Slootmaekers D, van Dijk JA, Varkevisser FA, van Treslong CJ, Reynaers H. Molecular characterisation of kappa- and lambda-carrageenan by gel permeation chromatography, light scattering, sedimentation analysis and osmometry.
Biophys Chem 1991;
41:51-9. [PMID:
1751771 DOI:
10.1016/0301-4622(91)87209-n]
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Abstract
Gel permeation chromatography, in conjunction with a double detection system involving a low angle laser light scattering apparatus (LALLS) and a refractive index monitoring device (RI), has been used to obtain both the molecular weight and the molecular weight distribution of sodium salts of kappa-carrageenan and lambda-carrageenan in saline solutions. The results, Mw and Mn, are in excellent agreement with independent determinations of molar mass based on static light scattering experiments, sedimentation-diffusion analysis and osmometry. The relevance of the data is discussed with respect to current problems in carrageenan research.
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