H. Batooli; J. Safaei Ghomi; T. Ahmadi
Abstract
Melia L. genus, belonging to the Meliaceae family, has important tree species.There are more than 15 species of this genus in the world and two species from Iran have been reported so far. In this study, the chemical compositions of the essential oils of reproductive organs of M. azedarach L., cultivated ...
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Melia L. genus, belonging to the Meliaceae family, has important tree species.There are more than 15 species of this genus in the world and two species from Iran have been reported so far. In this study, the chemical compositions of the essential oils of reproductive organs of M. azedarach L., cultivated in Kashan Botanical Garden, were investigated. The flowering branches and ripe fruits of this species were collected in the spring of 2009 and dried in the shade (at room temperature). The essentila oil was extracted by simultaneous steam distillation extraction method. The oil analysis was performed by using GC and GC-MS. The essential oil yield of flowering branches and fruits was calculated to be 0.02% and 0.01% (w/w), respectively.Ten and 35 chemical compositions were identified in the essentila oils of flowering branches and fruits of this species. The main components of the essential oils of flowers were E-nerolidole (39%), bicyclogermacrene (8.2%) and viridiflorol (8.1%). The main components of the essential oils of fruits were aromadendrene (21.9%), bicyclogermacrene (13.7%), globulol (8.1%), spathulenol (6.5%), allo-aromadendrene (4.7%), β-caryophyllene (4.7%). Oxygenated sesquiterpens were identified as main component in the essential oil of flowers, while the major chemical component of the essential oils of fruits were associated with hydrocarbon sesquiterpens, and hydrocarbon monoterpenes were not found in plant reproductive organs.
H. Batooli; J. Safaei-Ghomi
Abstract
Nepeta L. genus belongs to Labiatae family that has important medicinal and aromatic species. More than 250 species in world and 67 annual and pernnial species in Iran have been reported. In this investigation, essential oil composition of Nepeta gloeocephala Rech. f., Nepeta sessilifolia Bunge and Nepeta ...
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Nepeta L. genus belongs to Labiatae family that has important medicinal and aromatic species. More than 250 species in world and 67 annual and pernnial species in Iran have been reported. In this investigation, essential oil composition of Nepeta gloeocephala Rech. f., Nepeta sessilifolia Bunge and Nepeta laxiflora Benth have been staudied. The species are endemic to Iran and have natural habitats in Dorien, Ghohroud and Mashhad-e-ardahal of Kashan. The flowering branches of these species were collected in spring and summer and dried in shade (at room temperature). The flowering branches of the species subjected to volatile fraction were isolated by hydrodistillation using a Clevenger-type apparatus for 3 or 4 hours. After decanting and drying of the oils over anhydrous sodium sulfate, they were stored in vial at low temperature (4ºC) before analysis. The analysis of the oils was performed using GC and GC-MS. The results showed that, the essential oil of Nepeta gloeocephala Rech. f. was yellow in 1/3% (v/w) yield and 29 components were identified, among them, 1,8-Cineole (35.2%), Beta-pinene (21.8%), sabinene (7.8%), (E)-beta ocimen (7.1%), alpha-pinene (7.1%) and (Z)-ocimene (6.9%) were the major compounds. The essential oil of Nepeta sessilifolia Bunge was bright yellow in 0.65% (v/w) yield and 33 components were characterized, among them, spathulenol (25.8%), lavandulyl acetate (16.7%), limonene (6.4%) and geranyl acetate (4.17%) were identified. The essential oil of Nepeta laxiflora Benth was sharp yellow in 0.175% (v/w) yield and 30 components were identified, among them, alpha-pinene (19.7%), 1,8-cineole (11.8%), alpha-bisabolol (6.9%), delta-cadinene (6.8%), germacreneD-4-ol (6.2%), and caryophyllene oxide (4.4%) were main compounds.