• S. Jamuna Mary
• S. Indira

Rhododendron arboreum Sm. ssp. nilagiricum (Zenker) Tagg (Ericaceae), a tree species endemic to the Palani Hills of Southern Western Ghats of peninsular India. The present investigations evaluate the antioxidant activity of acetone and ethanolic extracts of R. arboreum by using established antioxidant methods such as DPPH, Nitricoxide (NO), Hydroxyl scavenging, Metal chelating ability of ferrous ions, Total antioxidant activity, Reducing power assay and Superoxide scavenging assay (SOD. R. arboreum ssp. nilagiricum showed a dose-dependent percentage of inhibition on the scavenging assays. At a maximum concentration of 250 and 500 µg/ml of all the assays, both the extracts showed radical scavenging activities. This study determined that acetone and ethanolic extracts of R. arboreum ssp. nilagiricum showed better antioxidant potential which can be used in development of therapeutic phytomedicine.

Rhododendron arboreum, Free radical scavenging activity, Phytomedicine.

"ANTIOXIDANT ACTIVITY OF RHODODENDRON ARBOREUM SSP. NILAGIRICUM", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 2, page no.444-459, February-2019, Available :http://www.jetir.org/papers/JETIR1902C67.pdf

"ANTIOXIDANT ACTIVITY OF RHODODENDRON ARBOREUM SSP. NILAGIRICUM", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 2, page no. pp444-459, February-2019, Available at : http://www.jetir.org/papers/JETIR1902C67.pdf