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Research and Potential Application of Electronic Nose and Tongue Technology in Food Industry

Mahendar Singh, Jakhar (2009) Research and Potential Application of Electronic Nose and Tongue Technology in Food Industry. Masters thesis, University of Mysore.

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This Dissertation / Report is the outcome of investigation carried out by the creator(s) / author(s) at the department/division of Central Food Technological Research Institute (CFTRI), Mysore mentioned below in this page.

Item Type: Thesis (Masters)
Additional Information: Applications of both electronic noses and tongues in food analysis have been examined. Each technique is still being developed but the advantages are already clear. Strengths of the electronic nose include high sensitivity and correlation with data from human sensory panels for several applications (Harper, 2001). An electronic tongue can perform as an 'intelligent sensor to reproduce the taste sense which is a complex, comprehensive sense' (Toko, 1998). It is, therefore, able to transform molecular information into taste qualities. However, there are several problems with the technology. In both devices, sensor drift is a major problem, which leads to the inability to provide proper calibration. This will be of concern in quality control laboratories and is one of the reasons for the general absence of these instruments from these establishments. For the electronic nose, in particular, there is loss of sensitivity in the presence of water vapor and high concentrations of single components (Harper, 2001). Even with the integrated electronic nose–tongue systems, there is the major issue of combining data of different origins (Legin et al., 2002a). For each approach there is also the requirement for considerable method development for each application (Harper, 2001). This was clearly described with alcohol analyses where it was shown that ethanol has a strong effect on both sampling method and detection. Finally, sensor arrays and PR tend to predict the quality of a sample without providing hard Page 6 data with respect to composition and concentration (Krantz-Rulcker et al., 2001). Regardless of these concerns, the future for both the electronic nose and tongue appears to be promising as they can fulfill niche analyses. This is because research and development activities are continuing apace in several laboratories around the world. Even the early instruments have performed well for some applications and it is believed that the newer prototypes will advance the field further.
Uncontrolled Keywords: electronic nose; tongue technology; food analysis; applications
Subjects: 600 Technology > 08 Food technology
600 Technology > 05 Chemical engineering > 06 Appropriate Technology
600 Technology > 08 Food technology > 15 Flavour/Fragrance/Perfumes > 01 Sensory evaluation
Divisions: Sensory Science
Depositing User: Food Sci. & Technol. Information Services
Date Deposited: 21 Jul 2010 04:17
Last Modified: 21 Dec 2016 13:21
URI: http://ir.cftri.res.in/id/eprint/9578

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