Table 2.

Pigment content of Chlorella sp. and Spirulina (Arthrospira) sp. (mg g⁻¹ dw) [25,30,38,39,40,41,42,43,44].

Pigment	Chlorella sp.	Spirulina sp.
Chlorophylls	1.16–24.0	3.01–17.0
Chlorophyll-a	0.25–18.3	2.7–10.8
Chlorophyll-b	0.07–6.81	0.21–0.42
Pheophytins	9.73–26.93	8.24–13.49
Pheophytin-a	2.31–5.64	nr
Carotenoids	0.24–8.21	0.23–6.5
Carotenes	nr	nr
β-carotene	0.007–7.18	0.02–2.5
Xanthophylls	nr	2.5–4.7
Astaxanthin	0.25–6.8	0.095–0.72
Canthaxanthin	0.67–1.17	0.44–0.65
Lutein	0.052–13.8	0.12–1.03
Violaxanthin	0.010–0.037	nr
Zeaxanthin	0.074–7.00	0.028–2.0
Phycobiliproteins
Phycocyanin	Absent	95–251

nr—not referenced.