10 



BULLETIN" 687, U. S. DEPARTMENT OF AGRICULTURE. 



European countries, however, this oil is quite extensively used and is 

 an important constitutent of the dietary. According to Lewko- 

 witsch ^ the sunflower is largely grown in southern Russia and the 

 cold-pressed oil is used there for culinary purposes and for margarin 

 manufacture. 



As the production of sunflower seed in this country may be ma- 

 terially increased, and since no tests of the digestibility of this oil 

 were found on record, the experiments here reported were made to 

 determine the digestibility of sunflower-seed oil when eaten as a con- 

 stituent of a uniform diet such as was served during the test periods 

 with the edible fats previously studied. 



The data of the digestion experiments with sunflower-seed oil are 

 included in the following tables : 



Data of digestion experiments with sunflower-seed 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. 597, subject A. J. H.: 



Blancmange containing sunflower-seed oil 



Wheat biscuit 



Grams. 



1,706.0 



266.0 



30.0 



Grams. 

 752.7 

 23.9 

 26.1 



Grams. 



61.2 



28.2 



.2 



Grams. 



245.2 



4.0 



.1 



Grams. 



633.9 



205.6 



3.5 



Grams. 

 13.0 

 4,3 



Fruit 



.1 



Sugar 



















Total food consumed 



2,002.0 

 64.0 



802.7 



89.6 

 22.7 

 66.9 



249.3 



11.9 



237.4 



843. 



22.6 



820.4 



17.4 



Feces 



6.8 







10.6 











Per cent utilized 







74.7 



95.2 



97.3 



60 9 











Experiment No. 598, subject P. K.: 



Blancmange containing sunflower-seed oil 



Wheat biscuit 



2,326.0 

 365.0 

 706.0 

 202.0 



1,026.2 

 32.9 

 613.5 



83.5 



38.7 

 5.7 



334.3 



5.5 

 1.4 



864.3 



282.1 



81.9 



202.0 



17.7 



5.8 



Fruit 



3.5 

















Total food consumed 



3,599.0 

 88.0 



1,672.6 



127.'9 

 24.3 

 103.6 



341.2 



24.0 



317.2 



1, 430. 3 



33.5 



1,396.8 



27.0 



Feces 



6.2 



Amount utilized 





20.8 











Per cent utilized 







81.0 



93.0 



97.7 



77.0 











Experiment No. 599, subject J. C. M.: 



Blancmange containing sunflower-seed oil 



Wheat biscuit 



1,578.0 

 236.0 

 972.0 

 109.0 



696.2 

 21.2 



844.7 



56.6 

 25.0 



7.8 



226.8 

 3.6 

 1.9 



586.4 

 182.4 

 112.7 

 109.0 



12.0 

 3.8 



Fruit 



4.9 



Sugar 







' 1 " ■ 







Total food consumed 



2, 895. 

 61.0 



1,562.1 



89.4 

 17.0 

 72.4 



232.3 



11.7 



220.6 



990.5 



27.2 



963.3 



20.7 





5.1 



Amount utilized 





15.6 











Per cent utilized 







81.0 



95.0 



97.3 



75.4 











Experiment No. 600, subject C. J. W.: 



Blancmange containing sunflower-seed oil 



1,910.0 

 308.0 

 948.0 

 118.0 



842.7 



27.7 



823.8 



68.6 



32.7 



7.6 



274.5 

 4.6 

 1.9 



709.7 

 238.1 

 110.0 

 118.0 



14.5 

 4.9 



Fruit 



4.7 

















Total food consumed 



3, 284. 

 102.0 



1, 694. 2 



108.9 

 31.9 

 77.0 



281.0 



22.8 



258.2 



1, 175. 8 



36.9 



1, 138. 9 



24.1 





10.4 







13.7 











Per cent utilized 







70.7 



91.9 



96.9 



56.8 











Average food consumed per subject per day 



981.7 



477.6 



34.7 



92.0 



370.0 



7.4 



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

 Co.. Limited, 1909, vol. 2, pp. 103-105. 



London : Macmillan and 



