Abstract
EXAFS studies of the calcium environments in polysaccharides have provided important insights into chain conformation and gel formation. Work on Ca2+ poly(α-D-galacturonate) in solid and gel forms ana on solid Ca2+ oligo(α-L-guluronate) is reviewed, with particular emphasis on the need to choose appropriate models mimicking well defined Ca-O bond distributions. The difference in environment for the solids provides the first structural evidence that Ca2+-polysaccharide interactions are sufficiently stereospecific as to participate in the control of gelation and other biologically important processes.
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Alagna, L., Prosperi, T., Tomlinson, A.A.G., Rizzo, R. (1987). EXAFS and XANES Studies of Calcium Polysaccharides. In: Bianconi, A., Congiu Castellano, A. (eds) Biophysics and Synchrotron Radiation. Springer Series in Biophysics, vol 2. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-71490-0_28
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DOI: https://doi.org/10.1007/978-3-642-71490-0_28
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