A7.2 - Impedance Investigation of Milk Dilution
- AMA Conferences 2015
2015-05-19 - 2015-05-21
- Proceedings SENSOR 2015
- A7 - Impedance Spectroscopy
- A. Abdelkafi, P. Büschel, A. Fendri, O. Kanoun - Technische Universität Chemnitz (Germany)
- 156 - 159
To ovoid different kind of milk adulteration is it important to control parameters like fat and water content because of their influence on its nutritional value. Therefore it is desired to have a simple way of measuring these values during the processing of milk. In this study, where made that vary water content and temperature to investigate whether or not impedance spectroscopy can be a tool to access milk adulteration. The performance of the sensor is tested for milk adulterated with deionized water in the frequency range 40 Hz to 110 MHz at different temperature between 6° and 40°C; it has been observed that the sensor can identify 5% of water adulteration, at high and medium frequencies. Results indicate that it is possible to discriminate between milk that was diluted with water. It exhibits also; changes in temperature of milk exert a significant effect on changes in its conductance and capacitance properties. Thus impedance can be a tool to construct process monitoring sensor for milk processing.