PERBEDAAN DAYA HAMBAT MINYAK ATSIRI DAUN KENIKIR (Cosmos caudatus Kunth.) DAN DAUN KEMANGI (Ocimum basilicum) TERHADAP PERTUMBUHAN Enterobacter aerogenes

Background :Diarrhea is an endemic disease in Indonesia which is often accompanied by death. One of the causes of diarrhea is the bacteria Enterobacter aerogenes. One of the plants that can be used as an antimicrobial is kenikir leaves (Cosmos caudatus Kunth.) And kemangi leaves (Ocimum basilicum) because they contain antibacterial compounds, one of which is essential oils. To find out the difference in the antibacterial potential produced from kenikir leaf essential oil and kemangi leaf essential oil, it is necessary to test the antibacterial sensitivity against the growth of Enterobacter aerogenes bacteria. Destination : Knowing the difference in the inhibition, sensitivity, effectiveness and avarage diameter of the inhibition zone of kenikir leaves (Cosmos caudatus Kunth.) Essential oil and kemangi leaves (Ocimum basilicum) essential oil on the growth of Enterobacter aerogenes. Method :This research is a true experiment research with research design Post-test Only Control Group Design.The research subjects were Enterobacter aerogenes bacteria culture aged 1x24 hours old and the objects of research was kenikir leaves essential oil and kemangi leaves essential oil. The antibacterial inhibition test used the well diffusion method. Result: The average comparison of the results of measuring the diameter of the inhibition zone of kenikir leaves essential oil, kemangi essential oil and tetracycline antibiotics were 15,47 mm, 13,95 mm and 25,27 mm. The mean difference of kenikir leaves essential oil was -9,8 mm (-14,47%) and -11,32 mm (-44,79%). The sensitivity of kenikir leaves essential oil and kemangi leaves essential oil is weak. The effectiveness of kenikir leaves essential oil is less effective and kemangi essential oil is not effective. Different test results there was a difference in the mean diameter of the inhibition zone of kenikir leaves essential oil and kemangi leaves essential oil on the growth of Enterobacter aerogenes. Conclusion: There is difference in the inhibition power of kenikir leaves (Cosmos caudatus Kunth.) essential oil and kemangi leaves (Ocimum basilicum) essential oil on the growth of Enterobacter aerogenes. Keywords : Kenikir Leaves Essential Oil, Kemangi Leaves Essential Oil, Enterobacter aerogenes, Inhibitio