Daya Hambat Ekstrak Daun Lidah Buaya (Aloe Vera L.) Terhadap Pertumbuhan Isolat Klinis Bakteri Streptococcus β Hemolyticus In Vitro
Handayu Ganitafuri - G0007079 - Fak. Kedokteran
Objective: To identify the inhibition rate of aloe vera leaves extracts on the growth of Streptococcus β hemolyticus. Method: This was a laboratory experimental study (post test only with control group design) with non-probability sampling technique which was consecutive sampling. Subjects were clinically isolated Streptococcus β hemolyticus standardized with 0.5 Mc Farland. Diffusion method was applied to test the sensitivity of bacteria on blood agar plate using ceftriaxone and sterile distilled water as positif and negative controls, respectively. Results: Kruskal Wallis Test and Mann-Whitney showed that there were significant differences (p < 0.05) of the inhibition rate between whole groups. However, there was no significant difference between 75% and 100% extract concentration with ceftriaxon (p> 0.05). Conclusion: There is a difference of the inhibition of Aloe vera leaves extract at concentration of 25%, 50%, 75% and 100% on the growth of Streptococcus β hemolyticus. At the concentration of 75% and 100%, the inhibition rates are similar to 10 µg ceftriaxon antibiotics.