soyabean oil

Soybean oil is a vegetable oil extracted from the seeds of the soybean. It is one of the most widely consumed cooking oils and the second most consumed vegetable oil. As a drying oil, processed soybean oil is also used as a base for printing inks and oil paints.

Soybean oil contains only trace amounts of fatty carboxylic acids (about 0.3% by mass in the crude oil, 0.03% in the refined oil).^[7] Instead it contains esters. In the following content, the expressions “fatty acids” and “acid” below refer to esters rather than carboxylic acids.