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Minimal bactericidal concentration (MBC, µg·mL−1) of the Skeletonema marinoi ethanol extracts measured after photo-illumination of bacterial planktonic cells with white light (total fluence of 25 J·cm−2), or in the absence of illumination (control at dark). All experiments were performed in triplicate.
| MBC White Light (µg·mL−1) |
MBC Dark (µg·mL−1) |
|
|---|---|---|
| C. acnes | 6 | >1000 |
| S. aureus | 63 | >1000 |
| S. epidermidis | 63 | >1000 |
