1026 Wisconsin Academy of Sciences , Arts, and Letters, 
Table 31,— Yield of oleoresin as reported in the literature —Continued. 
Yield of oleoresin to 
Date 
Observer 
Alco¬ 
hol 
Ace¬ 
tone 
Ether 
Other 
solvents 
Remarks 
1911 
Vanderkleed— 
Coutinued. 
Per ct. 
Per ct. 
Per ct. 
Per cent. 
( Solvent (?) 
{ 14.70 
1 17.93 
! Reported as yield of oleo- 
i resin. 
1912 
Johnson and 
16.00 to 
19.00 
J 
Reported as yield of ether ex¬ 
tract. 
j Solvent(?) 
1 14.41 to 16.70 
1912 
Reported as yield of oleoresin. 
Total alcoholic extract. Re¬ 
1913 
Pat,eh. 
19 .66 to 
24.00 
j Solvent (?) 
j 13.10 to 18.10 
f Solvent (?) 
11.00 
sults obtained in extracting 
4 samples of capsicum. 
1913 
Vanderkleed. 
Reported as yield of oleoresin. 
Seven samples of capsicum 
were extracted. 
1 
j 
1913 
Englehardt. 
1 11.30 
{ 13.10 
1 
} Reported as yield of oleoresin. 
| 
1 14.80 
I 15.26 
| 
l 15.80 
Total yield of extract. 
Total yield of extract. 
Reported as yield of oleoresin. 
The average yield from 15 
samples is given as 10.00 per 
cent. 
Reported as yield of oleoresin. 
The average yield of 6 
samples is given as 16.65 per 
cent. 
1914 
Rippetoe. 
i7.02 to 
16.49 to 
1914 
Riedel. 
24.46 
31.90 to 
35.30 
17.88 
1914 
V anderldeed..... 
j Solvent(?) 
( 13.00 to 18.00 
j Solvent(?) 
1 13.85 to 20.84 
1915 
Vanderkleed. 
Table 32— Yield of oleoresin obtained in the laboratory. 
Yield of oleoresin to— 
Date 
Observer 
Alco¬ 
hol 
Ace¬ 
tone 
Ether 
Other 
solvents 
Remarks 
Per ct. 
Per ct. 
Per ct. 
Per cent. 
1910.. 
DuMez & Netzel. 
25.12 
20.25 
18.33 
j Benzine 
116.50.. 
Represents total extract. 
1916.. 
T)n Mez. 
29.90 
22.48 
19.98 
fPetrol. 
J Ether. 
] 18.82.. 
16.40 
17.50 
16.14 
U6.18. 
Represents oleoresin separated 
from deposited fat and other 
extractive matter. 
