Table 2.
Fatty acid composition (%) of Mueller–Hinton broth-grown coagulase-negative staphylococcal species.
| Fatty Acids | Cluster Groups | ||||||
|---|---|---|---|---|---|---|---|
| Auricularis | Epidermidis | Haemolyticus | Saprophyticus | ||||
| S. aureus | S. auricularis | S. capitis | S. epidermidis | S. haemolyticus | S. hominis | S. saprophyticus | |
| SCFA 1 | 19.0 | 37.2 | 16.5 | 22.0 | 20.6 | 18.0 | 17.9 |
| IFAodd 2 | 15.3 | 14.7 | 21.6 | 16.7 | 21.1 | 19.5 | 24.5 |
| IFAeven 3 | 4.0 | 10.5 | 2.2 | 2.3 | 2.3 | 2.9 | 2.5 |
| AFA 4 | 61.7 | 37.6 | 59.3 | 59.0 | 56.0 | 59.4 | 55.2 |
| SCUFA 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Total BCFAs | 81.0 | 62.8 | 83.1 | 78.0 | 79.4 | 81.8 | 82.2 |
| BCFA:SCFA | 4.26 | 1.69 | 5.05 | 3.54 | 3.86 | 4.56 | 4.59 |
| AFA:IFA | 3.12 | 1.49 | 2.49 | 3.10 | 2.39 | 2.65 | 2.05 |
1 SCFA, straight-chain fatty acid; 2 IFAodd, iso fatty acid with odd number of carbon atoms; 3 IFAeven, iso fatty acid with even number of carbon atoms; 4 AFA, anteiso fatty acid; 5 SCUFA, straight-chain unsaturated fatty acid; BCFAs, branched-chain fatty acids; BCFAs comprise IFAodd, IFAeven, and AFA.