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Method for distinguishing water injection of raw material muscles quickly

A technology for identifying methods and raw materials, which is applied in the fields of analyzing materials, material analysis by optical means, measuring devices, etc., can solve the problems of the accuracy of the analysis methods, and achieve the effect of accurate and reliable detection and broad development prospects.

Inactive Publication Date: 2013-03-06
NORTHWEST A & F UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the study of muscle water content, near-infrared technology also has problems such as accuracy due to differences in analysis methods.

Method used

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  • Method for distinguishing water injection of raw material muscles quickly
  • Method for distinguishing water injection of raw material muscles quickly
  • Method for distinguishing water injection of raw material muscles quickly

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] 1. Raw muscle, prepare a sample with 1kg as a unit, the water concentration injected into the water injection meat sample is 1%, 3%, 5%, 8%, 10%, 13%, 15%, 7 concentration levels, each Concentration to do 6 parallel samples.

[0019] 2. Use the MPA Fourier transform near-infrared spectrometer, combined with a 2mm solid fiber optic probe, to collect the diffuse reflectance spectra of raw meat and water-injected meat. The range is 4000~12000cm -1 .

[0020] 3. Preprocess the raw spectral data. The second derivative + 25-point smoothing preprocessing method is used to eliminate the interference of baseline translation, drift and flat background. Remove the overlapping spectral parts, and select the spectra of the characteristic bands for analysis.

[0021] 4. Perform principal component analysis on the characteristic spectrum. The principal component analysis process was completed in SPSS 17.0 software. It is required that the selected principal components can explai...

Embodiment 2

[0024] Embodiment 2 (pork)

[0025] The MPA Fourier transform near-infrared spectrometer, combined with a 2mm solid fiber optic probe, collects the diffuse reflectance spectrum of pork. Spectral range 4000~12000cm -1 , scanning resolution is 8cm -1 , the number of scans is 64 times. The spectral analysis software is the OPUS 5.5 software that comes with the instrument, and the model is built on the statistical software SPSS17.0DPS software.

[0026] 1. Sample preparation and spectral scanning

[0027] The sample preparation is as follows: firstly, the pig muscle was cut into pieces, pretreated, and the sample was prepared in a unit of 1 kg, and finally a total of 139 samples were obtained; secondly, 60 meat samples were selected from the 139 samples as raw meat samples, and the remaining 79 The partial samples are used to prepare water-injected meat samples. The water concentrations injected into the water-injected meat samples are 1%, 3%, 5%, 8%, 10%, 13%, and 15%, and 11...

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Abstract

The invention discloses a method for distinguishing the water injection of raw material muscles quickly. The method comprises the following steps of: A1, scanning the raw material meat and water-injected meat which serve as raw materials by utilizing an infrared spectrometer to obtain spectroscopic data; A2, performing multivariate statistical analysis by applying principal component analysis and combining artificial neural network technology; and A3, establishing three layers of BP neural network models by taking a main component as the input of the artificial neural network and corresponding meat varieties as output, and extracting information further by the artificial neural network to distinguish whether the water is injected into the muscles or not.

Description

technical field [0001] The invention relates to the technical field of meat water injection detection, in particular to a method for quickly distinguishing raw material muscle water injection based on near-infrared spectrum technology and principal component combined with artificial neural network analysis. Background technique [0002] Moisture content has a direct impact on the quality and taste of fresh meat. Moisture content is a quality that directly affects the processing, storage, trade and consumption of livestock and poultry fresh meat. If the moisture content of fresh meat is too high, bacteria and molds will multiply, which is easy to cause Deterioration of meat; dehydration and shrinkage not only make meat lose weight, cause direct economic loss, but also affect the color of meat. Flavor and texture state, and cause fat oxidation. Due to the lack of instruments for quickly detecting moisture, for a long time in my country, law enforcement officers of relevant su...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/35G06N3/02G01N21/3563G01N21/359
Inventor 丁武杨公社寇莉萍杨志敏
Owner NORTHWEST A & F UNIV