Method: Aqueous ethanolic bark extract (AEBE) of T. muelleri (Tmu AEBE) was Soxhlet extracted and condensed using Rotovap. Different weighing concentration (5-50 µg/mL) of Tmu AEBE were experimented for antioxidant potential, against synthetic antioxidant- Ascorbic acid. DPPH Free Radical Scavenging Activity (FRSA) was experimented by Blois method while NO FRSA was experimented by Nims et al. method. Half maximum effective concentration (EC₅₀) and its inverse called as Antiradical power (ARP) was also calculated for the first time for T. muelleri.

Results: FRSA of Tmu AEBE obeyed Concentration dependent expression following Non Linear progression. These DPPH & NO FRSA results were expressed as % Free Radical Scavenged (%). NO FRSA results were expressed as Mean ± S. D. of three replicates (n=3) and analyzed statistically using One way ANNOVA. Quantal concentration dependent Radical Scavenging curves were processed for calculating EC₅₀ (expressed as µg/mL) using Origin Pro 8.5.

Conclusion: Phytoconstituents constituting Tmu AEBE constituted to DPPH & NO Free Radical Scavenging Potential, in-vitro. Thus these phytoconstituents will be structured using modern analytical instrumentations and their Antioxidant capacities will be Bioprospected, individually.