Method for producing refined rapeseed oil, refined rapeseed oil obtained from the production method, acidic emulsified food containing the refined rapeseed oil, and method for reducing aldehydes in rapeseed oil

摘要

PROBLEM TO BE SOLVED: To provide a production method of purified rapeseed oil having good flavor, the method suppressing a decrease in the content of α-tocopherol and reducing the content of trans fatty acids.SOLUTION: A production method of purified rapeseed oil includes a deodorization process of deodorizing rapeseed oil, and the deodorization process includes a contact step of bringing the rapeseed oil into contact with water vapor at a temperature condition of 205-225°C under a degree of vacuum of 300-800 Pa for 53-100 minutes. The amount of the water vapor may be 1.0-5.0 mass% with respect to the rapeseed oil. The deodorization process may be performed in a tray type deodorization device.