Detection Technique on Waste Index of Frying Oil based on Dielectric Constant
Using soybean oil and cottonseed oil as frying oil,with chicken fillet and naan bread for Fried food,through the dielectric constant method of dielectric constant,edible oil quality detector for polar components,and referring to the GB 5009.229-2016 method,through the determination of dielectric constant,polar component and acid price data,the dielectric constant in frying oil and polarity component was determined,and acid price had significant correlation.The results showed that the dielectric constants of soybean oil and cottonseed oil had good linear independence with acid value,R2 was above 0.9,and the method of determining the polar components of frying oil based on the dielectric constant was proved to be feasible;In the frying process of different frying temperatures and different frying foods,the dielectric constants of soybean oil and cottonseed oil had good linear independence with polar components,and R2 was above 0.9,which proved the feasibility of the method based on dielectric constants to determine acid value of frying oil.
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