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The transfer of stable 133Cs from rice to Japanese sake

Paper ID Volume ID Publish Year Pages File Format Full-Text
21033 43203 2012 6 PDF Available
Title
The transfer of stable 133Cs from rice to Japanese sake
Abstract

Possible contamination by radioactive cesium (Cs), released by the Fukushima Daiichi Nuclear Plant Accident in Japan on March 2011, has been a matter of concern with respect to Japanese sake made from rice grains cultivated in affected fields. In this study, the behavior of stable 133Cs, which is a useful analogue for predicting the behavior of radioactive Cs, was investigated in the production of sake using rice grains harvested in Japan in 2010. The concentration of stable 133Cs in the polished rice grains decreased gradually with decreasing milling ratios until a ratio of 70% was reached, and below that point, it did not change significantly. The 133Cs concentration in the 70% polished rice was approximately 20% of that found in brown rice. The sake was brewed on a small scale using 70% polished rice, and the transfer of 133Cs from rice to sake was examined. Approximately 30–40% of 133Cs in the 70% polished rice was removed during the washing and the steeping of the rice grains, and approximately 40% of the 133Cs in the 70% polished rice was transferred to the sake. If the radioactive Cs species behaves similarly, these results suggest that brown rice containing 100 Bq/kg radioactivity of Cs would generate 70% polished rice grains containing 20 Bq/kg and that the sake brewed from these grains would contain 3–5 Bq/kg.

Keywords
Cesium; Rice grain; Sake brewing; Milling; Food processing retention factor
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The transfer of stable 133Cs from rice to Japanese sake
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Bioscience and Bioengineering - Volume 114, Issue 6, December 2012, Pages 600–605
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us