Activity of some plant extracts against multi-drug resistant human pathogens
No Thumbnail Available
Date
2009
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
Plants used for traditional medicine contain a wide range of substances which can be used to treat various infectious diseases. Hence, antibacterial activities of ethanolic extracts of 19 plant species were studied against multi-drug resistant clinical isolates using agar well diffusion method. Extracts of Liquidambar orientalis, Vitis vinifera, Rosmarinus officinalis, Punica granatum, Cornus sanguinea, Euphorbia peplus, Ecballium elaterium, Inula viscosa and Liquidambar orientalis showed broad-spectrum antibacterial activity with inhibition zones ranging from 8 to 26 mm. The most resistant organisms were Escherichia coli (E. coli) (Ampicillin-, amoxycillin- and sulfamethoxazole- resistant), Stenotrophomonas maltophilia (S. maltophilia) (Amoxycillin- and nalidixic acid-resistant) and Klebsiella pneumoniae (K. pneumoniae) (Ampicillin-, amoxycillin- and aztreonarn-resistant), and the most susceptible species were Staphylococcus aureus (S. aureus) (Penicillin G- and oxacillin-resistant), Streptococcus pyogenes (S. pyogenes) (Penicillin G-, eiythromycin- and clindamycin-resistant) and Pseudomonas aeruginosa (P aeruginosa) (Sulfamethoxazole- and novobiocin-resistant), respectively. Minimum Inhibitory Concentrations (MIC) of crude extracts were determined for the seven highly active plants showing activity against methicillin resistant S. aureus (MRSA), E. coli, P aeruginosa, S. pneumoniae and the reference bacteria (E. coli ATCC 11229 and Kocuria rhizophila ATCC 9341 NA). MICs of active extracts ranged from 8 to 14.2 mg/mL against one or other test bacteria. Copyright © 2009 by School of Pharmacy Shaheed Beheshti University of Medical Sciences and Health Services.
Description
Keywords
Artermisia arborescens extract , Carpobrotus acinaciformis extract , Citrus reticulata extract , Conyza canadensis extract , Cornus extract , Cornus sanguinea extract , Ecballium elaterium extract , Eucalyptus camaldulensis extract , Eucalyptus extract , Euphorbia extract , Euphorbia peplus extract , Hypericum perforatum extract , Inula viscosa extract , Liquidambar orientalis extract , Lonicera japonica extract , mirabilis jalapa extract , Nerium oleander extract , plant extract , Punica granatum extract , Pyracantha coccinea extract , Rosmarinus officinalis extract , thuja orientalis extract , unclassified drug , Vitis vinifera extract , antibacterial activity , Artemisia , article , Conyza , Cornus , Cornus sanguinea , ecballium elaterium , Escherichia coli , Euphorbia , euphorbia peplus , grape , Hypericum perforatum , Inula , inula viscosa , Klebsiella pneumoniae , Liquidambar , Liquidambar orientalis , mandarin , minimum inhibitory concentration , Mirabilis , multidrug resistance , nonhuman , pathogenesis , pomegranate , Pseudomonas aeruginosa , Pyracantha , rosemary , Staphylococcus aureus , Stenotrophomonas maltophilia , Streptococcus pyogenes , Thuja