Table 4 Zones of inhibition of the extracted EOs from Melaleuca subulata (Cheel) Craven leaves against reference skin-related microbial pathogens in comparison to standard antibiotics using agar well diffusion assay
Reference strains | Tested EOs/ Conc. µL/mL | Tested antibiotics/ Conc. µg/mL | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
HD | SF | C | CN | CEC | FOX | |||||
5 | 10 | 20 | 5 | 10 | 20 | 30 | 10 | 30 | 30 | |
Gram positive Bacteria | ||||||||||
S. aureus (ATCC 25923) | 12 mm | 17 mm | 20 mm | 18 mm | 20 mm | 28 mm | 13 mm | − | − | − |
S. pyogenes (ATCC 12344) | 7 mm | 8 mm | 12 mm | 19 mm | 24 mm | 29 mm | 9 mm | 10 mm | − | − |
C. perfringens (ATCC 13124) | Nz | 12 mm | 18 mm | 24 mm | 28 mm | 31 mm | 18 mm | 12 mm | − | − |
Gram negative Bacteria | ||||||||||
P. aeruginosa (ATCC 9027) | Nz | Nz | Nz | Nz | Nz | Nz | 9 mm | − | − | − |
10% DMSO (-ve control) | Nz | Nz | Nz | Nz | Nz | Nz | − | − | − | − |