458 WEST AFRICAN FORESTS AND FORESTRY 
ANALYSIS OF Fat FRoM SIERRA LEONE Komso SEEDS. 
Fat Extracted 
Fat as Sent. from Kernels at 
Imperial Institute. 
Specific gravity ia sn ae on 0°887 0-880 
Acid value... $ ny is sie 33°0 31:4 
Saponification value 8 a oie 231 236 
Todime value .. oe ask Se a 67°6 69°0 
Of the Meliacee there is Carapa Guineensis (C. procera, D.C.); 
which yields the Carapa oil. The nuts are roughly tetrahedral in shape, 
having a rough reddish-brown shell enclosing one large kernel covered 
with a pale-brown papery skin. Good kernels yield about 57 per cent. 
of oil by extraction with solvents and 46°7 per cent. by pressure 
(27 per cent. on cold and 22 per cent. on heating); it is of a pale- 
yellow colour and has a bitter taste. The commercial value of the 
oil was stated in 1907 to be £20 10s. per ton according to the valuations 
made by the Imperial Institute) and from the same authority 
we find the Carapa cake is of a very low manurial value, and 
is only stated to be worth about £2 per ton. Some dark-coloured 
kernels were bought in 1909 at £11 5s. per ton, and light kernels at 
£11 10s. per ton. According to the Imperial Institute the results 
were as follows: 
Cold Pressed Oil. Hot Pressed Oil. 
Specific gravity at 40°C. .. ae ao 0:9179 0:9174 
si 16°C... ae or 0:9272 0:9327 
Saponifcation value or a a 197°1 196-4 
Iodine value .. a ae ae 75°6 71°2 
Reichert-Meissl valio mBey y Aacusde ak 3°5 371 
Unsaponifiable matter a3 28 i 1°5 2-0 
Titer test ais cs — és ae 35°4° C. 36°1° C. 
Carapa CAKE. 
er 
Moisture ee Ze re .. 9 
Ash a $i ots we pe cb® 
Nitrogen 2 
The ash contained : 
Per cent. 
(calculated on Cake). 
1-91 
Potash, K,0 .. ae an 
Lime, CaO ee ; .. O-18 
Phosphoric anhydride, PO, .. O51 
1 Colonial Report, 88, Oil Seeds, Fats and Waxes, Imperial Institute, 1914. 
