Table 6 Whey protein denaturation in heated milk

Heating conditions Denatured %
62~65℃, 30 min 12~20
75℃, 15 min 35
HTST 72~75℃, 15 sec 0.4~4
HTST 85℃, 15 sec 50.3
UHTT 120℃, 2 sec 61.3
UHT 130℃, 2 sec 62.1
UHT 140℃, 2 sec, indirect 64.1
UHT 150℃, 2.4 sec, direct 56.8
Adapted from 祐川, 1984.