• 제목/요약/키워드: genetically modified (GM) food

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농업인의 사료용 유전자변형 작물 재배 의사 추정 (Estimating Farmers' Willingness to Cultivate Genetically Modified Rice and Grass for Feed in Korea)

  • 김승규;류진;정재원;성명환;김태균
    • 한국초지조사료학회지
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    • 제35권4호
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    • pp.303-308
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    • 2015
  • 본 연구는 전국의 686개 농가에 대한 설문조사를 통해 농가의 GM 기술과 GM 작물 및 이를 활용한 사료에 대한 인식, 농가의 생산 현황과 속성을 바탕으로 농가의 GM 벼(쌀)와 GM 사료작물에 대한 기술 수용성을 분석하였다. 개별적인 농가 속성에 따라 수용 의사가 다르지만, 2개의 GM 기술 수용성 추정에서 공통적으로 GM 기술 수용 의사를 높이는 변수는 GM 농작물의 필요성에 대한 인식과 잡곡이나 조사료 재배여부로 나타났다. 평균적인 경종 농가의 경우 7.8% 유의수준에서 농가소득이 47% 증가할 경우 벼(쌀)에 대한 GM 기술을 수용하고, 벼(쌀)를 제외한 사료작물의 경우에는 14.1% 유의수준에서 농가소득이 43% 증가할 때 GM 기술을 수용하는 것으로 분석되었다. 벼(쌀)와 비교해서 사료 작물은 상대적으로 적은 소득 증가에도 불구하고 수용 가능성이 나타났다. 그러나 두 가지 경우 모두 통계적 유의성이 5%를 넘어가 신뢰도에 문제가 있다. 앞으로 GM 기술에 대한 신뢰성이 높아짐에 따라 CVM에서 발생하는 가상적 편의가 줄어든다면 통계적 유의성이 높아질 것으로 기대되므로 이에 대한 추가 연구가 필요하다.

Detection of Eight Different Events of Genetically Modified Maize by Multiplex PCR Method

  • Kim, Jae-Hwan;Song, Hee-Sung;Heo, Mun-Seok;Lee, Woo-Young;Lee, Soon-Ho;Park, Sun-Hee;Park, Hye-Kyung;Kim, Myung-Chul;Kim, Hae-Yeong
    • Food Science and Biotechnology
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    • 제15권1호
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    • pp.148-151
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    • 2006
  • Multiplex PCR was performed to simultaneously detect eight different events of genetically modified (GM) maize. Specific primers were constructed from GA21, T25, TC1507, Mon810, Mon863, Event176, Bt11, and NK603 events of GM maize. Using this PCR method, specific GM maize was monitored in commercialized foods and feed.

유전자 이입에 따른 GM쌀 섭취 마우스의 Housekeeping Gene 발현 패턴 비교 (Comparison of Expression Pattern of Housekeeping Genes in Mice fed Genetically Modified Rice)

  • 이동엽;허진철;이규현;김동호;우상욱;조현석;이상한
    • 한국식품저장유통학회지
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    • 제14권6호
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    • pp.688-694
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    • 2007
  • To evaluate the human risk of long-term intake of genetically modified (GM) rice, we carried out RT-PCR of housekeeping genes. Housekeeping genes, which show highly uniform expression in living organisms during various stages of development and under different environmental conditions, were normalized by RT-PCR. We assessed the expression of 10 common housekeeping genes (18s rRNA, 25S rRNA, UBC, UBQ5, UBQ10, ACT11, GAPDH, eEF-$1{\alpha}$, ${\beta}$-TUB, GAPDH, ${\beta}$-actin, B2m, G6pd2, Gyk, Gus, Hprt, Cyclophlin A, Tfrc, ${\alpha}$-tubulin and RPL13A) in the liver, stomach, small intestine, large intestine, kidney and spleen of mice fed GM or non-GM rice. We found no significant differences in the expression of housekeeping genes between the two groups of mice.

Market Power of Genetically Modified Soybeans Traded Between the United States and Korea

