Brassica nigra plays a remedy role in hepatic and renal damage.

Context: Black mustard [Brassica nigra (L.) Koch] of the Brassicaceae (Cruciferae) family is commonly used as a spice and a cheap source of antimicrobial agents for bacterial infections.

Objectives: The present investigation was to demonstrate the protective effect of the methanol extract of B.

Polyphenol contents and antioxidant activity of Brassica nigra (L.) Koch. leaf extract.

Profound research has been done on the medicinal value of Brassica nigra (BN) seeds, and the leaves of the plant have been investigated in this study. The methanol extracts of the leaves were subjected to several in vitro studies. The antioxidant activity of methanol extract was demonstrated with a wide range of concentration, 10-500 µg mL(-1), and the antioxidant activity increased with the increase in concentration.

Identification, quantification of bioactive constituents, evaluation of antioxidant and in vivo acute toxicity property from the methanol extract of Vernonia cinerea leaf extract.

Context: Vernonia cinerea (L.) Less [Compositae (Asteraceae)] is used traditionally for several medical purposes such as inflammation, pain, fever, and cancer.

Objectives: The present study identified the bioactive constituents in the methanol extract of Vernonia cinerea leaf and evaluated its antioxidant activity and acute toxicity.