[Retention of several vitamins during ultra-high temperature sterilization of milk]. / Retention von einigen Vitaminen während der Ultrahocherhitzung von Milch.

Four independent studies were conducted in the course of two years to determine the retentions (or the losses) of vitamin A, beta-carotene, vitamin B1, vitamin B6, nicotinic acid and pantothenic acid during the ultra-high temperature sterilization of pre-pasteurized milk (85 degrees C without hold-up time) by means of the Alfa-Laval-Vtis-C apparatus (140 degrees C, 3-4 s, direct heating with subsequent expansion). The following retentions (or losses) were stated: vitamin A, 97.2% (2.8%); beta-carotene, 93.9% (6.1%); vitamin B1, 82.2% (12.0%); vitamin B2, 97.6% (2.4%); vitamin B6, 92.7% (7.3%) nicotinic acid, 96.0% (4.0%); and pantothenic acid, 96.4% (3.6%).