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Table 2 Studies on the effect of CO2 levels on the accumulation of lipids in different species of microalgae

From: Biomass and lipid induction strategies in microalgae for biofuel production and other applications

Microalgae strain Used CO2 concentration Change of lipid amount Refs.
Chlorella sp. BTA 9031 3% (v/v) Accumulated 25% of lipid as a percentage of dry cell weight [98]
Chlamydomonas sp. JSC4 4% (v/v) Generated maximum lipid content (65.3%) and productivity (169.1 mg/L/day) [99]
Chlorococcum littorale 5% (v/v) Lipid content increased up to 34% wt [100]
Scenedesmus obliquus CNW-N The optimal CO2 consumption rate was 1420.6 mg/L/day The highest productivity of lipid (140.35 mg/L/day) is achieved [101]
Synechocystis sp. PCC6803 3% (v/v) The total lipid content increased up to 14% of dry weight [102]
Porosira glacialis 20–25% levels of CO2 The total lipid content increased from 8.91 to 10.57% in cell dry mass
Docosahexaenoic acid content increased from 3.90 to 5.75%
EPA decreased from 26.59 to 23.66%
[103]
Attheya longicornis 20–25% levels of CO2 Did not show any significant increase in total lipid content [103]
Nannochloropsis oculata 3% (v/v) Demonstrated high lipid content (53.2 wt%) [104]
Scenedesmus sp. 10% CO2 Lipid productivity reached up to 20.65 mg/L/day [105]
Chlorella vulgaris 30% CO2 The highest lipid content (45.68%) and lipid productivity (86.03 mg/L/day) is obtained [106]