1. Halal Products Research Institute, Putra Infoport, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
2. Nanotechnology & Catalysis Research Centre, Institute of Post Graduate Studies, Universiti Malaya, Kuala Lumpur, Malaysia
3. Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia