COMPOSITION OF NATURAL FATS AND OILS 



221 



centration of A exceeds 67% will it make up an appreciable amount of sim- 

 ple triglyceride. 



Although this rule of "even" distril)uti()ii is not followed with mathe- 

 matical rigidity, Hilditch points out that this generalization fits a vast 



Table 18 



Relation Between Saturated Fatty Acid Content and Fully Saturated 



Triglycerides in a Number of Animal Fats, Compared with Calculated 



Amounts of Saturated Triglycerides Based on Random Distribution" 



" Adapted from T. P. Hilditch, The Chemical Constitution of the Natural Fats, 2nd ed. 

 Wiley, New York, 1947, p. 298. 

 ^ Includes small amounts (<1%) of arachidic acid. 

 ' Includes 4.7% lauric acid. 

 "* Includes 1.4% lauric acid. 



majority of natural fats. However, Hilditch^*' has noted that small con- 

 centrations of simple triglycerides do occur in seed fats, where the total 

 acid, A, is present to the extent of less than 67%. Moreover, Hilditch 



283 T. p. Hilditch, Fortschr. chem. organ. Naturstoffe, 1, 24-52 (1938). 



