System and method used for rapidly evaluating freshness of raw meat products

A technology for freshness and fresh meat, applied in measuring devices, material analysis through optical means, instruments, etc., can solve problems such as low detection efficiency, large product damage, and long time required

Inactive Publication Date: 2012-01-18
CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the conventional pork freshness testing methods include sensory testing, physical and chemical testing, and microbial te

Method used

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  • System and method used for rapidly evaluating freshness of raw meat products
  • System and method used for rapidly evaluating freshness of raw meat products
  • System and method used for rapidly evaluating freshness of raw meat products

Examples

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Embodiment 1

[0023] The meat sample of the present embodiment selects the longest muscle of the back of chilled fresh pork. The meat samples come from Dahongmen Meat Food Co., Ltd. After 24 hours of deacidification after slaughter, the samples were cut together with the surrounding connective tissue and fat. Cut the pork evenly into 2.5cm thick meat pieces; wrap the meat samples in fresh-keeping plastic bags and store them in a 4°C freezer for testing; complete the hyperspectral collection of pork samples and the physical and chemical values ​​of freshness indicators within 12 days Determination. During the implementation of this embodiment, the storage environment of the meat samples was kept consistent with the experimental operation environment, that is, the same temperature and humidity were maintained.

[0024] The system for rapidly evaluating the freshness of fresh meat used in the method of the present embodiment is as follows: figure 1 shown. The system consists of a CCD digita...

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Abstract

The invention belongs to the technical field of meat product quality safety testing, and provides a system and a method used for rapidly evaluating the freshness of raw meat products. The system is composed of an imaging spectrometer, a CCD digital camera, a tungsten halogen lamp direct current point light source, a light source stabilizing device, a camera controller, a computer and an image collecting chip. The method provided by the invention comprises steps that: the CCD digital camera, the imaging spectrometer and the camera controller are used for collecting hyper-spectral images of the surfaces of pork; evaluation and grading are carried out according to measured physical and chemical parameters; the hyper-spectral images are analyzed by using mathematical techniques, and a forecasting model used for evaluating pork freshness is established. With the system and the method provided by the invention, rapid and lossless detections can be carried out upon raw meat freshness parameters such as volatile basic nitrogen, pH value and color.

Description

technical field [0001] The invention belongs to the technical field of meat quality and safety detection, and in particular relates to a system and method for quickly evaluating the freshness of fresh meat. Background technique [0002] Fresh meat is the main source of meat food in my country. With the continuous improvement of living standards, the increasing consumption demand, the relative change of dietary structure and the increasing concern for health, people's demand for fresh meat is becoming more and more diversified. The requirements for the quality and safety of meat products are also constantly increasing. Because pork itself is rich in nutrients and moisture, it is easily spoiled, and due to the lack of good hygienic conditions in the process of slaughtering, processing and sales, the freshness of the meat becomes complicated with the change of storage time when it is sold. Meat freshness refers to the freshness of meat, which is a combination of the standard fl...

Claims

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Application Information

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IPC IPC(8): G01N21/84
Inventor 彭彦昆张雷蕾王伟李永玉江发潮陶斐斐单佳佳陈菁菁
Owner CHINA AGRI UNIV
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