Sideritis euboea
Table 13 provides the MIC and MBC values for the ethyl acetate extract
against all tested bacterial and fungal strains. The MIC values ranged
from 0.15 mg / ml (P. gingivalis , P. intermedia , P.
micra ) to 2.50 mg / ml (S. mutans , S. sobrinus ). For
99.9% bacterial strain reduction, concentrations ranged from 0.15 mg /
ml (P. gingivalis ) to 2.50 mg / ml (S. aureus ). However,E. coli , E. faecalis , and C. albicans did not
appear to be significantly affected by the extract. Additionally,S. mutans and S. sobrinus were not eradicated by the
tested concentrations of the S. euboea extract.
In the biofilm plate assay, the minimal concentration required to
counteract biofilm production was determined to be 5.00 mg / ml, as
shown in Figure 3. Concentrations of at least 2.50 mg / ml were
categorized as C2, while lower concentrations did not influence biofilm
formation (C3).