of β-carotene and lipid content in Dunaliella salina and Dunaliella bardawil. Total carotenoid
and chlorophyll content were determined at regular intervals by a UV–VIS
spectrophotometer. The β-carotene and lipid contents were analyzed using high-
performance liquid chromatography (HPLC) and gas chromatography coupled with mass
spectrometry (GC-MS). The HPLC results revealed a twofold increase of β-carotene in D …