Table 3.

Strategies for enhanced lipid productivity in microalgal biorefinery

Strategy	Microalgae used	Lipid productivity (g L−1 day−1)	References
Salinity stress	Scenedesmus sp.	0.607	Xia et al. (2013)
	Nannochloropsis oculata	0.324	Shokravi et al. (2020)
	Dunaliella salina	0.565	Abomohra et al. (2020)
Salinity stress + nitrogen starvation	Tetraselmis sp.	0.285	Park et al. (2018)
	Chlorella vulgaris	0.8	Mirizadeh et al. (2020)
Phytohormones	Chlorella sorokiniana	0.502	Guldhe et al. (2019)
Phytohormones + nitrogen starvation	Chlorella sorokiniana	0.69	Babu et al. (2017)
Combination of NaCl/CaCl2	Chamydomonas reinhardtii	0.109	Hang et al. (2020)
Salinity + nitrogenstarvation + wastewater	Chlorella vulgaris	0.080	Mirizadeh et al. (2020)
Muncipalwastewater + seawater	Phaeodactylum tricornutum	0.054	Wang et al. (2019)
Two stage photoautotrophic and mixotrophic cultivation	Chlorella vulgaris	0.108	Shokravi et al. (2020)
Farm wastewater	Chlorella sorokiniana	0.083	Shokravi et al. (2020)
Wastewater + glycerol	Chlorella vulgaris	0.163	Ma et al. (2016)
Wastewater	Chlorella vulgaris	0.02	Ge et al. (2018)