DAYA HAMBAT EKSTRAK KULIT PISANG RAJA (Musa X Paradisiaca AAB.) TERHADAP PERTUMBUHAN BAKTERI Escherichia Coli SECARA IN VITRO

Abstract

Diarrhea is a condition of a person with more frequent bowel movements in a day that ranks the 13th cause of death. Diarrhea can be caused by bacteria, one of which is the bacterium Escherichia coli. The use of natural medicine is considered safer than synthetic drugs. Banana peel (Musa X Paradisiaca AAB). Can be used as a natural medicine because it has antibacterial compounds. The purpose of this research is to know the antibacterial ability of banana peel extract to Escherichia coli bacteria. Research on the inhibition of banana peel extract on the growth of Escherichia coli bacteria was conducted from May to June 2017 in Laboratory Bacteriology Departement of Health Analysis Health Polytechnic of Surabaya. Examination of antibacterial power of banana peel extract using liquid dilution method. The concentration of banana peel extract used was 25%, 20%, 15%, 10%, 5% and 0%. Data analysis used for this research is qualitative analysis and then continued on statistical test of Non Parametric Kruskal-Wallis. The results of research of banana peel extract of liquid dilution method showed the value of MCC (Minimum Concentration Concentration) that is at concentration of 20% and the value of MKC (Minimum Kill Concentration) that is at 25% concentration indicated by presence or absence of colony growth on Mueller Hinton agar media. The existence of the inhibitory power generated by banana peel is due to the compound of flavonoids, tannins, saponins and alkaloids are antibacterial.
Keywords: banana peel extract (Musa X Paradisiaca AAB.), Escherichia coli, liquid dilution.