Table 7.
FA composition of Chlamydomonas sp. JSC4 cultured under batch, two-stage, or salinity-gradient operation
| |
Chlamydomonas sp. JSC4 FA composition (%) |
||
|---|---|---|---|
| Batch | Two-stage | Salinity gradient | |
| Palmitic acid (C16:0) |
27.6 ± 0.3 |
30.7 ± 0.8 |
30.7 ± 0.5 |
| Palmitoleic acid (C16:1) |
3.2 ± 0.1 |
2.9 ± 0.1 |
2.7 ± 0.2 |
| Stearic acid (C18:0) |
3.1 ± 0.1 |
2.8 ± 0.2 |
2.6 ± 0.2 |
| Oleic acid (C18:1) |
26.6 ± 0.6 |
23.4 ± 0.1 |
22.8 ± 1.1 |
| Linoleic acid (C18:2) |
25.3 ± 0.3 |
25.1 ± 0.1 |
25.0 ± 0.3 |
| Linolenic acid (C18:3) |
5.4 ± 0.1 |
5.0 ± 0.1 |
5.4 ± 0.4 |
| C16 & C18 groups |
91.2 ± 1.3 |
89.9 ± 0.8 |
89.2 ± 0.4 |
| Lipid content (%) |
41.9 ± 1.8 |
46.1 ± 1.3 |
59.4 ± 0.7 |
| Lipid productivity (mg L-1 d-1) | 158.9 ± 7.6 | 183.9 ± 4.6 | 223.2 ± 2.1 |
The values are the mean ± standard deviation of three replicated experiments. (Light intensity = 200 μmol m-2 s-1; CO2 aeration = 2.0%; CO2 flow rate = 0.05 vvm).