fructose
Noun
Meaning
Fruit sugar; levulose.
Source: Webster's dictionarySynonyms
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After digestion and absorption the principal monosaccharides present in the blood and internal tissues include glucose, fructose, and galactose.
As sucrose comes into contact with the membrane of the small intestine, the enzyme sucrase catalyzes the cleavage of sucrose to yield one glucose unit and one fructose unit, which are then each absorbed.
Apple and pear juices are of particular interest to pediatricians because the high concentrations of free fructose in these juices can cause diarrhea in children.
Cooks use it for sweetening — its fructose component, which has almost double the sweetness of glucose, makes sucrose distinctively sweet in comparison to other carbohydrates.
Dietary fructose also characteristically causes alterations in blood lipid profiles, probably by changing liver operations.
A molecule of sucrose is formed by the combination of a molecule of glucose with a molecule of fructose.