Method for discriminating true and false yak meat products

Abstract

The invention discloses a method for discriminating true and false yak meat products. The method comprises determining delta <13> C permillage, delta <15> N permillage and delta <2> H permillage of beef samples to be discriminated, substituting the delta <13> C permillage, delta <15> N permillage and delta <2> H permillage into discriminated models of Y <common beef> and Y <yak meat>, calculating the Y <common beef> and Y <yak meat>, wherein Y <common beef>=-3.312 delta <13> C+5.980 delta <15> N-0.631 delta <2> H-79.099 and Y <yak meat>=-5.249 delta <13> C+3.791 delta <15> N-0.640 delta <2> H-110.627, and comparing Y1 and Y2 values, wherein if the Y <common beef> is greater than Y <yak meat>, the beef sample is a common beef sample, and if the Y <common beef> is less than Y <yak meat>, the beef sample is a yak meat product. The method has the characteristics of simple processes, convenience, strong operationality, discrimination rate of 97%, fastness, economy and utility.

Description

technical field [0001] The invention relates to a method for identifying the authenticity of yak meat products. Background technique [0002] Yaks mainly grow in alpine areas with high altitude above 3000m, low air pressure, long cold season, short pasture growth period, long dry grass period, cold and short warm season. 92% of the world's yaks live in China, and 95% of China's yaks live on the Qinghai-Tibet Plateau. Because the Qinghai-Tibet Plateau is surrounded by high mountains, the terrain is closed, and it is located in the border. The growth environment of the grassland is free from any antibiotics and other chemical pollution. It is a rare natural pasture. In addition to foraging for wild grasses, yaks also eat natural medicinal plants such as Cordyceps sinensis and Snow Lotus. . Yak meat has high protein content, low fat content, rich minerals, reasonable proportion of amino acid structure, and rich carotene content. Therefore, yak meat has high nutritional value...

AI Technical Summary

Problems solved by technology

[0004] Another object of the present invention is to provide a method for identifying the authenticity of yak meat products. The method of the present invention utilizes stable carbon, nitrogen, and hydrogen isotope fingerprint analysis to distinguish yak meat products from ordinary beef products, and uses objective detection and analysis methods to quickly Distinguishing the source of beef samples solves the problem of distinguishing between yak meat and ordinary beef products, and ordinary beef products and yak meat products only through sensory perception

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