Polysaccharides from Enteromorpha linza: Purification and moisture-preserving activity
浒苔多糖的分级纯化及保湿活性研究

To study the properties of moisture absorption and retention by polysaccharides from Enteromorpha linza. The polysaccharides were purified by anion-exchange chromatography (a DEAE-Sepharose FF column). The monosaccharide residues were analyzed by HPLC (SHIMADZU-20A). The properties of moisture absorption and retention of polysaccharides from Enteromorpha linza were investigated by controlling the relative humidity, and compared with glycerol and hyaluronic acid. The main composition of the polysaccharides was glucurono-xylomannorhamnan. The polysaccharides had two sub-fractions; the ratio of xylose/rhamnose for one fraction was 1.1:11, and 1:3.28. for the other. The polysaccharides and hyaluronic acid had similar properties of moisture absorption and retention. The Polysaccharides from Enteromorpha linza had distinct moisture-preserving activity, and can be further studied as a type of natural moisturizer.