The Effect of pH upon the Growth of Streptococcus salivarius
DOI:
https://doi.org/10.58445/rars.1064Keywords:
Streptococcus salivarius, pH, oral, oral microbiomeAbstract
S. mutans is a detriment to the oral microbiome leading to tooth decay and cavities. However, S. salivarius can produce alkaline to restrict the growth of S. mutans. Thus, to optimize the growth of S. salivarius, the present study analyzes the favorable pH level standards for reproduction of S. salivarius. It was hypothesized that environments with alkaline pH levels will disrupt a Streptococcus salivarius cells’ activity and hydrogen bonding. The hypothesis was not supported by the results. The independent variables were the pH levels and time, and the dependent variable was the growth of S. salivarius. Bacteria colonies grew in agar plate environments of pH 5, 6, 7, 8 and 10. Environments with pH 5, pH 6, and pH 10 were incapable of fostering bacteria colonies, while pH7 and pH8 colonies could.
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