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Xylitol occurs naturally in small amounts in plums, strawberries, cauliflower, and pumpkin; humans and many other animals make trace amounts during metabolism of carbohydrates. [10] Unlike most sugar alcohols, xylitol is achiral. [12] Most other isomers of pentane-1,2,3,4,5-pentol are chiral, but xylitol has a plane of symmetry.
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Sugar alcohols can be, and often are, produced from renewable resources.Particular feedstocks are starch, cellulose and hemicellulose; the main conversion technologies use H 2 as the reagent: hydrogenolysis, i.e. the cleavage of C−O single bonds, converting polymers to smaller molecules, and hydrogenation of C=O double bonds, converting sugars to sugar alcohols.
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ISO 233-2:1993 is an ISO schema for the simplified transliteration of Arabic characters into Roman characters and is dedicated to "Arabic language – Simplified transliteration". This transliteration system was adopted as an amendment to ISO 233:1984.
[1] [3] L-Xylulose is a reducing sugar, so it may give false diagnosis of diabetes, as it is found in high concentrations in urine. However glucose metabolism is normal in people with pentosuria, and they are not diabetic. [4] Patients of pentosuria have a low concentration of the sugar d-xyloketose. [5]
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Download as PDF; Printable version; ... Official Unicode Consortium code chart (PDF) ... Unicode chart Arabic Supplement}} provides a list ...