Although the majority of ingested sucralose is not hydrolyzed in the small intes

Question

Although the majority of ingested sucralose is not hydrolyzed in the small intestine, a small amount can be hydrolyzed to produce equimolar amounts of 1,6-dichloro-1,6-dideoxyfructose and 4-chloro-4-deoxygalactose. Are either of the hydrolysis products reducing sugars? Choose one:

A. 1,6-Dichloro-1,6-dideoxyfructose is a nonreducing sugar, and 4-chloro-4-deoxygalactose is a reducing sugar.

B. Both are reducing sugars.

C. Both are nonreducing sugars.

D. 1,6-Dichloro-1,6-dideoxyfructose is a reducing sugar, and 4-chloro-4-deoxygalactose is a nonreducing sugar.

Explanation / Answer

the answer would be B : both are reducing sugars.

sucralose is not a sugar, it is an artificial sweetener and sugar substitute , it is derived from the sucrose by the replacement of 3 hydroxyl group by the chlorine atom at the positions 4', 1' and 6'. it greatly increases the sweetness level. the IUPAC name of sucralose is (1,6-dichloro-1,6-dideoxy-beta-D-fructofuranosyl-4-chloro-4-deoxy-alpha-D-galactopyranoside).

in acid solution, by the influence of temperatureb and pH it hydrolyses slowly to its monosaccharides constituents;1,6-dichloro-1,6-dideoxyfructose and 4-chloro-4-deoxygalactose.

and in literature it has been reported that all monosaccharides are reducing sugars.bacause they have an aldehyde group or if they have ketose group they can tautomerize in solution to form an aldehyde group.

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.