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Variations of carotenoids (mg g−1 DW) in Nephroselmis sp. at different times of the culture: (a) β-carotene; (b) lutein; (c) lycopene; (d) siphonaxanthin; (e) neoxanthin (trans and cis); (f) xanthophyll cycle pigments (XCP; violaxanthin + antheraxanthin + zeaxanthin). Data are expressed as mean ± standard error (SE, n = 2). Different letters indicate statistically significant differences (p < 0.05).
