I mar 2 1820 
■ 
THE PHILIPPINE 
Journal of Science 
Vol. XV SEPTEMBER, 1919 No. 3 
THE PHYSICO-CHEMICAL VALORATION OF TIKITIKI 
EXTRACT 1 
By Mariano V. del Rosario and Joaquin Maranon 
Of the University of the Philippines 
For a long time this country has been paying very dearly for 
exotic drugs. At present, however, there is the praiseworthy 
tendency to utilize our own resources in the preparation of the 
medicines used in combating the diseases peculiar to this part 
of the world. 
The extract of tikitiki , 2 although recognized and prescribed for 
a number of years, has not usually been prepared according to 
any definite, standard method. Hence, differences in composi- 
tion are found in the several brands that may be obtained in the 
market; that is, the products show different proportions as to 
their components. Consequently, we believe that our scientific 
authorities should adopt an official method for the preparation 
of this extract that would comply with established physical and 
chemical principles. The compound that we are considering as 
a standard is the one exemplified by the extract prepared by the 
Bureau of Science, Manila, according to the method of Chamber- 
lain and Vedder , 3 which is the one used in this laboratory. 
No definite conclusions leading to the formulation of a standard 
extract of this drug can be drawn from the results obtained in 
1 From the laboratory of pharmaceutical chemistry, School of Pharmacy, 
University of the Philippines. 
2 Tikitiki is the Philippine word meaning rice polishings. 
3 Chamberlain, Weston P., and Vedder, Edward B., The cure of infantile 
beriberi by the administration to the infant of an extract of rice polish- 
ings, and the bearing thereof on the etiology of beriberi, Bull. Manila Med. 
Soc. 4 (1912) 26. 
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