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Device and method for detecting freshness of beef

A detection device and detection method technology, applied in the direction of testing food, material inspection products, etc., can solve the problems of high cost, time-consuming, expensive equipment, etc., and achieve the effect of fast, accurate detection, and objective detection data

Inactive Publication Date: 2013-12-04
ZHEJIANG GONGSHANG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims to overcome the deficiencies of time-consuming, high cost and expensive equipment in the food evaluation method in the prior art, and provides a beef freshness detection device and detection method that can accurately and quickly detect whether the beef is spoiled

Method used

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  • Device and method for detecting freshness of beef
  • Device and method for detecting freshness of beef
  • Device and method for detecting freshness of beef

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Embodiment Construction

[0055] The present invention will be further described below in conjunction with the drawings and specific embodiments.

[0056] Such as Figure 5 The embodiment shown is a beef freshness detection device, which includes a gas collection device and a gas measurement device; the gas collection device includes a gas collection cavity 1, a sample cavity 2, and an upper communication provided between the gas collection cavity and the upper part of the sample cavity The pipe 3 and the lower connecting pipe 4 between the gas collection chamber and the lower part of the sample chamber; the gas collection chamber is provided with an inlet pipe 5, the inlet pipe is provided with a first solenoid valve 6, and the lower communicating pipe is provided with a second solenoid The valve 7 and the first air pump 8; the sample chamber is provided with a sample tray 16, and the sample tray is provided with a vent 18, and the air outlet of the lower connecting pipe is located below the sample tray; ...

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Abstract

The invention discloses a device and a method for detecting freshness of beef. The method comprises the following steps: firstly, selecting three types of carrier gases for detecting volatile gas generated by freshly-killed beef; secondly, according to the fitting precision of the detection model of each carrier gas, judging the concentration of the volatile gas, wherein when the R value of only one of the three carrier gases is less than 0.9, the concentration of the volatile gas is the most suitable and the detection accuracy can be ensured; thirdly, selecting a beef freshness pre-detection model; fourthly, detecting beef W to be detected by a sensor array; fifthly, obtaining the signal-to-noise ratio maximum SNRW of the beef W; sixthly, computing a storage day value t of the beef W by a computer according to the beef freshness pre-detection model; and finally, judging whether the freshness of a beef sample is unqualified or qualified by a computer. The device and the method have the characteristics of accurate, objective and rapid detection and capability of providing reliable data support for preparing food using beef with qualified freshness.

Description

Technical field [0001] The invention relates to the technical field of meat freshness detection, in particular to a beef freshness detection device and a detection method that can accurately and quickly detect whether the beef is corrupt. Background technique [0002] Beef has the characteristics of rich nutrition and good taste, which is very popular among consumers. [0003] However, beef is easily contaminated and deteriorated. During storage, with the proliferation of microorganisms and a series of physical and chemical changes, the freshness of beef decreases. The rich nutrients such as protein, fat and carbohydrates are used by bacteria and enzymes to produce acid gases such as ammonia, ammonia sulfide, aldehydes, aldehydes, ketones, ethyl mercaptans, alcohols and carboxylic acids. The aldehydes, ketones, esters and other low-molecular compounds in the metabolites make beef produce peculiar smell. [0004] People usually judge the quality of food through the senses, and this...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/12
Inventor 尹芳缘潘靓黄洁杨月周瑶顾佳璐王绿野沈凤姜燕惠国华
Owner ZHEJIANG GONGSHANG UNIVERSITY
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