DIGESTIBILITY OF SOY-BEAN AND PEANUT FLOURS. | ye Ens 
Data of digestion er RraeUs with flour made from roasted peanuts in a simple mixed 
diet—Continued. 
Constituents of foods. 
Experiments, subjects, and diet. ete ee 
f . aT bo- 
Water. Protein. Fat. hydrates. Ash. 
Experiment No. 636, subject C.J..W.:. | Grams. | Grams. | Grams. | Grams. | Grams. | Grams. 
Biscuits containing peanut flour.....-. 1,928.0 612.1 300. 0 98. 7 S3OR ane = leiden: 
DM eV TR a hn ee pe TEL I 878.0 763.0 7.0 1.8 101.8 4.4 
Peanut oll cs ss. eee we seee ses « 2035 OM el ecien mele | ea eects QOSEOH | Psec eee a eer ee 
SuUgaries she ce Sele sas ce Nee ete UAE UES See ae aol ers heres a by a Ares 194.0) teens 
Total food consumed..--.......----- 3,203.0} 1,375.1 307. 0 303.5 | 1,135.3 82. 1 
OCOS Rpts eins same Heccmie mine srecarsit tee GSHON Eee cean crs 4 10.6 18.0 8.0 
ANG O WHA L A Sous canoaoaoodobecaulbeosaudsos Joe eeeeeeee 280. 6 292.9 | 1,117.3 74.1 
IRericentaltilized ees eee eee eee | Eee ete | 91.4 96. 5 98. 4 90. 3 
Average food consumed persubject perday.| 915.5 | 390.2. | 81.3 S723) |mibasane 23.0 
Summary of digestion experiments with flour made from roasted peanuts in a simple 
mixed diet. 
Digestibility of entire ration. Esti- 
: mated 
5 digesti- 
Experiment No. Subject. rss pity 
. arbo- of peanut 
Protein. Fat hydrates Ash. protein 
alone. 
Per cent.| Per cent. | Per cent. | Per cent.| Per cent. 
GL Sasso Es ee Oe At Geet ale 2 ve gape 93.7 97.4 99.1 510 93.5 
CO AS eM i a ue aaa Se CST Gora pa tere ma 86. 5 95.1 98. 0 84. 4 75.0 
4 Das Hs Ao ee dels Cee Wigasns tc tpaee hee 80. 2 95. 2 97.3 80.7 | ° 60. 7 
C0 a i ees Nae apes Ber | EAC AC Hetero tabne initia hay ae es dees 93.5 95.0 98. 3 91.5 92.9 
CF iS anaes ey eth ag elepe ie a Aa Ce eT oe 0 ae cee 90. 9 91.0 98. 3 87. 2 86. 9 
ERY at A MRL RG Nae eka Ae Chard) [eee rt Ree Meee 93. 4 98. 1 98. 8 90. 9 92. 6 
6365. ee ee ee N Le ede CWA es il Ae et OO acl 91.4 96. 5 | 98. 4 90. 3 87.9 
VANVCHA PCRs uk Main Re MRI ONE AL uh o 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 
