Table 2. Antibacterial activities of CYA or OLA against E. coli strains under aerobic and anaerobic conditions.
(μg/ml) | |||||||||
---|---|---|---|---|---|---|---|---|---|
E. coli strains | Serotype | CYA | OLA | ||||||
Aerobic | Anaerobic | Aerobic | Anaerobic | ||||||
MIC | MBC | MIC | MBC | MIC | MBC | MIC | MBC | ||
Control | |||||||||
ATCC25922 | 8 | 128 | 1 | 2 | 16 | 128 | 2 | 8 | |
Swine-origin | |||||||||
CVCC196 | O8:K87, K88ac | 32 | 64 | 2 | 8 | 16 | 128 | 4 | 8 |
CVCC216 | O8:K87, K88ad | 32 | 64 | 4 | 16 | 32 | 128 | 8 | 16 |
CVCC220 | O101:K32 | 32 | 128 | 2 | 8 | 16 | 128 | 4 | 8 |
CVCC223 | O141:K99 | 32 | 64 | 1 | 8 | 16 | >128 | 2 | 16 |
CVCC224 | O149:K91, K88ac | 32 | 64 | 2 | 16 | 32 | 128 | 4 | 8 |
CVCC1500 | O149:K88ac | 32 | 128 | 4 | 8 | 32 | 128 | 8 | 16 |
CVCC1502 | O9:K88 | 32 | 128 | 4 | 16 | 32 | 64 | 4 | 16 |
CVCC1513 | O101:K99 | 32 | >128 | 1 | 8 | 16 | 128 | 2 | 8 |
CVCC1514 | O45:K99 | 32 | 128 | 0.5 | 16 | 8 | 16 | 2 | 8 |
CVCC1519 | O139 | 32 | >128 | 2 | 32 | 32 | 128 | 8 | 16 |
Chicken-origin | |||||||||
CVCC1496 | O139:K+ | 32 | 128 | 2 | 32 | NA | NA | NA | NA |
CVCC2943 | O1 | 16 | 128 | 1 | 4 | 16 | 128 | 4 | 16 |
Ae1 | 32–64 | 128 | 4 | 32 | NA | NA | NA | NA |