1. Benno Laboratory, Innovation Center, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
2. Biofermin Kobe Research Institute, 7-3-4 Ibukidai-Higashimachi, Nishi-ku, Kobe 651-2242, Japan
3. Fujicco Co., Ltd, 6-13-4 Minatojimanakamachi, Chuo-Ku Kobe, Hyogo 650-0046, Japan
4. Research Laboratory, Matsutani Chemical Industry Co., Ltd., 5-3 Kita-Itami, Itami, Hyogo 664-8508, Japan
5. Dairy Science and Technology Institute, Kyodo Milk Industry Co., Ltd., 20-1 Hirai, Hinode-cho, Nishitama-gun, Tokyo 190-0182, Japan
6. Research Laboratory, Toa Pharmaceutical Co., Ltd., 606 Kondo-cho, Tatebayashi-shi, Gunma 374-0042, Japan
7. Yakult Central Institute for Microbiological Research, 1796 Yaho, Kunitachi, Tokyo 186-8650, Japan