1. School of Chemical Engineering, College of Engineering, Universiti Teknologi MARA, 40450Shah Alam, Malaysia
2. Department of Pharmaceutical Technology, Kulliyyah of Pharmacy, International Islamic University Malaysia, Bandar Indera Mahkota, 25200Kuantan, Pahang, Malaysia
3. Faculty of Chemical & Process Engineering Technology, Universiti Malaysia Pahang, Lebuhraya Tun Razak, 26300Kuantan, Pahang, Malaysia
4. Malaysian Institute of Chemical and Bioengineering Technology, Universiti Kuala Lumpur, Lot 1988, Kawasan Perindustrian Bandar Vendor, Simpang Ampat, 78000Alor Gajah, Malaysia