@article{Uzoechi_Nwachukwu_Njoku Obi_Nnagbo_Maduwuba_2017, title={Potentiation of Disinfectant Efficiency of Different Dilutions of Ethanol, Bleach and Phenolics against <i>Pseudomonas Aeruginosa </i>and <i>Staphylococcus Aureus</i>}, volume={5}, url={https://ajouronline.com/index.php/AJAS/article/view/4773}, abstractNote={&lt;div class=&quot;WordSection1&quot;&gt;&lt;p&gt;Ethanol, Bleach and Phenolics are three kinds of disinfectants which have been widely used in common laboratories.  In this study, a compared experiment on these three disinfectants efficiency was conducted against &lt;em&gt;Staphylococcus aureus and Pseudomonas aeruginosa&lt;/em&gt; using agar hole diffusion method.  Different concentrations of bleach (1%, 2%, 3%, 4% and 5%) were used on both organisms.  Also (50%, 60%, 70%, 85% and 95%) of ethanol as well as (5%, 10%, 20%, 25%, and 30%) Phenolics were used. Differences in concentrations tested was because, the original concentrations of the disinfectants differs. After 24 hours of incubation at 37&lt;sup&gt;0&lt;/sup&gt;C, the results showed that all the disinfectants inhibited the growth of the test organism in their concentrated forms.  The diameter of zone of inhibitions were measured around each well by using a ruler in millimeters, using different concentrations, their efficacies varied.  The results showed that 30% Phenolics had the best efficiency against both test organisms and 5% bleach had a better effect on &lt;em&gt;Staphylococcus aureus&lt;/em&gt; than &lt;em&gt;Pseudomonas aeruginosa&lt;/em&gt;, while ethanol showed least sensitivity. 70% concentration gave the highest effect on &lt;em&gt;Staphylococcus aureus&lt;/em&gt; as compared with &lt;em&gt;Pseudomonas aeruginosa&lt;span style=&quot;text-decoration: underline;&quot;&gt;.&lt;/span&gt;&lt;/em&gt;&lt;/p&gt;&lt;p&gt;&lt;strong&gt;            &lt;/strong&gt;&lt;/p&gt;&lt;/div&gt;&lt;strong&gt;&lt;br clear=&quot;all&quot; /&gt;&lt;/strong&gt;}, number={3}, journal={Asian Journal of Applied Sciences}, author={Uzoechi, A. U. and Nwachukwu, M. I. and Njoku Obi, T. N. and Nnagbo, P. C. and Maduwuba, M. C.}, year={2017}, month={Jun.} }