Table 3 Effects of different culture factors on the accumulation of PBPs in microalgae

Light intensity

Nostoc sphaeroides Kützing

PC

25 °C;

PC contents were the highest under white light at 90 μmol m^­−2 s^­−1 or blue light at 90 μmol m^­−2 s^­−1

[42]

Different ratios of nitrogen to phosphorus

Microcystis aeruginosa (FACHB-905)

PC

25 °C; 12:12 h light:dark cycle; 40 μmol photons m^­−2 s^­−1

PC contents were the highest (8.3 mg·L⁻¹) under NO₃/P of 30 ~ 50

[43]

Different nitrogen sources

Phormidium sp. EGEMACC72

PC

22 °C: 80 μmol photons m^­−2 s^­−1

PC contents were the highest (19.38 ± 0.09 mg·L^­-1) when ammonium chloride was used

[44]

Nitrogen concentration

Spirulina (Arthrospira) platensis

C-PC

28 °C: 100 μmol photons m^­−2 s^­−1

C-PC increased with nitrogen (0.03–0.045 M)

[45]

Temperature

Arthronema africanum

C-PC

150 μmol photons m^­−2 s^­−1

C-PC amounting to 23% of the dry algal biomass at 36 °C

[46]

Metal ions

Arthrospira platensis

PC APC

32 °C; 12:12 h light:dark cycle; white fluorescent tubes (35 μEm­^−­2 s⁻¹)

The highest PBPs productivity under ferrous sulfate at a concentration of 0.1 g·L⁻¹

[47]

Temperature

Biflagellate microalga

PE

White light; 12:12 h light:dark cycle; 15 μmol photons·m^­−2 s^­−1

The highest PE productivity (1.594 μg·mL^­−1·d^­−1) at 26 °C

[48]

Different carbon supply

Porphyridium purpureum

B-PE

26 °C; 10, 000 lx

The maximum B-PE content was 12.17% when 2 g·L^­−1 NaHCO₃ was added

[49]