Efek Antibakteri Ekstrak Daun Katuk (Sauropus androgynus) terhadap Pertumbuhan Salmonella Typhi secara In Vitro
DOI:
https://doi.org/10.18196/mmjkk.v15i2.3755Keywords:
Salmonella typhi, Sauropus androgynus leaves extract, antibacteria, in vitro, Sauropus androgynus, antibakteriAbstract
Daun Katuk biasa digunakan sebagai obat tradisional terhadap berbagai macam penyakit termasuk mengobati diare. Kandungan daun Katuk yang diperkirakan berperan sebagai antibakteri adalah saponin, flavonoid dan tannin. Penelitian ini bertujuan untuk mengetahui efek antibakteri dari ekstrak daun Katuk secara in vitro. Metode yang digunakan adalah dilusi tabung yang terdiri dari dua tahap yaitu tahap penentuan Kadar Hambat Minimum (KHM) dan Kadar Bunuh Minimum (KBM). Konsentrasi ekstrak daun Katuk yang digunakan adalah 10%, 15%, 20%, 25% dan 30%, sedangkan konsentrasi S. typhi adalah 106 CFU/ml. Hasil menunjukkan bahwa KHM ekstrak daun Katuk terhadap S. typhi sebesar 25% dan KBM nya sebesar 30%. Uji Anova menunjukkan bahwa ekstrak daun Katuk secara signifikan menghambat pertumbuhan S. typhi (p = 0.000). Uji korelasi menggunakan regresi menunjukkan terdapat korelasi negatif antara konsentrasi ekstrak daun Katuk dengan jumlah koloni S. typhi (p = 0,000; r = - 0,800). Dapat disimpulkan bahwa ekstrak daun Katuk memiliki efek antibakteri terhadap S. Typhi. Semakin tinggi kosentrasi ekstrak daun Katuk, semakin rendah jumlah koloni.Katuk (Sauropus androgynus) leaves is used as a traditional medicine against various diseases include diarrhea. The estimated antibacterial substances of Katuk leaves are saponin, flavonoid and tannin. The aim of this research is to know antibacterial effect of Katuk leaves extract against Salmonella typhi in vitro. Antibacterial effect is determined by tube dilution method, which consists of two steps, namely the determination of Minimum Inhibitory Concentration (MIC) and Minimum Bactericide Concentration (MBC). The concentrations of Katuk Leaves extracts are 10%, 15%, 20%, 25%, and 30%. The concentration of S. typhi is 106 CFU/ml. The result shows that MIC and MBC of the Katuk leaves extract are 25% and 30% respectively. Anova test shows that Katuk leaves extract significantly inhibits the growth of S. typhi (p = 0,000). Correlation test by using regression shows that there is a negative correlation between the Katuk leaves extract concentration and the amount of S. typhi colony (p= 0,000; r = - 0,800). The conclusion is that Katuk leaves has antibacterial effect against S. typhi. The higher concentration of Katuk leaf extract, the lower the number of colonies
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