When comparing the change in consistency coefficients between
the heated and unheated milk samples (Fig. 5), the consistency
coefficient of the concentrate from milk heated at pH 6.5
increased by about 20%, whereas consistency coefficients of those
at higher pH decreased. The concentrates from milk samples
heated at pH 6.9 and 7.1 had consistency coefficients only about 60%
of those from the unheated milk samples. This change was similar
at all measurement temperatures.