Abstract
It has been found by gel-penetrating chromatography and quantitative 13C NMR spectroscopy that mechanochemical processing of arabinogalactan isolated from the wood of the Siberian larch changes the molecular mass distribution, monosaccharide composition, and the degree of branching of its macromolecules. This is due to the partial destruction of polysaccharide macromolecules and subsequent recombination of resulting fragments. The intensity of these processes depends on the conditions of mechanochemical processing. Based on the data of IR and 13C NMR spectra, the conclusion has been drawn that no functionalization of arabinogalactan macromolecules occurs under these conditions. The toxicopharmacological properties of mechanically processed arabinogalactan have been studied. Its acute toxicity is >5000 mg/kg.
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Abbreviations
- AG:
-
arabinogalactan
- AP:
-
arterial pressure
- ECG:
-
electrocardiogram
- GPC:
-
gel-penetrating chromatography
- MMD:
-
molecular mass distribution
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Original Russian Text © E.N. Medvedeva, N.A. Neverova, T.E. Fedorova, V.A. Babkin, E.S. Meteleva, A.V. Dushkin, T.G. Tolstikova, M.V. Khvostov, M.P. Dolgikh, 2010, published in Khimiya Rastitel’nogo Syr’ya, 2009, No. 3, pp. 49–56.
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Medvedeva, E.N., Neverova, N.A., Fedorova, T.E. et al. Structural transformations of arabinogalactan from the Siberian larch during mechanochemical processing and the biological properties of the products. Russ J Bioorg Chem 36, 853–859 (2010). https://doi.org/10.1134/S1068162010070101
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DOI: https://doi.org/10.1134/S1068162010070101