Abstract
The current study focused on the essential oil concentration and aroma profile in different parts of wild Pycnocycla aucherana Decne from Iran during two years 2017 and 2018. Plant samples of P. aucherana were collected from HajiAbad area located in Hormozgan province, Iran at reproductive stage on June 7, 2017 and 2018. Essential oil isolation was done by hydro-distillation method for 3 hours. For the qualification and quantification of components, gas chromatography/mass spectrometry (GC/MS) was applied. Results showed that the averages of essential oil percentage of shoot and leaf (SL) and seed in the first and second year were (0.13, 0.23%) and (0.4, 0.3%) respectively. The main chemotype was namely -phellandrene (5.96-16%), p-cymene (3.07-27.4%), Limonene (0.72-6.80%), γ-cadinene (0.8-4.33%), Spathulenol (1.90-8.64%), Elemol (0.3-6.69%), b-eudesmol (0.8-9.27), and Bulnesol (0.91-3.40%). The highest amount of -phellandrene (16%) and p-cymene (27.4%) was observed in the seed and (SL) of essential oils in the first year respectively. Elemol and Elemicin content increased during the second year in the seed of essential oils with amount of (6.69 %) and (25.69 %), respectively. Overall, the results showed that the geographic origin greatly influenced the chemical composition of P. aucherana.
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