2021. Agar Extraction, Physical Properties, FTIR Analysis and Biochemical Composition of Three Edible Species of Red Seaweeds Gracilaria corticata (J. Agardh), Gracilaria dentata (J. Agardh) and Gracilariopsis longissima (S. G. Gmelin). : Biochemical Composition of Three Edible Species. Biological Sciences - PJSIR. 64, 3 (Oct. 2021), 263–273. DOI:https://doi.org/10.52763/PJSIR.BIOL.SCI.64.3.2021.263.273.