Y. Imani; R. Razban Haghighi; F. Sefidkon; M. Naderi
Abstract
The current study was aimed to investigate the essential oil of Thymus pubescens Boiss.et Kotschy ex Celak chemotypes in five regions of E-Azerbayjanprovince. Samples were collected at the flowering atage. Hydrodistillation method was used to obtain essential oil. Quantitative and qualitative analysis ...
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The current study was aimed to investigate the essential oil of Thymus pubescens Boiss.et Kotschy ex Celak chemotypes in five regions of E-Azerbayjanprovince. Samples were collected at the flowering atage. Hydrodistillation method was used to obtain essential oil. Quantitative and qualitative analysis was done by GC and GC/MS methods. Twenty six compounds were determined in the essential oil of experimental sites. Cluster analysis, based on these components with WARD method, showed that five areas were divided into three clusters, so that the first cluster was related to the Sahand area chemotype, the second cluster was related to the Mishoo chemotype and the third cluster included common chemotype in Malekan (Egdelou), Kaleibar (Yuzband) and Maraghe (Kordedeh). Our results showed that the highest and lowest amount of essential oil was recorded for the first chemotype (Sahand, 0.31%) and the third chemotype (Egdelou, 1.34%), respectively. According to the Principal Coordinate Analysis the major compounds of essential oils were as follows: in the first chemotype: р-cymene (4.3%), n-nonanal (9.8%), methyl ether thymol (10.6 %), thymol (30.9 %) , thymyl acetate (13.5%); in the second chemotype: p-cymene (4.1%), γ-terpinene (6.2%), carvacrol (82.1%); in thr third chemotype p-cymene (7.2-1.6%), γ-terpinene (6.5-2.2%), thymol (65.6-27.6%), carvacrol (25.4-3.7%).
A. Kheiry; F. Sefidkon; M. Delshad; M.R. Fattahi Moghaddam; A. Izadi
Abstract
Achillea millefolium L. from Asteraceae family is considered as an important medicinal plant in the world and also in our country which has considerable secondary metabolites, especially essential oils. Active substances of this plant are used not only in old and modern medicine but also in hygienic, ...
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Achillea millefolium L. from Asteraceae family is considered as an important medicinal plant in the world and also in our country which has considerable secondary metabolites, especially essential oils. Active substances of this plant are used not only in old and modern medicine but also in hygienic, cosmetic and medical industry. In this research, we studied yield and chemical composition of yarrow essential oils from 15 different ecological regions of Iran. For essential oils isolation, the aerial parts of the plant were collected from habitats, in June and July 2009 at full flowering stage. Samples were dried at room temperature and the essential oils were prepared by hydrodistillation method.The oil yields were calculated on dry weight basis and the analysis of the essential oils was carried out by GC and GC-MS. The results showed that total content of essential oils was variable from 0.32 - 0.72% in different populations. The color of the essential oils varied from pale yellow to dark blue and a close relation was found between composition and color of the essential oils. According to the results, essential oil of Achillea millefolium L. in populations of Iran showed a great diversity with regard to the type of the chemical compositions (high chemical polymorphism). Regarding the major components of the oils, seven chemotypes were identified as follows: 1) 1,8-cineole, 2) p-Cymene, 3) cubenol, 4) chamazulene, 5) chrysanthenone + camphor, 6) Lavandulyl acetate + camphor, and 7) camphor + Limonene.
M. Habashi; M. Mirza; Y. Mostofi; K. Jaimand
Volume 24, Issue 4 , February 2009, , Pages 428-436
Abstract
The citron (Citrus medica L.) belongs to Rutaceae family. Citron peel oil is widely used in perfume industry, medicine, and food products. In this research the fruits of citron were collected from North of Iran in the fall and peel oil obtained by hydrodistillation and cold-press methods with the ...
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The citron (Citrus medica L.) belongs to Rutaceae family. Citron peel oil is widely used in perfume industry, medicine, and food products. In this research the fruits of citron were collected from North of Iran in the fall and peel oil obtained by hydrodistillation and cold-press methods with the extraction efficacy of 0.6% and 0.5% (w/w), respectively. The oils were analyzed by GC and GC-MS. Twenty-five components were identified in the hydrodistilled oil. The main components were limonene (58.3%), γ-terpinene (16.8%), geranial (6%) neral (4.8%), geranyl acetate (1.4%) and geraniol (1.36%). Twenty-three components were characterized in cold-pressed oil with limonene (63.7%), γ-terpinene (21.7%) and geranial (1.3%) as the main components.
K. Jaimand; M.B. Rezaee; M.H. Assareh; M.M. Brazandeh
Abstract
In this research, essential oils were extracted by hydro-distillation method but with different apparatus of distillation from Rosa damascena Mill. The oil obtained at different yields for example for Clevenger (0.008%), Miquel (0.014%), A.O.A.C. (0.012%) and two plans designed in Research Institute ...
