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Table 1 Optical densities and CFU measurements in the strain TK1402 biofilm cells and broth cultures

From: Outer Membrane Vesicles of Helicobacter pylori TK1402 are Involved in Biofilm Formation

  OD600 CFU (×109) CFU/OD600 (×109)
2-Day biofilma 0.141 ± 0.037 0.259 ± 0.202 1.860 ± 1.487
3-Day biofilma 0.258 ± 0.027 0.340 ± 0.230 1.614 ± 0.695
2-Day broth cultureb 0.939 ± 0.012 1.847 ± 0.318 1.966 ± 0.387
3-Day broth cultureb 1.075 ± 0.044 2.248 ± 1.170 2.151 ± 1.180
  1. a) the biofilm cells were scrapped by mechanical treatment into PBS. The cell suspensions were examined by optical densities and CFU were also calculated.
  2. b) the standard broth cultures of strain TK1402 in Brucella broth supplemented with 7% FCS were examined by optical densities and CFU.
  3. Data are shown as the mean value of the 3-independent experiments ± standard deviations.