EVALUATION OF ANTIOXIDANT POTENTIAL , PHYTOCHEMICAL SCREENING, ELEMENTAL ANALYSIS OF AQUEOUS METHANOLIC EXTRACT OF Globba winitii C.H.Wright AND Pogostemon quadrifolius (Benth.)F.Muell

ABSTRACT Background and objective:Antioxidants possess the ability to eliminate free radicals .They have a role in the protective impact of plant-based meals . Secondary metabolites were considered to have therapeutic activity over various ailments. The current study involved the preparation and evaluation of the aqueous methanolic extract of two plant species: Globba winitti from the Zingiberaceae family and Pogostemon quadrifolius from the Lamiaceae family. Materials and Methods :The extracts underwent elemental analysis, in vitro antioxidant screening, and phytochemical screening by using Total Antioxidant Capacity, Superoxide anion scavenging activity assay, DPPH radical-scavenging activity, Fe2+ chelating activity assay” , Reducing power assay Results : The IC50(conc.)of ascorbic acid, MEPQ, & AMEGW for DPPH Radical scavenging activity were 34.91μgml-1,51.7μgml-1& 52.873μg ml-1,respectively. AMEGW,MEPQ, and conventional ascorbic acid were shown to have total antioxidant activity with IC50 values of 34.55μgml-1,32.01μg ml-1&42.41μg ml-1, in that order. For AMEGW,MEPQ, & ascorbic acid, the ascorbic acid of Super Oxide RadicalScavengingActivity(IC50) was76.62μgml-1,42.52μgml-1,&35.93μgml1,respectively. For the Reducing Power Assay, the ascorbic acid, AMEGW, and MEPQ (IC50)values were, in that order, 0.80μgml-1,0.47μgml-1,&0.38μgml-1. The IC50 values of AMEGW,MEPQ, and ascorbic acid for their ferrous ion chelating activity were 45.23μgml-1,47.57μgml 1,&71.86μg/ml,respectively. The NItric oxide scavenging activity (IC50)of ascorbic acid for AMEGW,MEPQ, and ascorbic acid were 71.925μg/ml,52.99μgml-1,&57.41μgml 1,respectively.Conclusion : These findings implied that, in comparison to MEPQ,Globba Winitii possessed noticeably greater antioxidant capacity