Corn Oil and a Neiv Vieicpoint in Food Values. 143 



There are many different patents for artificial rubber, but 

 none of these can as yet be regarded as really successful sub- 

 stitutes. The white substitutes are made from vegetable oils, 

 usually rape or castor oil combined with chloride of sulphur in 

 such a way as to completely saturate the oil. The chloride of 

 sulphur is usually diluted with benzine. The brown or black 

 substitutes are made by adding sulphur, i. e., by the sulphura- 

 tion of vegetable oil, usually oxidized oil. Adding vaseline 

 and some mineral oil and paraffin wax before sulphurization is 

 sometimes employed. 



As before stated, corn-oil products producing rubber sponges 

 and rubber materials of various kinds the writer has seen on 

 exhibit. P^'or exhibit, I present herewith a sample of rubber 

 substitute made of corn oil, which has been vulcanized. 



University of Kansas, Lawrence. 



CORN OIL AND A NEW POINT OF A^EW IN 

 FOOD VALUES. 



L. E. Sayre. 



AT a former meeting of the Academy (1915) the writer 

 presented a paper on corn oil, in which he endeavored to 

 show the value of this product in making of medicinal prepara- 

 tions, and intimated that its use could be extended in various 

 directions, not least among which was in the form of a dietetic 

 as a salad oil and in salad-oil dressings. Since that time a very 

 large number of experiments have been performed and further 

 study of the subject of corn oil has been made. 



Ever since corn has been used in large quantities for the 

 purpose of the manufacture of starch there has existed a desire 

 to recover the oil from the kernel, which would otherwise be 

 wasted ; and as the average Indian corn contains from 4 to 5 

 percent of oil, the importance was realized by the manufactur- 

 ers of starch, as some of these used as much as from 20 to 

 40,000 bushels of corn per day. It is needless to say that the 

 kernel or germ of the corn contains the oil, as has been before 

 stated, to the amount of about 4 or 5 percent. In order to re- 

 cover this the kernel must be separated, and then a process of 

 hydraulic pressure is used. After the crude oil is recovered, 

 the process of refinement follows. This latter process has be- 

 come very much improved, until to-day we have a product 



