In order to detect the odor of shellfish effectively, the application of PEN3 type electronic nose on it is studied in depth. Firstly, the basic characteristic of PEN3 sensor is discussed. Secondly, the river crabs are used as detecting samples to carry out corresponding experiment, the materials and method are given and the volatile constituents of river crab sample, the output signal of river crabs detected by electronic nose and sensory score with time are obtained, results show that the electronic nose is an effective means for detecting the odor of shellfish.
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