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PSL, ESR 및 TL 측정에 의한 복합조미식품의 방사선 조사여부 검지

The Detection of Irradiated Composite Seasoning Foods by Analyzing Photostimulated Luminescence (PSL), Electron Spin Resonance (ESR) and Thermoluminescence (TL)

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참고문헌

주제분류식품과학

초록

미생물적 품질개선이 요구되는 복합조미식품 2종(beef broth 분말, pork bone extract 분말)을 대상으로 0~10 kGy의 감마선을 조사하고 광자극 발광(PSL), 전자스핀공명(ESR) 및 열발광(TL) 측정에 의한 조사여부 검지 가능성을 분석하였다. 조사선량에 따른 PSL photon count를 측정해 본 결과, 비조사 beef broth와 pork bone 분말은 각각 503.0과 429.5의 값을 보여 비조사 시료에서 측정되는 700 이하의 값이 확인되었다. 그러나 1~10 kGy 조사시료에서는 모두 5,000 이상의 photon count가 측정되어 이들 복합조미식품은 PSL 분석에 의해 방사선 조사여부를 신속하게 screening할 수 있었다. 또한 조사시료의 ESR 분석에서는 beef broth와 pork bone 분말에서 signal의 g-value가 2.0065와 2.0067로 각각 측정되었고, 조사선량에 따라 ESR signal intensity가 증가하는 경향으로 beef broth 분말 R2=0.9226, pork bone extract 분말 R2=0.9280의 상관을 보였으나 방사선 유래의 signal은 확인되지 않았다. TL 분석 결과 beef broth 분말의 경우에서만 170℃ 부근에서 방사선 조사 유래의 glow curve가 나타났으며, 재조사에 의한 TL ratio (TL1/TL2)는 비조사군 0.05 이하, 1 kGy 이상 조사군 1.0 이상으로 방사선 조사 여부의 검지가 가능하였다.

Abstract

Two kinds of composite seasoning products (beef broth powder, pork bone extract powder) were used for a detection trial of gamma irradiation treatment up to 10 kGy by analyzing photostimulated luminescence (PSL), electron spin resonance (ESR) and thermoluminescence (TL). PSL results showed that the photon counts of non-irradiated samples were lower than 700, while those of irradiated samples were higher than 5000, which makes it possible to screen irradiated composite seasoning products at 1 kGy or over from the non-irradiated control. ESR signals measured for both irradiated samples were not irradiation-specific, even though they were dose dependent in the signal intensity. Radiation-induced TL glow curves were found in irradiated beef broth powder and furthermore, TL ratio (TL1/TL2) obtained by a re-irradiation step could verify the detection result of TL1 glow curves, showing ratios lower than 0.05 in the non-irradiated sample and higher than 1.00 in irradiated ones.

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방사선조사 건조향신채소의 PSL, TL 및 ESR 검지 특성권중호, 김동호, 김미영, 김병근, 변명우, 이정은, 이주운, 이창복한국식품저장유통학회 · Food Science and Preservation2006 · 제13권 제1호PSL, TL 및 ESR 분석에 의한 건조과일류 및버섯류에 대한 검지 특성 연구강윤정, 김규헌, 김재이, 박순희, 박용춘, 박혜영, 성락선, 손진혁, 엄미옥, 이강봉, 이상재, 이재황, 이화정, 장영미, 조태용, 한상배, 황초롱(사)한국방사선산업학회 · 방사선산업학회지2013 · 제7권 제1호조사선원에 따른 향신료의 PSL과 TL 검지 특성곽지영, 김규헌, 김재이, 김정기, 박용춘, 이상재, 이재황, 이화정, 조태용, 한상배, 황초롱(사)한국방사선산업학회 · 방사선산업학회지2013 · 제7권 제1호PSL과 ESR 분석에 의한 건조수산물의 방사선 조사 여부판별 특성 연구김규헌, 김병근, 김재경, 김재훈, 박종흠, 송범석, 윤영민, 이주운, 정일윤, 최수정, 한인준(사)한국방사선산업학회 · 방사선산업학회지2012 · 제6권 제2호물리적인 방법(PSL, TL, ESR)을 이용한 방사선 조사건조과일의 검지 특성김재경, 김재훈, 박재남, 박종흠, 박진규, 변의백, 송범석, 윤영민, 이주운, 최수정, 한인준(사)한국방사선산업학회 · 방사선산업학회지2014 · 제8권 제1호PSL, TL 및 ESR 분석을 통한 수입산 들깨, 아몬드 및 대두의 방사선 조사 여부 판별 특성김규헌, 김재경, 김재훈, 김정미, 박종흠, 송범석, 윤영민, 윤혜성, 이미희, 이정은, 이주운, 조태용, 최수정, 한상배, 한인준(사)한국방사선산업학회 · 방사선산업학회지2012 · 제6권 제4호

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