Comparative Physicochemical, Phytochemical and Biological Study of Botanically Related Species from Brassicaceae Family Grown in Kurdistan Region, Iraq

The present study was aimed to compare between botanically related plants (Lepidium sativum and Nasturtium officinale) belong to Brassicaceae family from variant parameters and emphasizing their botanical relation. Lepidium sativum and Nasturtium officinale plants were evaluated physicochemically, phytochemically (qualitatively and quantitatively) and biologically by assessing the antibacterial activity of the two plant against standard pathogenic bacterial strains using agar well diffusion method. Nasturtium officinale plant exhibit a significant total ash content (21.29±0.577%) and flavonoidal content (7.5±0.233%) while a significant alkaloidal content (6.4±0.226%) was expressed Lepidium sativum plant. Flourescence analysis showed identical color for both plant when treated with some reagents example ferric chloride and potassium dichromate. Biologically Nasturtium officinale was the active plant which shows antibacterial activity against Pseudomonas aeruginosa (ATCC 27853) with inhibition zone (25 ± 0.001). The obtained result showed the antibacterial activity of Nasturtium officinale plant in comparison to it is botanically related species and underlined the botanical relation of both species.