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Identification of Faulty Red Pepper Powder Containing Seasoned Red-pepper Sauce

고추다대기 혼입 불량고춧가루 판별법 개발

  • Park, Yong-Chjun (Scientific Food Investigation Team, Food Safety Evaluation Department, National Institute of Food & Drug Safety Evaluation, Food & Drug Administration) ;
  • Lim, Ji-Young (Scientific Food Investigation Team, Food Safety Evaluation Department, National Institute of Food & Drug Safety Evaluation, Food & Drug Administration) ;
  • Kim, Mi-Ra (Scientific Food Investigation Team, Food Safety Evaluation Department, National Institute of Food & Drug Safety Evaluation, Food & Drug Administration) ;
  • Park, Young-Eun (Scientific Food Investigation Team, Food Safety Evaluation Department, National Institute of Food & Drug Safety Evaluation, Food & Drug Administration) ;
  • Lim, Jan-Di (Scientific Food Investigation Team, Food Safety Evaluation Department, National Institute of Food & Drug Safety Evaluation, Food & Drug Administration) ;
  • Hwang, Cho-Rong (Scientific Food Investigation Team, Food Safety Evaluation Department, National Institute of Food & Drug Safety Evaluation, Food & Drug Administration) ;
  • Kim, Kyu-Heon (Scientific Food Investigation Team, Food Safety Evaluation Department, National Institute of Food & Drug Safety Evaluation, Food & Drug Administration) ;
  • Lee, Jae-Hwang (Scientific Food Investigation Team, Food Safety Evaluation Department, National Institute of Food & Drug Safety Evaluation, Food & Drug Administration) ;
  • Cho, Tae-Yong (Scientific Food Investigation Team, Food Safety Evaluation Department, National Institute of Food & Drug Safety Evaluation, Food & Drug Administration) ;
  • Lee, Hwa-Jung (Scientific Food Investigation Team, Food Safety Evaluation Department, National Institute of Food & Drug Safety Evaluation, Food & Drug Administration) ;
  • Lee, Sang-Jae (Scientific Food Investigation Team, Food Safety Evaluation Department, National Institute of Food & Drug Safety Evaluation, Food & Drug Administration) ;
  • Han, Sang-Bae (Scientific Food Investigation Team, Food Safety Evaluation Department, National Institute of Food & Drug Safety Evaluation, Food & Drug Administration)
  • 박용춘 (식품의약품안전청 식품의약품안전평가원 식품위해평가부 식품감시과학팀) ;
  • 임지영 (식품의약품안전청 식품의약품안전평가원 식품위해평가부 식품감시과학팀) ;
  • 김미라 (식품의약품안전청 식품의약품안전평가원 식품위해평가부 식품감시과학팀) ;
  • 박영은 (식품의약품안전청 식품의약품안전평가원 식품위해평가부 식품감시과학팀) ;
  • 임잔디 (식품의약품안전청 식품의약품안전평가원 식품위해평가부 식품감시과학팀) ;
  • 황초롱 (식품의약품안전청 식품의약품안전평가원 식품위해평가부 식품감시과학팀) ;
  • 김규헌 (식품의약품안전청 식품의약품안전평가원 식품위해평가부 식품감시과학팀) ;
  • 이재황 (식품의약품안전청 식품의약품안전평가원 식품위해평가부 식품감시과학팀) ;
  • 조태용 (식품의약품안전청 식품의약품안전평가원 식품위해평가부 식품감시과학팀) ;
  • 이화정 (식품의약품안전청 식품의약품안전평가원 식품위해평가부 식품감시과학팀) ;
  • 이상재 (식품의약품안전청 식품의약품안전평가원 식품위해평가부 식품감시과학팀) ;
  • 한상배 (식품의약품안전청 식품의약품안전평가원 식품위해평가부 식품감시과학팀)
  • Received : 2012.05.08
  • Accepted : 2012.06.15
  • Published : 2012.06.30

Abstract

In this study, the experimental method has been investigated using molecular biological way to identify raw materials from seasoned red-pepper sauce which is one of the most popular spices in Korea. 6 kinds of seasoned red-pepper sauces were chosen as a sample containing chilli pepper, garlic, onion as a major ingredient and species specific primers were used for the identification of the raw material of processed food. Selected samples were pre-treated to remove salt (samples were washed with distilled water 3~4 times for desalting), after that, to amplify the extracted genes, whole genome amplification (WGA) kit was performed. Afterwards, PCR products were confirmed through the electrophoresis. As a result, 102, 180, 280 bp of specific PCR products were confirmed for each major ingredients such as chilli pepper, garlic, onion. From this study, the gene extraction method was validated for the identification of ingredients from the spices and it would be applied to distinction of low quality chilli pepper powder including seasoned red-pepper sauce illegally.

본 연구에서는 향신료 조제품인 고추다대기의 사용원료 확인을 위한 분자생물학적 기법을 이용한 시험법을 검토하였다. 시료 중 원료성분 확인을 위하여 고추, 마늘, 양파의 종 특이 프라이머를 이용하였으며, 대상 식품원료로는 고추다대기 6건을 선정하였다. 시료로부터 직접 유전자 추출 후 PCR을 실시하였으나 고추 등 사용원료의 확인이 어려웠다. 따라서 염 성분을 제거하기 위하여 증류수를 이용하여 3~4회 세척 후 PCR한 결과 6건 중 5건에서만 고추유전자 확인되었으며, 마늘 및 양파 성분은 모두 확인이 불가능하였다. 따라서 염 성분 제거 후 추출유전자의 증폭을 위하여 Whole Genome Amplification (WGA) 키트를 사용 후 PCR을 실시하였다. 그 결과 모든 시료에서 고추유전자(102 bp)를 확인하였으며, 양파를 함유하는 6건 및 마늘을 함유하는 4건에서 각각 양파(280 bp) 및 마늘(180 bp) 유전자를 확인하였다. 따라서 본 연구에서 검토된 고추다대기에 대한 시료 전처리법, 유전자추출법, 추출유전자증폭법 등은 고추다대기를 이용한 불량고춧가루 제조 시 이를 판별할 수 있어 식품안전관리에 활용할 수 있을 것으로 기대된다.

Keywords

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