Research on Tea Seed Oil Percentage and Fatty Acid Composition from 13 Provinces

The tea seeds were selected from 13 provinces,and the oil content and the oil's fatty acids composition of tea seeds were analyzed.The results generally showed that tea seed contained a moderate amount of oil,and its oil percentage(in dry base) was over 30%.Tea seed oil is a kind of oil that has low acid value,low peroxide value,high stability,and high nutrition value.Through determination,the acid value of tea seed oil was below 1.0 mgKOH/g,the peroxide value was 0.2～1.6 meq/kg,and its oxidation stability is good.The varieties of fatty acids in tea seed oil samples are similar.In average,palmic acid content was 15.53%,stearic acid content was 2.92%,oleic acid content was 57.28%,and linoleic acid content was 22.30%.The ratio of saturated fatty acid(SFA),to mono-unsaturated fatty acid(MUFA),to poly-unsaturated fatty acid(PUFA) in fatty acid was about 1:3:1,This ratio meets the requirement of human body.