Figure 2.
(A) Overlayed 1H NMR spectra of β-casein at pH 5.9 and temperature of 20 °C (purple), β-casein at pH 5.9 and temperature of 4 °C (blue), β-casein at pH 7.0 and temperature of 20 °C (green) and β-casein at pH 7.0 and temperature of 4 °C (red). (B) Overlayed TOCSY NMR spectra of β-casein at pH 7.0 (red) and β-casein at pH 5.9 (blue).