等级
analytical standard
for GPC
质量水平
分子量
Mn ~20,000
Mp ~20,000
Mw ~25,000
分析物化学类别
oligosaccharides
技术
gel permeation chromatography (GPC): suitable
Mw/Mn
~1.25
应用
food and beverages
格式
neat
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
右旋糖酐是一种D-葡糖基均一多糖，通过α-1,2、α-1,3和α-1,4连接（相应地分为A、B和C组）与不同分支有a-1,6糖苷键连接。可由蔗糖经无细胞滤液合成。
葡聚糖是分子量≥1,000道尔顿的多糖，有一条α-D-吡喃葡萄糖基重复单元连接的线型主链。葡聚糖是细菌胞外多糖。它们是由肠膜明串珠菌和短乳杆菌通过蔗糖合成。细菌合成右旋糖酐用于生物被膜形成，致病菌则将其作为保护性包被以便入侵宿主的吞噬细胞。肠膜明串珠菌
右旋糖酐（Mw：25,000）可作为分析标准品，用于校准凝胶渗透色谱 (GPC) 的色谱柱。
右旋糖酐（Mw：25,000）可作为分析标准品，用于校准凝胶渗透色谱 (GPC) 的色谱柱。
应用
用25000 Da的葡聚糖作为凝胶色谱分析标准品，用于测定基础酒中蛋白、碳水化合物、酚类表面活性物质的部分组成。
将右旋糖酐用作长的亲水性间隔臂提高了作用于大分子的固定化蛋白质的性能。
WGK
WGK 2
闪点(°F)
Not applicable
闪点(°C)
Not applicable
个人防护装备
Eyeshields, Gloves, type N95 (US)
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相关内容
Dextrans are polysaccharides with molecular weights ≥1,000 Dalton, featuring a linear backbone of α-linked d-glucopyranosyl repeating units.
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