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1962•Canadian Journal of ChemistryRequires access

HYDROLYSIS PRODUCTS OF PERIODATE-OXIDIZED PHOSPHOMANNAN Y-2448

Allene Jeanes, J. E. Pittsley, P. R. Watson, J. H. Sloneker

Open publisher page 17 citations

Abstract

Sequences of at least three α-1,3-linked mannose units have been shown to occur in phosphomannan Y-2448 through isolation of 3-O-[3-O-(α-D-mannopyranosyl)-α-D-mannopyranosyl]-D-mannose from partial acid hydrolyzates of both the native and the periodateoxidized phosphomannan. 3-O-(α-D-Mannopyranosyl)-D-mannose has been obtained also. The mannosidic bond in these oligosaccharides appears to be more stable to acid hydrolysis than that by which the mannose 6-phosphate unit is held in this macromolecular polysaccharide derivative. It has been established that the D-mannose 6-phosphate unit is oxidized by periodate and that orthophosphate is the form which occurs in this phosphomannan.

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What this paper is about

Sequences of at least three α-1,3-linked mannose units have been shown to occur in phosphomannan Y-2448 through isolation of 3-O-[3-O-(α-D-mannopyranosyl)-α-D-mannopyranosyl]-D-mannose from partial acid hydrolyzates of both the native and the periodateoxidized phosphomannan. 3-O-(α-D-Mannopyranosyl)-D-mannose has been obtained also. The mannosidic bond in these oligosaccharides appears to be more stable to acid hydrolysis than that by which the mannose 6-phosphate unit is held in this macromolecular polysaccharide derivative. It has been established that the D-mannose 6-phosphate unit is oxidized by periodate and that orthophosphate is the form which occurs in this phosphomannan.

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Available abstract

Sequences of at least three α-1,3-linked mannose units have been shown to occur in phosphomannan Y-2448 through isolation of 3-O-[3-O-(α-D-mannopyranosyl)-α-D-mannopyranosyl]-D-mannose from partial acid hydrolyzates of both the native and the periodateoxidized phosphomannan. 3-O-(α-D-Mannopyranosyl)-D-mannose has been obtained also. The mannosidic bond in these oligosaccharides appears to be more stable to acid hydrolysis than that by which the mannose 6-phosphate unit is held in this macromolecular polysaccharide derivative. It has been established that the D-mannose 6-phosphate unit is oxidized by periodate and that orthophosphate is the form which occurs in this phosphomannan.

Key concepts: Chemistry, Periodate, Mannose, Hydrolysis, Acid hydrolysis, Polysaccharide, Derivative (finance), Macromolecule

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HYDROLYSIS PRODUCTS OF PERIODATE-OXIDIZED PHOSPHOMANNAN Y-2448 — Research Paper | ScholarLens