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Method for rapidly identifying meat with different animal sources

An animal and source technology, applied in the measurement of color/spectral characteristics, etc., can solve the problem of no relevant reports on meat from different animal sources, and achieve the effect of simple identification process and overcoming cumbersome operation.

Inactive Publication Date: 2014-04-30
SHANDONG INST OF COMMERCE & TECH +1
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Problems solved by technology

At present, the qualitative analysis method of near-infrared spectroscopy has been widely used in the identification of tea, tobacco, medicinal materials, oil, honey, etc., but there are no relevant reports on the qualitative analysis of meat from different animal sources

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  • Method for rapidly identifying meat with different animal sources

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Embodiment Construction

[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0020] 1. Acquisition of sample spectral data

[0021] The Nicolet Antaris Ⅱ Fourier transform near-infrared spectrometer from Therm Company of the United States was used as the sampling device, and the spectra of the hind legs of pigs, cattle and sheep were collected by the diffuse reflectance detection system of the integrating sphere. The instrument parameters are as follows: scanning wavenumber range 10000-4000 cm -1 , resolution 8 cm -1 , and the number of scans is 128, taking the built-in background as a reference. Six parallel experiments were carried out for each sample, and the average value was taken as the standard spectrum of the sample. When collecting the spectrum, the sample is placed at the light hole of the sample cell of the spectrometer for scanning, and each scanning light hole is aimed at a different part of t...

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Abstract

The present invention discloses a method for rapidly identifying meat with different animal sources. The method is characterized by comprising: (1) placing a meat sample at a room temperature, and adopting a near-infrared spectrometer diffuse reflection manner to sample a spectrum of the meat sample after the temperature is balanced; (2) selecting spectrum data of the optimal modeling wave band, and carrying out a pre-treatment on the selected spectrum data; (3) adopting a main component analysis method to extract the spectrum feature information; (4) adopting a discrimination analysis method to establish a qualitative recognition model; and (5) calculating the mahalanobis distance of the meat sample, and judging the classification of the meat sample according to the mahalanobis distance value. According to the present invention, the disadvantages of complex operation, long detection time, high chemical reagent consumption and high cost of the existing identification method are overcome; and the method has advantages of rapidness, no loss, accuracy, stability, simple identification process, and no requirement of professionals, and is easy to promote and apply in the food industry and the food law enforcement and supervision department.

Description

technical field [0001] The invention relates to the field of detection of animal meat sources, in particular to a method for rapidly identifying meat from different animal sources. Background technique [0002] Food safety issues are related to the lives and health of the people, to economic development, and even to social stability and national security. In recent years, the quality of meat and its products has not been optimistic. The phenomenon of adulteration and fraud, false ones, and shoddy ones have often occurred, seriously damaging the economic interests and health of consumers, and causing unfair competition. In February 2013, the "horse meat scandal" broke out in Europe. Fake beef was sold to 16 countries. Tests on a food labeled as a beef patty in Iceland have revealed that it does not contain any meat. The reporter randomly selected 8 beef products from farmers' markets, evening food stalls, roadside barbecue restaurants, and lo-mei restaurants in Hangzhou. A...

Claims

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Application Information

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IPC IPC(8): G01N21/25
Inventor 张玉华王国利姜沛宏许丽丹陈东杰谭慧琴孟一
Owner SHANDONG INST OF COMMERCE & TECH
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