Table 1 OD (OD600 nm) scale levels used for classification of the tested isolates according to their biofilm formation capabilities (Mohamed et al. 2013)
From: Biofilm formation by Streptococcus mutans and its inhibition by green tea extracts
OD value | Biofilm formation |
|---|---|
OD ≤ 2* ODca | Weak biofilm producer |
2*ODc ≤ OD ≤ 4*ODc | Moderate biofilm producer |
4*ODc ≤ OD | Strong biofilm producer |