Cold Testing
The cold test is carried out to determine whether the oil in animal and vegetable oils forms a precipitate at low temperature. In the cold test, the oil sample is observed after being rapidly cooled from 130 C to 0 C. Interpretation can be made according to the precipitate formed.The clouding that occurs in the oils as a result of the Coldd test, which is not performed on the extracted oils, refers to triacylglycerols (TAG) or wax esters. It is the absence of desired turbidity at the end of the cold test.
It is carried out at the stages of controlling the winterization and stearin removal processes. In general, the cold test process; The oil sample filtered through the filter paper is heated to 130 C and immersed in an ice-water bath and controlled at the 6th and 24th hours.
