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).