EFFECT OF CaCl2 CONCENTRATION ON THE PHYSICOCHEMICAL AND STRUCTURAL CHARACTERISTICS OF CRUDE FUCOIDAN OF Sargassum sp. - Amalia, Ulfah; Darmawan, Widan Adi; Susanti, Siti; Wijayanti, Ima (Indonesian Fisheries Processing Journal / Jurnal Pengolahan Hasil Perikanan Indonesia, 2026)