| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2011: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Research Abstract |
Irradiation of fat containing food generates a family of molecules, namely 2-alkylcyclobutanones (2-ACBs). Absence of 2-ACBs was confirmed in non-irradiated nutmeg and cashew nut using high-resolution gas chromatography-mass spectrometry. 2-ACBs were detected in irradiated soybeans and cashew nut at 1 kGy or greater and identified in the irradiated nutmeg at 5 kGy or greater. Radiation production yields of these 2-ACBs were 1.1 to 3.8 nmole/ mmole precursor fatty acids, same order as animal foods. 2-DCB and 2-dDCB was found in irradiated nutmeg even after 30 weeks of storage.
These results indicate the usefulness of 2-ACBs as maker compound for the identification of irradiation history of food from plant origins.
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