Table 2.
Changes in the fatty acid composition of strain CM4A in the presence of 2.0% and 2.5% butanol
| Fatty acida | Fatty acid compositionb (%) of strain CM4A grown with: |
||
|---|---|---|---|
| No solvents | 2.0% butanol | 2.5% butanol | |
| C9:1c | ND | ND | 1.1 ± 0.3 |
| C14:0 | 5.7 ± 0.2 | 6.9 ± 0.6 | 6.6 ± 0.2 |
| C14:1ω7c | 0.6 ± 0.1 | 0.8 ± 0.1 | ND |
| C15:0 | 0.1 ± 0.0 | 0.1 ± 0.0 | ND |
| C16:0 | 35.7 ± 1.3 | 41.0 ± 0.8 | 45.8 ± 0.7 |
| C16:1c | ND | ND | 0.9 ± 0.0 |
| C16:1ω7c | 8.9 ± 0.2 | 9.7 ± 0.4 | 7.9 ± 0.3 |
| C18:0 | 1.9 ± 0.1 | 1.2 ± 0.0 | 1.7 ± 0.2 |
| C18:1ω7c | 46.4 ± 1.5 | 38.5 ± 1.6 | 33.6 ± 0.4 |
| Cyclo-C19:0 | 0.6 ± 0.1 | 1.8 ± 0.2 | 2.4 ± 0.1 |
| Total saturated fatty acidsd | 43.4 ± 1.4 | 49.2 ± 1.3 | 54.1 ± 0.5 |
a
Abbreviations: CX:YωZc, a fatty acid containing X carbon atoms with Y double bonds at position Z, counted from the methyl terminus in the cis configuration; cyclo-C19:0, cis-11,12-methylene octadecanoic acid.
b
Each fatty acid composition value is given as a percentage of the whole-cell lipids. Values are means ± standard deviations of three independent measurements. ND, not detected.
c
The double-bond positions of C9:1 and C16:1 were not identified.
d
Myristic acid (C14:0), pentadecanoic acid (C15:0), palmitic acid (C16:0), and stearic acid (C18:0) were added together to calculate total saturated fatty acids.