Pengaruh Metabolit Lactobacillus acidophilus ATCC 4356 terhadap Pembentukan Dual-Species Biofilm Streptococcus mutans ATCC 25175 dan Streptococcus sanguinis ATCC 10556 (Kajian In Vitro)
MICHA RANIA AURORA, Prof. drg. Tetiana Haniastuti, M.Kes., Ph.D.; drg. Heni Susilowati, M.Kes., Ph.D.
2024 | Skripsi | PENDIDIKAN DOKTER GIGI
Streptococcus mutans has been considered the major pathogen in the development of dental caries. Streptococcus sanguinis is a pioneering colonizer of the human oral cavity. Both of the bacteria are Gram-positive, facultative anaerobes, and are able to form a dual-species biofilm. Lactobacillus acidophilus is one of the probiotic strains that has antibiofilm properties from its metabolites, namely organic acids, bacteriocin, biosurfactant, and hydrogen peroxide. The aim of this study was to determine the effect of L. acidophilus ATCC 4356 metabolites on inhibiting the formation of dual-species biofilm of S. mutans ATCC 25175 and S. sanguinis ATCC 10556.
Inhibition test of dual-species biofilm formation was performed using 96-well microtiter plate incubated at 37 degrees Celsius for 24 hours. The test was carried out in four different groups with three metabolite concentrations (12.5%, 25%, and 50%) and 0.9% NaCl as negative control. After incubation, the wells were rinsed with 0.9% NaCl and stained with 0.1% crystal violet. The optical density was measured by a microplate reader (lambda=540 nm). Data were analyzed using One-way ANOVA test followed by the Post-hoc LSD test.
One-way ANOVA test showed a significant difference among groups in the inhibition of dual-species biofilm. L. acidophilus metabolites at 50% concentration had the highest biofilm inhibition compared to the lower concentrations. This study concludes that L. acidophilus ATCC 4356 metabolites could inhibit the formation of dual-species biofilm of S. mutans ATCC 25175 and S. sanguinis ATCC 10556 with 50% concentration having the highest effectivity.
Kata Kunci : Streptococcus mutans, Streptococcus sanguinis, dual-species biofilm, metabolit, Lactobacillus acidophilus, penghambatan biofilm