This study investigates the medicinal and nutritional properties of Pleurotus ostreatus (P. ostreatus), a mushroom species known for its significant health benefits. The research focuses on the quantification of primary and secondary metabolites, including carbohydrates, proteins, amino acids, alkaloids, flavonoids, phenols, tannins, and vitamins, which contribute to P. ostreatus's therapeutic potential. The study also explores the mushroom's antibacterial and antioxidant activities, revealing its high antioxidant capacity and effective antibacterial action against various microorganisms. The findings underscore P. ostreatus's potential as a functional food and a source of bioactive compounds for treating various human ailments. This research contributes to the understanding of the medicinal mushrooms' role in health and nutrition, emphasizing the value of P. ostreatus in developing natural therapeutic agents.

Key Words: Pleurotus ostreatus, secondary metabolites, antioxidant, mushroom