Measurement of ionic calcium, pH, and soluble divalent cations in milk at high temperature

Variations in ionic calcium with temperature, measured in UF permeates.

pH of milk measured during ultrafiltration of milk at different temperatures for 3 different batches of milk. Some values for the corresponding permeates are given in Table 2.

Variations in ionic calcium with temperature, measured in dialysates.

The relationship between ionic calcium and temperature for dialyzed samples over the range from 90 to 120°C; values taken for milk at 20°C are also included.

The effects of calcium chloride addition on the relationship between ionic calcium and pH at 20°C and 110°C.