Ibrahim, Mohd Firdaus, <p>1. Center of Excellence for Advanced Sensor Technology (CEASTech), Universiti Malaysia Perlis (UniMAP), Taman Muhibbah, Jejawi, 02600, Arau, Perlis, Malaysia.</p><p>2. School of Bioprocess Engineering, Universiti Malaysia Perlis (UniMAP), Kompleks Pusa, Malaysia