单词 | pyranose |
释义 | pyranosen. Chemistry. A compound whose molecule contains a saturated pyran ring, esp. a sugar having this structure. Frequently attributive. ΘΚΠ the world > matter > chemistry > organic chemistry > carbohydrates > sugars > monosaccharides > [noun] > by number of carbon atoms > pyranose pyranose1927 1927 Goodyear & Haworth in Jrnl. Chem. Soc. 3141 On the basis of the conclusions now reached, the formula (A) must be accepted as a general representation of a normal sugar, which might be described as a pyranose. 1953 J. S. Fruton & S. Simmonds Gen. Biochem. xvii. 380 The open-chain form [of fructose]..is in equilibrium with the corresponding pyranose and furanose forms; in solutions of the free sugar, the pyranose form predominates. 1974 J. B. Finean et al. Membranes & Cellular Functions ii. 30 The minimal structural requirements for a molecule to be recognized by the sugar transport system in mammalian intestine are met by 6 carbon pyranose sugars bearing a hydroxyl on carbon 2. 2005 M. K. Campbell & S. O. Farrell Biochem. (ed. 5) xvi. 439 The six-membered rings of pyranoses actually exist in solution in the chair conformation. This entry has been updated (OED Third Edition, December 2007; most recently modified version published online March 2022). < |
随便看 |
英语词典包含1132095条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。