DIGESTIBILITY OF SOME BY-PKODUCT OILS. 



9 



oil, Lewkowitsch reports^ that melon seeds form an article of com- 

 merce on the Slave Coast and Gold Coast of West Africa. In studies 

 of the relative commercial value of unutilized oil-producing seeds 

 and nuts as possible sources of oil, H. S. Bailey, oil specialist of the 

 Bureau of Chemistry, gave some attention to this oil. A sample of 

 cantaloup-seed oil was expressed from cleaned, dried cantaloup seed 

 in a continuous-process-expeller type of oil press under conditions 

 approximating those of the commercial oil mill. The cold-pressed oil 

 which was obtained was of a light-yellow color without characteristic 

 odor or flavor. Since this oil seemed to possess the desirable char- 

 acteristics of a table oil, it was decided to determine its digestibility, 

 and accordingly three tests were made, the results of which are re- 

 ported in the following table : 



Data of digestion experiments with cantaloup-seed oil in a simple mixed diet. 





Weight 

 food. 



Constituents of foods. 



Experiment, subject, and diet. 



Water. 



Protein. 



Fat. 



Carbo- 

 hydrate. 



Ash. 



Experiment No. 891, subject G. S. M.: 



Blancmange containing cantaloup-seed 

 oil 



Grams. 

 1, 057. 



120.0 

 1,153.0 



293.0 



Grams. 



495.8 



10.8 



1,002.0 



Grams. 

 18.6 

 12.7 

 9.2 



Grams. 



124.4 



1.8 



2.3 



Grams. 



409.8 



92.8 



133.7 



293.0 



Grams. 



8.4 



Wheat biscuit 



1.9 



Fruit 



5 8 



Sugar 















Total fnnrl nrinsnTnp.r| 



2,623.0 

 39.0 



1,508.6 



40.5 

 10.3 



128.6 

 2.9 



929.3 

 23.5 



16.1 



Feces 



2 3 









Amount utilized 







30.2 

 74.6 



125.6 



97.7 



100.0 



905.8 

 97.5 



13.8 









85.7 



Estimated digestibility of oil alone (per 

 cent) 





















Experiment No. 892, subject M. L. M.: 

 Blancmange containing cantaloup-seed 

 oil 



862.0 

 231.0 

 932.0 

 150.0 



404.4 

 20.8 

 809.9 



15.2 



24.5 



7.5 



101.4 

 3.5 



1.9 



334.2 

 178.5 

 108.1 

 150.0 



6 8 



Wheat biscuit 



3.7 



Fruit 



4 6 



Sugar 















Total food consiamed 



2, 175. 

 37.0 



1,235.1 



47.2 

 11.6 



106.8 

 5.9 



770.8 

 15.2 



15.1 



Feces 



4 3 









Amount utilized 







35.6 



75.4 



100.9 

 94.5 



97.8 



755.6 

 98.0 



10.8 



Digestibility of entire ration (per cent) . . 







71.5 



Estimated digestibility of oil alone (per 

 cent) 





















Experiment No. 893, subject W. O'C: 



Blancmange containing cantaloup-seed 

 oil 



1,092.0 

 179.0 



1,221.0 

 £28.0 



512.3 



16.1 



1,061.1 



19.2 

 19.0 



9.8 



128.5 

 2.7 

 2.4 



423.4 



138.4 

 141.6 

 528.0 



8.6 



Wheat biscuit 



2.8 



Fruit 



6.1 



Sugar 















Total food consumed 



3, 020. 

 63.0 



1, 589. 5 



48.0 

 16.1 



133.6 

 10.5 



1,231.4 

 30.6 



17.5 



Feces 



5.8 









Amount utilized 







31.9 

 66.5 



123.1 

 92.1 



96.7 

 41.0 



1, 200. 8 

 97.5 



11.7 



Digestibility of entire ration (per cent) . . 







66.9 



Estimated digestibility of oil alone (per 

 cent) 









Average food consumed per subject per day. . 



868.7 



481.5 



15.1 



325.7 



5.4 



1 Chemical Technology and Analysis of Oils,. Fats, and Waxes. 

 1909, vol. 2, p. 127. 



London: Macmillan & Co. (Ltd.), 



