Identification method of fake and shoddy meat floss products

Abstract

The invention relates to an identification method of fake and shoddy meat floss products. The identification method is used for identifying adulteration of meat floss via detecting pigments in meat floss, and can be used for detecting artificial pigments, including sunset yellow, lemon yellow, ponceau 4r, and basic orange II in meat floss at the same time. It is determined that whether adulteration of meat floss is performed via detecting whether meat floss contains artificial pigments. According to the identification method, the artificial pigments are easily water soluble, and the solubility in most organic solvents is extremely low, so that fat components are removed firstly, salting out is adopted for coagulation sedimentation of proteins so as to avoid protein influences, solid phase extraction is adopted to avoid polysaccharide and natural pigment influences, and concentration of a sample solution is carried out. The identification method is capable of solving a problem that solid phase extraction recovery rate of basic orange II is low; separation effect is excellent; specificity is high; detection limit and quantitation limit are low enough; linearity range is wide; repeatability is high; and the identification method is accurate and reliable, and can used for daily monitoring and detection.

Description

technical field

[0001] The invention relates to the field of food testing, in particular to a method for identifying fake and inferior dried meat floss products. Background technique

[0002] Meat floss refers to the fluffy and flocculated meat products made of poultry and livestock lean meat as the main raw material through the steps of boiling, cutting, oil skimming, ingredients, soup collection, frying and rubbing. More than 90% of the ingredients in meat floss are composed of water, protein, fat, and polysaccharides, and the protein content is generally between 30% and 60%.

[0003] In recent years, with the increasing demand and usage of meat floss, various fake and inferior meat floss products have also entered the market. Soybean meal after oil extraction contains high protein and polysaccharide content, which is close to that in meat floss. Therefore, soybean protein powder with soybean meal as raw material often appears on the market as meat floss after processing....

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