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Question CI.31: Panose is a trisaccharide that is being considered as a poss...

Panose is a trisaccharide that is being considered as a possible sweetener by the food industry. (13.4, 13.5, 13.6)

a. What are the monosaccharide units A, B, and C in panose?

b. What type of glycosidic bond connects monosaccharides A and B?

c. What type of glycosidic bond connects monosaccharides B and C?

d. Is the structure drawn as α- or β-panose?

e. Why would panose be a reducing sugar?

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a. A, B, and C are all glucose.
b. An α(1→6)-glycosidic bond links A and B.
c. An α(1→4)-glycosidic bond links B and C.
d. β-panose
e. Panose is a reducing sugar because it has a free hydroxyl group on carbon 1 of structure C, which allows glucose C to form an aldehyde.

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