Vol. 8, Issue 5, Part C (2022)

Abstract
The samples investigated were screened foralkaloids, flavonoids, aurone, chalcone, flavone, flavone, flavonol, leucoanthocyanins, glycosides, HCN, saponins, tannins, phenols, steroids, cumarins, chromenes, terpenoids, and cardenolides. Phytochemicals act in numerous ways to assist the body in combating diseases and health problems. They combined with some biomolecules to neutralize activity of scavenging free radicals before they can cause damage within the body. The consumption of phytochemicals enhances reduction in the emergence of degenerating diseases. The antimicrobial activity of Ageratum conyzoides and Bidens pilosa leaves could be due to the abundant presence of alkaloids and flavonoids. Other flavonoid constituents such as aurone, chalcone, flavonoids, flavone, flavonol and leucoanthocyanin detected in the investigated parts of Ageratum conyzoides and Bidens pilosa in the present study may have aided the antibacterial activity of the plant. Tannins have astringent properties, hasten the healing of wounds and inflamed mucous membrane. Studies have shown that saponins although nontoxic, can generate adverse physiological responses in animals that consume them. They exhibit cytotoxic effect and the growth inhibition against a variety of cell making them have anti-inflammatory and anticancer properties.