Antimicrobial Activity of Rose petals Extract Against Some Pathogenic Bacteria
AbstractRose has influenced cultures aesthetically, economically, medically, religiously and spiritually since humankind could smell and appreciate its fragrance. The high concentration of anthocyanins in the petals gives credence to these indications. They are expected to synthesize a variety of secondary metabolites capable of providing them protection against the infectious agents. The intention of this study was to evaluate the profile of antibacterial activities in rose petals. Result data showed that low dilution of alcoholic extract showed higher antimicrobial activity as compare to high dilution. Petroleum ether extract showed maximum 29 mm zone of inhibition for Pseudomonas aeruginosa as compare to other bacterial strains. Alcoholic extract showed higher inhibitory effect on Streptococcus pneumoniae (30mm), Enterobacter aerogens 28 mm, Staphylococcus epidermidis 25 mm, Bacillus subtilis 30 mm, Pseudomonas Aeruginosa 32 mm. aqueous extract showed higher inhibition against E.coli (21 mm), Enterobacter aerogens (25mm) and Bacillus subtilis (28 mm) as compare to other bacterial strains. Analysis showed that when comparing the antimicrobial activity of Rose petals with control antibiotic, the zone of inhibition was higher to antibiotic at the highest concentration, in the case of Streptococcus pneumoniae and Pseudomonas aeruginosa. Study showed that the average relative antimicrobial activity was found higher with alcoholic extract (25mm) as compare to aqueous (19mm) and petroleum ether (18mm). Statistical data analysis showed that, petroleum ether showed low average relative antimicrobial activity among all solvents. The finding of antibacterial activity in rose petals in this study indicates its use of petals of rose flowers to cure diarrhoeal diseases, opportunistic infection and skin infection
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