title: Chemical composition and moisture-absorption/retention ability of polysaccharides extracted from five algae.
abstract: In this study, we prepared seven polysaccharides extracted from five algae including one brown alga Saccharina japonica, one red alga Porphyra haitanensis and three green algae Codium fragile, Enteromorpha linza and Bryopsis plumose. The chemical composition and capability of moisture-absorption and moisture-retention were investigated in comparison with those of hyaluronic acid (HA). The low molecular weight polysaccharides extracted from brown seaweed exhibited the highest moisture-absorption and moisture-retention abilities of all of the polysaccharides studied and performed better than HA. The relationships between chemical composition (including sulfated groups, monosaccharide, and molecular weight) and the functions of polysaccharides were also studied. We found the sulfated group was a main active site for moisture-absorption and moisture-retention abilities. These abilities were also related to molecular weight; with the exception of the low molecular weight polysaccharide extracted from red seaweed, lower molecular weight improved moisture-absorption and moisture-retention abilities.
authors.affiliation: Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, PR China.
authors.forename: Jing
authors.initials: J
authors.lastname: Wang
authors.forename: Weihua
authors.initials: W
authors.lastname: Jin
authors.forename: Yun
authors.initials: Y
authors.lastname: Hou
authors.forename: Xizhen
authors.initials: X
authors.lastname: Niu
authors.forename: Hong
authors.initials: H
authors.lastname: Zhang
authors.forename: Quanbin
authors.initials: Q
authors.lastname: Zhang
mesh_terms: D000042:Absorption; D000460:Chlorophyta / Q000737:chemistry*; D011134:Polysaccharides / Q000737:chemistry*; D044664:Porphyra / Q000737:chemistry*; D012624:Seaweed / Q000737:chemistry*; D014867:Water / Q000737:chemistry*
chemical_list: D011134:Polysaccharides; D014867:Water