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J Asian Nat Prod Res. 2014;16(7):783-9. doi: 10.1080/10286020.2014.898633. Epub 2014 Mar 24.

Isolation, purification, and structural elucidation of polysaccharides from Alhagi-honey.

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a Xinjiang Uygur Autonomous Region Product Quality Supervision and Inspection Institute , Urumqi 830002 , China.


The polysaccharide extract (PE) of Uyghur medicinal preparation Alhagi-honey was prepared by water extraction and alcohol precipitation method. The purified polysaccharide AP1-1 was obtained from PE by macroporous adsorption resin chromatography, DEAE cellulose chromatography, and Sephadex gel chromatography; the homogeneity and the molecular weight of AP1-1 were determined by gel filtration; and the acid hydrolysis, periodate oxidation, Smith degradation, and NMR analysis were used to analyze the chemical structure of AP1-1. The result showed that AP1-1 was a homogeneous polysaccharide, whose relative molecular weight was 9.97 × 10(4). Through high-performance capillary electrophoresis analysis, we found that its molecular structure was composed of mannose, glucose, galactose, and galacturonic acid with a molar ratio of about 1.1:1.9:3.9:2.1. The main chain of AP1-1 was mainly made up of → 4)β-d-GalpA-(1 → 4)β-d-GalpA-(1 → 4)-β-d-Galp-(1 → 4)-β-d-Galp-(1 → 6)α-d-Glcp-(1 → 4)α-d-Glcp(1 → , while the side chain is composed of → 6)-α-d-Glcp and 2-CH3-α-d-Man.


Alhagi-honey; polysaccharide; structural elucidation

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