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Introduction: Cyperus articulatus rhizome has been used in folk medicine by different inhabitants belonging to tropical and subtropical regions. But its metabolite profile and potential pharmacological and food applications were hardly explored. Evaluation of biological activities of Cyperus articulatus metabolites was the objective of the present study. Materials and Methods: In vitro biological studies concerning radical scavenging, reducing activity, food (meat and β-carotene) protection, biomolecule (DNA and Protein) protection and Acetylcholinesterase inhibitory activity were carried out for the rhizome extracts. Chemical constituents of the bioactive rhizome extract were analyzed through HRLC-MS/MS. Results: The rhizome acetone extract showed the highest antioxidant activity and protected DNA and protein from degradation at the lowest concentrations compared to all the six different solvent extracts tested. It significantly inhibited β-carotene bleaching, controlled the TBARS values during meat oxidation and significantly inhibited the Acetylcholinesterase enzyme. The major compounds detected in HRLC-MS/MS were dihydroquercetin, mycophenolic acid, embelin, quercetrin, meptazinol, koparin-2-methyl ether, venpocentine along with other phenolics and polyhydroxy compounds. Conclusion:The study explored Cyperus articulatus rhizome as a pharmacologically important source for nutraceuticals and drug ingredients and suggested further safety and efficacy studies of the detected metabolites.

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Flora and fauna diversities are two facts components of biodiversity which covers the variety and variability of species. A survey was conducted to study the rare plants of chitteri hills, Tamil Nadu, India. 96 Plants Belonging to 48 Family, 90 Genus and 96 species were Documented Plants totally were under thorough investigation. Of these monocots are represented by 7 species belonging to 7 genera and 4 families, while dicot contributed by 87 species belonging to 82 genera and 39 families, Ferns 2 families and 2 genera, Fungi 1 family and 1 Genera. Plant species were recorded and identified during the survey. The results show that the habitat of plants belongs to herbs, shrubs and tree species. But, we have observed only minimum tree species. Of these monocots are represented by 7 species belonging to 7 genera and 4 families, while dicots contributed by 87 species belonging to 82 genera and 39 families, Ferns 2 families and 2 genera, Fungi 1 family and 1 Genera. The study decipts that Chitteri Hills have different variety of plants distributed all over the mountain.