Du Mez—The Galenical Oleoresins , 
1025 
Table 31. — Yield of oleoresin as reported in the literature. 
Yield of oleoresin to 
Date 
Observer 
Alco¬ 
hol 
Ace¬ 
tone 
Ether 
Other 
solvents 
Remarks 
1853 
888 
Per ct. 
25.00 
Per ct. 
Per ct. 
Per cent. 
Trimble. 
19.50 
j Benzin 
I 18.15 
1892 
Beringer. 
18.00 
17.32 
21.00 
Yield of oleoresin when pre¬ 
pared by the U. S. P. method. 
Total yield of extract on com¬ 
plete exhaustion of the drug. 
28.00 
25 00 
25.00 
1892 
15.50 
17.40 
18.30 
18.40 
1896 
19.00 
15.81 
16.85 
21.31 
16.19 
Oleoresin from which deposited 
fat had been removed. 
Total ether extract from “Chilli 
Colorado.” 
Total ether extract from Natal 
capsicum. 
Total ether extract from Ne- 
paul capsicum. 
Total ether extract from Zan¬ 
zibar capsicum. 
Capsicum minimum total yield 
toether, sp. gr. 0.717. 
Capsicum annum total yield to 
ether, sp. gr. 0.717. 
Reported as yield of oleoresin. 
The average yield of 8 
samples is given as 18.13 per 
cent. 
1 
i 
1898 
Winton, Ogden & 
Mitchell. 
1903 
Southall Bros. & 
Barclay. 
15.67 
15.34 
1905 
Vanderkleed .... 
J Solvent!?) 
\ 9.40 to 23.90 
1905 
Gerrard. 
fAlco- 
ihol 
1 (90$) 
126.40 
18.20 
j Benzin 
1 18.60 
( Petrol 
■{ Ether 
( 16.40 
i Represents yield of total ex- 
1 tractive matter. 
i Carbon 
i disulphide 
i 16.70 
j Chloroform 
t 17.50 
l 
Total alcoholic extract. Re¬ 
sults obtained in the exam¬ 
ination of 10 samples of cap¬ 
sicum. 
Total alcoholic extract. 
Reported as yield of oleoresin: 
Represents the yield from 3 
samples of capsicum. 
Reported as yield of oleoresin. 
Results obtained in the ex¬ 
traction of 5 samples of cap¬ 
sicum. 
Total benzene extract. 
Reported as yield of ether 
soluble oleoresin. The aver- 
erage yield obtained from 48 
samples of capsicum is given 
as 18.00 per cent. 
Reported as yield of oleoresin. 
Results obtained in extfact- 
ing 7 samples of capsicum. 
1907 
Patch. 
16.20 to 
1908 
26.50 
15.0 to 
1908 
Vanderkleed.... 
25.20 
J Solvent!?) 
( 11.59 to 18.35 
14.34 to 17.95 
j Benzene 
1 14.00to 15.40 
1909 
1910 
Southall Bros. & 
Barclay. 
1910 
Eldred.. 
11.00 to 
1910 
V anderkleed..... 
26.00 
j Solvent!?) 
{ 15.10 to 22.27 
65—S. A. L. 
