College of Food Science and Engineering, Shandong Agricultural University, Tai'an 271018, PR China.
University of Illinois at Urbana-Champaign, IL6801, USA.
Int J Biol Macromol. 2018 May;111:862-869. doi: 10.1016/j.ijbiomac.2018.01.087. Epub 2018 Feb 19.
Two components ginger polysaccharide 1 (GP1) and ginger polysaccharide 2 (GP2) were extracted. The results showed that the molecular weights of GP1 and GP2 were 6128 Da and 12,619 Da, respectively. The composition and proportion of GP1 and GP2 were mannose, glucose and galactose in a molar ratio of 4.96: 92.24: 2.80 and arabinose, mannose, glucose and galactose in a molar ratio of 4.78: 16.70: 61.77: 16.75, respectively, illustrating that GP1 and GP2 were not a kind of homopolysaccharide. GP1 has a three-helix structure, and the structure is closely linked. GP2 contains sulfuric acid groups, and has a high oxidation resistance, its structure is more evacuated and messy.
两种成分生姜多糖 1（GP1）和生姜多糖 2（GP2）被提取出来。结果表明，GP1 和 GP2 的分子量分别为 6128Da 和 12619Da。GP1 和 GP2 的组成和比例分别为甘露糖、葡萄糖和半乳糖的摩尔比为 4.96:92.24:2.80 和阿拉伯糖、甘露糖、葡萄糖和半乳糖的摩尔比为 4.78:16.70:61.77:16.75，说明 GP1 和 GP2 不是同一种均多糖。GP1 具有三螺旋结构，结构紧密相连。GP2 含有硫酸基团，具有较高的抗氧化性，其结构更加疏散和杂乱。
