title: [Extraction and analysis of gracilaria gigas Harvey polysaccharides].
abstract: Gracilaria Gigas Harvey Polysaccharides (GHPS) were extracted with hot water and sedimentated with ethanol. The amount of polysaccharides was determined by phenol-H2SO4 method. The mineral elements and molecular configuration were analysed by inductively coupled plasma (ICP) and infrared absorption spectrum (IR). The rate of distillation was 14.98%, the amount of polysaccharides was 78.2%, and GHPS contained manifold mineral elements (Ca, Fe, Mg and S). The IR spectra manifested that the extraction was a compound of polysaccharides, i.e. acidic polysaccharides.
authors.affiliation: Analysis Center of Guangdong Medical College, Zhanjiang 524023, China.
authors.forename: Qing-yong
authors.initials: QY
authors.lastname: Meng
authors.forename: Ya-fei
authors.initials: YF
authors.lastname: Wang
authors.forename: Xin-ming
authors.initials: XM
authors.lastname: Jie
authors.forename: Guang-zhi
authors.initials: GZ
authors.lastname: Dongye
authors.forename: Li-jian
authors.initials: LJ
authors.lastname: Zhang
mesh_terms: D000431:Ethanol / Q000737:chemistry; D044724:Gracilaria / Q000737:chemistry*; D019800:Phenol / Q000737:chemistry; D011134:Polysaccharides / Q000737:chemistry*; D012043:Regression, Psychology; D013054:Spectrophotometry, Atomic; D013055:Spectrophotometry, Infrared
chemical_list: D011134:Polysaccharides; D019800:Phenol; D000431:Ethanol