174. The effect of commercial sterilization on the nutritive value of milk. IV. Effect on the vitamin B complex, on vitamin B1 and on vitamin B2 (flavin) of milk

Abstract

1. The effect of commercial sterilization on the vitamin B complex, vitamin Bx and vitamin B₂ (flavin) of milk has been investigated in experiments on rats using milk from the same bulk before and after heat treatment.2. No quantitative comparisons were carried out regarding the vitamin B complex, but the tests showed that a considerable destruction of some component or components of it had been caused by the heat treatment and that vitamin B₁ was, most probably, one of them.3. Separate tests showed that about one-third of the vitamin B₁ originally present in milk was destroyed by sterilization.4. Sterilization appeared to have no adverse effect on vitamin B₂ (flavin).