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Antibacterial activity of aqueous and alcoholic extracts of 34 Indian medicinal plants against some Staphylococcus species

Thirty-four Indian medicinal plants belonging to 28 different families were screened for potential antibacterial activity against 3 Staphylococcus species, namely Staphylococcus aureus, Staphylococcus epidermidis, and Staphylococcus subflava. | Turk J Biol 32 (2008) 63-71 © TÜB‹TAK Antibacterial Activity of Aqueous and Alcoholic Extracts of 34 Indian Medicinal Plants against Some Staphylococcus Species J›gna PAREKH, Sumitra V. CHANDA Phytochemical, Pharmacological and Microbiological Laboratory, Department of Biosciences, Saurashtra University, Rajkot, 360 005, Gujarat - INDIA Received: 20.07.2007 Abstract: Thirty-four Indian medicinal plants belonging to 28 different families were screened for potential antibacterial activity against 3 Staphylococcus species, namely Staphylococcus aureus, Staphylococcus epidermidis, and Staphylococcus subflava. Antibacterial activity of aqueous and alcoholic extracts was performed by agar disc diffusion method and agar well diffusion method. The alcoholic extracts were more active than aqueous extracts for all the plants studied. The most susceptible bacterium was S. aureus. The methanol extract of Woodfordia fruticosa showed the best antibacterial activity. The in vitro susceptibility testing of the studied staphylococcus strains was done against standard antibiotics. Key Words: Medicinal plants, antibacterial activity, Staphylococcus species Otuzdört adet Hindistan’a ait T›bbi Bitkinin S›v› ve Alkolik Ekstrakt›n›n Baz› Staphylococcus Türlerine Karfl› Antibakteriyal Aktivitesi Özet: Hindistan’da yetiflen Yirmi sekiz farkl› familyaya ait 34 farkl› t›bbi bitkinin üç Staphylococcus species viz. Staphylococcus aureus, Staphylococcus epidermidis, Staphylococcus subflava bakterisi üzerine s›v› alkolik ektraktlar›n antibakteriyal aktivitesi agar disk diffüzyon ve agar well diffüzyon yöntemi ile çal›fl›lm›flt›r. En hassas bakteri S. aureus olarak belirlenmifltir. Woodfordia fruticosa bitkisinin methanol ekstrakt› iyi antibakteriyal aktivite göstermifltir. In vitro duyarl›l›k testi Staphylococcus türlerine karfl› standart antibiyotikler kullan›larak yap›lm›flt›r. Anahtar Sözcükler: T›bbi bitki, antibakteriyal aktivite, Staphylococcus species Introduction There is a continuous and