A new analytical method was developed for the...

A new analytical method was developed for the determination of free sterols in the extracts of the red alga Asparagopsis armata and the brown one Cystoseira sedoides by using FTIR spectrometry. Sterols samples were globally refered to cholesterol content because it is the major sterol contained in red algae [1] and to fucosterol because it is the principal one contained in brown ones [2]. The method involves the use of cholesterol as reference standard in the case of red alga and a (...)