Odor fingerprinting technology with machine olfaction is one of the new methods that has attracted the attention of researchers in the field of food quality inspection, and it includes an array of selective sensors connected to a pattern recognition program. In this research, the design and development stages of the electronic nose system with the ability to connect wirelessly with the computer have been described. ESP32 board was used for this device. ESP32 is a low-cost and low-power microcontroller board of the SoC chip type. This type of chip is a type of integrated circuit that integrates several components of a computer or electronic system into a single chip. The voltage of the sensors is calculated and converted to digital values by the ADS1115 analog-to-digital converter. Finally, in order to test the built device, formalin adulteration was used in milk, and the device showed a good performance in transmitting information. The voltage response of the sensors to the change in the odor pattern in the samples was measured for three groups of milk (pure milk and milk samples adulterated with formalin at volume percentages of 0.1 and 1 g/100 cc) and finally the response of the sensor array for all samples was recorded and stored. The sensor (TGS822) showed the highest loading coefficient in separating samples containing formalin, followed by the sensors (MQ135) and (MQ7) which had a significant effect in separating the samples.
Ghasemi-Varnamkhasti, M. and Izadi, Z. (2025). Design and development of a machine olfaction with the capability of remove information transmission for food industry applications. Iranian Journal of Biosystems Engineering, (), -. doi: 10.22059/ijbse.2025.384914.665573
MLA
Ghasemi-Varnamkhasti, M. , and Izadi, Z. . "Design and development of a machine olfaction with the capability of remove information transmission for food industry applications", Iranian Journal of Biosystems Engineering, , , 2025, -. doi: 10.22059/ijbse.2025.384914.665573
HARVARD
Ghasemi-Varnamkhasti, M., Izadi, Z. (2025). 'Design and development of a machine olfaction with the capability of remove information transmission for food industry applications', Iranian Journal of Biosystems Engineering, (), pp. -. doi: 10.22059/ijbse.2025.384914.665573
CHICAGO
M. Ghasemi-Varnamkhasti and Z. Izadi, "Design and development of a machine olfaction with the capability of remove information transmission for food industry applications," Iranian Journal of Biosystems Engineering, (2025): -, doi: 10.22059/ijbse.2025.384914.665573
VANCOUVER
Ghasemi-Varnamkhasti, M., Izadi, Z. Design and development of a machine olfaction with the capability of remove information transmission for food industry applications. Iranian Journal of Biosystems Engineering, 2025; (): -. doi: 10.22059/ijbse.2025.384914.665573
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