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单词 d-fructose
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d-fructose
A white crystalline sugar which occurs widely in fruit juices, syrups, and honey; spec. one of two enantiomers of this, the laevorotatory (−) form with the d configuration (also d-fructose). Also called fruit sugar, laevulose.A monosaccharide, fructose often occurs combined with glucose to form sucrose. Formula: C6H12O6.
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fructose1857
1857 W. A. Miller Elements Chem. III. ii. 57 Fruit Sugar or Fructose, (C12H12O12), exists ready formed in most ripe acidulous fruits, which owe their sweetness to this substance.
1860 Chem. News 7 July 40/1 There are many varieties of sugar, of which the three most important kinds are cane sugar or sucrose.., fruit sugar or fructose.., and grape sugar or glucose.
1893 P. F. Frankland Secr. Friends & Foes 104 One of the principal artificial sugars prepared by Fischer is called fructose.
1903 A. J. Walker & O. E. Mott tr. A. F. Holleman Text-bk. Org. Chem. i. 274 On hydrolysis sucrose yields d-glucose and d-fructose in equal proportions.
1983 T. H. Grenby in T. H. Grenby et al. Devel. Sweeteners—2 iii. 54 Certain bacteria can use sucrose as a substrate for this process without first hydrolysing it to glucose and fructose.
2000 J. C. McAuliffe & O. Hindsgaul in M. Fukuda & O. Hindsgaul Molecular & Cellular Glycobiol. viii. 269 A derivative of d-fructose, Topiramate, has recently been approved by the FDA..for the treatment of certain types of epilepsy.
2007 Vanity Fair June 173/3 During this reduction caramelizing causes the browning sugar to grow in mass through the formation of fructose and glucose.
extracted from fructosen.
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