Changes in Techno-Functional Characteristics of Cow Colostrum Powder Prepared by Freeze Drying

Table 1

Observations related to heat treatment of colostrum samples at selected time-temperature combination.

Milking intervals	1st milking			2nd milking			3rd milking
Time/temperature combination for heat treatment	72°C/15 sec	63°C/30 min	60°C/45 min	72°C/15 sec	63°C/30 min	60°C/45 min	72°C/15 sec	63°C/30 min	60°C/45 min
Gel formation	Yes	No	No	Yes	No	No	Yes	No	No
% reduction in IgG	67.41^a ± 0.19	45.81^b ± 0.16	14.63^c ± 0.18	62.48^d ± 0.19	37.71^e ± 0.16	12.13^f ± 0.18	35.41^g ± 0.19	25.81^h ± 0.16	11.68^i ± 0.18
% reduction in IgA	69.12^a ± 0.27	22.54^b ± 0.21	12.18^c ± 0.16	49.22^d ± 0.27	19.84^e ± 0.21	11.18^f ± 0.16	29.12^g ± 0.27	15.14^h ± 0.21	10.11^i ± 0.16

n = 15, mean + SD; values followed by different alphabets a–i in superscript are significantly different .