Physiological Roles of Phenolic Compounds Isolated from Medicinal Plants of Tropical Origin
2020
In this paper, Phytochemicals also known as secondary metabolites were reviewed. They are plant secondary metabolites, and they have an important role as defensive agents in biological systems. Polyphenols exhibit various properties that are indispensable to humans. Most phenolic compounds are known to have antimicrobial, cytotoxicity, anti-inflammatory properties as well as antitumor activities, but the best-described property of virtually every group of polyphenols is their capacity to act as powerful antioxidants which can protect the human body from free radicals and reactive oxygen species(ROS). For this reasons, phenolic compounds and their biological roles have become a subject of intense scrutiny. Basically, structural classification, sources, chemical composition and biological activity of phenolic compounds such as tannins, saponins, Alkaloids, flavonoids, coumarins and chalcones were discussed.
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