Abstract

Dog ROSE with the scientific name Rosa canina L. is shrub, perennial and wild in dry areas, rocky plains and in the pastures. The most important substances are acids, phenolic compounds such as tannin. Fruits are famous for high vitamin C and antioxidant properties. They have high amount of carotenoid, lycopene, carotene and xanthophylls. These materials are used for treatment of patients with lung cancer. The purpose of this research is to study phytochemicals in different population of R. canina L. grown in Caspian climate. R. canina was collected in September and October, 2011 from three sites (totally 30 samples), in North of Iran (Mazandaran and Guilan Provinces). Results indicated that Harris province has the highest ascorbic acid (10.4 mg/g fresh weight) and total phenol (26.54 mg gallic acid/ml). Ascorbic acid showed a positive correlation with total phenol and flavonoid, but negative one with seed oil. The highest concentration of oil (11.1%) and flavonoid (0.59 mg routine equivalent/ml) was measured in Tonekabon. Correlation table revealed that these two parameters are positive.

Key words: Rosa canina L., ascorbic acid, total phenol, flavonoid, seed oil.