Probing of l-Arginine as an Additive for the Temperature-Induced Aggregation of Veterinary Growth Hormones: Fluorescence Study

The influence of l-arginine on the temperature-induced aggregation of porcine and mink growth hormones was studied by fluorescence spectroscopy. It was found that l-arginine suppresses the heat-induced aggregation. Moreover, the analysis of l-arginine interaction with the native proteins by fluorescence spectroscopy and circular dichroism spectroscopy revealed no significant changes in their native structure. On the basis of the results, l-arginine could be considered as a potential additive for the prevention of storage and temperature-related denaturation and aggregation of veterinary growth hormones.

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