TABLE 2.
Degree of saturation (saturated/unsaturated ratio), average acyl chain length (numbers of C atoms), and cis/trans ratio of fatty acids in Rhodococcus sp. strain Q15 cells grown on different carbon sources at 24 or 5°C
| Carbon source | Temp (°C) | Degree of satu-ration (saturated/ unsaturated ratio) | 24°C/5°C ratio of saturation | Average acyl chain length | cis/trans ratioa |
|---|---|---|---|---|---|
| Glucose-acetate | 24 | 1.35 | 4.2 | 17.2 | 42.6 |
| 5 | 0.32 | 17.2 | 32.2 | ||
| Hexadecane | 24 | 1.92 | 2.3 | 15.9 | 29.3:0 |
| 5 | 0.83 | 16.1 | 13.2 | ||
| Diesel fuel | 24 | 3.33 | 2.1 | 16.6 | 13.3:0 |
| 5 | 1.56 | 17.6 | 46.9 |
a
Determining the cis/trans ratio for the fatty acids obtained from hydrocarbon-grown cells was possible only for fatty acids derived from cells grown at 5°C, since no trans fatty acids were detected in the lipids which were obtained from cells grown at 24°C.