Korean Journal of Food Science and Technology (한국식품과학회지)

Korean Society of Food Science and Technology (한국식품과학회)
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Analysis of Zearalenone Contamination in Cereal-Based Products Using High Performance Liquid Chromatography-Fluorescence Detector and Ultra Performance Liquid Chromatography-Tandem Mass Spectrometry

곡류가공품 중 제랄레논 오염도 조사

  • 장미란 (부산지방식품의약품안전청 시험분석센터) ;
  • 이창희 (부산지방식품의약품안전청 시험분석센터) ;
  • 최인선 (부산지방식품의약품안전청 시험분석센터) ;
  • 신춘식 (부산지방식품의약품안전청 시험분석센터) ;
  • 김진희 (부산지방식품의약품안전청 시험분석센터) ;
  • 장영미 (부산지방식품의약품안전청 시험분석센터) ;
  • 김동술 (부산지방식품의약품안전청 시험분석센터) ;
  • 안동현 (부경대학교 식품공학과)
  • Received : 2010.01.05
  • Accepted : 2010.12.12
  • Published : 2011.04.30
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Abstract

Zearalenone (ZEA) is an estrogenic mycotoxin mainly produced by Fusarium graminerum, a species which colonizes a wide variety of cereals, including wheat, barley and processed products. A survey of ZEA contamination was conducted on 141 dried confectioneries, 59 breads and rice cakes, 135 noodles and 101 other products, for a total of 432 commercial samples. Samples were analyzed by high performance liquid chromatography with fluorescence detection (HPLC-FLD) after immunoaffinity clean-up and was confirmed by liquid chromatography tandem mass spectrometry (LCMS/MS). The limits of detection and quantification were 2.0 and $6.0{\mu}g/kg$, respectively. The recovery ranged from 80.2% to 98.4% in the cereal based product. ZEA was detected in 38 samples (8.8% incidence), including 3 snack, 2 biscuit and 33 other cereal products. The ZEA contamination levels were in the range of $5.38-53.76{\mu}g/kg$. Finally, LC-MS/MS analysis of the contaminated samples was conducted to confirm the detected ZEA, and all 38 samples showing ZEA by HPLC-FLD were confirmed by LC-MS/MS.

시중 유통 중인 과자류, 빵, 떡류, 면류 및 선식 등 432건을 immunoaffinity column으로 정제하여 HPLC-FLD로 제랄레논에 대한 오염실태를 조사하였다. 제랄레논의 검량선은 결정계수($R^2$)가 0.999 이상으로 양호한 직선성을 보였고 검출한계 및 정량한계는 각각 2.0, $6.0{\mu}g/kg$, 회수율 80.2-98.4%이었으며 RSD가 0.82-6.40%로 양호한 재현성을 나타내었다. 제랄레논 모니터링 결과, 과자류 중 스낵과자류 66건 중 3건에서 $6.02-11.82{\mu}g/kg$ 검출되었고 비스킷 71건 중 2건에서는 $14.78-17.83{\mu}g/kg$ 검출되었다. 면류, 빵류 및 떡류에서는 제랄레논이 검출되지 않았으며 침출차 14건에서 최고 $53.76{\mu}g/kg$ 검출, 선식 24건 중 16건에서 가장 높은 검출율(66.7%)을 나타내었다. 전분 2건, 시리얼두유 1건에서 제랄레논이 각각 5.55-8.56, $10.26{\mu}g/kg$ 검출되었다. 제랄레논 모니터링 결과는 기준이 설정되어 있는 유럽연합(곡류분말: $75{\mu}g/kg$, 빵, 비스킷, 스낵, 아침식사대용 시리얼류: $50{\mu}g/kg$, 영아 및 유아용 시리얼류: $20{\mu}g/kg$) 기준이하의 수준이었으며 국내외 연구보고와 비교한 결과 낮거나 비슷한 수준으로 검토되었다. 연구결과 곡류가공품에 대한 제랄레논 오염수준은 높지 않았으나 지구 온난화로 기후변화에 민감한 곰팡이독소와 같은 자연독소의 발생 증가가 우려되므로 선제적으로 대응하는 안전관리가 요구된다.

Keywords

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