M.A. Sairin, N. Amira, S.A. Aziz, S. Sucipto, F.Z. Rokhani
This paper presents the design of portable wireless halal sensor using impedance spectroscopy technique for sensing lard as adulterant in palm oil. The impedance spectra of lard adulterated in palm oil (0.1%, 0.5%, 1%, 5% and 10%) at the frequency range of 5 - 100 kHz at 45°C by using AD5933 Evaluation Board, a custom-built Interdigitated Electrode (IDE) and a Bluetooth module. The impedance spectra show that the binary mixture of lard and palm oil decreases as frequency increases. It is also found that the impedance spectra decrease as the concentration of lard adulteration in palm oil increase. PCA classification shows that different concentration of lard adulteration can be grouped in different cluster. PLS analysis shows high R2 value, 0.97, indicating reliable prediction of the percentage of lard adulteration in palm oil. © 2019 Institute of Physics Publishing. All rights reserved.
Halal Products Research Institute (HPRI), Universiti Putra Malaysia (UPM), Selangor, Malaysia; Faculty of Engineering, Universiti Putra Malaysia (UPM), Selangor, Malaysia; Department of Agro-industrial Technology, Faculty of Agriculture Technology, Universitas Brawijaya, Malang, Indonesia; Halal Qualified Industry Development (HalQ ID), Universitas Brawijaya, Malang, Indonesia
