M. Naderi Hagibaghercandi; F. Sefidkon; M.R. Poorherave; M. Mirza
Abstract
Laurus nobilis L. (Lauraceae) is an evergreen tree and growing in favorable condition to a height of about 15-20 meter. This ornamental tree is indigenous to the Mediterranean area and southeast part of Europe. The essential oil obtained from Laurus nobilis has been used for anti larvae, rheumatic pains ...
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Laurus nobilis L. (Lauraceae) is an evergreen tree and growing in favorable condition to a height of about 15-20 meter. This ornamental tree is indigenous to the Mediterranean area and southeast part of Europe. The essential oil obtained from Laurus nobilis has been used for anti larvae, rheumatic pains and muscular convulsion. Laurel is usually considered as the natural source of this compound, used in the flavor, cosmetic and fragrance industries. In the present study the leaves of Laurus nobilis were collected from two locations (Botanical Garden of Noshahr and National Botanical Garden of Iran in Tehran) in March 2009 and dried in shade. In addition the green stems and fruits were collected from Noshahr. The essential oil of all samples were obtained by hydro-distillation and analyzed by capillary gas chromatography (GC) and gas chromatography/mass spectrometry (GC/MS). The oil yields based on dry weight for stem, leaf and fruit are respectively 0.22%, 0.43% and 1.35% (for Noshahr samples) and 3.86% for the leaves of Tehran sample. Twenty-fore, 27, 37 and 20 components were identified in the essential oils of stem, leaf, fruit (for Noshahr) and leaf (for Tehran) of Laurus nobilis (representing 95%, 98.5%, 95.6% and 98.4% of the oils), respectively. The major components in the stem oil were 1,8-cineole (42.9%), α-terpinyl acetate (16.8%) and sabinene(4.7%). The main compounds in leaf oil were 1,8-cineole (58.2%), α-terpinyl acetate (10%) and sabinene(7.2%) and main compounds in leaf oil in Tehran sample were 1,8-cineole (47%), sabinene(13.9%) andα -terpinyl acetate (11.5%). The major components in fruit oil were E-β-ocimene (20.8%), 1,8-cineole (14.4%), α-terpinyl acetate (8.5%), germacrene B (7.8%), α-pinene (6.6%), germacrene D (6%), sabinene(5.4%) and β-pinene (5.1%). The results obtained from this study showed that the oil yields from the stem was lower than leaves but in both stem and leaf oils the major components were similar. The fruit oil contained high amount of E-β-ocimene.
A. Shafaghat; H. Akhlaghi; A.R. Motavalizadeh Kakhky; K. Larijani; A. Rustaiyan
Volume 24, Issue 2 , August 2008, , Pages 244-252
Abstract
The Umbelliferae family comprising about 300 genera and 3000 species worldwide is also widespread in Iran. The genus Chaerophyllum L. is represented in the flora of Iran by eight species of which two are endemic (Chaerophyllum khorassanicum and Chaerophyllum nivale). In this work, the plant material ...
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The Umbelliferae family comprising about 300 genera and 3000 species worldwide is also widespread in Iran. The genus Chaerophyllum L. is represented in the flora of Iran by eight species of which two are endemic (Chaerophyllum khorassanicum and Chaerophyllum nivale). In this work, the plant material was collected on 3 July 2005 in Khalkhal area (Ardabil Province) at an altitude of 1950m near Lonbar village, in North–West of Iran. The aerial part and root of plant were air-dried at room temperature for ten days then subjected to hydrodistillation for 3 and 4 hours respectively, using a Clevenger–type apparatus. The analysis of the oils was performed by using GC and GC/MS methods. Eighteen constituents (0.2% V/W) representing 99.2% of the essential oil of aerial part and ten components (96.3%) of the root oil (0.17% V/W) has been identified. The main components of the root oil were myristicin (39.1%), terpinolene (23.0%), E-β-ocimene (21.9%), and γ-terpinene (5.4%). Whereas, the oil of aerial part was characterized by higher amount of E-β-ocimene (24.9%), myristicin (15.7%), terpinolene (14.2%), fenchyl acetate (13.9%), Z-β-ocimene (6.3%) and sabinene (6.1%). The comparison between two sections of plant showed in the root oil, myristicin as a predominated compound over aerial part oil.