1. Department of Biological Functions and Engineering, Kyushu Institute of Technology, Kitakyushu Science and Research Park, Fukuoka 808-0196, Japan
2. Department of Materials Science and Chemical Engineering, Kitakyushu National College of Technology, Fukuoka 802-0985, Japan
3. VTT Technical Research Center of Finland, VTT Biotechnology, FIN-02044 VTT, Finland