推荐产品
等级
analytical standard
for GPC
质量水平
分子量
Mp 1,000-400,000
分析物化学类别
oligosaccharides
技术
gel permeation chromatography (GPC): suitable
应用
food and beverages
包装形式
neat
SMILES字符串
O1C(C(C(C(C1CO)O)O)O)OCC2OC(C(C(C2O)O)O)OCC(O)C(O)C(O)C(O)C=O
InChI
1S/C18H32O16/c19-1-5(21)9(23)10(24)6(22)3-31-17-16(30)14(28)12(26)8(34-17)4-32-18-15(29)13(27)11(25)7(2-20)33-18/h1,5-18,20-30H,2-4H2
InChI key
FZWBNHMXJMCXLU-UHFFFAOYSA-N
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一般描述
葡聚糖是乳酸菌利用蔗糖合成的胞外多糖。它由重复的 D-葡萄糖单元构成，单体间通过 α-1,6糖苷键连接。此外，线性 D-葡萄糖链常间断出现分支结构，这些分支由 α-1,4， α-1,3，或 α-1,2糖苷键连接。
应用
本分析标准品也可适用于以下情况：
- 基于高效体积排除色谱（HPSEC）测定从菠萝发酵物中提取的 柠檬明串珠菌 B-2合成的葡聚糖分子量
- 用搭配水溶性凝胶柱的高效液相色谱测定从四种 木耳 中提取的多糖的分子量
- 用凝胶渗透色谱（GPC）鉴定从 青钱柳 干叶经阴离子交换色谱分离的水溶性多糖的分子量
- 基于凝胶渗透色谱（GPC）测定两种 肠膜明串珠菌产生的葡聚糖的分子量
- 用高效体积排除色谱(HPSEC)评估果树修剪期修剪掉的小苹果中的水溶性多糖的分子量。
组分
该组包含 10 种不同的右旋糖酐标准品，500 mg M p ~1,100（货号 31416 ），~4,400（货号 31417），~10,000（货号 31418），约 20,000（货号 31419 ），~45 000（货号 31420 号），~65,000（货号 31421 ），~ 125,000（货号 31422），~ 195,000（货号 31423），~275,000（货号 31424），~ 40 万（货号 31425)；这些组分也可以按照指定的产品编号单独订购。
储存分类代码
11 - Combustible Solids
WGK
WGK 2
个人防护装备
Eyeshields, Gloves, type N95 (US)
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Dextrans are polysaccharides with molecular weights ≥1,000 Dalton, featuring a linear backbone of α-linked d-glucopyranosyl repeating units.
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