shows that
Phaeodactylum
and
Isochrysis
mainly contained fucoxanthin and, to a lesser extent, beta-carotene (135lg and107lg/g DM, respectively). However, the fucoxanthin content in
Isochrysis
(1464
l
g/g DM) was three times lower than that mea-
sured in
Phaeodactylum
(4382
l
g/g DM).
Nannochloropsis
mainly
contained violaxanthin (2287
l
g/g DM), and a four to five times
higher amount of beta-carotene (581
l
g/g DM) in comparison with
Phaeodactylum
and
Isochrysis
. In the microalga
Chlorella
, only a low
level of carotenoids was measured. This contained no beta-caro-
tene or fucoxanthin, only lutein (97.7
l
g/g DM), neoxanthin
(39.4
l
g/g DM) and violaxanthin (21.6
l
g/g DM).