Abstract
Mice fed with wheat dough fried with rancid soybean oil (peroxide value: 512) gained less body weights than those fed with that fried with non-rancid oil (peroxide value: 8. 0). The more the amount of BHA added to the oil, the less the increase of body weight of mice fed with these oils was.In the case of 0.1% BHA, for an example, the increase of the body weight ceased at the 7th day from the commencement of the experiment, and then this was diminished.The features of the fur got worse. Of three antioxidants examined, BHA, BHT, and hydroquinone, BHA was observed to have the strongest toxicity and hydroquinone the weakest. The toxic effect of these antioxidants could be reduced by the heating of the oil containing them for 1 or 2 hours.