In Vivo Anti-Radiation Activities Of The Ulva Pertusa Polysaccharides And Polysaccharide-Iron(Iii) Complex
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES(2013)
Abstract
Polysaccharides with different molecular weights were extracted from Ulva pertusa and fractionated by ultrafiltration. Iron(III) complex of the low molecular-weight U. pertusa polysaccharides were synthesized. Atomic absorption spectrum showed that the iron content of iron(III)-polysaccharide complex was 27.4%. The comparison between U. pertusa polysaccharides and their iron(III) complex showed that iron chelating altered the structural characteristics of the polysaccharides. The bioactivity analysis showed that polysaccharide with low molecular weight was more effective than polysaccharide with high molecular weight in protecting mice from radiation induced damages on bone marrow cells and immune system. Results also proved that the anti-radiation and anti-oxidative activity of iron(III) complex of low molecular-weight polysaccharides were not less than that of low molecular-weight polysaccharides. (C) 2013 Elsevier B.V. All rights reserved.
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Key words
Iron complex,Multifunctional food,Polysaccharides,Radiation damage,Ulva pertusa
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