PSE-like chicken judging method based on near infrared spectroscopy

A technology of near-infrared spectroscopy and determination method, which is applied in the field of food testing, and can solve the problems of destroying the sensory characteristics of chicken breast meat and large errors in manual identification of PSE-like chicken breast meat.

Inactive Publication Date: 2017-06-09
NANJING AGRICULTURAL UNIVERSITY
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Problems solved by technology

[0005] In order to solve the large manual discrimination error and pH-L of PSE-like chicken breast * Defect problem that the determination method destroys the...

Method used

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  • PSE-like chicken judging method based on near infrared spectroscopy
  • PSE-like chicken judging method based on near infrared spectroscopy

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Embodiment 1

[0024] The determination method of PSE-like chicken based on near-infrared spectroscopy technology, the specific method is as follows:

[0025] Material: chilled fresh chicken breast, Jiangsu Yike Food Co., Ltd.

[0026] Judgment of PSE-like meat: According to the corresponding judgment standard, the pH value of chicken breast meat 24 hours after slaughter was measured, and according to the standard of pH<5.7 24 hours after slaughter, the measured chicken breast meat was divided into PSE-like meat and normal meat.

[0027] Spectrum acquisition: Thermo Fisher Antaris near-infrared spectrometer, sampling scanning range: 4000~12000cm-1, resolution: 16cm-1, scanning times: 32 times, sampling module: integrating sphere, sampling mode: diffuse reflection.

[0028] Data processing and model building: First, the Savitzky-Golay smoothing method is used, and then the multi-far scattering correction method (MSC) is used to preprocess the collected spectral data; according to the ratio o...

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Abstract

The invention discloses a PSE-like chicken judging method based on near infrared spectroscopy in the technical field of food detection. The method comprises the following steps: collecting the near infrared spectrum of a chicken sample, and measuring the pH value after 24h since slaughter; preprocessing spectral data to obtain a target matrix, and dividing the matrix into a calibration set and a prediction set; and establishing a prediction model on the basis of the samples in the calibration set and corresponding spectral data and the measured pH value after 24h since slaughter, and evaluating the prediction accuracy of the model. The method disclosed by the invention is simple and easy and quick in operation; and without special pretreatment on the sample, the method is widely applicable to the chilled products sold on the market as well as the forefront of industrial production.

Description

technical field [0001] The invention belongs to the technical field of food detection and relates to a method for judging PSE-like chicken based on near-infrared spectroscopy. Background technique [0002] Chicken is an important source of meat for Chinese residents. my country has become the second largest broiler slaughtering and processing country in the world. Along with the rapid development of the broiler slaughtering and processing industry, a series of problems of chicken quality decline have also emerged. Among them, the PSE-like (pale, soft, exudative) chicken breast problem is one of the more serious quality problems. PSE-like chicken breasts are characterized by pale color, soft texture, and severe juice oozing. Compared with normal meat, the pale meat color leads to lower consumers' desire to buy; as an industrial raw material, serious juice loss leads to lower product yields, causing serious economic losses to poultry meat processing and production enterpris...

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Application Information

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IPC IPC(8): G01N21/359G01N21/3563
CPCG01N21/359G01N21/3563
Inventor 徐幸莲陈宏强王虎虎
Owner NANJING AGRICULTURAL UNIVERSITY
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