Virgin olive oil control fingerprint spectrum and construction method and application thereof

Abstract

The invention provides a virgin olive oil control fingerprint spectrum and a construction method and application thereof, and belongs to the technical field of detection. A series of extra virgin olive oils are analyzed by using ultra-high performance liquid chromatography-fluorescence detection, thereby obtaining chromatographic information of various components in the extra virgin olive oils, breaking through the limitations of constructing a fingerprint spectrum by a traditionally used GC-MS method and based on the fatty acid composition of edible oil, and further solving the problem that for a traditional fingerprint spectrum, only a single component is used for discrimination and causes false positive. At the same time, similarity calculation is performed on the chromatographic information of the series of extra virgin olive oils, and the virgin olive oil control fingerprint spectrum is established, thereby strengthening the polymorphism of the fingerprint spectrum information, reflecting differences from the edible oil from multiple perspectives of the substance composition, distribution, and content of virgin olive oil, being conducive to improving the accuracy of identification, and being capable of conveniently, quickly and accurately identifying the quality of the virgin olive oil.

Description

technical field [0001] The invention relates to the technical field of detection, in particular to a comparison fingerprint of virgin olive oil and its construction method and application. Background technique [0002] Olive oil refers to the oil obtained from fresh olive fruit (not including the oil obtained by solvent extraction or heavy esterification), and is not mixed with other types of oil. Virgin olive oil has the highest quality and nutritional value. It is rich in unsaturated fatty acids, squalene, polyphenols, vitamins and other natural active substances. It has anti-oxidation, cholesterol regulation, cancer prevention, beauty and other effects. The price is lower than other foods. Vegetable oil is much higher. Because olive oil is favored by people for its unique physical and chemical properties and excellent nutritional and health benefits, some businessmen are driven by economic interests, and the problem of olive oil adulteration has always been serious. At ...

AI Technical Summary

Problems solved by technology

However, some studies have shown that the fatty acid composition of some vegetable oils is relatively similar, so there is a certain risk in identifying and identifying these oils with similar fatty acid composition through fatty acid fingerprints, and the types and amounts of adulteration are also relatively large, so only Possibility of Misjudgment Using Fatty Acid Fingerprints to Identify Adulterated Oils

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