A method and device for non-destructive and real-time evaluation of food expiration date

A technology of expiration date and food, which is applied in the field of food quality and safety technology testing, can solve problems such as sample damage, and achieve the effects of ensuring quality of life, health and safety, food quality and safety, and promoting development

Active Publication Date: 2016-08-17
CHINA AGRI UNIV
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  • Application Information

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Problems solved by technology

[0004] The invention provides a method and device for non-destructive real-time evaluation of food expiration date

Method used

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  • A method and device for non-destructive and real-time evaluation of food expiration date
  • A method and device for non-destructive and real-time evaluation of food expiration date
  • A method and device for non-destructive and real-time evaluation of food expiration date

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Example Embodiment

[0056] Example 1:

[0057] Embodiment 1 of the present invention provides a method for non-destructive real-time evaluation of the shelf life of chilled meat. The method of this embodiment is based on the combination of the growth kinetics model established based on predictive microbiology and the key microbial index prediction model established based on optical non-destructive testing methods. The total number of colonies representing the conventional indicators of the number of microorganisms, Pseudomonas representing the specific spoilage microorganism indicators of chilled meat at low temperature, and Escherichia coli and Salmonella representing important pathogenic microorganism indicators in refrigerated and frozen raw meat were selected as key microbial indicators. Qualitative analysis of pathogenic microorganisms, quantitative analysis of quantitative microbial indicators and putrefaction microbial indicators, through the combination of qualitative and quantitative, com...

Example Embodiment

[0089] Example 2:

[0090] Embodiment 2 of the present invention provides a device for assessing the validity period of food in real time without damage, see Figure 11 ,include:

[0091] A growth kinetic model building unit 1101, configured to build a growth kinetic model of microorganisms in the food based on predictive microbiology;

[0092] A predictive model building unit 1102, configured to establish a predictive model of key microbial indicators of the food based on an optical non-destructive testing method;

[0093] The evaluation unit 1103 is configured to use the growth kinetic model and the key microbial indicator prediction model to evaluate the expiration date of the food according to the preset evaluation index of the expiration date of the food.

[0094] Wherein, the growth kinetic model building unit 1101 and the prediction model building unit 1102 are respectively connected with the evaluation unit 1103 .

[0095] Optionally, the growth dynamics model buildin...

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Abstract

The invention provides a method and a device for evaluating the expiry date of food without loss in real time. The method comprises the following steps: based on prediction microbiology, establishing a growth kinetic model of microorganisms in the food; based on an optical nondestructive testing method, establishing a key microorganism index prediction model of the food; evaluating the expiry date of the food by using the growth kinetic model and the key microorganism index prediction model according to the preset expiry date evaluation index of the food. By adopting the method and the device, the expiry date of the food can be understood in time on premise that the food is not damaged, the food quality security is ensured, remarkable economic benefits and good social benefits can be obtained, the living quality and the health security of people are ensured, and the development of the whole food industry is promoted.

Description

technical field [0001] The invention relates to the technical detection field of food quality and safety, in particular to a method and device for non-destructive and real-time evaluation of the validity period of food. Background technique [0002] Domestic food safety problems occur frequently, largely due to serious source pollution of primary agricultural and livestock products and insufficient quality control and safety testing in the production, processing and distribution process. Therefore, it is urgent to comprehensively improve the quality and safety assurance measures of fresh meat. Through the whole-process quality control of food, dynamic supervision can be realized in the whole link from production, processing to wholesale and retail, which can effectively guarantee its reliability, edibility and safety. Among them, the prediction of the validity period of food is a key link in quality control. Chilled meat has broad market prospects and huge economic growth s...

Claims

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Application Information

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IPC IPC(8): G01N33/02G01N21/64G01N21/25
Inventor 彭彦昆张雷蕾陶斐斐赵娟王文秀
Owner CHINA AGRI UNIV
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