1. Department of Process and Food Engineering, Faculty of Engineering, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
2. Department of Chemical Engineering, Faculty of Engineering, University of Nottingham, Malaysia Campus, Semenyih, Selangor, Malaysia
3. Laboratory of Vaccines and Immunotherapeutics, Institute of Bioscience, Universiti Putra Malaysia, Serdang, Selangor, Malaysia