Sulforaphane Content in Different Organs of Lepidium draba from Different Ecotype of Kerman Province

Lepidium draba L. is a perennial weed belongs to the Brassicaceae family, contains considerably amount of glucoraphanin from glucosinolates group. Hydrolysis of this metabolite via myrosinase activity produce an isothiocyanate named sulforaphane that has various anticancer properties. It has been shown that environmental conditions such as temperature and altitude affect the biosynthesis level of secondary metabolites. In the present study, mature plants of L. draba was collected from different ecotypes of Kerman province [Mahan, Baft, Jiroft (Sardooiyeh)] and then sulforaphane content of each parts (root, leaf, flower and fruit) was measured using High Performance Liquid Chromatography. The results showed that fruits have the maximum amount of this compound, followed by flowers, leaves and roots. Also, the sulforaphane content in all organs of the plants where collected from Mahan was higher than two other cities. Based on the higher temperature and lower altitude of Mahan compared to the other cities, it deduced that these factors have significant effects on biosynthesis level of this active ingredient.