抄録
Seeking a method of unequivocally determining the BHA and BHT added to the marine products, the steam-distillation method (presented by ANGLIN et al.4)) was tentatively applied to the estimation of antioxidants in the extracts obtained by Soxhlet extraction from salted-and-dried saury, the following results being obtained.
By the steam-distillation method, the separation of the antioxidants can be completed far more rapidly than by the solvent-extraction method1), and estimation of BHA is carried out without any trouble, owing to the specific reactivity of 2, 6-dichloroquinonechloroimide (2, 6-D) reagent upon BHA. This method, however, is not suitable for thereby estimating BHT, since the 2, 2'-dipyridyl (2, 2'-DP) reagent reacts on some contaminations coming in the distillates, leading often to ambiguous results just like the case of solvent extracts descrived in the preceeding paper1).