| Foreword | Foreword on Food Irradiation | Mikiro Tada | Factory of Agriculture, Okayama University |  |
| Feature Articles: Food Irradiation | Background and Usefulness of Food Irradiation | Toru Hayashi | National Food Research Institute |  |
| Hygienic Treatment of Foods by Ionizing Radiation | Hitoshi Ito | Takasaki Radiation Chemistry Research Establishment, Japan Atomic Energy Research Institute |  |
| Chemical Effect of Irradiation | Tamikazu Kume | Takasaki Radiation Chemistry Research Establishment, Japan Atomic Energy Research Institute |  |
| Analytical Detection method for Foods Treated by Radiation | Setsuko Todoroki | National Food Research Institute |  |
| Wholesomeness of Irradiated Foods | Masakazu Furuta | Research Institute for Advanced Sciences and Technology, Osaka Prefecture University |  |
| Biological Evaluation of Irradiated Foods | Noriho Tanaka | Hatano Research Institute, Food and Drug Safety Center |  |
| World Trends in the Early Phase of Research and Development for Food Irradiation and Progress in Japan - My Remembrance | Akira Matsuyama | Honorary Scientist of Institute of Physical and Chemical Research |  |
| Review | Application of Supercritical Carbon Dioxide to DNA Concentration Process with Lipase Hydrolysis | Kunio Nagahama | Department of Applied Chemistry, Graduate School of Engineering, Tokyo Metropolitan University |  |
| Original Paper | Effects of Milk based Liquid Coffee Containing Mannooligosaccharides from Coffee Mannan on Defecation and Fecal Microbiota in Healthy Volunteers | Toshio Kumao,
Shigeyoshi Fuji,
Kazuto Ozaki,
Katsuhito Mutoh,
Kenichi Nakamura, Toshiyuki Matsushima | Research and Development, Ajinomoto General Foods Inc. |  |
| Hisakazu Iino | Graduate School, Science for Living System, Showa Womenfs University |
| ArtTaste | Phytoalexin Protects Plants | Takeshi Kuniga | Shizuoka Laboratory of Genetic Resources, National Institute of Fruit Tree Science |  |