Compute the total number of stereoisomers the trisaccharide

Reference no: EM13658146

Explain a non-reducing sugar found in honey has the molecular formula C18H32O16. Acidic hydrolysis gives 1 mole D-fuctose, 1 mole

D-galactose, and 1 mole D-glucose having the subsequent structural formulas:

D glucose- CHO-CHOH-COHH-CHOH-CHOH-CH2OH

D-galactose-CHO-CHOH-CHOH-CHOH-CHOH-CH2OH

D-fructose-CH2OH-C=O-CHOH-CHOH-CHOH-CH2OH

a) Compute the total number of stereoisomers possible for this trisaccharide

b) Depict Fisher projections for all D and L stereoisomers of fructose. Give an example of diasteromers

c) Utilizing ring structures (Haworth Projections) draw the structural formula for the trisaccharide.

d) 1. Name the glycosidic linkages in Part C

2. Give the complete name of a glucose ring used in part C

e) An optically active solution of D-glucose was allowable to stand for several days. Explain the solution showed no optical activity after standing.

Reference no: EM13658146

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