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A method for identifying animal origin of livestock and poultry meat

A technology of animal origin and livestock and poultry meat, which is applied in the field of identification of animal origin of livestock and poultry meat, and achieves the effect of fast speed, high practical value, and easy mastery

Active Publication Date: 2021-03-09
JIANGSU INST OF POULTRY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Analyzing food adulteration using amino acid patterns is a brand-new attempt to evaluate food safety. This method is accurate and fast. At present, no relevant reports have been seen in the identification of adulteration in livestock and poultry meat.

Method used

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  • A method for identifying animal origin of livestock and poultry meat
  • A method for identifying animal origin of livestock and poultry meat
  • A method for identifying animal origin of livestock and poultry meat

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Sample pretreatment method

[0054] 1. Fresh samples

[0055] Use commercially available qualified chicken, duck, goose, pig, beef, mutton, etc. as materials, and fully stir until it is like minced meat.

[0056] 2. Basic samples of absolute dry matter

[0057] (1) Use commercially available fresh chicken, duck, goose, pig, beef, mutton, etc. as ingredients, and stir well until it becomes minced meat;

[0058] (2) Dry in an oven at 45°C for 5-6 hours to make an air-dried sample, grind it into powder, and wait for hydrolysis to determine the amino acid content;

[0059] (3) At the same time, take an appropriate amount of powdery air-dried samples and place them in an oven at 105°C±1°C for another 4 hours to calculate the dry matter rate;

[0060] (4) Convert the amino acid content of the air-dried sample to the amino acid content of the absolute dry substance basic sample.

[0061] 3. Sample hydrolysis

[0062] (1) Weigh the sample, weigh 50mg for fresh sample, weig...

Embodiment 2

[0073] Establishment of Amino Acid Patterns in Fresh Muscle Samples of 6 Animals

[0074] 1. Determination of 16 kinds of amino acids in 6 kinds of animals

[0075] The contents of 16 kinds of amino acids are quite different among different animals, and the relative contents and coefficient of variation of the 16 kinds of amino acids are shown in Table 1.

[0076] Table 1 Contents and variation coefficients of 16 kinds of amino acids in muscles of 6 kinds of animals

[0077] Unit: mg / 100g

[0078]

[0079]

[0080] Continued Table 1

[0081]

[0082] 2. Principal component analysis

[0083] Correlation analysis showed that most of the amino acids were moderately or above correlated, indicating that there was information overlap in the selected initial variables, and principal component analysis could be performed. Principal component analysis was performed on 16 kinds of amino acids, and the characteristic rate and contribution rate of each principal component wer...

Embodiment 3

[0103] Establishment of amino acid patterns of 6 kinds of basic samples of animal muscle absolute dry matter

[0104] 1. Determination of 16 kinds of amino acids in 6 kinds of animal muscle absolute dry matter basic samples

[0105] The determination results of 16 kinds of amino acids in the basic samples of muscle dry matter of 6 kinds of animals showed that the contents of 16 kinds of amino acids were quite different among different animals. See Table 7 for details.

[0106] Table 7 Contents and variation coefficients of 16 kinds of amino acids in 6 kinds of animal muscle absolute dry matter basic samples

[0107] Unit: mg / 100g

[0108]

[0109] Continued Table 7

[0110]

[0111]

[0112] 2. Principal component analysis

[0113] Correlation analysis showed that most of the 16 kinds of amino acids were correlated with each other more than moderately, indicating that the selected initial variables had overlapping information, and principal component analysis coul...

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Abstract

The invention discloses a method for identifying animal origin of livestock and poultry meat, which belongs to the field of food quality and safety detection. The amino acid patterns of fresh meat samples and absolute dry matter basic samples of 6 kinds of animal muscles such as , sheep, etc., and the different species are classified by discriminant analysis; the amino acid patterns of different animal muscles in the present invention are significantly different, and can be used to distinguish different species of meat Source, to identify whether meat products are adulterated; this method is fast and simple, and provides a new way for the identification of food adulteration, has certain feasibility and operability, and is easy to popularize and apply.

Description

technical field [0001] The invention belongs to the technical field of food quality and safety detection, and in particular relates to a method for identifying animal origin of livestock and poultry meat. Background technique [0002] With the frequent occurrence of food safety incidents, the safety of livestock and poultry meat and meat products is directly related to the health of the people, which has aroused the high attention of governments and consumers to the safety of meat products. In the meat product market, in order to pursue their own interests, some units and individuals use chicken as pork, pork as beef and mutton, "sell duck meat on the goose's head" and use low-priced and inferior meat as high-priced and high-quality meat, etc. Damaged the interests and health of consumers. The traditional method is to identify the source of meat through the color, taste and texture of meat products. Although it has played a certain role in the identification of counterfeit ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/12
CPCG01N33/12
Inventor 唐修君高玉时樊艳凤贾晓旭葛庆联陆俊贤唐梦君刘龙陈大伟张小燕蒲俊华顾荣王珏
Owner JIANGSU INST OF POULTRY SCI