Table 1 shows the changes in pH of the beverages after the addition of CaGP. The pH of Coca-ColaTM and Sprite ZeroTM before the addition of CaGP was 2.72 and 2.87, respectively. For both drinks, it remained almost constant with the addition of CaGP up to 2.0 mM. However, for the addition of CaGP at 5.0 and 10.0 mM, the pH increased to 4.37 and 5.29, respectively, for Coca-ColaTM and to 3.20 and 3.47, for Sprite ZeroTM, respectively.