J90 SOJA, OR SOY BEAN 



In the East Indies the oil extracted from soy is used 

 on a large scale for food purposes. It has a number of 

 other uses as well ; for instance, in China it is used for light- 

 ing purposes, and, as it is a drying oil, may also be used 

 in the manufacture of paint. In Europe, as in Eastern Asia, 

 it enters into the manufacture of soaps, and is also used as 

 machine oil ; recently it has been converted into margarine. 

 The digestibility of this oil has been studied in 1906 by 

 Korentschewski and Zimmermann, the co-efificient of digesti- 

 bility being found almost equal to 95 per cent. 



In 1905 Zimmermann found the properties and composi- 

 tion of this oil to be as follows : — 



Water ... ... ... 03 to l'8 per cent. 



Density at 15° C... ... 0-9264 ,, 0-9287 



Soliditication point ... 14-6 ,, IS'S^C. 



Saponification ... ... 207-9 >> 212-6 



Fatty acids ... ... 93-6 ,, 94-3 



It consists chiefly of glycerines, palmitic and oleic oils. 



The cake, formed from the residue after oil extraction, is 

 a first-cla.ss food for live stock. It is extremelv concentrated, 

 and should therefore be given with care. 



The Asiricultural Gazette of Ne%v South Wales gives an 

 analysis : — • 



Water ... ... ... ... 14-52 per cent. 



Ash ... ... ... ... - 5-16 



Cellulofe ... ... ... 4*03 



Pat ... 8-73 



Non- nitrogenous matter ... ... 25-25 



Nitrogenous matter ... ... 42-31 



lOO'OO 



The nutritive ratio is i to i'o6, whilst the nutritive value 

 is 87-3. 



This cake may also be used as manure, as it is rich in 

 potash, phosphoric acid, and nitrogen. 



Nitrogen ... ... ... 6-77 per cent. 



Potash ... ... ... ... 2 "GO ,, 



Phosphoric acid ... ... ... 1-33 ,, 



The seed of the soy bean is eaten as a vegetable by the 

 majority of the Chinese and Japanese, and they make 



