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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, long time, expensive equipment, etc., and achieve the effect of fast speed, accurate detection, and objective data of detection

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

[0052] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0053] like Figure 5 The embodiment shown is a beef freshness detection device, including a gas collection device and a gas measurement device; the gas collection device includes a gas collection chamber 1, a sample chamber 2, and an upper connection between the gas collection chamber and the upper part of the sample chamber. Pipe 3 and the lower connecting pipe 4 arranged between the gas collection chamber and the lower part of the sample chamber; the gas collection chamber is provided with an air inlet pipe 5, and the air inlet pipe is provided with a first electromagnetic valve 6, and the upper connection pipe is far away from the gas collection chamber. A second electromagnetic valve 7 and a first air pump 8 are arranged on the top; a sample tray is arranged in the sample chamber, and evenly distributed ventilation holes 18 are arranged on...

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Abstract

The invention discloses a device and a method for detecting freshness of beef. The method comprises the following steps: selecting three carrier gases to detect the volatile gas generated from a newly slaughtered cattle; selecting a predictive model for the beef freshness; detecting the beef to be detected W through a sensor array to obtain maximum signal-to-noise ratio SNRW; calculating storage day numerical value t of the beef W utilizing the predictive model for the beef freshness; judging whether the freshness of the beef W is qualified or disqualified. The invention has the characteristics of quick and high speed detection, good economy, and capability of providing reliable data support for manufacturing 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 beef is spoiled. Background technique [0002] Beef has the characteristics of rich nutrition and good taste, and is deeply loved by consumers. [0003] However, beef is easily contaminated and spoiled. During the storage process, with the proliferation of microorganisms and a series of physical and chemical changes, the freshness of beef will decrease. Rich nutrients such as protein, fat, and carbohydrates are utilized by bacteria and enzymes to produce acid gases such as ammonia, ammonia sulfide, aldehydes, aldehydes, ketones, ethyl mercaptans, alcohols, and carboxylic acids. Aldehydes, ketones, esters and other low-molecular compounds in metabolites cause beef to produce off-flavors. [0004] People usually judge the quality of food through their senses, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/02
Inventor 惠国华尹芳缘童春霞赵梦田曾小燕黄洁杨月周瑶李曼郑海霞周于人李晨迪詹玉丽王敏敏
Owner ZHEJIANG GONGSHANG UNIVERSITY
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