潲水油鉴别方法的研究

Study on the Discrimination of Hogwash Fat

主要研究鉴别潲水油的方法。通过对潲水油和合格食用油的各项理化指标检测,以及钠离子含量和电导率的测定,经分析得出,潲水油的色泽、过氧化值、羰基值均高于合格食用油,低温时潲水油有析出物。检测钠含量和电导率都偏高,而碘值低于食用油。几种检测结果进行综合判断,本方法能应用于潲水油的鉴别。

This article mainly studies on the discrimination of hogwash fat. Determinating the physical-chemical index and natrium content, as well as electroconductivity, the result shows that the colour, the peroxide value and the carbonl value are bigger in hogwash fat than in edible oil, in addition, there are something separate from hogwash oil when low temperature. The natrium content and the electroconductivity of the hogwash oil are both bigger while the value of iodine is smaller. By analyzing the results of the discriminations, this method can be applied in the discrimination of hogwash fat.