Table 4.
Incubation under the appropriate growth conditions.
| Organisms | Selective medium agar | Atmosphere | Incubation |
|---|---|---|---|
| Lactobacillus gasseri | Human Blood Bilayer Tween | Anaerobic | 35 ± 2 °C, 48 ± 2 h |
| Gardnerella vaginalis | Human Blood Bilayer Tween | Anaerobic | 35 ± 2 °C, 48 ± 2 h |
| Prevotella bivia | Laked Blood Kanamycin-Vancomycin | Anaerobic | 35 ± 2 °C, 48 ± 2 h |
| Escherichia coli | MacConkey Medium | Aerobic | 35 ± 2 °C, 24 ± 2 h |
| Staphylococcus aureus | Mannitol Salt Agar | Aerobic | 35 ± 2 °C, 48 ± 2 h |
| Candida albicans | Inhibitory Mould Agar with chloramphenicol and gentamycin | Aerobic | 35 ± 2 °C, 48 ± 2 h |
All selective media were obtained from Remel Microbiology Products (Fisher Thermo Scientific, USA).
Before plating on Human Blood Bilayer Tween, the respective aliquots were treated with 2 μg Lysostaphin (Sigma–Aldrich, USA) for 10 min at 37 °C. Pilot studies demonstrated that this procedure prevented the overgrowth of S. aureus on HBT without affecting growth of G. vaginalis and L. gasseri (data not shown).