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KMID : 0881720200350010031
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Journal of Food Hygiene and Safety
2020 Volume.35 No. 1 p.31 ~ p.36
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Evaluation of Artificial Radionuclides in Berries
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Kim Ji-Eun
Kim Dae-Hwan
Lee Sung-Nam
Moon Su-Kyoung
Park Yong-Bae
Yoon Mi-Hye
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Abstract
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To ensure food safety of berries from radioactive contamination, radioactivity monitoring was conducted with a total 258 samples of the berries and processed berry products distributed in Gyeonggi-do, South Korea, from 2016 to 2018. The concentration of artificial radionuclides, 134 Cs and 137 Cs, was analyzed using gamma-ray spectrometry. 131 I and 134 Cs were not detected above the MDA (Minimum Detectable Activity) value from any of the samples. However, the range of radioactivity concentration of 137 Cs was 0.69-808.90 Bq/kg in 39 cases of berries. 137 Cs was detected at 0.70-3.29 Bq/kg from 6 cases of domestic berries, which were manufactured from imported raw materials. Among 33 cases of imported berries, 137 Cs was detected at 0.69-808.90 Bq/kg. The concentrations of 137 Cs in 1 case of blueberry powder product (808.90 Bq/kg) and 2 cases of lingonberry powder products (103.93, 188.46 Bq/kg) exceed domestic maximum radioactivity limits, and these were detected in the berries from Poland. These results suggest that monitoring system for imported berries and processed berry products should be continuously intensified to secure food safety.
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KEYWORD
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Radioactivity, Cesium, Berries, Blueberry
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