14 



BULLETIN 687, U. S. DEPAETMEN-T OF AGEICULTUEE. 



supplied by the rice and tofii, and in the fonner ate 126 grams of fat 

 daily, of which 57 grams was rapeseed oil. Bertarelli^ conducted a 

 series of digestion experiments to determine the relative nutritive 

 value of margarin and butter and included an experiment in which 

 the subject ate an average of 910 grams of white bread, 250 grams of 

 meat, and 61.6 grams of a mixture of olive and colza (or rapeseed) 

 oils. He found the total fat of the diet to be 95.82 per cent digested. 

 The oil used in the experiments here reported was purchased in the 

 open market and was taken to be representative of the edible rape- 

 seed oil of commerce. The following tables contain the data obtained 

 during the test periods with rapeseed oil : 



Data of digestion experiments with rapeseed oil in a simple mixed diet. 





Weight 

 of food. 



Constituents of foods. 



Experiments, subjects, and diet. 



Water. 



Pro- 

 tein. 



Fat. 



Carbohy- 

 drates. 



Ash. 



Experiment No. 629, subject A. F.: 



Blancmange containing rapeseed oil 



Grams. 



2, 380. 

 291.0 

 880.0 

 152.0 



Grams. 



1,575.6 



26.2 



764.7 



Grams. 



90.7 



30.8 



7.0 



Grams. 



262.0 



4.4 



1.8 



Grams. 

 274.9 

 224.9 

 102.1 

 152.0 



Grams. 

 176 8 



Wheat biscuit 



4.7 



Fruit ^ 



4.4 



Sugar 















Total food consumed 



3, 703. 

 59.0 



2, 366. 5 



128. 5 



17.7 



110.8 



268.2 



9.1 



259.1 



753.9 

 26.8 

 727.1 



185 9 





5.4 



Amount utilized 





180.5 











Per cent utilized 



1 



86.2 



96.6 



96.4 97.1 









Experiment No. 630, subject P. K.: 



Blancmange containing rapeseed oil 



2,499.0 

 364.0 

 570.0 

 198.0 



1,654.3 

 32.8 

 495.3 



9.5.2 



38.6 



4.6 



275.2 

 5.4 

 1.1 



288.6 



281.4 



66.1 



198.0 



185.7 



Wheat biscuit 



5.8 



Fruit 



2.9 

















Total food consumed 



3,631.0 

 91.0 



2, 182. 4 



138.4 

 27.3 

 111.1 



281.7 



11.4 



270.3 



834.1 

 46.3 



787.8 



194.4 





6.0 







188.4 

















80.3 



96.0 



94.4 



96.9 











Experiment No. 631, subject J. C. M.: 



Blancmange containing rapeseed oil.. . 



1, 759. 

 291.0 

 971.0 

 152.0 



1, 164. 4 



26.2 



843.8 



67.0 

 30.8 



7.8 



193.7 



4.4 

 1.9 



203.2 

 224.9 

 112.6 

 152.0 



130.7 



Wheat biscuit 



4.7 



Fruit 



4.9 



Sugar 















Total food consumed 



3, 173. 

 69.0 



2,034.4 



105.6 

 19.7 

 85.9 



200.0 



7.3 



192.7 



692.7 

 36.0 

 656.7 



140.3 





6.0 







134.3 











Per cent utilized 







81.3 



96.4 



94.8 



95.7 











Experiment No. 632, subject C. J. W.: 



Blancmange containing rapeseed oil 



2, 290. 

 420.0 

 833.0 

 98.0 



1,516.0 

 37.8 

 723.9 



87.3 



44.5 



6.6 



252.1 

 6.3 

 1.7 



264.5 



324.7 



96.6 



98.0 



170.1 





6 7 



Fruit 



4.2 

















Total food consumed 



3,641.0 

 112.0 



2, 277. 7 



138.4 

 36.4 

 102.0 



260.1 



16.3 



243.8 



783.8 

 51.0 

 732.8 



181.0 





8.3 



Amount utilized 





172.7 











Per cent utilized 







73.7 



93.7 



93.5 



95.4 











Average food consumed per subject per day 



1, 179. 



738.4 



42.6 



84.2 



255.4 



58.4 



iRiv. Ig. e Sanlt. Pub., 9 (1898), No. 15, pp. 570-579. 



