p. 247 - 253 PROTEIN CONTENT AND AMINO ACID CONSTITUENTS IN 15 SPECIES OF MARINE UNICELLULAR ALGAE Iulia Voinescu Romanian Marine Research Institute Constanta Abstract Fifteen species of marine unicellular algae have been analysed in order to determine their protein content and amino acid constituents. All the algae were grown in laboratory cultures in similar physical and chemical conditions and were analysed during their exponential phase of growth.