Affiliations: [a] Department of Biotechnology, Bodoland University, Kokrajhar, Assam, India
| [b] Department of Food Engineering and Technology, Central Institute of Technology, Kokrajhar, Assam, India
| [c] Department of Chemistry, Bodoland University, Kokrajhar, Assam, India
Corresponding author: Sanjay Basumatary, M.Sc., Ph.D., Department of Chemistry, Bodoland University, Kokrajhar-783370, Assam, India. Tel.: +91 9954336448; email@example.com
Abstract: The aim of this study was to examine the phytochemicals and antioxidant properties of eleven wild edible plants from Assam of North-East India. The phytochemical study indicated the presence of several medicinally active compounds in the methanolic extracts of plants. Evaluation of antioxidant activities were done by DPPH, ABTS, H2O2 and FRAP assays. The investigation revealed antioxidant activities with DPPH IC50 value ranging from 135.0±1.49 μg/mL (L. javanica) to 516.34±2.52 μg/mL (B. lanceolaria), ABTS IC50 value from 74.3±0.29 μg/mL (T. angustifolium) to 437.77±3.93 μg/mL (D. cordata), H2O2 IC50 value from 20.37±0.01 μg/mL (B. lanceolaria) to 376.75±14.12 μg/mL (P. perfoliatum), and the FRAP value from 64.76±7.43 μM TE/g (D. cordata) to 799.28±7.14 μM TE/g (L. javanica). The maximum total phenolic content (TPC) was obtained in the extract of E. fluctuans (269.49±2.96 mg GAE/g dry extract) and the lowest being in C. sinensis (26.96±9.81 mg GAE/g dry extract). S. media extract had the lowest (0.23±0.10 mg QE/g dry extract) total flavonoid content (TFC) and the maximum being in P. perfoliatum (4.34±1.03 mg QE/g dry extract). Pearson’s correlation study of the plants indicated a strong positive correlation of DPPH assay with ABTS assay. A positive correlation of FRAP with TFC, H2O2 with FRAP, TPC and TFC, and TPC with TFC were also seen in this study. These plants could be supportive in stopping or slowing the growth of oxidative stress related diseases.