مقالههای Gholamreza Dehghan
توجه: محتویات این صفحه به صورت خودکار پردازش شده و مقالههای نویسندگانی با تشابه اسمی، همگی در بخش یکسان نمایش داده میشوند.
اطلاعات انتشار: Advanced Herbal Medicine، اول،شماره۱، ۲۰۱۴، سال ۰
تعداد صفحات: ۷
Background and aims: The Achillea genus has a wide distributional range, and the differences in oil composition may be affected by different environmental factors such as plant genetic type, seasonality, and developmental stage. The aim of this research was to determine the chemical combination of the essential oils derived from flowering aerial parts of Achillea millefolium, A. biebersteinii and A. wilhelmsii (family Astreacea) collected from different locations of East–Azarbayjan in Iran. Methods: In this experimental study, Wild Achillea plants (A. millefolium, A. biebersteinii and A. wilhelmsii) were collected from three localities of East–Azarbayjan of Iran during the flowering period. The chemical combination of the isolated oils was examined by gas chromatography–mass spectrometry. Results: In A. millefolium, the major compounds were 1,8–cineole (28.0%), camphor (19.2%), borneol (98.8%) and β–pinene (6.3%). In A. biebersteinii the major compounds were α–terpinen (41.42%), 2–carene (13.96%), m–cymene (13.41%) and 1,8–cineole (8.91%). In A. wilhelmsii the major compounds were carvacrol (29.2%), linalool (10.3%), 1,8–cineole (11.0%), (E)–nerolidol (8.4%) and borneol (5.04%). Conclusion: Chemical compounds of essential oils of Achillea species were highly variable, which may be due to the differences in their chemical polymorphic structure and environmental conditions.
۲Qualitative and quantitative changes of essential composition in the flowers of some populations of Elaeagnus angustifolia
اطلاعات انتشار: Advanced Herbal Medicine، دوم،شماره۱، ۲۰۱۶، سال ۰
تعداد صفحات: ۶
Background and aims: Elaeagnus angustifolia L. is a member of the Elaeagaceae family; different parts of it, especially fruits have been used for the treatment of several diseases in traditional medicine. The aim of this study was to isolate and determine essential oil composition of flowers of E. angustifolia collected from different ecological areas of East–Azarnayjan in Iran. Methods: In this experimental study, the essential oils of the flower were isolated by hydrodistillation method and analyzed by GC and GC\MS. Results: The number of compounds in the essential oil isolated from the population of Ahar, Marand and Hashtroud were 22, 17 and 14, respectively. The major component of all of the populations was ethylcinnamate; Ahar (47.59%), Marand (69.99%) and Hashtroud (85.49%). It was observed that the oil number of E. angustifolia decreases from 22 to 14 when the altitude increases from 1344–1750 m. Conclusion:Chemical composition of the essential oils of E. angustifolia L. such as esters and aromatic acids contents were increased while the ketone content was decreased with increasing altitude.
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