水苏糖

水苏糖英語:)是一种四糖,结构式为:果糖葡萄糖半乳糖—半乳糖,分子式为:C24H42O21。该糖属于功能性低聚糖,不被人体消化酶完全水解,热量为1.5-2.4 kcal/g。因而可进入结肠,并被肠道细菌酵解利用。

水苏糖
IUPAC名
(2R,3R,4S,5R,6R)-2-[(2S,3S,4S,5R)- 3,4-Dihydroxy-2,5-bis(hydroxymethyl) oxolan-2-yl]oxy-6-[ [(2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-[ [(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6- (hydroxymethyl)oxan-2-yl]oxymethyl] oxan-2-yl]oxymethyl]oxane-3,4,5-triol
别名 β-D-Fructofuranosyl-O-α-D
-galactopyranosyl-(1→6)-O-α-D
-galactopyranosyl-(1→6)-α- D-glucopyranoside
识别
CAS号 470-55-3  
PubChem 91455
439531
ChemSpider 388624
SMILES
InChI
InChIKey UQZIYBXSHAGNOE-XNSRJBNMBB
EINECS 207-427-3
ChEBI 17164
性质
化学式 C24H42O21
摩尔质量 666.578 g·mol¹
精确质量 666.221858
若非注明,所有数据均出自一般条件(25 ℃,100 kPa)下。

甜度为蔗糖的28%。可从唇形科水苏属植物如地灵罗汉菜中提取。

参考来源

  • Nakakuki, T. Present status and future of functional oligosaccharide development in Japan. Pure and Applied Chemistry 2002, 74, 1245-1251. Article 页面存档备份,存于
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