NUTRITION
CARBOHYDRATES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Raffinose is product of the reaction among:
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Galactose, Glucose and Fructose.
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Galactose, Glucose and Glucose
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Galactose, Fructose and Fructose.
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Fructose, Glucose and Glucose
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Explanation:
Detailed explanation-1: -Raffinose (a trisaccharide) on hydrolysis gives three monosaccharides, galactose, glucose, and fructose.
Detailed explanation-2: -From the structural perspective, they are considered -galactosyl derivatives of sucrose. Raffinose contains galactose, glucose, and fructose. Stachyose holds two -D-galactose units, one -D-glucose unit, and one -D-fructose unit.
Detailed explanation-3: -Raffinose is a trisaccharide in which glucose acts as a monosaccharide bridge between galactose and fructose. It has both and glycosidic bonds and can therefore be hydrolyzed to d-galactose and sucrose via enzymes with -glycosidic activity, and to melibiose and d-fructose via enzymes with -glycosidic activity.
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