1. Department of Biological Functions and Engineering, Graduate School of Life Science and Systems Engineering Kyushu Institute of Technology, 2‐4 Hibikino, Wakamatsu‐ku, Kitakyushu Fukuoka 808‐0196 Japan
2. Laboratory of Biopolymer and Derivatives Institute of Tropical Forestry and Forest Products, Universiti Putra Malaysia 43400 UPM Serdang Selangor Malaysia
3. Faculty of Biotechnology and Biomolecular Sciences Universiti Putra Malaysia 43400 UPM Serdang Selangor Malaysia