Table 3.

Protein, ash, and total solids content (% w/w) of concentrated skim milk solutions at 30% w/w total solids at pHs 6.1, 6.3, 6.5, and 6.7 after heating through recirculation through the fouling rig at 85 °C for 90 min. Unheated control was not subjected to any heat treatment. Samples analyzed after heating are abbreviated to ‘AH’.

Sample	Total Solids	Protein	Ash
		(%w/w)
Unheated Control	30.3 ± 0.17 a	9.45 ± 0.34 a	2.00 ± 0.02 a
pH 6.1 AH	23.3 ± 0.48 b	7.87 ± 0.77 b	1.67 ± 0.07 b
pH 6.3 AH	24.0 ± 0.82 bc	8.02 ± 0.72 c	1.74 ± 0.02 c
pH 6.5 AH	24.6 ± 0.82 bc	8.20 ± 1.29 c	1.74 ± 0.04 c
pH 6.7 AH	24.9 ± 0.32 c	8.50 ± 0.46 c	1.76 ± 0.07 c

Results are the means of data from two independent trials. Mean values with different superscript letters within a column are significantly different (p < 0.05).