Method for fast detecting low-content mineral oil in edible oil and fat

A detection method and edible oil technology, which are applied in chemical analysis by precipitation, material analysis by observing the influence of chemical indicators, and analysis by making materials undergo chemical reactions, etc., can solve the complicated operation process of saponification. Fluorescence method equipment costs are high, can not meet the supervision and management problems, achieve good application prospects, easy operation, overcome time-consuming and labor-intensive effects
CN1773265AInactive Publication Date: 2006-05-17HENAN UNIVERSITY OF TECHNOLOGY
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
HENAN UNIVERSITY OF TECHNOLOGY
Publication Date
2006-05-17
Estimated Expiration
Not applicable · inactive patent
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Abstract

The present invention relates to a quick detection method of low-content mineral oil in edible oil. Said method includes the following steps: (1), using 0.1-2 ml of oil sample to be detected, adding isometric alkaline solution whose concentration is above 60% in a container, mixing them; (2), then adding ethyl alcohol whose concentration is above 95% and whose added quantity is 20-40 times said mixed solution; (3), placing said container in a hot water bath with 80 deg.C-100 deg.C, heating and shaking; and (4) adding boiling water and visually inspecting, if said solution produce cloudy phenomenon, it can judge that in the edible oil the mineral oil is contained.
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Description

technical field

[0001] The invention relates to a detection method for the content of oils and fats, in particular to a rapid detection method for low-content mineral oil in edible oils and fats. By using the method, it is possible to quickly identify whether the edible oils and fats contain mineral oil and the content of low-content mineral oil. Background technique

[0002] Quality accidents that edible oils and fats are polluted by industrial gasoline, kerosene, diesel oil and other mineral oils occur from time to time. After investigation, the reasons for the pollution are: the use of No. 6 solvent oil contaminated by mineral oil in the oil processing; the use of edible oil in barrels with residual mineral oil; artificial adulteration and other reasons.

[0003] Mineral oil mainly refers to paraffin, liquid paraffin, white oil and other oily substances extracted from petroleum. Consuming edible oil contaminated by mineral oil will cause harm to human health. Medical inf...

Claims

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