Chemical studies on the polysaccharides of Salicornia brachiata
| Autor: | Arup K. Siddhanta, Naresh D. Sanandiya |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Arabinose
Magnetic Resonance Spectroscopy Polymers and Plastics Salicornia Rhamnose Uronic acid Chenopodiaceae Xylose Polysaccharide Plant Roots chemistry.chemical_compound Polysaccharides Spectroscopy Fourier Transform Infrared Carbohydrate Conformation Materials Chemistry Organic chemistry Fucose chemistry.chemical_classification Chromatography Plant Stems biology Plant Extracts Circular Dichroism Oxalic Acid Monosaccharides Organic Chemistry Glycoside Ammonium oxalate biology.organism_classification chemistry |
| Zdroj: | Carbohydrate Polymers. 112:300-307 |
| ISSN: | 0144-8617 |
| Popis: | A group of 12 polysaccharide extracts were prepared from the tips, stem and roots of an Indian halophyte Salicornia brachiata Roxb. obtained by sequential extractions with cold water (CW), hot water (HW), aqueous ammonium oxalate (OX) and aqueous sodium hydroxide (ALK) solutions. Monosaccharide composition analysis revealed that all the polysaccharide extract samples consisted primarily of rhamnose, arabinose, mannose, galactose, glucose, whereas ribose and xylose were present only in some of the extracts. All the extracts exhibited low apparent viscosity (1.47–2.02 cP) and sulphate and contained no prominent toxic metal ions. Fucose was detected only in OX extract of the roots. These polysaccharides were found to be heterogeneous and highly branched (glycoside linkage analysis, size-exclusion chromatography, 13C-NMR, FT-IR, circular dichroism and optical rotation data). Physico-chemical analyses of these polysaccharides including uronic acid, sulphate and protein contents were also carried out. This constitutes the first report on the profiling of Salicornia polysaccharides. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect