Table 1 PHA content and composition produced by the Methylosinus-dominated culture
Odd-chain fatty acids | Methane availability | Code | PHA content (wt%) | 3HV fraction (mol%) | Total suspended solid (TSS) (g TSS L−1) | |
|---|---|---|---|---|---|---|
None | Yes | M1 | 8.6 | 0.0 | 0.42 ± 0.01 | |
No | M0 | 1.3 | 0.0 | 0.35 ± 0.01 | ||
Propionic acid | Yes | M1P | 3.5 | 22.6 | 0.37 ± 0.01 | |
No | M0P | 2.8 | 20.5 | 0.36 ± 0.00 | ||
Valeric acid | Yes | M1V | 14.1 | 65.0 | 0.47 ± 0.00 | |
No | M0V | 8.5 | 56.4 | 0.45 ± 0.01 | ||
Odd-chain fatty acids | Methane availability | Code | CH4 consumed (mmol CH4 g TSS−1 day−1) | CO2 produced (mmol CO2 g TSS−1 day−1) | C3 consumed (mmol C3 g TSS−1) | C5 consumed (mmol C5 g TSS−1) |
|---|---|---|---|---|---|---|
None | Yes | M1 | 7.1 ± 1.2 | 2.4 ± 0.3 | – | – |
No | M0 | – | N/A | – | – | |
Propionic acid | Yes | M1P | 5.2 ± 0.3 | 1.6 ± 0.3 | 2.1 | – |
No | M0P | – | N/A | 1.6 | – | |
Valeric acid | Yes | M1V | 4.3 ± 0.4 | 0.8 ± 0.2 | – | 2.2 |
No | M0V | – | N/A | – | 2.3 |