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海蜇头糖蛋白的分离纯化及组成分析

Separation,purification and composition analysis of glycoprotein from jellyfish oral-arms

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【作者】 任国艳侯玉泽乌仁套迪赵胜娟梁华李八方

【Author】 REN Guo-yan1, HOU Yu-ze1, WUREN Tao-di2, ZHAO Sheng-juan1, LIANG Hua1, LI Ba-fang3(1.School of Food & Bioengineering, Henan University of Science and Technology, Luoyang 471003;2.School of Livestock Science & Technology, Henan University of Science and Technology, Luoyang 471003;3.School of Food Science & Engineer, Ocean University of China, Qingdao 266003)

【机构】 河南科技大学食品科学与生物工程学院河南科技大学动物科学学院中国海洋大学食品科学与工程学院

【摘要】 以新鲜海蜇为实验材料,研究海蜇头糖蛋白的分离纯化及基本组成。结果表明:海蜇头提取液经乙醇分级沉淀,Sp SephadexC-25阳离子交换柱层析初步分离,Sephacryl S300HR柱层析,Sepharose CL-6B柱层析和HPLC纯化后,通过SDS-PAGE电泳鉴定得到分子量为109.7ku,组成均一的糖蛋白JGP-Ⅲ。JGP-Ⅲ含有12.61%总糖、74.34%总蛋白;单糖以氨基糖为主,其次是葡萄糖和甘露糖;含有16种氨基酸。

【Abstract】 Glycoproteins were isolated through ethanol fractionated precipitation, Sp Sephadex C-25 column and purified by means of Sephacryl S300HR, Sepharose CL-6B and HPLC from jellyfish oral-arms.Results stated a homogeneous glycoprotein(JGP-Ⅲ) was obtained.The molecular weight of JGP-Ⅲ was estimated to be 109.7 ku by SDS-PAGE.JGP-Ⅲ contained 12.61% total suger, 74.34% protein.Monosaccharides composition of JGP-Ⅲwas Rha, Fuc, Ara, Man, Glc, GalNAc and GlcNAc determined by GC.Amino acid composition of JGP-Ⅲ was rich in glycine and lack in histidine.

【关键词】 海蜇头糖蛋白分离纯化
【Key words】 jellyfish oral-armsglycoproteinseparationpurification
  • 【文献出处】 食品科技 ,Food Science and Technology , 编辑部邮箱 ,2009年07期
  • 【分类号】S917.4
  • 【被引频次】11
  • 【下载频次】418
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