Three companies, Monsanto Company, DuPont / Bunge, and Asoyia in 2004 introduced low linolenic Roundup Ready soybeans. Hydrogenation may be used to reduce the unsaturation in linolenic acid. The resulting oil is called hydrogenated soybean oil. If the hydrogenation is only partially complete, the oil may contain small amounts of trans fat.
How is soybean oil made?
Shijing, the Book of Odes, contains several poems mentioning soybeans. To produce soybean oil, the soybeans are cracked, adjusted for moisture content, heated to between 60 and 88 °C (140 and 190 °F), rolled into flakes, and solvent-extracted with hexanes. The oil is then refined, blended for different applications, and sometimes hydrogenated.
Where is soybean oil traded?
Soybean oil is traded at the Chicago Board of Trade in contracts of 60,000 pounds at a time. Prices are listed in cents and thousandths of a cent per pound, with a minimum fluctuation of 5/1000 cents. It has been traded there since 1951.
How to dehull soybean Hull after cracking?
In addition, in the large-scale edible oil production, the removal of more than 80% of bean hull can greatly improve the processing capacity of the equipment, so it is necessary to use the aspirator for dehulling after cracking. The soybean hull content is 6%-8%, and the oil content in the soybean hull is generally less than 1%.