1 answer

Sephadex& is a commercially produced branched homopolysaccharide. It contains alpha- glycosidic l...

Question:

Sephadex& is a commercially produced branched homopolysaccharide. It contains alpha- glycosidic linkages at carbons 2, 3, 4,
PLEASE HELP !!!!
Sephadex& is a commercially produced branched homopolysaccharide. It contains alpha- glycosidic linkages at carbons 2, 3, 4, and 6. The degree of cross-linking at those carbons can be controlled, yielding holes within the polymer of known size. 2. a. What lab method (which we learned about in class) can use such a molecule? b. Explain how this method works. c. What is the monosaccharide from which Sephadex® is made? d. Draw the disaccharide formed when 2 units of this monomer are linked by an a(14) glycosidic bond.

Answers

1. Cross linked Dextran gel is marketed under the trade name Sephadex and is employed in gel filtration or size exclusion chromatography

Sephadex is prepared by cross-linking of Dextran with epichlorohydrin and by varying the composition the degree of cross linking can be varied for size specific applications.

Dextran is a complex branched polysachharide derived from polycondensation of glucoseCubot tH It 1H 0W он H OH a H

.

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