Document Type : Research Paper
Authors
Research Institute of Forest and Ranglands , P.O.Box 13185, Tehran, Iran
Abstract
The genus of mentha is one of the most important of medicinal plant which is used in pharmaceutical and food industries . In this research our aim is study on methods of extraction and its effects on content and constituents of essential oils from Mentha x piperita L. Samples were collected from Alborz research center (Medicinal plant research farm , in Karadj city), and then only leaves seperated and dried on laboratory condition , and essential oils extracted by different apparatus of steam distillation method (apparatus planed by Jaimand – Rezaee, plan –1 and plan –2 ) essential oils content were 0.16% and 0.22% yield respectively. The essential oils samples analyzed by GC and GC/MS . the major constituents in plan-1 were : isomenthol 41.5% , isomenthone 17.5% , (E)-b-ocimene 7.8% and carvacrol 7.8%, and in plan –2 were isomenthone 28.6% , carvacrol 13.8% , (E) - b -ocimene 8.4% and pulegone 7.4% . Now you can observed type of apparatus for extraction, can be one of the factors on quantitative isolation in essential oils.
Keywords
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