Analysis of lipid accompaniments in tea seed oils from thirteen provinces

Contents of several kinds of lipid accompaniments in tea seed oil samples from thirteen provinces were determined and analyzed.The results showed that total tea polyphenols contents in tea seed oils ranged from 20 to 45 mg/kg.Total tocopherol contents ranged from 250 to 450 mg/kg,in which α-tocopherol was the main component.Phytosterol contents ranged from 1 100 to 1 800 mg/kg,mainly including ergosta-7,22-dien-3-ol and sitosterol.Squalene contents ranged from 500 to 800 mg/kg.Especially,tea seed oils were abundant in lanosterol.