Table 5.
Quantitative comparison of cultivation parameters and PHB yield among microalgal strains
| Microalgae species | Light intensity (µmol·m⁻2·s⁻1) | C/N ratio | Stress condition | Temperature | Light:Dark | pH | Polymer type | PHB yield (% DCW) | References |
|---|---|---|---|---|---|---|---|---|---|
| Chlorella vulgaris | 500 | 20:1 | Nitrogen starvation | 28 | 16:8 | 7–8 | PHB | 35 | Selvaraj et al. (2021) |
| Synechocystis sp. PCC 6803 | 100 | 10:1 | Phosphorous limitation | 25–30 | 12:12 | 7 | PHB | 10.6 | Koksharova and Wolk (2002); Wilde and Dienst (2011) |
| Phaeodactylum tricornutum | 200 | 30:1 | Sulphur deprivation | 22 | 14:10 | 8 | PHB | 10.2 | Hempel et al. (2011) |
| Spirulina platensis | 300 | 15:1 | Salinity stress | 25–30 | 12:12 | 9 | PHB | 22 | Albertos et al. (2019); Martínez-Sanz et al. (2020) |
| Scenedesmus obliquus | 450 | 25:1 | Nitrogen limitation | 26 | 16:8 | 7.2 | PHB | 28 | Kartik et al. (2021) |
| Nannochloropsis gaditana | 250 | 18:1 | High light exposure | 24 | 18:6 | 7.8 | PHB | 16 | Martínez-Sanz et al. (2020) |