Table 1.
Effect of the initial phosphate concentration in T. thermophilus growth, rhamnolipids production and PHAs production and compositiona
| Phosphate concentration (mM) | Biomass (CDWb) (mg/L) | Rhamnolipids (mg/L) | Yield of Rhamnolipids (% DCW) | PHA (mg/L) | PHA content (% DCW) | monomer composition (%mole) | |||
|---|---|---|---|---|---|---|---|---|---|
| HB (C4) | HV (C5) | HO (C8) | HD (C10) | ||||||
| 0.5 | 667 | 230 | 34.48 | 164 | 24.28 | 4.4 | 8.5 | 26.7 | 60.4 |
| 5 | 840 | 204 | 24.29 | 258 | 30.73 | 4.6 | 7.9 | 26.2 | 61.3 |
| 10 | 911 | 202 | 22.17 | 298 | 32.70 | 4.2 | 8.8 | 25.9 | 61.1 |
| 25 | 1040 | 161 | 15.48 | 362 | 34.81 | 5.3 | 8.1 | 26.8 | 59.8 |
| 50 | 1120 | 118 | 10.54 | 228 | 20.36 | 4.9 | 8.3 | 25.4 | 61.1 |
a Measures were obtained after 72 h of cultivation.
b CDW: Cell Dry Weight
Note: all experiments were performed twice while all data are means of triplicates determinations.