67 
So far, it is impossible to estimate the yield of seed, but judging 
from the trees in the Museum groun iping, i inly 
g , Taiping, it may certainly be 
expec verage over a thousand seed The fruiting of 
the trees is very irregular, some of t ing much more prolific 
It was found that if the kernels were dried, pounded and at once 
put 1nto a press the resulting oil was clear and of a pale yellow colour. 
elapsed between the pounding of the kernels and the expressing of the 
oil the deeper its colour. The oil was also more difficult to express as 
it became more viscid and required greater pressure to expel it from 
These experiments were carried out with a locally-devised press, 
formed with some planks and a couple of carpenters’ bench screws. 
it has been found that after the seed has been crushed the oil gradu- 
ally undergoes decomposition, owing to the action of a h drolytic 
enzyme contained in the seed.” T 1 
ве 
that the colour of the 
oil changes from a pale yellow, little if any darker than olive oil, to a 
deep brown. 
The difference in the commercial value of the two oils would pro- 
bably be considerable; and it would appear that to obtain the best 
quality and largest yield of oil, the expression should be done locally 
and that as short a time as ible s 
grinding of the kernels and the extraction of the oil in the press. 
Three samples of the above-mentioned oils are on exhibition in the 
Perak Museum. One from freshly-crushed seeds, one from 
crushed about a week, and one from seeds erushed about two weeks. 
The contrast between the pale yellow, brown and dark brown oils is 
very marked. 
L. WRAY. 
F.M.S. Government Press. 
