Qualitative and Quantitative Phytochemical Screening, Antioxidant and Anti-inflammatory Activities of Acetone Extract of Brassica juncea L. Leaf

Objective: The aim of this study is to evaluate the phytochemical screening; antioxidant and antiinflammatory activity of acetone extract of Brassica juncea (L.) Czern leaf.

Methods: Qualitative and quantitative phytochemical screening was conducted by following standard protocols. To assess the antioxidant properties, Nitric oxide (NO) assay, 1-Diphenyl-2-picrylhydrazyl (DPPH), 2,2'- Azino-bis (3-ethylbenzthiazoline-6-sulfonic acid, ABTS), Protease inhibitor assay, anti-inflammatory and reducing power (%) activities were performed by using the standard methodology.

Results: Qualitative investigation showed the presence of alkaloids, carbohydrates, phenols, flavonoids, proteins, saponins and tannins respectively. Quantitative analysis showed protein content was more followed by phenolic content, glucose concentration, total antioxidant activity and flavonoid content respectively. The inhibitory concentration (IC50) and EC50 values along with standards were estimated by using NO, DPPH and ABTS respectively. Protease inhibitor (%) and reducing power (%) activities were increased dose dependent manner, at higher dose 1000µg/mL the Protease inhibitor (%) and reducing power (%) activities 537.95 ± 26.58 (%) and 41.28 ± 7.28 were observed respectively.

Conclusion: Based on our results, we concluded that acetone extracts of B.juncea leaf showed potential antioxidant and anti-inflammatory properties.