This paper resumes some experimental results regarding the possibility of using carotenoids as biomarkers in the Botryococcus braunii green algae. High performance liquid chromatography was used as analytical technique, revealing twelve carotenoids as biomarkers: two carotenes (a - carotene, b - carotene) and ten xanthophylls (violaxanthin, 5,6-epoxy-lutein, anteraxanthin, lactucaxanthin, lutein, zeaxanthin, a-cryptoxanthin, b-cryptoxanthin, echinenone and 5,6-epoxy-b - carotene).

carotenoids; chromatography; HPLC; algae; biomarkers; Botryococcus braunii

Presentation: oral