DIGESTIBILITY OF SOY-BEAN AND PEANUT FLOURS. 



21 



Data of digestion experiments with flour made from roasted peanuts in a simple mixed 



diet — Continued. 





Weight 

 of foods. 



Constituents of foods. 



Experiments, subjects, and diet. 



Water. 



Protein. 



Fat. 



Carbo- 

 hydrates. 



Ash. 



Experiment No. 636, subject C. J. W.: 



Biscuits contaimng peanut flour 



Fruit 



Grams. 



1, 928. 

 878.0 

 203.0 

 194.0 



Grams. 

 612.1 

 763.0 



Grams. 



300.0 



7.0 



Grams. 



98.7 



1.8 



203.0 



Grams. 

 839. 5 

 101.8 



Grams. 



77.7 

 4.4 













194.0 

















3, 203. 

 63.0 



1,375.1 



307.0 



26.4 



280.6 



303.5 



10.6 



292.9 



1, 135. 3 



18.0 



1,117.3 



82.1 





8.0 







74.1 

















91.4 



96.5 



98.4 



90.3 











Average food consumed per subject per day. 



915.5 



390.2 



81.3 



87.3 



333.6 



23.0 



Summary of digestion experiments with flour made from roasted peanuts in a simple 



mixed diet. 





Subject. 



Digestibility of entire ration. 



Esti- 

 mated 



Experiment No. 



Protein. 



Fat. 



Carbo- 

 hydrates. 



Ash. 



digesti- 

 bility 

 of peanut 

 protein 

 alone. 



618 



P. K 



Per cent. 

 93.7 

 86.5 

 80.2 

 93.5 

 90.9 

 93.4 

 91.4 



Per cent. 

 97.4 

 95.1 

 95.2 

 95.0 

 91.0 

 98.1 

 96.5 



Per cent. 

 99.1 

 98.0 

 97.3 

 98.3 

 98.3 

 98.8 



Per cent. 

 93.6 

 84.4 

 80.7 

 91.5 

 87.2 

 90.9 



Per cent. 

 93.5 



619 



J.C. M 



75.0 



620 



C. J. W 



60.7 



633 



A. A. F 



92.9 



634 



P. K 



86.9 



635 



J. C. M 



92.6 



636 



C.J. W 



98. 4 90. 3 



87.9 











89.9 



95.5 



98. 3 88. 4 



84.2 











On an average the subjects ate 81 grams of protein, 87 grams of fat, 

 and 334 grams of carbohydrate daily, which supplied about 2,445 

 calories. The coefficients of digestibility of these constituents sup- 

 plied by the diet as a whole were found to be 89.9 per cent for pro- 

 tein, 95.5 per cent for fat, and 98.3 per cent for carbohydrate, indi- 

 cating that the diet was quite well utilized. The above value for the 

 digestibility of the total protein of the diet becomes 84.2 per cent 

 for the digestibility of peanut protein alone when correction is ap- 

 plied for the undigested protein occurring in the accessory foods. 

 The diet as a whole supplied 81 grams of protein daily, of which 79 

 grams were derived from the peanut-flour biscuits, and approxi- 

 mately 34 grams were obtained from the peanut flour. No physio- 

 logical disturbances were noted by any of the subjects, indicating 

 that this amount of peanut protein was well tolerated in these 

 experiments. 



In this series of experiments the subjects ate on their biscuits in 

 place of butter peanut oil which was expressed from the blanched 



