• Title/Summary/Keyword: 유전자재조합식품

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Detection of Genetically Modified Maize Safety-approved in Korea Using PCR (PCR을 이용한 국내에서 안전성이 확인된 유전자재조합 옥수수의 분석 방법)

  • Heo, Mun-Seok;Kim, Jae-Hwan;Park, Sun-Hee;Woo, Geon-Jo;Kim, Hae-Yeong
    • Korean Journal of Food Science and Technology
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    • v.35 no.6
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    • pp.1033-1038
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    • 2003
  • Four lines (MON810, GA21, NK603, and TC1507)of genetically modified maize(GMM) were recently approved after a safety-assessment by the Korea Food and Drug Administration (KFDA). In this study, five pairs of specific oligonucleotide primers, based on the gene sequences inserted into maize and zein gene as internal standards, were designed and a method using PCR was developed for monitoring GMM and GMM derived foods circulating in the market. MON810 and GA21 were detected in raw materials of feed and food in the Korean market.

Immunoblotting Assay for Glyphosate-tolerant Genetically Modified Soybean in Soybean Products (식품 중 제초제내성 유전자재조합 콩의 immunoblotting 분석)

  • Son, Dae-Yeul;Moon, Jung-Hee;Ahn, Kang-Mo;Shon, Dong-Hwa;Lee, Kwang-Shin;Sim, Hee-Young;Han, Young-Shin;Lee, Sang-Il
    • Korean Journal of Food Science and Technology
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    • v.36 no.3
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    • pp.369-374
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    • 2004
  • Genetically modified (GM) soybean Roundup Ready carries Agrobacterium sp. CP4 gene, which expresses 5-enolpyruvylshikimate-3-phosphate synthase (CP4EPSPS). CP4EPSPS in GM soybeans and soybean curds was screened using CP4EPSPS-specific polyclonal and monoclonal antibodies (pab and mab, respectively) by immunoblotting. Isolated recombinant CP4EPSPS was detected at detection limits of $0.006\;and\;0.0006{\mu}g$, whereas those of CP4EPSPS expressed in GM soybean were $0.001\;and\;0.0001{\mu}g$g, using mab and pab, respectively. From nine screened soybean curds, two had positive results with pab Immunoblotting method with pab and mab developed in this study could be applied to screen glyphosate-tolerant GM soybeans in soybean products.

The Detection of Genetically Modified Organisms in Soybean by DHPLC and Polymerase Chain Reaction (DHPLC와 중합효소연쇄반응에 의한 유전자재조합 콩의 검출)

  • Lee, Kyoung-Hae;Park, Su-Min
    • Food Science and Preservation
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    • v.15 no.1
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    • pp.88-93
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    • 2008
  • This paper focused on the detection of the genetically modified soybean (Glycine max L. MERRILL) samples to search for the speedy analysis methods. We have identified the PCR (polymerase chain reaction) assay with a newly developed technique called DHPLC (denaturing high performance liquid chromatography) to screen the GMO in soybean. The DHPLC is i1s ability to directly detection specific sequences of DNA by using column. With these characteristics. the DHPLC assay had the advantage of simplicity, rapidty could obtain result within 20 minutes. Whereas $15{\times}10^{-4}ng/{\mu}L$ concentration could be detected with the PCR analysis, $15{\times}10^{-5}ng/{\mu}L$ concentration could be detected with the DHPLC method. Therefore, DHPLC method was considered to be a simple, fast and sensitivity screening method rather than PCR analysis for GMO detection in soybean.