英语词汇“levulosan”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	levulosan
释义	lævulosan, levulosan Chem.\|ˈliːvjʊləsæn\| Also -ane (see next). [ad. F. lévulosane (A. Gélis 1860, in Compt. Rend. LI. 333), f. lévulose lævulose, levulose.] a. An anhydride, C₆H₁₀O₅, of lævulose. ? Obs. 1862H. Watts tr. Gmelin's Hand-bk. Chem. XV. 338 Cane-sugar quickly heated to 160°, and kept in the melted state at that temperature for a moderate time, is converted into..lævulosan and dextro-glucose.1887Encycl. Brit. XXII. 624/1 It [sc. lævulose] fuses at 95° C.; at 170° it passes into lævulosan, C₆H₁₀O₅, analogous to glucosan. b. Any polysaccharide composed chiefly of lævulose residues. Cf. levan. 1913Chem. Abstr. VII. 3511 (heading) Hydrolysis of levulosans and application to vegetable analysis.1931[see fructosan].1966Nowakowski & Clarke tr. Kretovich's Princ. Plant Biochem. ix. 295 Higher plants also contain enzymes which catalyse the conversion of sucrose into a variety of polyglucosides and polyfructosides. In some plants (members of the Graminae and Liliaceae) levulosans..function as transport carbohydrates.
随便看	commutate commutation commutative commutatively commutativeness commutativity commutator commutatorial commute commuter commutual commy- commyn commynicate commère comnalte comnant comnaunte comocion comode comodrama comody como-graphy comoid comon

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