1. Laboratory of Vaccine Materials Center for Vaccine and Adjuvant Research, and Laboratory of Gut Environmental System National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN) Ibaraki‐city Japan
2. Department of Microbiology and Immunology Kobe University Graduate School of Medicine Kobe‐city Japan
3. Nippon Flour Mills Co., Ltd., Innovation Center Atsugi‐city Japan
4. Graduate School of Pharmaceutical Sciences Osaka University Suita‐city Japan
5. Department of Dermatology Kyoto University Graduate School of Medicine Kyoto‐city Japan
6. Department of Pediatrics Maternal & Child Health Center, Aiiku Clinic Tokyo Japan
7. Department of Human Nutrition Tokyo Kasei Gakuin University Tokyo Japan
8. Laboratory of Proteome Research National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN) Ibaraki‐city Japan
9. International Research and Development Center for Mucosal Vaccines The Institute of Medical ScienceThe University of Tokyo Tokyo Japan
10. Division of Gastroenterology Department of Medicine University of California San Diego (UCSD) San Diego CA USA
11. Chiba University (CU)‐UCSD Center for Mucosal Immunology, Allergy and Vaccines (cMAV) UCSD San Diego CA USA
12. Department of Immunology Graduate School of Medicine Chiba University Chiba‐city Japan
13. Laboratory for Metabolomics RIKEN Center for Integrative Medical Sciences Yokohama‐city Japan
14. Division of Physiological Chemistry and Metabolism Graduate School of Pharmaceutical Sciences Keio University Tokyo Japan
15. Graduate School of Medical Life Science Yokohama City University Yokohama‐city Japan
16. Graduate School of Medicine and Graduate School of Dentistry Osaka University Suita‐city Japan