Abstract
To explore the mechanism of lysozyme stabilization in buffer system, we have investigated the interactions between lysozyme and the biological buffers (TRIS, TAPS, and TES) using spectroscopic techniques, including ultraviolet-visible (UV–Vis), fluorescence, thermal fluorescence, dynamic light scattering (DLS), Fourier transform infrared spectroscopy (FTIR) and circular dichroism (CD) spectroscopy. From the series of spectroscopic studies, it is found that the native structure of the protein remains intact in the different concentrations (0.05, 0.1, 0.25, 0.5, and 1.0M) of the biological buffer aqueous solutions at pH7.0. Moreover, all these three investigated buffers are able to protect lysozyme against thermal denaturation, particularly in high concentration (1.0M) of the buffer aqueous solutions.
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