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In this research, essential oils were extracted by hydro-distillation method but with different apparatus of distillation from Rosa damascena Mill. The oil obtained at different yields for example for Clevenger (0.008%), Miquel (0.014%), A.O.A.C. (0.012%) and two plans designed in Research Institute of Forests and Rangelands by authors which were named plan-1 (0.015%) and plan-2 (0.023%). Samples were analyzed by GC and GC/MS. The main constituents of the oil by Clevenger were geraniol (26.7%), n-nonadecane (21.3%), citronellol (12.5%) and n-henicosane (12.0%); by Miquel were geraniol (32.9%), citronellol (19.0%), n-nonadecane (10.6%); by A.O.A.C. were n-nonadecane (28.5%), geraniol (22.6%), n-henicosane (10.6%) and citronellol (10.2%) in plan -1 were n-nonadecane (21.3%), geraniol( 21.8%), citronellol (12%) and in plan-2 were n-nonadecane (21.8%), geraniol (19.1%) and citronellol (15%), respectively. By comparison of the results from different apparatus of hydro-distillation, it can be concluded that the best plan for obtaining essential oil from Rosa damascena Mill., were plan-2 and Miquel.
K Jaimand; M.B. Rezaee
Volume 20, Issue 2 , July 2004, , Pages 181-190
Abstract
The compostion of the oils from flower and leaf of Achillea mellifolium L. subsp.mellifolium were collected during the flowering period from Lar area to Damavand montain, alt. 3400 m. in July 2003. The essential oils obtained by different methods of distillation ( steam distillation and hydrodistillation), ...
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The compostion of the oils from flower and leaf of Achillea mellifolium L. subsp.mellifolium were collected during the flowering period from Lar area to Damavand montain, alt. 3400 m. in July 2003. The essential oils obtained by different methods of distillation ( steam distillation and hydrodistillation), the percentage of oils for flower and leaf by steam distillation were 0.2 and 0.05% and by hydrodistillation were 0.4 and 0.04% respectively, and calculated on the dry weight, and analysis by GC and GC/MS. The major constituents by hydrodistillation in flower were p-cymene (19.8%), n- heptanol (15.2%) and bornyl acetate (12%) in leaf p- cymene (24.1%), n- heptanol (11.1%) and camphor (5.9%) and by steam distillation in flower were (E)-isoeugenyl acetate (18%), n- heptanol (16.3%), bornyl acetate (16.2%) and p-cymene (9.3%) in leaf (Z)- isodemicin (16%), (E)-isoeugenyl acetate (14.9%), nootkatin (13%) and longifolene (11.8%), respectively
F. Askari; F. Sefidkon
Volume 20, Issue 2 , July 2004, , Pages 229-237
Abstract
Melissa officinalis L. is a very easily grown plant that habitats in south and Eastern of Europe, Spain and Asia. The plant of Melissa collected from three fields in Fars, Tehran and Semnan provinces. Essential oils were isolated by hydro-distillation. The yields of Essential oils of Fars sample (Shiraz), ...
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Melissa officinalis L. is a very easily grown plant that habitats in south and Eastern of Europe, Spain and Asia. The plant of Melissa collected from three fields in Fars, Tehran and Semnan provinces. Essential oils were isolated by hydro-distillation. The yields of Essential oils of Fars sample (Shiraz), Tehran sample (Karaj) and Semnan sample were 0.14%, 0.25% and 0.26% (w/w) respectively. The oils were analyzed by GC (9A-Shimadzu) and GC/MS (Varian 3400). Seventeen constituents at Fars sample oil, seventeen constituents at Tehran sample oil and fourteen constituents at Semnan sample oil were identified respectively. Major constituents of Fars sample were citronellal (25.4%), b-caryophyllene (11.3%), thymol (10.5%), globolol (6.1%), caryophyllene oxide (6.5%) and geraniol (5.7%). Major constituents of Karaj sample oil were citronellal (9.3%), carvacrol (31.8 %), Humulene epoxide (25.4 %) and a-humulene (10.2%). Major constituents of Semnan samples oil were citronellal (43.8%), b-caryophyllene (13.5%), thymol (7.9%), globolol (6.8%), neral (5.3%) and geranial (5.0%). Fourteen constituents were common at all sample oil. Major constituent at all samples oil was citronellal. Four major constituents were common at Fars and Semnan samples oil.
K. Jaimand; M.B. Rezaee
Volume 20, Issue 1 , April 2004, , Pages 89-98
Abstract
The compostion of the oils from flower and leaf of Achillea eriophora DC were collected during the flowering priod from 25 km away from Shiraz in park Bamoo alt. 1650 m. in July 2003. The essential oils were obtained by different methods of distillation ( steam distillation and hydrodistillation), ...
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The compostion of the oils from flower and leaf of Achillea eriophora DC were collected during the flowering priod from 25 km away from Shiraz in park Bamoo alt. 1650 m. in July 2003. The essential oils were obtained by different methods of distillation ( steam distillation and hydrodistillation), the percentage of oils for flower and leaf were 1% and 0.9% and 1.2% and 0.9% respectively, and calculated on the dry weight, and analysis by GC and GC/MS. The major constituents determined by steam distillation method in flower were 1,8-cineole (45%), b-pinene (16.6%) and (E)-nerolidol (7.6%) and in leaf were 1,8-cineole (41.5%), (E)-nerolidol (10%) and b-pinene (9.8%) and by hydrodistillation method in flower were 1,8-cineole (41.3%), b-pinene (12.4%) and a-thujene (6.5%) and in leaf were 1,8-cineole (41.%), b-pinene (13.8%) and terpinen-4-ol (9.1%), respectively.
