Abstract
Summary
Five groups of weanling rats were kept for 59 days in individual cages and fed adequate diets which contained 2% cottonseed oil and 10% of the following fats: 1) corn oil, 2) oxidized corn oil, 3) hydrogenated oxidized corn oil, 4) fatty acids from oxidized corn oil, and 5) 10% oxidized fatty acids plus 90% fresh fatty acids from corn oil. All animals were restricted to the same amount of daily food intake as those fed corn oil and samples of feces collected for lipid analysis. At the end of the test period the animals were sacrificed; the carcass lipids were extracted, converted to methyl esters and subjected to gas liquid chromatographic analysis. The results indicated that hydroxy acids, originating from oxidized fats, are deposited and influence the character of the normal mixed fatty acid composition of the carcass fat.
The authors are happy to acknowledge the invaluable assistance of Mrs. Alberta F. Perkins, Messrs. Frank Kosco, L. A. Michael and H. J. Ast in obtaining the analytical data reported herein; and Dr. R. J. VanderWal for encouragement throughout this work.
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