Abstract

The aim of this study is to show the development of a signals processing system on a single chip, based on PSoC technology, as stage of a portable electronic tongue, with the aim to discriminate samples of some substances according to their taste properties. The system applies a technique called cyclic voltammetry in order to obtain signals from a substance through of an electrochemical sensors array, these signals are processed and transmitted via bluetooth to a Smartphone with Android operating systems, where it is possible to look the behavior of the electrochemical sensors array front the analyzed substances. The cyclic voltammetry was applied to samples of saccharose and milk, using an electrochemical measurement device and the prototype developed; it was possible to check that both devices described the same behavior of the samples. On the other hand, the system was confronted with samples of milk, lactic acid and saccharose, where was possible to note the capability of this system to offer single response in front of different substances, which is a vital result thereof when discriminating a liquid substance according its flavor.

Keywords:

Android, cyclic voltammetry, electrochemical, electronic tongue, PSoC technology, sensor,

References

1. Arrieta, Á.A., M.L. Rodríguez-Mendez and J.A. De Saja, 2010a. Aplicación de una lengua electrónica voltamétrica para la clasificación de vinos y estudio de correlación con la caracterización química y sensorial. Quím. Nova, 33(4):787-793.
   CrossRef    
2. Arrieta, Á.A., M.L. Rodríguez-Méndez, J.A. de Saja, C.A. Blanco and D. Nimubona, 2010b. Prediction of bitterness and alcoholic strength in beer using an electronic tongue. Food Chem., 123(3): 642-646.
   CrossRef    Direct Link
3. Ivarson, P., S. Holmin, N. Höjer, C. Krantz-Rülcker and F. Winquist, 2001. Discrimination of tea by means of a voltammetric electronic tongue and different applied waveforms. Sensor. Actuat. B-Chem., 76(1-3): 449-454.
   
4. Kato, K., A. Negishi, K. Nozaki, I. Tsuda and K. Takano, 2003. PSOC cycle testing method for lithium-ion secondary batteries. J. Power Sources, 117(1-2): 118-123.
   CrossRef    Direct Link
5. Lee, Y.S. and S.B. Cho, 2014. Activity recognition with android phone using mixture-of-experts co-trained with labeled and unlabeled data. Neurocomputing, 126: 106-115.
   CrossRef    Direct Link
6. Lindemann, B., 1996. Taste reception. Physiol. Rev., 76(3): 718-766.
   CrossRef    PMid:8757787    Direct Link
7. López-Ruiz, N., A. Martínez-Olmos, I.M. Pérez de Vargas-Sansalvador, M.D. Fernández-Ramos, M.A. Carvajal, L.F. Capitan-Vallvey and A.J. Palma, 2012. Determination of O2 using colour sensing from image processing with mobile devices. Sensor. Actuat. B-Chem., 171-172: 938-945.
   
8. Lopez-Ruiz, N., V.F. Curto, M.M. Erenas, F. Benito-López, D. Diamond, A.J. Palma and L.F. Capitan-Vallvey, 2014. Smartphone-based simultaneous pH and nitrite colorimetric determination for paper microfluidic devices. Anal. Chem., 86(19): 9554-9562.
   CrossRef    PMid:25158126    Direct Link
9. Ministerio de la Protección Social, 2006. Decreto número 616, Bogotá D.C. Retrieved form: http://www.ica.gov.co/getattachment/15425e0f-81fb-4111-b215-63e61e9e9130/2006D616.aspx.
   Direct Link
10. Parra, V., Á.A. Arrieta, J.A. Fernández-Escudero, M.L. Rodríguez-Méndez and J.A. De Saja, 2006. Electronic tongue based on chemically modified electrodes and voltammetry for the detection of adulterations in wines. Sensor. Actuat. B-Chem., 118(1-2): 448-453.
    
11. Winquist, F., P. Wide and I. Lundström, 1997. An electronic tongue based on voltammetry. Anal. Chim. Acta, 357(1-2): 21-31.
    CrossRef    
12. Woertz, K., C. Tissen, P. Kleinebudde and J. Breitkreutz, 2011. Taste sensing systems (electronic tongues) for pharmaceutical applications. Int. J. Pharm., 417(1-2): 256-271.
    CrossRef    PMid:21094230    Direct Link

Competing interests

The authors have no competing interests.

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