TABLE 3.
Biomass and PHB accumulation in 48-h bioreactor cultures of strains K24Kvc and K24KP in MYA-Glya
| Strain | CDW (g/liter) | PHBb (g/liter) | Residual CDWc (g/liter) | % PHBd (wt/wt) | Residual glycerole (g/liter) | PHB productivity (g PHB liter−1 h−1) | YPHB/Sf | μ max (h−1) |
|---|---|---|---|---|---|---|---|---|
| K24Kvc | 8.0 ± 1.2 | 3.1 ± 0.1 | 5.0 ± 0.9 | 38.2 ± 1.2 | 2.2 | 0.1 | 0.1 | 0.6 ± 0.1 |
| K24KP | 15.3 ± 1.3 | 7.9 ± 0.5 | 7.3 ± 1.1 | 51.9 ± 3.3 | 0.5 | 0.2 | 0.3 | 0.6 ± 0.1 |
a
Means from triplicate determinations of a representative experiment are shown.
b
PHB was determined by gas chromatography.
c
Residual CDW was calculated by subtracting the weight of PHB.
d
The amount of PHB is given as an average weight percentage of the CDW.
e
Residual glycerol was enzymatically determined at the end of the fermentation.
f
PHB yield was calculated on the basis of glycerol consumption.