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Adulteration detection method for beef on the basis of bio-speckles and inertia moment spectrum analysis

A detection method and a moment of inertia technology, applied in the field of beef adulteration detection, can solve the problems of lack of theoretical support, failure to reflect speckle activity, deviation of results, etc., and achieve the effects of low cost, high sensitivity and high accuracy

Inactive Publication Date: 2018-08-24
HUAZHONG AGRI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the former method only extracts the local information of the sample space, and the result is easily affected by the local differences of the sample (such as the uniformity of the sample, the irregularity of the sample surface, and the abnormal points of the speckle image, etc.), and cannot reflect the overall Speckle activity
However, when calculating the maximum value of all column (row) IM values, the abnormal points in the speckle image will cause deviations in the results, and there is still no effective theoretical support for using the maximum value of IM to represent the biological speckle activity of the sample.

Method used

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  • Adulteration detection method for beef on the basis of bio-speckles and inertia moment spectrum analysis
  • Adulteration detection method for beef on the basis of bio-speckles and inertia moment spectrum analysis
  • Adulteration detection method for beef on the basis of bio-speckles and inertia moment spectrum analysis

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Embodiment 1

[0022] 1 Materials and methods

[0023] 1.1 Sample preparation

[0024] 0.85kg of beef hindquarters and sirloin from different cattle provided by a Wuhan Food Co., Ltd. were pulverized by a mixer and mixed evenly, then wrapped in plastic wrap and stored in an environment of 28±2°C for 2 days until obvious signs of deterioration (such as off-flavors, browning, and slime). Get 1kg of fresh beef hind leg, pulverize and mix evenly with non-fresh meat according to the adulteration gradient of 0%, 1%, 3%, 5-60% (gradient is 5%) and 100% (w / w) to make adulterated fake samples. Except for 2 samples of pure fresh beef, 4 replicates were prepared for each gradient, and a total of 62 adulterated beef samples were obtained, each weighing about 30 g.

[0025] 1.2 Acquisition of speckle image

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Abstract

The invention discloses an adulteration detection method for beef on the basis of bio-speckles and inertia moment spectrum analysis. The method includes the steps of: 1) collecting a bio-speckle imageof a beef sample by means of a He-Ne laser device and a CCD camera; 2) constructing an inertia moment spectrum of the bio-speckle image; 3) establishing a beef adulteration detection model. For the first time, the method employs the bio-speckle for adulteration detection of beef. The detection method is high in accuracy, is low in cost and short in time, is low in requirement on experimental equipment and personnel, and is a quick, simple and sensitive adulteration detection method for beef.

Description

technical field [0001] The invention belongs to the field of food detection and relates to a method for detecting beef adulteration. Background technique [0002] As a high-protein, low-fat and low-cholesterol food, beef is one of the main meat foods in my country. However, unscrupulous traders adulterate beef products driven by economic interests, such as mixing low-value meat such as chicken and pork into beef products. Beef adulteration has seriously endangered the economic interests and health of consumers, and it is difficult to be detected by conventional methods. Therefore, it is very necessary to detect beef adulteration. In recent years, detection methods such as chromatography, protein electrophoresis separation, immunology and DNA technology have been widely used in the detection of meat adulteration. However, although these methods have high detection accuracy, they are expensive, time-consuming, and have high requirements for experimental equipment and experi...

Claims

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Application Information

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IPC IPC(8): G01N1/38G01N21/49
CPCG01N1/38G01N21/49
Inventor 冯耀泽陈伟赵海涛温鹏顾鹏朱乐
Owner HUAZHONG AGRI UNIV
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