1. Faculty of Chemical Engineering & Technology, Universiti Malaysia Perlis, Arau, Malaysia
2. Centre of Excellence for Biomass Utilization, Universiti Malaysia Perlis, Arau, Malaysia
3. Centre for Foundation Studies in Science of Universiti Putra Malaysia, Universiti Putra Malaysia, Serdang, Malaysia
4. Institute of Plantation Studies, Universiti Putra Malaysia, Serdang, Malaysia
5. Department of Biological Functions and Engineering, Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, Kitakyushu, Japan