Studies on the Molecular Distillation of Whale Liver Oils-I

Abstract

The preparation of vitamin A concentrate by molecular distillation was tested on some whale liver oils. The yield of each distillates and its vitamin A potency were tabulated in Tab. 1-6 and the absorption curves of each fraction were shown in Fig. 1-9. The potency of vitamnin A was corrected according to Oser's method. In the experiments, the following results were noticable.