Table 1.
Fatty acid composition (%) of Tryptic Soy 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 | 50.7 | 47.1 | 50.0 | 34.1 | 30.6 | 32.2 | 23.4 |
| IFAodd 2 | 17.0 | 20.2 | 19.3 | 25.6 | 26.8 | 27.9 | 38.4 |
| IFAeven 3 | 4.1 | 6.6 | 4.4 | 3.1 | 5.1 | 3.9 | 2.7 |
| AFA 4 | 28.2 | 25.9 | 25.6 | 36.9 | 37.0 | 35.5 | 35.2 |
| SCUFA 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Total BCFAs | 49.3 | 52.7 | 49.3 | 65.6 | 68.9 | 67.3 | 76.3 |
| BCFA:SCFA | 0.97 | 1.12 | 0.99 | 1.93 | 2.25 | 2.09 | 3.25 |
| AFA:IFA | 1.34 | 0.97 | 1.08 | 1.29 | 1.16 | 1.12 | 0.86 |
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.