| 摘要 |
PURPOSE:To simplify measurement of a carbonyl value by measuring a dielectric constant to determine the carbonyl value. CONSTITUTION:Deterioration in change with lapse of time as a result of use is problem with fats and oils to be measured. Namely, there are animal oils, vegetable oils, fats, fatty materials, mineral oils, etc., the cause for deterioration of which lies mainly in the formation of a carbonyl group. More specifically, such fats and oils are the fats and oils, the main substance in the structure of which is triacyl glycerol. All the fats and oils derived from animals, vegetables and microorganisms are the object of measurement. Mineral oils such as transformer oil and motor oil, the structure of which consists mainly of hydrocarbon, are included as well. On the other hand, general instruments and methods used for measuring dielectric constants in an electrochemical field suffice as the instrument and method for measuring the dielectric constant. Since the carbonyl value of the fats and oils is obtd. by measuring the dielectric constant, the measurement of the carbonyl value is simplified.
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