Table 2.
Cellular fatty acid composition of R. ruber S103 cultivated in different media.
| Fatty acid | Content (% dry weight) | ||
|---|---|---|---|
| 0.25xLB | 0.5%MK | 100%CW | |
| Saturated | |||
| C10:0 | – | – | 0.64 |
| C10:0 iso | – | – | 0.65 |
| C12:0 | 0.11 | 0.16 | 0.39 |
| C13:0 | 0.05 | 0.08 | – |
| C14:0 | 3.41 | 3.90 | 4.53 |
| C15:0 anteiso | 0.06 | 0.04 | 0.09 |
| C16:0 | 31.14 | 39.23 | 43.96 |
| C16:0 iso | 0.06 | 0.12 | – |
| C16:0 3-OH | – | – | 0.08 |
| C16:0 10-methyl/C17:1 iso ω9c* | 0.97 | 1.80 | – |
| C16:0 N alcohol | – | – | 0.57 |
| C17:0 | 2.89 | 1.84 | 1.68 |
| C17:0 anteiso | 0.07 | 0.26 | 0.14 |
| C17:0 iso | – | 0.16 | – |
| C17:0 iso 3-OH | – | – | 0.38 |
| C17:0 10-methyl | 0.84 | 0.69 | 0.12 |
| C18:0 | 1.21 | 2.42 | 10.35 |
| C18:0 3-OH | 0.07 | – | 0.32 |
| C18:0 10-methyl | 11.76 | 13.54 | 1.75 |
| C19:0 | – | – | 0.18 |
| C20:0 | 1.03 | 0.54 | 0.82 |
| C20:0 iso | 0.09 | – | – |
| Total | 53.76 | 64.78 | 66.65 |
| Unsaturated | |||
| C15:1 anteiso A | – | – | 0.31 |
| C15:1 ω5c | 0.32 | 0.13 | – |
| C15:1 ω8c | 0.15 | 0.20 | – |
| C16:1 ω7c alcohol | – | – | 0.63 |
| C17:1 ω8c | 2.71 | 1.62 | 0.56 |
| C17:1 iso ω5c | – | – | 0.48 |
| C18:1 ω9c | 17.52 | 14.70 | 24.22 |
| C20:1 ω9c | – | – | 0.26 |
| C16:1 ω7c/ω6c | 22.96 | 16.77 | 6.73 |
| C19:1 ω11c/ω9c* | 2.30 | 1.48 | – |
| C19:1 ω7c/ω6 c * | 0.29 | 0.17 | – |
| C17:1 anteiso ω9c | – | 0.15 | 0.15 |
| Total | 46.25 | 35.22 | 33.34 |
| Sat./Unsat. ratio | 1.16 | 1.84 | 2.00 |
*Represents groups of two fatty acids that could not be separated using the MIDI system.
OH: position of hydroxyl group from the acid end; ω: methyl end of fatty acid;
iso/anteiso: branched fatty acids; c: cis configuration of the double bound.