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Mössbauer characterisation of Fe–polygalacturonate as a medicine for human anaemia: the effect of iron concentration

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57Fe Mössbauer spectroscopy was used to study the effect of iron concentration on the oxidation state and microenvironments of iron in Fe–polygalacturonate compounds prepared by a novel method from pectin. The iron concentration of the coordination compounds was determined by inductively coupled plasma optical emission spectrometry analysis. The Mössbauer spectra of the studied compounds could be decomposed into three markedly different quadrupole doublets referring to three microenvironments. Two of these have ferrous and one has ferric oxidation state. In the applied concentration range the relative occurrence of the ferric component was found to increase considerably with iron concentration. At the same time, with increasing iron concentration the relative occurrence characteristic of the three components showed saturation behaviour up to the iron concentration at which for each pair of galacturonic acid units there is on average one iron atom in the system, which iron concentration value is interpreted as to be related to the complete fill up of certain iron complexation sites of the polygalacturonate chains.

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Authors and Affiliations

  1. Institute of Materials and Environmental Chemistry, Chemical Research Center, Hungarian Academy of Sciences, Pusztaszeri út 59-67, 1025, Budapest, Hungary

    Judit Fodor, Zoltán May & Klára Szentmihályi

  2. Department of Nuclear Chemistry, Institute of Nanochemistry and Catalysis, Chemical Research Center, Hungarian Academy of Sciences, Budapest, Hungary

    Ernő Kuzmann

  3. Eötvös Loránd University, Pázmány P. sétány 1/a, 1117, Budapest, Hungary

    Ernő Kuzmann

  4. Institute of Chemistry, Eötvös Loránd University, Pázmány P. sétány 1/a, 1117, Budapest, Hungary

    Attila Vértes & Zoltán Homonnay

  5. Department of Surface Modifications and Nanostructures, Institute of Nanochemistry and Catalysis, Chemical Research Center, Hungarian Academy of Sciences, Pusztaszeri út 59-67, 1025, Budapest, Hungary

    Zoltán Klencsár

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  1. Judit Fodor
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  2. Ernő Kuzmann
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  3. Attila Vértes
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  4. Zoltán Homonnay
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  5. Zoltán Klencsár
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  6. Zoltán May
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  7. Klára Szentmihályi
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Correspondence to Judit Fodor.

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Fodor, J., Kuzmann, E., Vértes, A. et al. Mössbauer characterisation of Fe–polygalacturonate as a medicine for human anaemia: the effect of iron concentration. Hyperfine Interact 190, 101–108 (2009). https://doi.org/10.1007/s10751-009-9970-3

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  • DOI: https://doi.org/10.1007/s10751-009-9970-3

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