Table 1 Results of filtration studies involving S. aureus, S. epidermidis, S. lugdunensis, E. coli and B. cereus grown in BHI broth and examined under different conditions of growth.
From: Filterability of staphylococcal species through membrane filters following application of stressors
Organism | Growth conditions | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Fresh cultures (109) | Old cultures (11 wks) (109) | 4°C (109) | 10% NaCl (108) | pH 5 (108) | VA 100 µg ml-1 (108) | Pen G 100 µg ml-1 (108) | ||||||||
0.22 µm | 0.45 µm | 0.22 µm | 0.45 µm | 0.22 µm | 0.45 µm | 0.22 µm | 0.45 µm | 0.22 µm | 0.45 µm | 0.22 µm | 0.45 µm | 0.22 µm | 0.45 µm | |
S. aureus | 1.7 ± 1.9 | 0.3 ± 0.6 | 0.1 ± 0.3 | 12.2 ± 36.3 | 6 ± 17 | 4 ± 6 | - | 38.5 ± 40.8 | - | 10.5 ± 11.4 | - | - | - | - |
S. epidermidis | - | 57.8 ± 53.6 | 0.1 ± 0.3 | 5.4 ± 15.2 | - | - | - | 3.9 ± 8.7 | - | 5.5 ± 5.5 | - | - | - | - |
S. lugdunensis | 0.7 ± 1.4 | 185.3 ± 46.4 | 0.4 ± 1.3 | 101.4 ± 247 | 23 ± 41 | 19 ± 40 | - | 166.3 ± 140.5 | - | 140.1 ± 112.9 | - | 23 ± 31.1 | - | - |
B. cereus | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
E. coli | - | - | - | - | - | - | - | - | - | - | - | - | - | - |