Document Type : Research Paper
Authors
1 Academic member of Research Institute of Forests and Rangelands, Medicinal Plants Department
2 Academic member of Research Institute of Forests and Rangelands
3 Tehran University
Abstract
The genus of Mentha is one of the most important of medicinal plant which is used in pharmaceutical and food industries. Cultivated Mentha piperita L. were collected from two different locations, one from Karaj city, Kalak (sample 1) at the beginning of June 1998 and other sample from Kamoo village 70 Km away from Kashan city (sample 2) at the beginning of June 1999, and essential oils were obtained from leaves by steam distillation method. The oil yields of two samples were 1% v/w calculated on the weight of fresh plant. The oils were analyzed by capillary GC and GC/MS. Main components from sample 1 representing 93.55% of total oil were, Neo-menthol (42.62%), 1,8-Cineole (16.81%) and piperitone (12.25%), and for seconed sample, main components are L-menthol (37.55%), L-menthone (19.13%), 1,8-Cineole (11.48%) and Menthofuran (4.45%).
)