Comparative Study of Thermoluminescence Detection Methods for lrradiated Spices
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- KAWAMURA Yoko
- National Institute of Health Sciences
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- KOJIMA Kana
- Showa Women's University
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- SUGITA Takiko
- National Institute of Health Sciences
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- YAMADA Takashi
- National Institute of Health Sciences
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- SAITO Yukio
- National Institute of Health Sciences
Bibliographic Information
- Other Title
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- 熱発光による照射香辛料検知法の比較検討
- ネツ ハッコウ ニ ヨル ショウシャ コウシンリョウ ケンチホウ ノ ヒカク
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Abstract
The thermoluminescence (TL) detection methods for irradiated spices were compared using spice samples obtained on the Japanese market, irradiated at doses of 1, 5, 10 and 30kGy and stored for 1 year before analysis. The TL intensities of irradiated spices were stable for 1 year after irradiation. Measurement with whole samples failed to identify irradiated samples. Minerals were separated from spices in sodium tungstate saturated solution and/or sodium polytungstate solution. The TL intensity of minerals which had undergone irradiation was significantly increased for all samples. However, the ranges of TL intensity of irradiated and unirradiated samples overlapped. Clear discrimination has been obtained between the TL ratios of irradiated and unirradiated spices by using normalized measurement with reirradiation. The detection limit in terms of irradiation dose is 1kGy even in a sample that has been irradiated 1 year prior to analysis. Normalization is the best technique currently available for thermoluminescence analysis to identify irradiated spices.
Journal
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- Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi)
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Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi) 36 (1), 55-61_1, 1995
Japanese Society for Food Hygiene and Safety
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Keywords
Details 詳細情報について
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- CRID
- 1390001204227425920
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- NII Article ID
- 10009284593
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- NII Book ID
- AN00117741
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- ISSN
- 18821006
- 00156426
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- NDL BIB ID
- 3601432
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- Data Source
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- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed