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Review
. 2022 Mar;59(3):846-858.
doi: 10.1007/s13197-021-05057-w. Epub 2021 Mar 11.

Electronic nose for detection of food adulteration: a review

Mrinmoy Roy  1 , B K Yadav  1
Affiliations
Review

Electronic nose for detection of food adulteration: a review

Mrinmoy Roy et al. J Food Sci Technol. 2022 Mar.

Abstract

The food products may attract unscrupulous vendors to dilute it with inexpensive alternative food sources to achieve more profit. The risk of high value food adulteration with cheaper substitutes has reached an alarming stage in recent years. Commonly available detection methods for food adulteration are costly, time consuming and requires high degree of technical expertise. However, a rapid and suitable detection method for possible adulterant is being evolved to tackle the aforesaid issues. In recent years, electronic nose (e-nose) system is being evolved for falsification detection of food products with reliable and rapid way. E-nose has the ability to artificially perceive aroma and distinguish them. The use of chemometric analysis together with gas sensor arrays have shown to be a significant procedure for quality monitoring in food. E-nose techniques with numerous provisions are reliable and favourable for food industry in food fraud detection. In the present review, the contributions of gas sensor based e-nose system are discussed extensively with a view to ascertain the adulteration of food products.

Keywords: Adulteration; Aroma; Chemometric analysis; E-nose; Sensor.

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Conflict of interest statement

Conflict of interestThe authors declare that they have no conflict of interest.

Figures

Fig. 1
Fig. 1
Typical block diagram of an e-nose system (1. Synthetic air cylinder, 2. Blower, 3. Air inlet valve, 4. Closed sample container, 5. Sample, 6. Volatiles, 7. Sampling valve, 8. Sensor array chamber, 9. Data processing and pattern recognition, 10. Purge valve, 11. Purge outlet)
Fig. 2
Fig. 2
Correlation between human olfaction with artificial olfaction
See this image and copyright information in PMC

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