P2.9.21 Qualitative and quantitative analysis of apple extracts based on hybrid electronic tongue
- 14th International Meeting on Chemical Sensors - IMCS 2012
2012-05-20 - 2012-05-23
- P2.9 Technology and Application
- A. Kutyla-Olesiuk, M. Wesoly, P. Ciosek - Warsaw University of Technology, Faculty of Chemistry, Department of Microbioanalytics (Poland), M. Nowacka - Warsaw University of Life Sciences, Faculty of Food Sciences, Department of Food Engineering and Process Management (Poland)
- 1761 - 1764
The aim of this paper is to use hybrid electronic tongue in the qualitative and quantitative analysis of extracts obtained from raw and dried apples prepared by different food processing techniques (drying techniques). The system is based on potentiometric and voltammetric sensors, moreover data recorded by spectrophotometry, amperometry and conductometry techniques were applied to enhance the classification ability of the device. The combination of the data from various measurement techniques (hybrid electronic tongue) leads to improved differentiation of the dried apple extracts samples comparing to separate techniques. Appropriate chemometric techniques were used to the recognition and classification of samples, whereas the efficiency of the qualitative and quantitative analysis was evaluated on the basis of RMSE, R2, "a", "b", specificity and selectivity parameters.