| 释义 |
rhamnose Chem.|ˈræmnəʊz|
[a. G. rhamnose (Raýman & Kruis 1887: see Chem. Centralblatt (1888) XIX. 6): see rhamnus and -ose2.]
A methyl pentose sugar with reducing properties which occurs widely in nature, esp. combined as glycosides in berries of the buckthorn and other shrubs of the genus Rhamnus.
1888Jrnl. Chem. Soc. LIV. 667 As the analogy of the sugar C6H12O5 to the dextrose series is brought into prominence, the authors propose to call it rhamnose, because it also appears to be identical with the sugar obtained by Liebermann from Rhamnus. 1888Jrnl. Soc. Chem. Industry VII. 578/1 All alcoholic solutions of crystalline rhamnose are lævo-rotatory. 1890Ibid. IX. 1141/1 Rhamnose is a methyl pentose. 1931E. C. Miller Plant Physiol. viii. 408 Rhamnose, CH3C5H9O5, is a pentose in which one atom of hydrogen has been replaced by a methyl group. 1970R. W. McGilvery Biochem. xxiv. 585 Glycoproteins commonly contain residues of l-fucose..and some have residues of l-rhamnose (6-deoxy-l-mannose)... The mammalian nucleotide carrier of rhamnose is not known for certain.
Hence ˈrhamnoside, a glycoside in which rhamnose is the sugar.
1904Jrnl. Chem. Soc. LXXXVI. i. 681 Rhamnosides. 1907Chem. Abstr. I. 83 Violaquercetrin of Viola tricolor is identical with rhamnoside of buckwheat. 1959New Biol. XXIX. 35 A substance having some characteristics of a sugar and provisionally called a ‘rhamnoside’, has been found in water from the Gulf of Mexico in concentrations of up to 50 milligrams per litre. |