Nondestructive testing method for freezing storage period of pork based on electronic nose

A non-destructive testing and electronic nose technology, which is applied in the direction of prediction, material electrochemical variables, biological neural network models, etc., to achieve the effect of good correlation, simple and feasible detection technology, and high accuracy

Active Publication Date: 2017-08-29
XIHUA UNIV
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However, the research on the establishment of a non-destructive testing method for p

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  • Nondestructive testing method for freezing storage period of pork based on electronic nose
  • Nondestructive testing method for freezing storage period of pork based on electronic nose
  • Nondestructive testing method for freezing storage period of pork based on electronic nose

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[0032] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0033] Such as figure 1 as shown,

[0034] A non-destructive detection method for pork frozen storage period based on electronic nose, comprising the following steps:

[0035] Step S01: sampling, extracting frozen pork samples;

[0036] Step S02: data collection, using the electronic nose to collect gas from the pork sample;

[0037] Step S03: Establish a predictive model, use principal component analysis, repeated measures analysis of variance based on comprehensive principal component scores, and non-parametric test of independent samples to observe the ability of the electronic nose to distinguish between different frozen storage times and whether it has been refrigerated for a long time before freezing At the same time, the artificia...

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Abstract

The invention discloses a nondestructive testing method for the freezing storage period of pork based on an electronic nose. The nondestructive testing method comprises the following steps: step S01, sampling: extracting a frozen pork sample; step S02, data acquisition: carrying out headspace gas acquisition on the pork sample by using the electronic nose; step S03, establishment of a prediction model: observing the capability of the electronic nose in distinguishing different freezing storage periods and long-time refrigeration before freezing storage by using principal component analysis, variance analysis based on repeated measurement data and nonparametric testing of independent samples, and then establishing the prediction model for determining the freezing storage period of pork and for determining whether pork has undergone long-time refrigeration before freezing storage by using an artificial neural network algorithm; and step S04, result prediction: predicting results according the headspace gas acquisition results of the unknown sample and the prediction model. The nondestructive testing method provided by the invention is applicable to rapid and nondestructive testing of the freezing storage period of frozen pork and testing of whether frozen pork has undergone long-time refrigeration before freezing storage.

Description

technical field [0001] The invention relates to a non-destructive detection method for pork frozen storage period, in particular to an electronic nose-based nondestructive detection method for pork frozen storage period. Background technique [0002] Pork is the most consumed meat in my country, accounting for more than 60% of the meat consumption of urban and rural residents for a long time. Due to the special periodicity of pork production and its important impact on my country's economy, a large amount of pork reserves are needed to deal with emergencies and stabilize meat price fluctuations, etc., making frozen storage pork has become my country's meat reserve, regulating meat prices and meat prices. An important means of import and export trade. Frozen meat can be stored for a long time under strict freezing conditions, but if the storage time is too long or the ambient temperature changes too much during storage and transportation, the quality of frozen meat will deter...

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Application Information

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IPC IPC(8): G01N27/12G01N27/27G06Q10/04G06N3/02
CPCG01N27/12G01N27/27G06N3/02G06Q10/04
Inventor 杨潇陈祥贵王祖文
Owner XIHUA UNIV
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