شناسايي تركيبات متشكله روغن اسانسي مرزنگوش (مرزنجوش ) ORIGANUM VULGARE L. كاشته شده در باغ گياه شناسي ملي ايران

Identification of the essential oil constituents of origanum vulgare L. cultivated in national botanical of Iran

Flowering parts of Origanum vulgare L. was collected from National Botanical Garden of Iran in Aug . 1999 and steam distilled for 45 min . An essential oil of 0.3% yield (based on dry flower) was obtained. In order to quantitativef qualitative analysis, the oil was injected to GC and GC/MS. Thirty six compounds were identified representing total oil which among them p- caryophlylene (24.5%), germacrene-D (15.2%), trans·sabinene hydrate (9.5%), sablnene (6.0%), a-humulene (5.1 %), valencene (4.3%), and (E)-{3-ocimene (4.2%) were the major constituents .