Sensitivity of microorganisms associated with jewelries and wristwatches to some detergents
Journal Title: Annals of West University of Timisoara, ser. Biology - Year 2016, Vol 19, Issue 1
Abstract
Sensitivity of microorganisms isolated from jewelries and wristwatches worn by students of Michael Okpara University of Agriculture, Umudike to some detergents: Omo, Aerial and Klin were investigated using agar well diffusion method. A total number of 40 jewelries were examined for the presence of bacteria and fungi using standard microbiological methods. The microorganisms isolated were Staphylococus aureus, Proteus, Pseudomonas sp., Streptococcus sp., Escherichia coli and Bacillus sp., for bacteria and Aspergillus sp., Trichophyton sp., Pencillium sp., Microsporum sp. and Yeast for fungi. Staphylococcus aureus had the highest percentage occurrence in wristwatches, bracelets and jewelries. This was attributed to it being a normal flora of the human skin, while Proteus had the least occurrence. The percentage occurrences of the fungal isolates were generally low, with Yeast having the highest percentage occurrence and Penicillium sp. having the least percentage occurrence. Amongst the three test detergents, Omo showed highest antibacterial activity while Klin gave the least antibacterial activity on the test bacterial isolates. Staphylococcus aureus showed the highest sensitivity to Omo while Bacillus sp. showed the least sensitivity to Omo. Escherichia coli showed the highest sensitivity to Aerial while Streptococcus sp. gave the least sensitivity. Proteus showed the highest sensitivity to Klin while Staphylococcus aureus gave the least sensitivity. Minimum Inhibitory Concentrations ranged from 25mg/ml to 50mg/ml and 100mg/ml. Yeast showed the highest sensitivity to Omo. Microsporum sp. gave the highest sensitivity to Aerial. Yeast showed the highest sensitivity to Klin. Penicillium sp. gave the least sensitivity to the three detergents. Inhibitory activity demonstrated by these detergents indicates that they can be employed as sanitizing agents for jewelries.
Authors and Affiliations
Kelechi Mary UKAEGBU-OBI, Chijioke Ethel ONWUAKOR, Chioma Vivian OBIDIKE
Keywords
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