xylitol
xy·li·tol
X0010250 (zī′lĭ-tôl′, -tōl′, -tŏl′)xylitol
(ˈzaɪlɪˌtɒl)xy•li•tol
(ˈzaɪ lɪˌtɔl, -ˌtɒl)n.
单词 | xylitol |
释义 | xylitolxy·li·tolX0010250 (zī′lĭ-tôl′, -tōl′, -tŏl′)xylitol(ˈzaɪlɪˌtɒl)xy•li•tol(ˈzaɪ lɪˌtɔl, -ˌtɒl)n. Xylitolxylitol[′zī·lə‚tȯl]XylitolCH2OH(CHOH)3CH2OH a polyhydric alcohol (pentitol), an optically inactive isomer; colorless hygroscopic crystals with a sweet taste. Xylitol is soluble in water, alcohol, glycols, acetic acid, and pyridine. It has the same calorific value as sugar (4 kcal/g) but is twice as sweet; however, it has no biological value. It has no adverse effect on organisms and is therefore used in the food industry, for example, as a sugar substitute in the manufacture of sweet edibles for individuals suffering from diabetes and obesity. Xylitol exhibits a cholagogic and aperient effect; the prescribed daily dosage should not exceed 50 g. It can also be used in the preparation of esters, surface-active agents, and synthetic resins. In industry xylitol is prepared by the reduction of xylose; vegetable byproducts such as corn cobs and cotton husks serve as raw material for this process. xylitolxylitol[zi´lĭ-tol]xy·li·tol(zī'li-tol),xylitol(zī′lĭ-tôl′, -tōl′, -tŏl′)xy·li·tol(zī'li-tol)xylitolA polyol sugar alcohol found in plums, strawberries, raspberries, and birch trees that reduces the growth of Streptococcus mutans and the resulting acid production which is the most important cause of dental caries. Xylitol-sweetened chewing gum has also been found effective in preventing OTITIS MEDIA.xy·li·tol(zī'li-tol) |
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