水苏糖
来自维基百科,自由的百科全书
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来自维基百科,自由的百科全书
水苏糖(英語:Stachyose)是一种四糖,结构式为:半乳糖—半乳糖—葡萄糖—果糖[1],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 | |
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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 | |
识别 | |
CAS号 | 470-55-3 |
PubChem | 91455 439531 |
ChemSpider | 388624 |
SMILES |
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InChI |
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InChIKey | UQZIYBXSHAGNOE-XNSRJBNMBB |
EINECS | 207-427-3 |
ChEBI | 17164 |
性质 | |
化学式 | C24H42O21 |
摩尔质量 | 666.578 g·mol⁻¹ |
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。 |
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