Abstract
The interaction of myoglobin with tannin (tannic acid) at 298.15 and 303.15 K was studied by fluorescence and absorption spectroscopy in the UV region. The physicochemical and thermodynamic binding parameters (the fluorescence quenching mechanism, the bonding constant, the number of binding sites, the type of interaction) and parameters of the formed complex were determined. It was found that binding of myoglobin with tannic acid does not lead to significant changes in the electronic state of the heme ring of myoglobin.
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