Structure of the oligosaccharides isolated from Prosopis juliflora (Sw.) DC. seed polysaccharide

•Partial hydrolysis of polysaccharide furnished three oligosaccharides.•Hydrolysis followed by GLC analysis furnished d-galactose and d-mannose.•Further studies indicated (1→4) mannose units linked to (1→6) galactose units. A water soluble polysaccharide isolated from Prosopis juliflora seed was pur...

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Veröffentlicht in:Carbohydrate polymers 2014-01, Vol.101, p.438-443
Hauptverfasser: Bhatia, Himani, Gupta, P.K., Soni, P.L.
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description •Partial hydrolysis of polysaccharide furnished three oligosaccharides.•Hydrolysis followed by GLC analysis furnished d-galactose and d-mannose.•Further studies indicated (1→4) mannose units linked to (1→6) galactose units. A water soluble polysaccharide isolated from Prosopis juliflora seed was purified and major homogenous fraction obtained by GPC. Complete hydrolysis of the polysaccharide followed by paper chromatography and GLC analysis indicated the presence of d-galactose and d-mannose in the ratio 1:1.10, respectively. Partial hydrolysis of the polysaccharide furnished one hepta-(I), one octa-(II) and nona-(III) saccharides. Hydrolysis of oligosaccharide I, II and III followed by GLC analysis furnished d-galactose and d-mannose in the ratio 3:4, 3:5 and 5:4, respectively. Methylation analysis, periodate oxidation and 1H NMR spectral studies of oligosaccharides indicated the presence of (1→4) mannose units linked to (1→6) galactose units.
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Hydrolysis of oligosaccharide I, II and III followed by GLC analysis furnished d-galactose and d-mannose in the ratio 3:4, 3:5 and 5:4, respectively. Methylation analysis, periodate oxidation and 1H NMR spectral studies of oligosaccharides indicated the presence of (1→4) mannose units linked to (1→6) galactose units.</description><identifier>ISSN: 0144-8617</identifier><identifier>EISSN: 1879-1344</identifier><identifier>DOI: 10.1016/j.carbpol.2013.09.039</identifier><identifier>PMID: 24299795</identifier><identifier>CODEN: CAPOD8</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Applied sciences ; Biological and medical sciences ; Carbohydrate Sequence ; Chemical constitution ; Exact sciences and technology ; Fundamental and applied biological sciences. 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source MEDLINE; Elsevier ScienceDirect Journals
subjects Applied sciences
Biological and medical sciences
Carbohydrate Sequence
Chemical constitution
Exact sciences and technology
Fundamental and applied biological sciences. Psychology
Galactomannan
Hydrolysis
Molecular Sequence Data
Natural polymers
Oligosaccharide
Oligosaccharides - chemistry
Physicochemistry of polymers
Plant physiology and development
Polysaccharide
Prosopis - chemistry
Prosopis juliflora (Sw.) DC
Seeds - chemistry
Solubility
Starch and polysaccharides
Structure
Water - chemistry
title Structure of the oligosaccharides isolated from Prosopis juliflora (Sw.) DC. seed polysaccharide
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