Fatty Acids, Triacylglycerol and Sn-2 Fatty Acids Distributions Variations in Seed Oil from Camellia Cultivars

摘要

Camellia seed oil is widely used in the food, health, cosmetics and medicine industries in China. The present study aimed to investigate fatty acids, triacylglycerols (TGAs) and sn-2 fatty acids distributions variations in seed oil from 46 kinds of Camellia cultivars. The predominant fatty acids was oleic acid (18:1ω9) with 71.30% (average). The sn-2 position was mainly occupied by oleic acid, linoleic acid and palmitic acid. Fifteen TAGs species were found and the main TAGs were OOO + SLO, OOP and OOL+SLL. The trisaturated TAGs species were not detected. These results indicated significant changes in the profiles of fatty acids, sn-2 position fatty acids and TGAs, and in contents of these in seed oils from different Camellia cultivars (P 0.05). Saturated fatty acids is not positively related to its distribution in sn-2 position. The data in present paper may be important as a reference for adulteration of camellia seed oil with other oils.