Living by Chemistry
2nd Edition
ISBN: 9781464142314
Author: Angelica M. Stacy
Publisher: W. H. Freeman
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Chapter U4.79, Problem 1E
Interpretation Introduction
Interpretation:
The evidence that shows aspartame is sweeter than fructose must be explained.
Concept introduction:
Aspartame is an artificial sweetener. It is the methyl ester of a dipeptide made of aspartic acid and phenyl alanine. Fructose is a monosaccharide which is a ketohexose (6 carbons with one keto group).
Expert Solution & Answer
Explanation of Solution
There is a unit to measure the sweetness of artificial sweeteners. Generally, the sweetness is compared with natural sugar sucrose.
Sucrose is a disaccharide containing glucose and fructose. When sucrose is hydrolyzed, it produces 1 mol glucose and 1 mol fructose. None of glucose and fructose is sweeter than sucrose. Aspartame is almost 200 times sweeter than sucrose. Thus, aspartame is much sweeter than fructose.
Chapter U4 Solutions
Living by Chemistry
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