1. Chemical Engineering Program, Department of Advanced Science and Engineering, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashihiroshima 739-8527, Japan
2. Tobacco Science Research Center, Japan Tobacco Inc., 6-2 Umegaoka, Aoba-ku, Yokohama 227-8512, Japan
3. Department of Bioresources Technology and Veterinary, Vocational College, Gadjah Mada University, Sekip Unit 1 Catur Tunggal, Depok Sleman, D.I. Yogyakarta 55281, Indonesia
4. Western Region Industrial Research Center, Hiroshima Prefectural Technology Research Institute, 3-13-26 Kagamiyama, Higashihiroshima 739-0046, Japan