Table 4.
Comparison between studies related to PHA production using fermented OFMSW as substrate and this study
| Culture | Substrate | Organic acids compositiona (%, weight basis, acetate/n-butyrate/propionate/valerate/isobutyrate/lactate) | PHA contentb (g kg−1 VSS) | Polymer composition PHB/PHA (w/w) | PHA yieldc (mg mg−1 CODcons.) | PHA yieldd (mg mg−1 CODOA-cons.) | PHA yielde (g kg−1 OFMSWTS) | References |
|---|---|---|---|---|---|---|---|---|
| MMC | Fermented OFMSW | 30/0/70/0/0/0 | 600 | 0.77 | – | – | 25 | [15] |
| MMC | Fermented food waste and sewage sludge | – | 477 | 0.38 | – | 0.54 | – | [16] |
| MMC | Fermented OFMSW | 51.6/22.8/21.1/1.8/2.8/0 | 237 ± 1 | 0.61 | 0.17 | – | – | [17] |
| MMC | Leachate | – | 784 | – | – | – | – | [18]f |
| MMC | Leachate | – | 778 | – | – | – | – | [18]g |
| MMC | Percolate 1 | 39.8/15.3/40.3/0/0/4.6 | 476 ± 41 | 0.57 ± 0.04 | 0.44 ± 0.17 | 1.13 ± 0.18 | 62.9 ± 10.5 | This study |
| MMC | Percolate 2 | 37.1/10.2/46.1/2.7/2.2/1.7 | 465 ± 21 | 0.54 ± 0.02 | 0.52 ± 0.10 | 0.75 ± 0.16 | 114 ± 14 | This study |
| MMC | Percolate 3 | 45/20/29.4/2.8/1.1/1.7 | 405 ± 28 | 0.57 ± 0.01 | 0.50 ± 0.10 | 0.65 ± 0.06 | 100 ± 6 | This study |
| Cupriavidus necator CCGUG 52238 | Fermented food waste | 6/0/0/0/0/94 | 860 | 1 | – | – | – | [34] |
| Cupriavidus necator H16 | Fermented food waste | – | 870 | 1 | – | – | – | [35] |
aSee Additional file 1
bPHA accumulated at the end of the accumulation test referred to VSS
cPHA storage yield expressed as COD (CODPHA) referred to CODcons.
dPHA storage yield expressed as COD (CODPHA) referred to CODOA-cons.
ePHA produced referred to OFMSWTS
fAccumulation test with a biomass selected with a substrate made of 90% synthetic VFAs and 10% pre-treated leachate
gAccumulation test with a biomass selected with a substrate made of 75% synthetic VFAs and 25% pre-treated leachate