134 PHILIPPINE RESINS, GUMS, AND OILS 
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sario. A few of these constants have also been determined by 
Aguilar. These results are recorded in Table 21. Bagilumbang 
oil, like lumbang, has high iodine and saponification values and 
its physical and chemical properties are generally satisfactory. 
However, when the bagilumbang nuts were kept about sixteen 
months, they underwent so great a change in the oil value that 
the yield by expression was reduced from 56 to 40 per cent of 
the weight of the kernel, and the oil was high in acid value and 
much darker in color than that obtained from the fresh nuts. 
Sample. 
TABLE 21.—Constants of bagilumbang oil. 







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Constants. 
1a 2.b 
== : = = = = | 
Specific ae ae ee | 0.9368 |-------__- 
[15!5°'Ci.5 aS ee Lee ee | 22s eee 0. 9362 
Acid value (milligrams of potash per one gram of oil) ______ ----_-____-----_-- |. °2) 150) yess 2 eee 
Acid: value (ec) OL Ni KOH) (eee eee ce Se, a ph, PE ol ee | 5 oe | 2.22 
Saponitication) Values ss = aes ee ee ee | 200.5 191 
Jodine, value: (Hanus) 2225622 ee ee 158.5 166 
Maumene value: --te-25) 8.0) ee ee ee 86:2) «| seen 
Refractive index: (60°'C)) 22522 2e"— 3 ee ee 2 ee eee | 1488) ~|Sss2 sega 
Hehnervalite* 8" pes 55 <= 25 i ee Ss en ee 95.19") | aoe 
Meltinsy pointso.-- 2522-02 eee 2 A ot ES a Aes Ste ee |; 22-40 Cs) Re eee 
Solidttyingepoint=24 95 2 2 82 ee ee eee -6..5:\ Coe eee 

“Richmond, G. F., and Rosario, M. V. del, Commercial utilization of some Philippine » 
oil-bearing seeds: preliminary paper. Philippine Journal of Science, Volume 2 (1907), page 
ce Aguilar, R. H., A comparison of linseed oil and lumbang oils as paint vehicles. Philip- 
pine Journal of Science, Volume 12 (1917), page 235. 
According to Aguilar, the nuts of Alewrites trisperma may be 
crushed and finely ground in an oil mill and the oil extracted 
directly from the crushed nuts. However, he found that thee 
oil thus obtained was dirty, highly contaminated with shell par- 
ticles, dark colored, and had a relatively high acid value. Owing 
to the small amount of labor involved in shelling the nuts, it 
seems desirable to extract the oil from the kernels rather than 
from the whole nuts. It probably would be more profitable to 
cultivate Aleurites trisperma than Aleurites moluccana, as the 
nuts of the former are more easily shelled than those of the 
latter, and, moreover, bagilumbang oil resembles tung oil more 
closely than does lumbang oil. 
However, Aleurites trisperma is not so abundant as Alewrites 
moluccana and consequently the supply of bagilumbang nuts can- 
not be depended upon until planted trees have begun to bear. « 
The attention of manufacturers should, therefore, be directed 
for the present to the production of lumbang oil rather than 
