Ferula assafoetida is herbaceous, monoecious and perennial plant belonging to Umbelliferae family. It is one of the important medicinal plants that native to Iran and Afghanistan [1,2]. The objective of this study was to evaluation of quantity and quality of resin essential oil of Ferula assafoetida in different regions of Kerman province, Iran. The resin of Ferula assafoetida plants were collected from nine rangelands in Kerman province. The essential oil of samples of F. assafoetida was isolated by hydrodistillation using a Clevenger-type apparatus. The oils were analyzed by using GC and GC/MS. Results showed essential oil content varied from 10.07% to 7.24% (v/w). Chemical profiles of samples showed variation in main and minor compounds of oils. The main of compounds were α-pinene (4.15-6.70%), (E)-β-ocimene (2.5-6.28%), n-propyl sec-butyl disulfide (0-5.01%), (E)-propenyl sec-butyl disulfide (37.30-53.99%) and (Z)-propenyl sec-butyl disulfide (12.10-23.10%).

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