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A physico-chemical comparative study on extracellular carbohydrate polymers from five desert algae
Hokputsa, S; Hu, CX; Paulsen, BS; Harding, SE; Harding, SE, Univ Nottingham, Sch Biosci, NCMH Phys Biochem Lab, Sutton Bonington Campus, Loughborough LE12 5RD, Leics, England
2003
Source PublicationCARBOHYDRATE POLYMERS
Volume54Issue:1Pages:27-32
AbstractHydrodynamic properties of five newly isolated algal extracellular polysaccharides with putative adhesive properties are described, using a combination of size exclusion chromatography, total or 'multi-angle' laser light scattering and analytical ultracentrifugation. The respective polysaccharides had been extracted from four filamentous cyanobacteria: Microcoleus vaginatus, Scytonema javanicum, Phormidium tenue and Nostoc sp. and a coccoid single-cell green. algae Desmococcus olivaceus that had been separated from desert algal crusts of the Chinese Tegger Desert. SEC/MALLS experiments showed that the saccharides had, diverse-weight average molecular weights ranging from 4000 to 250,000 g/mol and all five showed either bi-modal or tri-modal molecular weight distribution profiles. Use of the Mark-Houwink-Kuhn-Sakurada (MHKS) scaling relationship between sedimentation coefficient and (weight average) molecular weight for the five samples, assuming a homologous conformation series revealed an MHKS b exponent of (0.33 +/- 0.04), suggesting a conformation between that of a stiff rod (b similar to 0.18) and a random coil (b similar to 0.4-0.5), i.e. a 'flexible rod' or 'stiff coil'. (C) 2003 Elsevier Ltd. All rights reserved.
KeywordDesert Algal Polysaccharide Hydrodynamic Characterization
DepartmentUniv Nottingham, Sch Biosci, NCMH Phys Biochem Lab, Loughborough LE12 5RD, Leics, England; Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China; Univ Oslo, Inst Pharm, N-0316 Oslo, Norway
Subject AreaChemistry ; Applied ; Organic ; Chemistry ; Polymer Science
Indexed BySCI
WOS IDWOS:000185071800004
Citation statistics
Cited Times:27[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/9660
Collection期刊论文
Corresponding AuthorHarding, SE, Univ Nottingham, Sch Biosci, NCMH Phys Biochem Lab, Sutton Bonington Campus, Loughborough LE12 5RD, Leics, England
Recommended Citation
GB/T 7714
Hokputsa, S,Hu, CX,Paulsen, BS,et al. A physico-chemical comparative study on extracellular carbohydrate polymers from five desert algae[J]. CARBOHYDRATE POLYMERS,2003,54(1):27-32.
APA Hokputsa, S,Hu, CX,Paulsen, BS,Harding, SE,&Harding, SE, Univ Nottingham, Sch Biosci, NCMH Phys Biochem Lab, Sutton Bonington Campus, Loughborough LE12 5RD, Leics, England.(2003).A physico-chemical comparative study on extracellular carbohydrate polymers from five desert algae.CARBOHYDRATE POLYMERS,54(1),27-32.
MLA Hokputsa, S,et al."A physico-chemical comparative study on extracellular carbohydrate polymers from five desert algae".CARBOHYDRATE POLYMERS 54.1(2003):27-32.
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