Method for quickly detecting pork freshness based on electronic nose

A detection method and freshness technology, applied in the direction of measuring devices, material analysis through electromagnetic means, instruments, etc., can solve the problems of low sensitivity, poor operability, poor accuracy, etc., and achieve high sensitivity and strong operability , good accuracy

Inactive Publication Date: 2013-12-04
ZHEJIANG GONGSHANG UNIVERSITY
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  • Abstract
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Problems solved by technology

[0003] In order to overcome the shortcomings of poor accuracy, low sensitivity and poor operability of the existing pork freshness detection techno

Method used

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  • Method for quickly detecting pork freshness based on electronic nose
  • Method for quickly detecting pork freshness based on electronic nose
  • Method for quickly detecting pork freshness based on electronic nose

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Embodiment Construction

[0033] The present invention will be further described below in conjunction with the accompanying drawings.

[0034] refer to Figure 1 to Figure 4 , a kind of pork freshness rapid detection method based on electronic nose, described detection method comprises the following steps:

[0035] (1) The sample learning process, select pork samples of different freshness levels, place the pork samples in the cavity, pass the sample gas in the cavity into the air chamber of the electronic nose system, and the sensors in the air chamber get Detecting data, obtaining a recognition model according to a pattern recognition method, inputting the detection input into the recognition model to obtain a feature value, and then obtaining a sequence corresponding to the feature value and the freshness level of the fresh pork;

[0036] (2) Put the pork to be detected in the cavity, and pass the sample gas in the cavity into the air chamber of the electronic nose system. The sensor in the air cha...

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Abstract

A method for quickly detecting pork freshness based on an electronic nose comprises the following steps: (1) a sample learning process is performed, pork samples with different freshness levels are selected and placed in a cavity, smell of the samples in the cavity is transmitted into an air chamber with an electronic nose system, sensors in the air chamber obtain detection freshness data, a recognition model is obtained according to pattern recognition, the detection data is input into the recognition model to obtain characteristic values so as to obtain a corresponding sequence of the characteristic values and the freshness levels of the fresh pork; (2) pork to be detected is placed in the cavity, smell of the samples in the cavity is transmitted into the air chamber with the electronic nose system, the sensors in the air chamber send the detection date to the recognition model to obtain another characteristic value, and based on the corresponding sequence, a freshness level of the pork to be detected can be obtained according to a current characteristic value. The method is excellent in accuracy, higher in sensitivity and strong in operability.

Description

technical field [0001] The invention relates to a method for detecting the freshness of pork. Background technique [0002] Meat is rich in protein and fat, carbohydrates, calcium, phosphorus, iron and other ingredients, and is a good material for nutritional supplements. However, due to the action of microorganisms, meat is easy to deteriorate, and once the deteriorated meat is eaten, it is likely to cause damage to human health. Deteriorated or contaminated meat and meat products contain a large amount of Bacillus cereus, which can easily cause food poisoning after people eat them. The manifestation of this poisoning is mainly acute gastroenteritis, with a high incidence in summer and autumn. The incubation period is generally 12-24 hours, as short as 1 to several hours, and as long as 2-3 days. The main symptoms are nausea, vomiting, diarrhea, abdominal pain, headache, malaise and fever. General fever 38 ℃ -40 ℃. Severe patients may experience chills, convulsions, co...

Claims

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Application Information

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IPC IPC(8): G01N27/00
Inventor 黄洁詹玉丽郑海霞杜桂苏马美娟顾佳璐李晨迪惠国华
Owner ZHEJIANG GONGSHANG UNIVERSITY
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