Investigation on Antioxidant Activities of Six Indigenous Plants of Bangladesh

3 Abstract: In the present stud y, t he antioxidant p otential of m ethanolic extracts o f t he leaves o f Aegle marmelos C orr.(Local N ame- B el), Abroma augus ta Li nn (Local N ame- U lot K ambal), L agerstroemia speciosa (Local N ame-Jarul), Cassia f istula (Local Name-Bador Lathi), Anthocephalus ch inensis (Local Name- Kadam), Syzygium cumini Skeel (Local Name- Jam), was evaluated. The extracts were investigated for i ts antioxidant activity using hydro gen donation ass ay method. The ext racts showed significant antioxidant activities in hydrogen donation assay compared to t he standard a ntioxidant (Ascorbic Acid) in a dose dependent m anner. A ll the extracts sh owed potent antioxidant ac tivity, of wh ich the methanolic 50 extract o f Abroma augus ta Li nn. demonstrated the strongest antioxidant activity with the IC value of 51.9786mg ml . T he other e xtracts o f p lants a lso showed significant an tioxidant ac tivity. -1