224 



III. CHEMISTRY OF NEUTRAL FATS 



triglyceride arrangement. These are animal depot fats rich in stearic acid, 

 and milk fats. A summary of the saturated fatty acid content of some 

 common animal fats is included in Table 18(p. 221), along with mole per 

 cent of the fully saturated trigh^^erides calculated on the "indiscriminate" 



50 



40 



30 



20 



35 45 



SATURATED ACIDS 



75 



ACIDS 



MOLS.%. 



Fig. 3. Relationship between the mole per cent saturated acids and mole per 

 cent fully saturated triglycerides.'* The solid line represents the mole per cent 

 completely saturated triglycerides in samples of lard subjected to progressive 

 hydrogenation, while the broken line represents the same relationship for fats 

 based on the principle of "even" distribution of the fatty acids. 



basis compared with those actually found. Table 19 (p. 222) gives the 

 same data for the milk fats. 



The correspondence of the body fats with a random arrangement is 

 quite consistent. Of the fats listed in Table 18, 11 had a figure on an aver- 

 age of 1.8% lower than the estimated figure for GS3, while 10 of the fats 

 were shown to have a higher value than calculated for S^, by a mean of 



