Nutritional properties of the triglycerides of saturated fatty acids of medium chain-length |
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Authors: | Hans Kaunitz Charles A Slanetz Ruth Ellen Johnson Vigen K Babayan George Barsky |
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Affiliation: | (1) Department of Pathology and the Institute of Comparative Medicine, Columbia University, New York;(2) Research and Development Laboratories, E. F. Drew and Company Inc., Boonton, New Jersey |
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Abstract: | Summary The influence of a purified rat diet containing 20 or 33% of the saturated medium chain-length triglycerides (MCT) with and
without linoleic acid supplements on growth, caloric requirements for weight maintenance and weight increase, fertility, lactation
performance, and serum cholesterol levels was compared with that of similar diets containing lard, coconut oil, or no fat.
Among male rats maintained on diets containing 20% lard or 20% MCT and .09% linoleic acid for 18 months no differences were
observed between the groups other than the depressed body weight and lowered serum cholesterol levels of the group fed MCT.
When groups of male rats were kept at constant weight by the daily restricted feeding of diets containing lard, MCT, or coconut
oil or no fat plus 2% linoleic acid, the weight-maintenance requirements of the group fed MCT were higher than of those on
lard and coconut oil and even somewhat higher than the requirements of the animals fed the fat-free diet. The requirements
for weight increase over those for maintenance were 0.9 g. per gram increase for all diets. Additional linoleic acid in the
MCT diet decreased the weight and maintenance differences between groups fed MCT and lard.
The lactation performance of mothers on MCT plus .09% linoleic acid was poor. The second generation animals initially showed
signs of more severe linoleic acid deficiency which however disaappeared without linoleic acid supplements.
Some cholesterol levels of animals on MCT were significantly below those of groups on lard. Addition of linoleic acid to the
MCT diet did not change the results.
Presented at the 48th Annual Meeting, American Oil Chemists’ Society, April 28 to May 1, 1957, New Orleans, La. |
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