Objective Polysaccharide fractions F1, F2 and F3 were prepared from Porphyra haitanensis by hot-water extraction and DEAE-cellulose chromatography.

• 目的:坛紫菜多糖分级组分F1、F2和F3是从坛紫菜中通过热水提取及DEAE-纤维素层析得到的3个多糖组分。