Inhibitory effect and preliminary phytochemicalscreening of some ornamental plants against somebacteria pathogens

Akharaiyi, Fred Coolborn and Odiedi, Oke-Oghene Onyinnoyi and Johnson, jonathan Abidem and Oluwafemi, Funmilayo Stella Inhibitory effect and preliminary phytochemicalscreening of some ornamental plants against somebacteria pathogens. EurAsianJournalofBioSciences.

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Abstract

Background: Bacterial resistance to the drugs known for their treatment is on the increase, thereforesuggesting the need to search for dependable natural products as alternative for cure and prevention.Efforts in this regard have focused on plants because of their use historically and the large portionsof the world’s population relying on plants for the treatment of infectious and non-infectious diseases.Methods: Some ornamental plants’ extracts in compares with commercial antibiotics were testedin vitro on Salmonella typhi, Salmonella typhimurium, Staphylococcus aureus and Staphylococcusepidermidisfor medicinal values. Quantitative and qualitative phytochemicals; free radicalscavenging capacity, ferric reducing antioxidant property and hydroxyl radical scavenging of theplants’ extracts were determined by chemical methods.Results: Varied degrees of inhibition and in some cases resistance were observed with the extractson the four bacteria species. However, highest inhibition of 30.33±0.35 mm was recorded on Salmonella typhimurium, followed by S. epidermidis with zone of 30.00±0.00 mm both withH. crepitans extract. Cotrimozazole most inhibited Salmonella typhimurium with a zone of 29 mm and followed by ofloxacin with a zone of 27.33 mm on S. epidermidis. MIC activity of the extract wasbetween 12.5 – 50 mg/ml and MBC activity from 25 – 100 mg/ml.Conclusions: Valuableantibacterial effect of the plants’ extracts correlating with the phytochemicalsand antioxidants potentials, suggest the plants acceptability for folklore and could be of universalrecognition for handling diseases that plaque around us mostly in some urban and rural communitieswhere modern medicine are not affordable and accessible by the poor

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