Table 1 PHA production using various fatty acid co-substrates by M. parvus OBBP
Co-substrates | wt% PHA polymer | PHA monomer ratio (mol%) | TSS (mg/L) | ||||
|---|---|---|---|---|---|---|---|
3HB | 3HV | 4HB | 5HV | 6HHx | |||
None | 42 ± 3 | 100 | 0 | 0 | 0 | 0 | 1600 ± 180 |
Butyrate (1.2 mM) | 55 ± 3 | 100 | 0 | 0 | 0 | 0 | 1660 ± 200 |
3-Hydroxybutyrate (1.2 mM) | 59 ± 5 | 100 | 0 | 0 | 0 | 0 | 1820 ± 220 |
4-Hydroxybutyrate (1.2 mM) | 50 ± 4 | 91.5 | 0 | 9.5 | 0 | 0 | 1720 ± 240 |
Valerate (1.2 mM) | 54 ± 4 | 75.0 | 25.0 | 0 | 0 | 0 | 1760 ± 160 |
5-Hydroxyvalerate (1.2 mM) | 48 ± 4 | 95.0 | 1.4 | 0 | 3.6 | 0 | 1640 ± 180 |
Hexanoate (1.2 mM) | 56 ± 4 | 100 | 0 | 0 | 0 | 0 | 1740 ± 200 |
6-Hydroxyhexanoate (1.2 mM) | 48 ± 3 | 97.6 | 0 | 1.0 | 0 | 1.4 | 1680 ± 220 |
Octanoate (1.2 mM) | 54 ± 3 | 100 | 0 | 0 | 0 | 0 | 1720 ± 180 |