Table 2.

PHB content and productivity of cyanobacteria under mixotrophic conditions.

Algal Species	Culture Medium	Culture Mode	Phycocyanin (% w/w)	Max PHB (% w/w)	PHB Productivity (mg/L/d)	Ref.
Arthrospira platensis	Zarrouk	Batch, photoheterotrophic, 0.5% w/v acetate, nitrogen deprivation	n.r	19.2 ± 0.5	14.5 ± 0.7	[53]
	Zarrouk	Batch, mixotrophic, 0.1% w/v butyrate, nitrogen deprivation	n.r	17.8 ± 0.7	12.5 ± 0.6	[53]
	Zarrouk	Batch, photoheterotrophic, 0.75% w/v glucose, nitrogen deprivation	n.r	15.4 ± 0.7	10.8 ± 0.8	[53]
	Zarrouk	Batch, photoheterotrophic, 0.1% w/v propionate, nitrogen deprivation	n.r	12.6 ± 0.5	8.9 ± 0.6	[53]
	Zarrouk	Batch, mixotrophic, 3.0–6.14 g/L pure glycerol	7.8 ± 3.3 to 4.2 ± 3.1	1.3 ± 0.6 to 1.1 ± 1.5	2.4–2.6	[54]
	Zarrouk	Batch, mixotrophic, 3.0–6.14 g/L crude glycerol	10.8 ± 4.3 to 2.7 ± 2.6	0.06 ± 0.001 to 0.5 ± 0.11	0.09–1.0	[54]
	Zarrouk	Batch, mixotrophic, acetate, formate, glycerol, oxalate, air ± CO2	11.0–14.5	0.1–3.0	0.2–7.8	[35]
	Zarrouk	Fed batch, mixotrophic, acetate	8.4 ± 0.1	1.5 ± 0.5	3.6 ± 1.1	This study
	Zarrouk	Fed batch, mixotrophic, oxalate	9.8 ± 0.1	0	0	This study
	Zarrouk	Fed batch, mixotrophic, glycerol	4.3 ± 0.2	7.8 ± 1.5	11.1 ± 1.7	This study
	Zarrouk	Fed batch, mixotrophic, glycerol + oxalate	6.3 + 0.3	1.5 ± 0.2	3.6 ± 0.7	This study
	Zarrouk	Fed batch, mixotrophic, glycerol + oxalate + acetate	6.9 + 0.2	1.9 ± 0.1	3.9 ± 0.7	This study
Spirulina sp. LEB18	Biopolymer extraction waste	Batch, mixotrophic, 25% v/v waste	n.r	10.6	4.7	[59]
Nostoc muscorum	ES	Batch, mixotrophic, 1% w/v glucose + 1% w/v acetate, phosphate deprivation	n.r	16.4 + 2.7	6.5	[60]
Scytonema geitleri	Chu 10	Batch, mixotrophic, 30 mM acetate		7.1	n.r	[61]
Synechocystis sp. PCC6803-OEphaAB	BG 11 + 30 g/L chloramphenicol	Batch, mixotrophic, 4 mM acetate, nitrogen deprivation	n.r	35	n.r	[62]
Synechocystis sp. PCC6803-ΔSphU	shrimp wastewater	Batch, mixotrophic	n.r	32.5 + 1.7	12.7	[63]