LC-MS/MS를 이용한 견과류 중 트리코테센계 곰팡이 독소 10종 동시분석법 개발

This study presents a method validation for extraction and quantitative analysis of trichothecene mycotoxins in nuts based on quick, easy, cheap, effective, rugged, and safe (QuEChERS) approach for extraction and enhanced matrix removal (EMR)-lipid-disperive-SPE (d-SPE) cleanup method, with detectio...

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Published inHan'gug sigpum wi'saeng anjeonseong haghoeji Vol. 33; no. 5; pp. 354 - 360
Main Authors 김단비, 박지수, 유미영, Kim, Dan-Bi, Park, Ji-Su, Yoo, Mi-Young
Format Journal Article
LanguageKorean
Published 한국식품위생안전성학회 31.10.2018
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ISSN1229-1153
2465-9223
DOI10.13103/JFHS.2018.33.5.354

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Abstract This study presents a method validation for extraction and quantitative analysis of trichothecene mycotoxins in nuts based on quick, easy, cheap, effective, rugged, and safe (QuEChERS) approach for extraction and enhanced matrix removal (EMR)-lipid-disperive-SPE (d-SPE) cleanup method, with detection and quantification by high-performance liquid chromatography coupled with tandem mass spectrometry (LC-MS/MS) in positive- and negative-ion modes. Linearity, precision, and accuracy were validated for LC-MS/MS methods. Results obtained with LC-MS/MS were linear, with correlation coefficient ($R^2$) of 0.998. Limits of detection and quantification for mycotoxins were $0.41-3.57{\mu}g/kg$ and $1.23-10.82{\mu}g/kg$, respectively. Intra- and inter-day precisions (RSD, %) were 0.40-8.44% and 1.93-12.46%, respectively. Results indicated to be rapidly and accurately identifying trichothecene mycotoxins and may be used as a suitable safety management method for nuts and nuts related commodities. 견과류 중에 있는 트리코테센계 곰팡이독소 오염도를 조사하기 위하여 LC-MS/MS를 이용한 정확성과 신뢰성을 동시에 확보할 수 있는 분석방법을 개발하였다. 견과류 중 트리코테센계 곰팡이 독소는 QuEChERS 추출 및 EMR-Lipid-dSPE 정제과정을 통하여 분석에 사용되었다. 검량선 작성을 위하여 트리코테센계 곰팡이독소 10종에 대하여 $2.00{\sim}75.00{\mu}g/kg$의 범위로 혼합표준용액을 제조하여 실험하였으며, 상관계수는 모두 0.998 이상으로 높은 직선성을 나타내었다. 분석방법의 검출한계는 $0.41{\sim}3.57{\mu}g/kg$로 나타났으며, 정량한계는 $1.23{\sim}10.82{\mu}g/kg$로 나타났다. 또한 트리코테센계 곰팡이 독소 10종에 대하여 각각 저, 중, 고 3가지 농도로 처리하여 회수율 실험을 수행한 결과 81.84~96.87%로 나타났다. 확립된 분석법으로 견과류 중 땅콩을 대상으로 오염도를 조사한 결과 1종에서 deoxynivalenol이 검출되었다. 이러한 결과를 바탕으로 확립된 시험법은 견과류 중 트리코테센계 곰팡이 독소 분석에 적합함을 확인할 수 있었으며 견과류 중 트리코테센계 곰팡이 독소 검출 가능성을 확인한바 보다 다양한 종류의 견과류에 대한 모니터링 조사가 필요한 것으로 판단된다.
AbstractList This study presents a method validation for extraction and quantitative analysis of trichothecene mycotoxins in nuts based on quick, easy, cheap, effective, rugged, and safe (QuEChERS) approach for extraction and enhanced matrix removal (EMR)-lipid-disperive-SPE (d-SPE) cleanup method, with detection and quantification by high-performance liquid chromatography coupled with tandem mass spectrometry (LC-MS/MS) in positive- and negative-ion modes. Linearity, precision, and accuracy were validated for LC-MS/MS methods. Results obtained with LC-MS/MS were linear, with correlation coefficient ($R^2$) of 0.998. Limits of detection and quantification for mycotoxins were $0.41-3.57{\mu}g/kg$ and $1.23-10.82{\mu}g/kg$, respectively. Intra- and inter-day precisions (RSD, %) were 0.40-8.44% and 1.93-12.46%, respectively. Results indicated to be rapidly and accurately identifying trichothecene mycotoxins and may be used as a suitable safety management method for nuts and nuts related commodities. 견과류 중에 있는 트리코테센계 곰팡이독소 오염도를 조사하기 위하여 LC-MS/MS를 이용한 정확성과 신뢰성을 동시에 확보할 수 있는 분석방법을 개발하였다. 견과류 중 트리코테센계 곰팡이 독소는 QuEChERS 추출 및 EMR-Lipid-dSPE 정제과정을 통하여 분석에 사용되었다. 검량선 작성을 위하여 트리코테센계 곰팡이독소 10종에 대하여 $2.00{\sim}75.00{\mu}g/kg$의 범위로 혼합표준용액을 제조하여 실험하였으며, 상관계수는 모두 0.998 이상으로 높은 직선성을 나타내었다. 분석방법의 검출한계는 $0.41{\sim}3.57{\mu}g/kg$로 나타났으며, 정량한계는 $1.23{\sim}10.82{\mu}g/kg$로 나타났다. 또한 트리코테센계 곰팡이 독소 10종에 대하여 각각 저, 중, 고 3가지 농도로 처리하여 회수율 실험을 수행한 결과 81.84~96.87%로 나타났다. 확립된 분석법으로 견과류 중 땅콩을 대상으로 오염도를 조사한 결과 1종에서 deoxynivalenol이 검출되었다. 이러한 결과를 바탕으로 확립된 시험법은 견과류 중 트리코테센계 곰팡이 독소 분석에 적합함을 확인할 수 있었으며 견과류 중 트리코테센계 곰팡이 독소 검출 가능성을 확인한바 보다 다양한 종류의 견과류에 대한 모니터링 조사가 필요한 것으로 판단된다.
This study presents a method validation for extraction and quantitative analysis of trichothecene mycotoxins in nuts based on the quick, easy, cheap, effective, rugged, and safe (QuEChERS) approach for extraction and enhanced matrix removal (EMR)-lipid-disperive-SPE (d-SPE) cleanup method, with detection and quantification by high-performance liquid chromatography coupled with tandem mass spectrometry (LC-MS/MS) in positive- and negative-ion modes. Linearity, precision, and accuracy were validated for the LC-MS/MS methods. Results obtained with the LC-MS/MS were linear, with a correlation coefficient (R2) of 0.998. Limits of detection and quantification for mycotoxins were 0.41 to 3.57 μg/kg and 1.23 to 10.82 μg/kg, respectively. Intra- and inter-day precisions (RSD, %) were 0.40 to 8.44% and 1.93 to 12.46%, respectively. Results indicated to be rapidly and accurately identifying trichothecene mycotoxins and may be used as a suitable safety management method for nuts and nuts related commodities. KCI Citation Count: 0
Author 김단비
Park, Ji-Su
유미영
Yoo, Mi-Young
박지수
Kim, Dan-Bi
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Trichothecene mycotoxins
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Analytical method
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Title LC-MS/MS를 이용한 견과류 중 트리코테센계 곰팡이 독소 10종 동시분석법 개발
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