فهرست مقالات 8-cineol

• دسترسی آزاد مقاله
  • صفحه چکیده
  • متن کامل
  
  1 - The effects of some ecological factors on essential oil yield and composition of Ziziphora clinopodioides Lam.
  غلام رضا بخشی خانیکی فاطمه سفیدکن زینب دهقان
  Background & Aim: Different species from mint family (Lamiaceae) are used as spices and fragrance in food or as medicine against viral or microbial diseases in many countries for generation. Lamiaceae family contains 46 genus and 410 species. One of the valuable and چکیده کامل

  Background & Aim: Different species from mint family (Lamiaceae) are used as spices and fragrance in food or as medicine against viral or microbial diseases in many countries for generation. Lamiaceae family contains 46 genus and 410 species. One of the valuable and medicinal species of this family is Ziziphora clinopodioides Lam. This species contains the essential oil with pulegone as major compound and used for many medicinal uses.Experimental: In this investigation, the effect of some ecological factors on essential oil content and composition were studied. The aerial parts of Z. clinopodioides were collected at flowering stage from four habitats in Hamedan and Kurdestan provinces. The main parameters from each habitat like altitude, and percentage of slope, soil characters and other plant species were determined. The plant materials were subjected to hydro-distillation in three replications to obtain their essential oils. The essential oils were analyzed by GC and GC/MS.Results & Discussion: The results showed that ecological factors had significant effect (p<0.01) on oil yields. Identification of chemical constituents of the oils showed that main compounds (pulegone and 1, 8-cineole) and minor compounds exist in different percentage in different habitats. So the ecological factors had effect on essential oil composition of Z. clinopodioides. پرونده مقاله
• دسترسی آزاد مقاله
  • صفحه چکیده
  • متن کامل
  
  2 - Chemical components of essential oils of four Eucalyptus L'Her. species cultivated in Kashan’s botanical garden, Iran
  حسین بتولی عبدالحمید بامنیری عبدالرسول حقیر ابراهیم‌آبادی جواد صفائی قمی
  Background & Aim: Eucalyptus L'Her. [an aromatic genera of the family (Myrtaceae)] is native to Australia and other tropical species is planted worldwide. The purpose of this study is to extract and identify the essential oils components of four species of Eucalyptu چکیده کامل

  Background & Aim: Eucalyptus L'Her. [an aromatic genera of the family (Myrtaceae)] is native to Australia and other tropical species is planted worldwide. The purpose of this study is to extract and identify the essential oils components of four species of Eucalyptus L'Her. cultivated in botanical garden of Kashan, Central Iran. Experimental: Leaves of E. largiflorens, E. intertexta, E. torquata and E. loxophleba, were collected from the botanical garden in Kashan. Extracting was done by hydro-distillation method and Clevenger approach. Components of essential oils were identified using GC and GC/MS analysis. Results & Discussion: The essential oil yield of E. largiflorens was 1.85% (v/w) and, nineteen compounds were identified. The major components in the essential oil were 1,8-cineol (58.71%), p-cymene (12.42%), α–pinene (5.61%) and terpinen-4-ol (4.53%). Yield of the essential oil of E. intertexta was 1.5% (v/w) and, sixteen components were identified which the major components were 1,8-cineol (69.45%), α–pinene (14.26%), globulol (4.02%) and terpinen-4-ol (1.79%). Yield of the essential oil of E. torquata was 1.2% (v/w) and, twenty components were identified which the main compounds were 1,8-cineol (33.86%), α–pinene (26.14%), aromadendrene (8.99%) and globulol (7.28%). The essential oil yield of E. loxophleba was 1.54% (v/w) which the major components were identified including 1,8-cineol (25.71%), globulol (21.63%), aromadendrene (20.43%) and 4-metyl-2-pentyl acetate (14/98%). The highest amount of terpenoides in essential oil of leaves E. largiflorens, E. intertexta, and E. torquata were monoterpenes, while the highest amount of terpenoides in essential oil of E. loxophleba were sesquiterpenes. Industrial and practical recommendations: According to the results of this research and the value of different species of medicinal Eucalyptus L'Her essential oils (in particular, the combination of 1,8-cineol), cultivation and exploitation of E. intertexta for pharmaceutical industry is recommended. پرونده مقاله
• دسترسی آزاد مقاله
  • صفحه چکیده
  • متن کامل
  
  3 - Investigation of Environmental Factors Regarding the Essential Oil and Antibacterial Activity of Lavandin (Case Study: Jowkar, Khoramabad, Alashtar and Aligoodarz from Iran)
  Iman Bajalan
  Plants produce thousands of primary and secondary metabolites including volatile compounds at various developmental stages throughout their life cycle during flowering, ripening, and maturation. Lavandin known for its volatile compounds is a small aromatic shrub cultiva چکیده کامل

  Plants produce thousands of primary and secondary metabolites including volatile compounds at various developmental stages throughout their life cycle during flowering, ripening, and maturation. Lavandin known for its volatile compounds is a small aromatic shrub cultivated worldwide for the essential oil. Lavandin essential oil composition is greatly influenced by the environmental and genetic factors. The essential oils from the leaves and flowers of the plant are widely used to enhance the flavor of foods as well as cosmetic and pharmaceutical industries. In order to study the environmental factors regarding the essential oil and antibacterial activity of Lavandin, four populations were collected (Jowkar, Khoramabad, Alashtar and Aligoodarz) in Lorestan province, Iran in May 2014. The hydro-distillated essential oil was analyzed using GC and GC/MS. Results indicated that there were significant differences among the various populations for the main constituents in the essential oils. Analyses revealed 32 compounds constituting 91.63–97.2% of the essential oils. The main constituents were 1, 8-cineole (44.8 to 31.64%), borneol (26.14 to 18.47%), and camphor (14 to 8.41%). According to the results, there was a significant correlation between borneol and altitude (r=−0.95). Antibacterial data were analyzed using one-way analysis of variance. The essential oils of Lavandin indicated good inhibitory activities against four bacteria, especially against Salmonella typhi with the inhibition zones of 19−23 mm. It was concluded that there was a high variation for the essential oil composition among the populations of Lavandin. In addition, the essential oil of Lavandula × intermedia has a good potential source of natural products for being used in food industry. پرونده مقاله