂化物组成分析_牛丽影 . Analysis on Fatty Acid and Unsaponifiable Matter in Torreya grandis var.merriii Seed Oil

Abstract

The seed of Chinese torreya(Torreya grandis var.merriii) is a special rare native nut in China.This research focused on the fatty acid and unsaponifiable matter composition of its seed oil determined by GC/MS.Results showed that linoleic acid and oleic acid were most abundant with mass fraction of 39.60% and 35.40%,followed by palmitic acid(10.24%) and sciadonic acid(all-cis-5,11,14-eicosatrienoic acid,8.65%).Sciadonic acid is an unusual fatty acid,which is first reported in Torreya seed oil in China.In other side,β-sitosterol and β-tocopherol were main unsaponifiable components with respective contents of 1.10 mg/g and 0.51 mg/g.These data would be helpful for the further development and utilization of Chinese torreya seed oil as functional food.