Abstract
Flowers and shoots of Peltophorum pterocarpum backer (Caesalpinaceae) were extracted with five different solvents (petroleum ether, benzene, chloroform, acetone and ethyl alcohol). They all exhibited a varied degree of antibacterial activities against a wide range of gram-positive and gram-negative bacteria. The flowers of P. pterocarpum were found to have more potent ingredients in action as compared to the shoots part. Among all extracts, ethyl alcohol extracts were the most potent. Amongst gram-positive bacteria, the 100 % antibacterial activity was exhibited in flowers and 83.33 % in shoots while amongst gram-negative bacteria, 91.67 % was depicted in flower and 83.33 % in shoots. Ag category zone of inhibition was exhibited only by ethyl alcohol extract amongst both groups of organisms by flowers and shoots. Minimum inhibitory concentration of the flower and the shoot extract was found in the range of 2.5 mg/ mL to 1.25 mg/ mL against gram-negative and gram-positive bacteria.
Original language | English |
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Pages (from-to) | 170-175 |
Number of pages | 6 |
Journal | Journal of the Chemical Society of Pakistan |
Volume | 29 |
Issue number | 2 |
Publication status | Published - Apr 2007 |
Externally published | Yes |