Method for detecting freshness of mangos by aid of electronic nose
A freshness, electronic nose technology, applied in the direction of material resistance, can solve the problems of poor reliability of detection results and slow detection speed, and achieve the effect of fast detection speed and good reliability
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[0024] The present invention will be further described below in conjunction with the drawings.
[0025] Reference figure 1 with figure 2 , A method for detecting mango freshness using an electronic nose, including the following steps:
[0026] (1) Put the mango to be tested into a sealed container and let it stand for 30-60 minutes at room temperature;
[0027] (2) At room temperature, use the sampling needle of the electronic nose to suck the gas in the sealed container, the absorption time is 30-60 seconds, and the gas is detected by the gas sensor array in the electronic nose device; the gas sensor array is composed of sulfide sensors , Hydrogen sensor, ammonia sensor, alcohol, toluene, xylene and other sensors, hydrocarbon gas sensor, methane, propane, butane sensor, propane, butane sensor, nitrogen oxide sensor;
[0028] (3) Collect the data collected by the gas sensor array to detect the characteristic value SNR of the mango to be detected max , Substituted into the mango fre...
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