Tags

Type your tag names separated by a space and hit enter

Chemical characteristics of a polysaccharide from Porphyra capensis (Rhodophyta).
Carbohydr Res. 2005 Oct 31; 340(15):2447-50.CR

Abstract

The structure of a polysaccharide from the red seaweed, Porphyra capensis, growing along the coast of Namibia and South Africa was investigated. Algae growing at different sites and collected at different times gave a polysaccharide extract with similar chemical components. FTIR and NMR spectral analysis showed that the polysaccharide from P. capensis had a typical porphyran structure. It has the linear backbone of alternating 3-linked beta-D-galactose and 4-linked alpha-L-galactose-6-sulfate or 3,6-anhydro-alpha-L-galactose units. The ratio of alpha-L-galactose-6-sulfate and the 3,6-anhydrogalactose is 1.2:1, as reflected by a 1H NMR spectrum. A high degree of methylation occurred at the C-6 position of the D-galactose units. The degree of methylation was 0.64 for the D-galactose residues.

Authors+Show Affiliations

Zhang Q
Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China. qbzhang@ms.qdio.ac.cn
Qi H
No affiliation info available
Zhao T
No affiliation info available
Deslandes E
No affiliation info available
Ismaeli NM
No affiliation info available
Molloy F
No affiliation info available
Critchley AT
No affiliation info available

MeSH

Carbohydrate SequenceGalactoseMethylationNuclear Magnetic Resonance, BiomolecularPolysaccharidesPorphyraSpectroscopy, Fourier Transform Infrared

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

16150429

Citation

Zhang, Quanbin, et al. "Chemical Characteristics of a Polysaccharide From Porphyra Capensis (Rhodophyta)." Carbohydrate Research, vol. 340, no. 15, 2005, pp. 2447-50.
Zhang Q, Qi H, Zhao T, et al. Chemical characteristics of a polysaccharide from Porphyra capensis (Rhodophyta). Carbohydr Res. 2005;340(15):2447-50.
Zhang, Q., Qi, H., Zhao, T., Deslandes, E., Ismaeli, N. M., Molloy, F., & Critchley, A. T. (2005). Chemical characteristics of a polysaccharide from Porphyra capensis (Rhodophyta). Carbohydrate Research, 340(15), 2447-50.
Zhang Q, et al. Chemical Characteristics of a Polysaccharide From Porphyra Capensis (Rhodophyta). Carbohydr Res. 2005 Oct 31;340(15):2447-50. PubMed PMID: 16150429.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Chemical characteristics of a polysaccharide from Porphyra capensis (Rhodophyta). AU - Zhang,Quanbin, AU - Qi,Huimin, AU - Zhao,Tingting, AU - Deslandes,Eric, AU - Ismaeli,Ninasayaeli Mbise, AU - Molloy,F, AU - Critchley,Alan T, PY - 2005/07/07/received PY - 2005/08/12/accepted PY - 2005/9/10/pubmed PY - 2006/1/7/medline PY - 2005/9/10/entrez SP - 2447 EP - 50 JF - Carbohydrate research JO - Carbohydr Res VL - 340 IS - 15 N2 - The structure of a polysaccharide from the red seaweed, Porphyra capensis, growing along the coast of Namibia and South Africa was investigated. Algae growing at different sites and collected at different times gave a polysaccharide extract with similar chemical components. FTIR and NMR spectral analysis showed that the polysaccharide from P. capensis had a typical porphyran structure. It has the linear backbone of alternating 3-linked beta-D-galactose and 4-linked alpha-L-galactose-6-sulfate or 3,6-anhydro-alpha-L-galactose units. The ratio of alpha-L-galactose-6-sulfate and the 3,6-anhydrogalactose is 1.2:1, as reflected by a 1H NMR spectrum. A high degree of methylation occurred at the C-6 position of the D-galactose units. The degree of methylation was 0.64 for the D-galactose residues. SN - 0008-6215 UR - https://www.unboundmedicine.com/medline/citation/16150429/Chemical_characteristics_of_a_polysaccharide_from_Porphyra_capensis__Rhodophyta__ DB - PRIME DP - Unbound Medicine ER -