158 PHILIPPINE RESINS, GUMS, AND OILS 



(Pangasinan) ; hitong (Bataan) ; bit-tdog (Cagayan, Camiguin, Isabela) ; 

 hittog (Bataan) ; butdlau (Batangas) ; dagkdlun (Isabela) ; dangkdlan (Ba- 

 taan, Tayabas, Camarines, Albay, Mindoro, Masbate, Negros, Capiz, Lanao, 

 Zamboanga, Burias Island, Butuan, Cotabato, Palawan) ; dangkdan (Da- 

 vao) ; palomaria (Mindoro, Tayabas, Bataan, Zambales, Pangasinan, Nueva 

 Ecija, Cagayan, Manila, Cebu, Zamboanga) ; palomaria de la playa (Bataan, 

 Laguna, Camarines, Mindoro, Misamis, Zamboanga, Basilan) ; pamitta4gen 

 (Palaui Island); tambo-tambo (Jolo) ; vutdlau (Batanes). 



BITAOG OIL 



The seeds yield bitaog oil, which is greenish-yellow in color 

 and which in some districts is used as an illuminant. Each tree 

 yields several bushels of nuts per year. According to Richmond 

 and del Rosario * 70 to 75 per cent of this oil can be extracted 

 from the kernels. They say that the oil is called domba and in 

 Indo-English, improperly, laurel-nut oil. Concerning its uses 

 they write : 



* * * The oil is not serviceable as an edible fat, since it contains a 

 poisonous resin to which the color and odor are due. On the other hand, 

 it finds application as a natural remedy in skin diseases and rheumatism, 

 and it is used for that purpose in many districts of India; it is exported in 

 considerable amounts from Travancore, particularly from Burma, and 

 under the name of "udilool" it has been experimentated with in Europe 

 for some time in the treatment of rheumatism. 



The oil is said to be excellent for making soap. 



G. Fenler f investigated the oil obtained from the nuts of 

 Calophyllum inophyllum and states that it is greenish-yellow in 

 color, has a bitter, pungent taste, and is soluble in all proportions 

 in the usual solvents, but is insoluble^in absolute alcohol. An 

 examination of the oil gave the following constants: 



Specific gravity at 1-5' C 0.942 



Reichert-Meissl number 1.3 



Acid value - 28.45 



Saponification value 196 



Iodine value 92.8 



When heated with caustic soda the oil yields a greenish resin 

 of semiliquid consistency, soluble in alcohol. The fatty acids 

 consist largely of palmitic, oleic, and stearic acid. 



Crevost t states that Lefeuvre, by neutralizing the oil of Calo- 

 phyllum inophyllum with caustic potash and separating the soaps 



* Richmond, G. F., and Rosario, M. V. del. Commercial utilization of 

 some Philippine oil-bearing seeds : preliminary paper. Philippine Journal 

 of Science, Section A, Volume 2 (1907), page 444. 



t Chemiker Zeitschrift, Volume 29 (190-5), page 15. 



t Crevost, Ch., Bulletin Economique de I'lndochine, New Series, Volume 

 8 (1906), page 394. 



