Origin of Odd-numbered Fatty Acids of Adipose Tissue Fats of Rats Fed on Various Diets

Abstract

In our previous paper, we noticed that the accumulation of small amounts of odd-numbered fatty acids in rats fed a diet containing whole egg powder. To clarify whether odd-numbered acids in body fats of rats are derived from diet or not, rats were fed a diet containg soybean and tuna for 3 weeks and the relation between odd-numbered acid contents in diet and the accumulation of those into body fats were analyzed. Total contents of odd-numbered acids in tissue fat of rats fed on soybean and tuna diet were 0.78 and 0.33% of total acids, respectively. On comparing the amounts of oddnumbered acids intake during feeding period with gain of such acids during the period, it was evident that a large portion of the oddnumbered acid gain during feeding period was not caused by diets.