PJB-2018-960
PHYTOCHEMICAL SCREENING AND ANTIOXIDANT POTENTIAL OF SMILAX CHINA, CURCUMA ZEDOARIA, CITRULLUS LANATUS, MUCUNA PRURIENS AND CINNAMOMUM TAMALA PLANTS
Wajeeha Arshad
Abstract
Medicinal plants being safer and cost-effective sources of antioxidants are preferred over synthetic agents. Smilax china and Curcuma zedoaria roots, Citrullus lanatus and Mucuna pruriens seeds, and Cinnamomum tamala leaves have well acclaimed pharmacological activities. The current study was conducted for the determination of the antioxidant activity, phytochemical screening and functional group determination of above mentioned five medicinal plants. DPPH method, reagents (Dragondroff’s reagent, Mayer’s reagent, Hager’s reagent and Wagner’s reagent) and FTIR was used for determination of antioxidant activity, phytochemical analysis and confirmation of the functional groups. Smilax china, Curcuma zedoaria, Cinnamomum tamala, Citrullus lanatus and Mucuna pruriens exhibited antioxidant activity of 80.3%, 81%, 84%, 76% and 72.40 % compared to ascorbic acid. The phytochemical screening showed positive results for tannins, flavonoids, phenols, saponins, alkaloids, terpenoids, carbohydrates, steroids and glycosides. FT-IR analysis confirmed the presence of different functional groups such as carboxylic, phenolic, hydroxyl and amines. Moreover, antioxidant activities varied as the solvents used for the extraction were varied. The presence valuable secondary metabolites in these plants need further research to explore their medicinal, pharmaceutical and cosmaceutical applications.
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