RESUMO
The present investigation is focused on antibacterial potential of infusion, decoction and essential oil of oregano (Origanum vulgare) against 111 Gram-positive bacterial isolates belonging to 23 different species related to 3 genera. Infusion and essential oil exhibited antibacterial activity against Staphylococcus saprophyticus, S. aureus, Micrococcus roseus, M. kristinae, M. nishinomiyaensis, M. lylae, M. luteus, M. sedentarius, M. varians, Bacillus megaterium, B. thuringiensis, B. alvei, B. circulans, B. brevis, B. coagulans, B. pumilus, B. laterosporus, B. polymyxa, B. macerans, B. subtilis, B. firmus, B. cereus and B. lichiniformis. The infusion exhibited maximum activity against B. laterosporus (17.5 mm mean zone of inhibition+/-1.5 Standard deviation) followed by B. polymyxa (17.0 mm+/-2.0 SD) and essential oil of oregano exhibited maximum activity against S. saprophyticus (16.8 mm+/-1.8 SD) followed by B. circulans (14.5 mm+/-0.5 SD). While all these tested isolates were found resistant to decoction of oregano.
Assuntos
Antibacterianos/farmacologia , Bactérias Gram-Positivas/efeitos dos fármacos , Origanum/química , Testes de Sensibilidade Microbiana , Óleos Voláteis/química , Óleos Voláteis/farmacologiaRESUMO
Present investigation is focused on antibacterial potential of aqueous infusions and aqueous decoctions of Emblica officinalis (amla) and Coriandrum sativum (coriander) against 345 bacterial isolates belonging to 6 different genera of Gram negative bacterial population isolated from urine specimens by employing well diffusion technique. Aqueous infusion and decoction of Emblica officinalis exhibited potent antibacterial activity against Escherichia coli (270), Klebsiella pneumoniae (51), K. ozaenae (3), Proteus mirabilis (5), Pseudomonas aeruginosa (10), Salmonella typhi (1), S. paratyphi A (2), S. paratyphi B (1) and Serratia marcescens (2) but did not show any antibacterial activity against Gram negative urinary pathogens.
Assuntos
Anti-Infecciosos Urinários/farmacologia , Coriandrum , Bactérias Gram-Negativas/efeitos dos fármacos , Phyllanthus emblica , Animais , Anti-Infecciosos Urinários/uso terapêutico , Escherichia coli/efeitos dos fármacos , Bactérias Gram-Negativas/isolamento & purificação , Klebsiella pneumoniae/efeitos dos fármacos , Testes de Sensibilidade Microbiana , Extratos Vegetais/farmacologia , Proteus mirabilis/efeitos dos fármacos , Pseudomonas aeruginosa/efeitos dos fármacos , Salmonella paratyphi A/efeitos dos fármacos , Salmonella paratyphi B/efeitos dos fármacos , Salmonella typhi/efeitos dos fármacos , Serratia marcescens/efeitos dos fármacos , Urina/microbiologiaRESUMO
Present investigation focused on antibacterial potential of aqueous decoction of black pepper (Piper nigrum L.), bay leaf (Laurus nobilis L.), aniseed (Pimpinella anisum L.), and coriander (Coriandum sativum L.) against 176 bacterial isolates belonging to 12 different genera of bacterial population isolated from oral cavity of 200 individuals. The disc diffusion technique was employed. Overall aqueous decoction of black pepper was the most bacterial-toxic exhibited 75% antibacterial activity as compared to aqueous decoction of bay leaf (53.4%) and aqueous decoction of aniseed (18.1%), at the concentration of 10 ml/disc. The aqueous decoction of coriander did not show any antibacterial effect against tested bacterial isolates.
