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Table 1 Effect of the initial phosphate concentration in T. thermophilus growth, rhamnolipids production and PHAs production and compositiona

From: Simultaneous polyhydroxyalkanoates and rhamnolipids production by Thermus thermophilus HB8

Phosphate concentration (mM) Biomass (CDWb) (mg/L) Rhamnolipids (mg/L) Yield of Rhamnolipids (% DCW) PHA (mg/L) PHA content (% DCW) monomer composition (%mole)
       HB (C 4 ) HV (C 5 ) HO (C 8 ) HD (C 10 )
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
  1. a Measures were obtained after 72 h of cultivation.
  2. b CDW: Cell Dry Weight
  3. Note: all experiments were performed twice while all data are means of triplicates determinations.