Medicinal plants rich in phenolic compounds possess numerous biological activities including antioxidants. Antioxidants are substances that help our body to defend against cell damages caused by various free radicals. Therefore, the need for the search of antioxidants from natural origin has been greatly felt in the recent years. In the present study, phytochemicals such as total phenols, flavanoids and tannins were estimated in different plant parts of diverse age group populations of Buteamonosperma. The phenolic content ranged from 1.53 ± 0.63 to 38.51± 7.65 mgg-1, flavanoids from 0.59 ± 0.17 to 20.48 ± 1.11 mgg-1, and tannins from 6.48 ± 1.05 to 175.25 ± 9.15 mgg-1 with a significant variation among different girth class populations. The phenols, flavanoids and tannins content in different plant parts were found to increase with the increase in girth class except in flowers for phenols and flavanoids. The maximum concentration of phenols and tannins was found in stem bark while flavanoid content was found to be the highest in flowers. The potential of these easily accessible sources of natural antioxidants can be exploited by the pharmaceutical, medical and health food industries.
