Table 5.

Percentages of sulphate, protein, and uronic acids in polysaccharides from different marine microalgae.

Microalgae/Cyanobacteria	Sulphate (%)	Protein (%)	Uronic acids (%)	References
Porphyridium sp.	7.6–14.6	1–2	7.8–10	[31,55,80]
Rhodella sp.	8	6	5–7.8	[31,81]
A. platensis	5–20	6	7	[82]
C. stigmatophora	7.8–9.4		3.7–9.0	[28]
P. tricornutum	7.5–13.3		1.4–6.3	[28]
C. closterium	0–10.9	7.7–9.2	4.8–21.0	[22]
N. salinarum	6.3–11.5	0.5–4.9	7.7–8.0	[22]
C. polykrikoides	7–8		presence, without %	[37]
G. impudicum	10.3		2.9	[38]