Journal Name:
- Advance Research in Pharmaceuticals and Biologicals
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Abstract (2. Language):
In present study the antimicrobial activity of various parts of plants Ipomoea palmeta, Parthenium, and Lantana camara
and Catharanthus roseus against E. coli, Pseudomonas sp. and Streptococci sp. Root, leave, flower and stem of plants
collected, dried and extract preparation was done in two different solvent methanol and ethanol. Results of
antimicrobial assay shown that ethanol extract of various plants have more antibacterial activity as compare to
methanol extract. Ethanol extract of Ipomoea palmeta root (10.0mm), Parthenium sp. flower (11.0mm), Catharanthus
roseus stem( 10mm) and Lantana camara leaf (20mm) were shown maximum zone of inhibition against Streptococci,
than Pseudomonas whereas less effective against E. coli. Only methanol extract of Parthenium sp. stem shown maximum
zone of inhibition against E. coli (15mm). The result of this work indicates that the differences in the zones of inhibition
of different plants extracts might be related to the susceptibility of each test organisms to the extracts tested. These
plants cannot ingested and cytotoxic but they have high microbial activity due to their alkaloid content that why it can
be used for ointment for external uses, in some where as anti tumor and other traditional medicines.
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