Comparing the composition of fatty acid in different types of olive oil

In this project, 32 olive oil samples consisting of virgin and refined olive oils were prepared. Oil samples were collected from Iranian olive oil producer particularly northern parts of Iran; Gilan, Golestan, Zanjan, Qazvin, Kermanshah and Shiraz provinces. The analysis of fatty acids was done by GC apparatus. All the Iranian olive oil samples were according to the limitation of Codex, IOOC, EC regulations. Amount of oleic acid in Zanjan was higher than other cities but a amount of palmetic, linoleic, linolenic acid in Shiraz was higher than other cities. statistical analysis were shown a negative correlation between linoleic acid (C18:2) and Oleic acid (18:1) in (0/05) level.