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Abstract
The aqueous extract of the leaves of Eupatorium odoratum was screened for phytochemical constituents and found to contain tannins, phenols and saponin. The essential oil from the leaves was found to contain α-pinene (19.32%), cadinene (19.09%), (+)-camphor (15.46%), limonene (10.22%), β-caryophyllene (7.05%), and cadinol isomer (6.36%) as major constituents by GC/MS and comparison with authentic samples. The percentage yield of oil decreased with increase in the temperature of drying. The oil demonstrated antibacterial activity against Staphylococcus aureus and Escherichia coli.