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Antibacterial activity and cytotoxicity of extractives from Uvaria hamiltonii stem bark
K N Asha1, R Chowdhury, C M Hasan
1Faculty of Pharmacy, Department of Pharmaceutical Science, University of Dhaka, Dhaka 1000, Bangladesh.
Fitoterapia
|March 12, 2003
Abstract:
The extracts as well as piperolactum C, goniopedaline, 6beta-hydroxystigmasta-4,22-dien-3-one and a mixture of cis- and trans-4-hydroxymelleins obtained from Uvaria hamiltonii stem bark exhibited mild to moderate in vitro antibacterial activity. The results obtained were compared with a standard antibiotic, kanamycin. In a brine shrimp lethality bioassay the pet-ether, dichloromethane, methanol extracts and a major alkaloid, piperolactum C were found to exhibit mild to moderate cytotoxicity.