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Method of using electronic nose for detecting freshness of tilapia

A technology for tilapia and freshness, applied in measuring devices, material analysis through electromagnetic means, instruments, etc., can solve problems such as time-consuming, high cost, and cumbersome processes

Inactive Publication Date: 2013-01-16
ZHEJIANG GONGSHANG UNIVERSITY
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Problems solved by technology

[0005] In order to overcome the deficiencies of the existing tilapia freshness method such as cumbersome process, high cost, long time consumption, and sensor baseline drift, the present invention provides a simple, fast and effective method for detecting the freshness of tilapia using an electronic nose. method

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  • Method of using electronic nose for detecting freshness of tilapia
  • Method of using electronic nose for detecting freshness of tilapia
  • Method of using electronic nose for detecting freshness of tilapia

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Embodiment Construction

[0054] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0055] refer to figure 1 , a method for detecting the freshness of tilapia using an electronic nose. The electronic nose system mainly includes three parts: data acquisition, conditioning and transmission unit, sensor array and air chamber, and air supply power device, and is equipped with activated carbon air filter. The core device of the data acquisition, conditioning and transmission unit adopts an embedded microcontroller, which can realize functions such as sensor array signal acquisition and transmission, and pump valve opening control. The gas supply power unit includes gas sampling pump, cleaning pump, solenoid valve and other components. When the electronic nose test system is tested, the air chamber cleaning pump sends the pure air generated by the filter into the sensor air chamber to calibrate the sensor. Then, driven by the gas...

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Abstract

A method of using an electronic nose for detecting freshness of tilapia includes the steps: (1) respectively placing back and belly samples of tilapia to be detected into a sample container, and standing for 20-40min at the room temperature; (2) inserting a sample injection pinhead of the electronic nose into the sample container at the normal temperature, inserting an air filter filled with activated carbon into the sample container to balance air pressure, starting the electronic nose, and enabling the electronic nose to suck gas given out by the standing samples inside; (3) detecting the gas given out by the samples by the aid of a gas sensor array inside an electronic nose gas chamber, wherein detecting time is 40-60s, and cleaning time is 3-8min; (4) setting an experimental period interval as 10-12 hours; and (5) collecting data acquired by the gas sensor array, performing data processing for the acquired data, and computing so that a freshness value of the tilapia is obtained. The method is simple, convenient, rapid and effective.

Description

technical field [0001] The invention relates to the field of detection of fish freshness, and more specifically relates to a method for detecting the freshness of tilapia based on a gas sensor array using an electronic nose. Background technique [0002] Tilapia is a small and medium-sized fish, commonly known as African crucian carp. Its meat is tender and delicious, and it is widely loved by the public, and it is a delicacy on the table. Tilapia is rich in protein and a variety of unsaturated fatty acids. The Japanese call it "a protein source that does not require protein." It will be one of the main sources of animal protein in the future. Tilapia has fast reproduction, strong disease resistance, rapid growth, low cost, and high yield. It is a good way for farmers to become well-off and rich, and has become the main farmed fish in the world. [0003] Freshness is an important indicator for judging the quality of fish or fish products, which directly affects the final q...

Claims

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Application Information

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IPC IPC(8): G01N27/00
Inventor 惠国华尹芳缘曾小燕童春霞王盈盈
Owner ZHEJIANG GONGSHANG UNIVERSITY
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