PHÂN TÍCH THÀNH PHẦN HÓA HỌC VÀ HOẠT TÍNH CHỐNG OXY HÓA CỦA SULFATE POLYSACCHARIDE CHIẾT XUẤT TỪ RONG NÂU VIỆT NAM BẰNG PHƯƠNG PHÁP HÓA HỌC VÀ HỖ TRỢ ENZYME

Tóm tắt

Sulfate polysaccharides from four Vietnamese brown algae Sargassum oligocystum, S. polycystum, S.
seratum and Turbinaria ornata were extracted by both chemical and enzyme –assisted methods. The
monosaccharide composition, sulfate content and molecular weight of all chemical and enzymatic extracts
were analyzed. The effect of extraction method on chemical features of sulfated polysaccharides was
investigated. The enzymatic extract showed higher antioxidant activity compared to chemical extract.