جستجوی مقالات مرتبط با کلیدواژه « بورنئول » در نشریات گروه « زیست شناسی »

The 1,8-cineol and borneol are the most secondary metabolites from the Artemisia persica Boiss. Essential oil which have antimicrobial and antifungal properties. In this study due to this aim, the aerial parts of Artemisia persica Boiss. at pre-flowering stage (PF) were collected from Kerman region in June 1394. The essential oil was extracted by water distillation (Clevenger's apparatus) and was analyzed by GC/MS. The antifungal effect of this essential oil against Aspergillus strain growth was investigated by using agar wells by measuring the diameter of the inhibition zone, MIC value was also evaluated by a microdilution method. The results were showed that the essential oil yield (v/w) was 1.55% with 39 compounds which identified in plant essential oil, the borneol (32.8%), 1,8-cineol (18.3%), camphor (8.64%) and camphene (6.75%) were the main compounds of this plant oil, respectively. The essential oil with dilutions 1 and 1/2 has significant inhibitory power on the strain of Aspergillus niger in compare to the fluconazole antibiotic. The borneol with 10% dilution also had a significant inhibitory effect on Aspergillus niger’s growth. The antifungal effects of essential oil can be attributed to the high percentage of borneol and 1,8-cineol present in it. According to these results it can be argued that the essential oil of this plant can be used as an herbal medicine with an appreciable antifungal effect, and also it’s could be used in various food, health and pharmaceutical industries.

In this research, apical shoots of Achillea wilhelmsii and A. millefolium at three different developmental stages including thevegetative, flowering and fruiting stages from natural habitat, Martyrs Valley, in West Azerbaijan were collected. Essential oil samples were extracted by water - distillation method (Clevenger apparatus) and were analyzed by GC and GC/MS. The results showed that at different harvest times, in addition to yield, quality and quantity of essential oils were also reported to differ. Of the total compounds identified in the essential oil of A. wilhelmsii, 36 and 16 constituents belonged to monoterpenes (69.23 percent) and sesquiterpens (30.76 percent), respectively. So monoterpenes had the highest share in compounds. In the essential oil of A. millefolium, 37 compounds identified as monoterpene (56.92%) and 28 compounds (43.07%) as the sesquiterpene. The most important compounds in the essential oil of A. millefolium, were 1-8 cineole, camphene, borneol and camphor that 1-8 cineole, camphene & borneol and camphor in May, June and July had the highest value, respectively. Among the major constituents of the essential oil of A. wilhelmsii, compounds camphor, camphene, 1-8 cineol, borneol, 3,5 heptadien 2 ol, 2,6 dimethyl and α-pinene were the highest in the vegetative stage. 1-8 cineole, borneol, myrtanol and thujone were the highest in the fruiting stage. α- linalool, ocimenol, borneol, myrtanol and camphor were the highest in the flowering stage. The results showed that quality and quantity of the essential oils vary in different species and phenological stages. As a result, they havedifferent pharmaceutical actions