Nutrition and metabolic studies of methyl esters of dimeric fatty acids in the rat.
Methyl esters of dimeric fatty acids were prepared by fractionating a mixture of conjugated linoleic and oleic acids that was heated for 24 hr at 300 C in the absence of air. Rats fed diets containing less than 1% dimers showed no significant difference (P less than 0.05) in the growth rate, feed efficiency, liver:body weight ratio, and lipid:liver weight ratio from those fed normal diets. A lymph cannulation study using 14C labeled dimers showed that ca. 0.4% of the dimers fed were absorbed within 12 hr and were transported as free acids in the lymph. Within a 28 hr period, 2% of the labeled dimers fed by gastric intubation were oxidized to 14CO2, and 1% radioactivity was recovered from the urine. The metabolism of methyl oleate appeared normal for rats prefed diets containing dimers.
D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D001835:Body Weight; D002849:Chromatography, Gas; D002855:Chromatography, Thin Layer; D004041:Dietary Fats; D005227:Fatty Acids / Q000378:metabolism*; D008099:Liver / Q000378:metabolism; D008297:Male; D009929:Organ Size; D009928:Organ Specificity; D051381:Rats
D004041:Dietary Fats; D005227:Fatty Acids