Tracing geographical origin of Asian rice by using stable isotope and trace element analysis
| Project/Area Number |
16K16302
|
|---|
| Research Category |
Grant-in-Aid for Young Scientists (B)
|
| Allocation Type | Multi-year Fund |
|---|
| Research Field |
Eating habits
|
|---|
| Research Institution | National Agriculture and Food Research Organization |
|---|
Principal Investigator |
SUZUKI Yaeko 国立研究開発法人農業・食品産業技術総合研究機構, 食品研究部門, 主任研究員 (00515059)
|
|---|
| Project Period (FY) |
2016-04-01 – 2019-03-31
|
| Project Status |
Completed (Fiscal Year 2018)
|
| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
|
|---|
| Keywords | 米 / トレーサビリティ / 安定同位体比 / 微量元素組成 / コメ / 産地判別 |
|---|
| Outline of Final Research Achievements |
To establish discriminating model of Asian rice samples, we collected 358 authentic rice samples from 13 countries by FAO/IAEA Technical Co-operation Projects (RAS 5062 and RAS5081) . We determined their stable isotopic compositions (carbon, nitrogen sulfur, oxygen and strontium) and 18 element compositions (B, Mg, Al, K, Ca, Mn, Fe, Co, Ni, Cu, Zn, As, Rb, Sr, Mo, Cd, Ba and Pb). There were differences in carbon, oxygen and sulfur isotope ratios among Asian countries. There is overlap in the distribution of carbon and oxygen isotope ratios between rice from China and Japan. Strontium isotope ratios of Japanese rice are relatively lower than those of Chinese rice. Moreover, by combining the stable isotope ratios and elements, the classifications of the geographical origin of Asian rice samples are improved. These results suggested that stable isotope and trace element analyses are useful tool to discriminate the geographical origin of Asian rice samples.
|
| Academic Significance and Societal Importance of the Research Achievements |
米はアジアの食文化において重要な農作物の一つであり、各国に守りたいブランド米が存在するため、科学的根拠に基づくアジアの米のトレーサビリティシステムの開発が大きな課題となっている。本研究では、アジア太平洋地域プロジェクトにおいて収集した米について、生育環境を反映する安定同位体比および無機元素組成を分析した結果、アジア各国の米の産地判別の可能性が示唆された。本研究のデータは，プロジェクトに参加しているアジア太平洋地域の国々と共有されており，今後アジア地域の米の信頼性確保への貢献が期待される。
|
Report
(4 results)
Research Products
(10 results)
