Dinçer, Tevfik Umut (2009) Comparison of the bactericidal effects of medical-level antiseptics used in medical institutions, commercial antibacterial soaps and regular commercial soaps on Staphylococcus aureus. Other thesis, TED ANKARA COLLEGE FOUNDATION HIGH SCHOOL.
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Abstract
The aim of this extended essay is to investigate the bactericidal properties of regular soap, antibacterial soap, and medical-level soap (that is used before surgeries) on the bacterium Staphylococcus aureus in lab conditions. My research question was: “Is there a significant mean difference among antiseptics used in medical institutions, commercial antibacterial soaps and regular commercial soaps in terms of their bactericidal effects on Staphylococcus aureus in laboratory conditions?” It was hypothesized that; there would be a significant mean difference in terms of efficiency between the groups. The medical-level antiseptic will be the most effective bactericidal agent against Staphylococcus aureus, followed by the commercial antibacterial soap, and finally the regular commercial soap. In order to test the hypothesis and to answer the research question, the Kirby-Bauer antibacterial testing method was used. Staphylococcus aureus population was cultured on Mueller-Hinton II agar plate in laboratory conditions. Filter paper discs soaked in solutions of antiseptics used in medical institutions (“medical-level soaps”), commercial antibacterial soaps and regular commercial soaps were inserted onto the agar. The diameters of the exclusion zones were compared. Data analysis is done to determine if there is a significant difference in terms of bactericidal property in between the groups. Resultantly, the filter paper disc soaked in medical-level soap formed the zone of exclusion with the largest diameter. It is followed by filter paper disc soaked in the commercial antibacterial soap. The filter paper disc soaked in the regular soap had the smallest diameter. ANOVA results revealed that there was a significant mean difference between medical-level soap, commercial antibacterial soap and regular soap in terms of their bactericidal effect on Staphylococcus aureus, with the medical-level soap being most effective, followed by commercial antibacterial soap, and regular soap the least effective in comparison.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | Supervisor: Sevim SARAL, IB Notu: A |
| Uncontrolled Keywords: | bactericidal properties, regular soap, antibacterial soap, medical-level soap, Staphylococcus aureus |
| Subjects: | Q Science > QH Natural history > QH301 Biology |
| Depositing User: | Kamil Çömlekçi |
| Date Deposited: | 12 Jun 2009 08:35 |
| Last Modified: | 12 Apr 2019 10:20 |
| URI: | http://tedprints.tedankara.k12.tr/id/eprint/49 |
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