DIGESTIBILITY OF SOME BY-PRODUCT OILS. 15 



Data, of digestion experiments with tomato-seed oil in a simple mij>ed diet — Con. 





Weight 

 of food. 



Constituents of foods. 



Experiment, subject, and diet. 



Water. 



Protein. 



Fat. 



Carbo- 

 hydrate. 



Ash. 



Experiment No. 609, subject J. C. M.— Con. 

 Digestibility of entire ration (per cent).. 



Grams. 



Orams. 



Grams. 

 57.4 



Grams. 

 91.4 



97.5 



Grams. 

 95.7 



Grams. 

 88.6 



Estimated digestibility of oil alone (per 



















Experiment No. 610, subject C. J. W.: 



Blancmange containing tomato-seed oil . . 



1,960.0 



469.0 



746.0 



45.0 



1,016.1 



42.2 



648.3 



35.5 

 49.7 

 6.0 



178.2 

 7.0 

 1.5 



644-4 



362.6 



86.5 



45.0 



85.8 

 7.5 



Fruit 



3.7 



















3,220.0 

 103.0 



1,706.6 



91.2 

 32.1 



186.7 

 16.3 



1,138.5 

 45.8 



97.0 





8.8 















59.1 

 64.8 



170.4 

 91.3 



96.6 



1,092.7 

 96.0 



88.2 









90.9 



Estimated digestibility of oil alone (per 





















Average food consumed per subject per day. . 



1,055.6 



572.6 



26.8 



59.1 



366.4 



30.7 



Summary of digestion experiments with tomato-seed oil in a simple mixed diet. 





Subject. 



Digestibility of entire ration. 



Estimated 



digesti- 



Exi)eriment No. 



Protein. 



Pat. 



Carbo- 

 hydrate. 



Ash. 



bility of 

 tomato- 

 seed oil 

 alone. 



608 



P. K 



Per cent. 

 68.3 

 57.4 

 64.8 



Per cent. 

 88-1 

 91.4 

 91.3 



Per cent. 

 98.1 

 95.7 

 96.0 



Per cent. 

 91.6 

 88.6 

 90.9 



Per cent. 

 93.3 



609 



J. CM 



97.5 



610 



C.J. W 



96.6 









Average 



63.5 



90. 3 96.fi 



90.4 



95.8 













In the tests with tomato-seed oil the digestibility of the diet as a 

 whole was found to be 63.5 per cent for protein, 90.3 per cent for fat, 

 and 96.6 per cent for carbohydrate. On an average, the subjects ate 

 27 grams of protein, 59 grams of fat, and 366 grams of carbohydrate, 

 the energy value of which was 2,100 calories. The subjects ate ap- 

 proximately 57 grams of tomato-seed oil daily. In one instance. Ex- 

 periment No. 608, subject P. K., an average of over 67 grams of fat 

 or approximately 65 grams of tomato-seed oil was eaten daily. In all 

 of the tests the subjects reported that they were in normal physical 

 condition and so it may be assumed that tomato-seed oil is fairly well 

 tolerated by the human body. 



DISCUSSION. 



The table beyond summarizes the results of the digestion experi- 

 ments with oils expressed from apricot, cherry, and peach kernels, 

 and from melon, pumpkin and tomato seeds. The figures reported 



