Dorema ammoniacum D. Don. is a perennial herbs from Apiaceae family that grows wild in central and eastern regions of Iran such as Yazd, Isfahan, Kerman, Semnan and Khorasan provinces, and its local names are Kandal, Vasha or Oshagh and Koma-kandal. There is some eviden
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Dorema ammoniacum D. Don. is a perennial herbs from Apiaceae family that grows wild in central and eastern regions of Iran such as Yazd, Isfahan, Kerman, Semnan and Khorasan provinces, and its local names are Kandal, Vasha or Oshagh and Koma-kandal. There is some evidence in Iranian traditional medicine about the anticonvulsant and anti-inflammatory properties of D. ammoniacum gum resin exuding from its root and stem. In this study, roots, stems, leaves, flowers and gums of D. ammoniacum were collected in the spring 2018 from Birjand in South Khorasan province. After drying the samples, the essential oils were extracted by hydro distillation and their content and compositions were investigated with gas chromatography techniques. The highest and lowest yield of essential oil in D. ammoniacum was obtained for gum and roots with a value of 1.0% and 0.2%, respectively. Based on the analysis of essential oils, 73 compounds were identified in organs and gum. In roots, stems, leaves, flowers and gum essential oils 91.3 %, 97.15 %, 91.8 %, 88.4 % and 89.4 % of the total components were identified, respectively. (Z)-sabinene hydrate, (2E, 6E)-farnesol, elemicin and n-hexacosane were common compounds among all essential oils. In addition, a series of monocyclic bisabolene compounds such as α-bisabolol, Z-α-bisabolene, β-bisabolene, ar-curcumene, ar-dihydro turmerone in different organs of the D. ammoniacum essential oils. The percentage of bisabolene compounds identified in different D. ammoniacum essential oils was 35.5% for root, 3.4% for stem, 1.4% for leaf, 14.5% for flower and 8.5% for gum essential oil. The most identified compounds in the D. ammoniacum essential oil were sesquiterpene compounds.
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