30 BULLETIN 1413, IT. S. DEPARTMENT OF AGRICULTURE 
Table 4. — Composition and fuel value of solvent-extracted (defatted) cocoas 
Sample 
Material as received 
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Fuel value data 1 
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No. 
Description 
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106 
Wet, extracted cocoa 
sludge as produced 
P.ct. 
P.ct. 
P.ct. 
P.rf. 
P.rf. 
P. rf. 
P.ct. 
P.tf. 
P.ct. 
Kgm.-cal. 
p. c<. 
at factory 3 
67.71 
0.88 
0.50 
1.84 
0.58 
0.72 
2.66 
2.26 
( 4 ) 
(0 
0) 
101 
Dried material ex- 
tracted in experi- 
mental plant 
7.42 
3.76 
1.56 
5.11 
.98 
1.99 
6.29 
(*) 
(0 
4,382 
65.82 
106- A 
Sample 106 dried in 
laboratory at 100° C. 
5.54 
2.57 
1.47 
5.37 
1.70 
2.11 
7.79 
6.62 
0) 
( 4 ) 
(*) 
107 
Commercial product 
extracted and dried 
at factory, partially 
charred 7 
6.46 
3.35 
2.17 
5.34 
2.11 
2.52 1] 
<*> 
(*) 
4,760 
'54.1 
116 
Commercial product, 
less charred than 
sample 107 
Average, factory- 
6.52 
1.85 
1.13 
5.41 
1.72 
1.88 
7.48 
( 4 ) 
3.20 
0) 
0) 
extracted cocoa 
(3 samples) 8 
6.17 
2.59 
1.59 
5.37 
1.84 
2. 17 8. 97 
96.62 
93.20 
9 4,382 
965.82 
On dry, ether-extract-free basis 
Ether-extract, volatile matter, 
and fuel value on dry, ash-free 
basis l 
Sample 
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Calorific value of 
nonfatty organic 
matter for each 
per cent per kil- 
ogram 2 
No. 
Description 
106 
Wet, extracted cocoa 
sludge as produced at 
factory 3 . 
P.ct. 
( 5 ) 
5.75 
5.84 
5.92 
5.90 
P.rf. 
( 5 ) 
1.10 
1.85 
2.34 
1.88 
P.rf. 
( 5 ) 
2.24 
2.30 
2.79 
2.05 
P.ct. 
( 5 ) 
7.08 
8.48 
12.92 
8.16 
P.ct. 
( 5 ) 
(0 
7.2 
P. cfc 
( 5 ) 
0) 
W 
(<) 
3:~49 
P.rf. 
( 6 ) 
4.36 
( 6 ) 
4.09 
( 6 ) 
P. ft. 
( 6 ) 
76.3 
( 6 ) 
7 66.1 
( 6 ) 
Kgm.-cal. 
(°) 
5, 078 
( 6 ) 
5,813 
( 6 )) 
Kgm.-cal. 
( 6 ) 
101 
106- A 
107 
Dried material extracted 
in experimental plant- 
Sample 106 dried in labo- 
ratory at 100° C 
Commercial product ex- 
tracted and dried at 
factory, partially 
48.9 
( 6 ) 
i 56. 6 
116 
Commercial product, 
less charred than sam- 
ple 107 
( 6 ) 
Average, factory- 
extracted cocoa (3 
samples) 8 
5.89 
2.02 
2.38 
9.85 
9 7.2 
93.49 
94.36 
9 76.3 
9 5,078 
948.9 
1 The determinations of calorific value and volatile matter were made by H. M. Cooper, United States 
Bureau of Mines, on moisture-free samples. In this table his results have been correlated with the 
moisture and ash figures obtained on the original samples by the authors. 
2 The calorific value accepted for the ethyl-ether extract is 93 kgm.-cal. for each per cent per kilogram 
(9,300 Cal. per kilogram). 
3 This sample represents the wet cocoa residue after extraction of fat with benzol by the MacGregor 
process. The analysis was made on the material after drying in the laboratory at a temperature below 
100° C. Only the results on the air-dry basis are included in the averages. 
* Not determined. 
6 Same as for No. 106-A. 
6 Fuel value not determined. 
7 This factory-dried material also is a product of the MacGregor extraction process, but was partially 
charred in the drying. This accounts for the abnormally low volatile-matter content, and the high calo- 
rific value of the nonfatty organic matter, charcoal having a fuel value of about 7,000 Cal. per kilogram. 
8 The data for sample 101 were not included in the averages. 
9 For one sample. 
