1. Department of Chemical and Environmental Engineering, Faculty of Engineering; University of Nottingham Malaysia Campus; Jalan Broga, 43500 Semenyih, Selangor, Malaysia
2. Radiation Processing Technology Division; Malaysian Nuclear Agency; Bangi Kajang 43000 Malaysia
3. Institute of Tropical Forestry & Forest Products (INTROP); Universiti Putra Malaysia; Serdang Selangor 43400 Malaysia
4. Department of Chemical and Environmental Engineering, Faculty of Engineering; Taylors University; Subang Jaya Malaysia
5. Department of Mechanical Engineering, Faculty of Engineering; University of Malaya; Lembah Pantai, Kuala Lumpur 50603 Malaysia