CHED 1281 |
| The hexane, acetone and methanol extracts of the aerial parts of seven Hypericum species (canadense, densiflorum, ellipticum, gentianoides, mutilum, prolificum, punctatum) were evaluated for their in vitro antibacterial activity against Staphylococcus aureus and Bacillus subtilis. The methanol extracts were investigated for radical scavenging activity of the DPPH radical. The hexane and acetone extracts of the plants showed strong inhibition of bacterial growth at a concentration of 25 mg/mL, whereas the methanol extracts showed little or no activity. The methanol extracts showed 50-75% scavenging of the DPPH radical at a concentration of 1 mg/mL. |
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Undergraduate Research Poster Session: Medicinal Chemistry
2:00 PM-4:00 PM, Monday, April 7, 2008 Morial Convention Center -- Hall A, Poster
Division of Chemical Education |