Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1385778 | Carbohydrate Polymers | 2006 | 5 Pages |
Abstract
A polysaccharide with an estimated weight-average molar mass of 4.6×105 was obtained from an aqueous extract of pseudobulbs of Cyrtopodium cardiochilum Lindl. by fractionation on Sephacryl S-300 HR and Sephadex G-25. Chemical and spectroscopic studies indicated that it has a backbone of (1→4)-linked β-d-mannopyranosyl residues and β-d-glucopyranosyl residues, and is demonstrated to be composed of d-mannose and d-glucose in 2:1 molar ratios. It was found to contain 4.2% of acetyl groups substituted at O-2 of (1→4)-linked β-d-Manp and β-d-Glcp. The polysaccharide inhibits capillary permeability and demonstrates phagocytosis stimulating property.
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Authors
Daniel Weingart Barreto, José Paz Parente,