  • Son, Eun-Ae;Lim, Song Soo
    • Journal of Korea Trade
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    • 제23권6호
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    • pp.131-144
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    • 2019
  • Purpose - The purpose of this study was to investigate market power of soybeans exported by the United States to Korea. Particularly, this paper considered dichotomous characteristics of genetically modified (GM) soybeans and non-GM soybeans and conducted empirical analysis of these two segregated soybean markets to understand key tenets of market power in international soybean trade. Design/methodology - The difference in market power between GM and non-GM soybeans was analyzed using Residual Demand Elasticity (RDE) and Residual Supply Elasticity (RSE) models over the period of 2008~2018. RDE and RSE models under an imperfect competition condition were used to estimate market margins and determine whether GM and non-GM exporters or importers exercised market power in the destination market. Findings - Empirical results suggested that the U.S. had a market power on both GM and non-GM soybean exports. GM exports had greater market power than non-GM exports (14% vs. 9%). By contrast, Korea showed an inability to grab market margin or exert market power in soybean imports. Both export supply by the U.S. and import demand by Korea were found to be more responsive to price changes of GM soybeans than to prices changes of non-GM soybeans. This might be due to a self-interested, profit-seeking strategy by the exporter and many concerned consumers regarding potential adverse effects of GMOs in the importing country. Originality/value - This paper fills the literature gap by exploiting market power in both GM and non-GM markets with explicit consideration of price correlations between GM and non-GM soybeans in Korea. A number of existing studies have provided evidence for market power broadly embedded in international commodity trade. However, studies focusing on Korean markets are limited. No study has explored the country's soybean trade. Furthermore, the majority of prior studies have almost exclusively focused on the market power from a standpoint of exporting countries without discussing importers' market structure. This paper also sought to understand potentially distinguished patterns of market power between GM and non-GM markets.

Quantitative Analysis of Phosphinothricin-N-acetyltransferase in Genetically Modified Herbicide Tolerant Pepper by an Enzyme-Linked Immunosorbent Assay

  • Shim, Youn-Young;Shin, Weon-Sun;Moon, Gi-Seong;Kim, Kyung-Hwan
    • Journal of Microbiology and Biotechnology
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    • 제17권4호
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    • pp.681-684
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    • 2007
  • An immunoassay method was developed to quantitatively detect phosphinothricin-N-acetyltransferase (PAT) encoded by the Bialaphos resistance (bar) gene in genetically modified (GM) pepper. The histidine-tagged PAT was overexpressed in Escherichia coli M15 (pQE3l-bar) and efficiently purified by $Ni^{2+}$ affinity chromatography. A developed sandwich enzyme-linked immunosorbent assay (S-ELISA) method (detection limit: $0.01{\mu}g/ml$) was 100-fold more sensitive than a competitive indirect ELISA (CI-ELISA) method or Western blot analysis in detecting the recombinant PAT. In real sample tests, PAT in genetically modified herbicide-tolerant (GMHT) peppers was successfully quantified [$4.9{\pm}0.4{\mu}g/g$ of sample (n=6)] by the S-ELISA method. The S-ELISA method developed here could be applied to other GMHT crops and vegetables producing PAT.

유전자재조합식품에 대한 소비자의 인지도 조사 - 지역과 직업,학력을 중심으로 - (Consumer Awareness and Attitudes about Genetically Modified Foods - According to Area, Occupation, and Education -)

  • 김혜영;김미정
    • 한국식생활문화학회지
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    • 제26권6호
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    • pp.657-672
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    • 2011
  • This study was a survey of consumer awareness and attitudes about genetically modified foods and their labeling regulations. Questionnaires were distributed to 4,620 consumers who lived in different areas of Korea, and 4,076 people responded. The consumers were asked about knowledge, labeling information, and their sources of information about GM foods. Respondents from Seoul, Jeonnam, and Gyeongnam answered mostly "nearly don't know > moderate > never know > know a little." Respondents from Gyeonggi answered "moderate > nearly don't know > never know > know a little." According to occupation, housewives, company employees, consultants, and students answered mostly "nearly don't know > moderate > never know > know a little. "Consumers answered about the intent to buy GM foods differently according to area, occupation, and education. Seoul and Gyeonggi residents said that reinforcing factors to relieve the insecurity of GM foods were "evaluating safety > management of GM foods by the government > GM food regulation system." There were other answers according to area, occupation, and education. About GM-related education methods that they wished to have, residents of the Seoul area said "books/leaflets" most often, but residents of the Gyounggi area said "attending a lecture" most often. Housewives also said "attending a lecture," but teachers and students said "Internetbased education" most often. About the kinds of education that they could join, Seoul residents answered "consumer groups > school parents > public institutions," but Gyeonggi and Chungnam area residents answered "public institutions > consumer groups > school parents." Housewives and students answered "consumer groups" most often, but consultants and private business owners answered "public institutions" most often. We realized that different education methods were necessary for different areas, occupations, and education levels.

유전자재조합식품 안전성과 표시에 대한 소비자 인식조사 (Survey of Consumer Awareness and Attitudes Regarding Genetically Modified Food in Korea)

  • 하정철;최수전;권영태;문태화
    • 한국식품영양과학회지
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    • 제32권8호
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    • pp.1401-1407
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    • 2003
  • 유전자재조합식품에 대해 듣거나 알고있는 인지도는 83.7%로 한국소비자보호원이 1999년 3월중 서울시내 20세 이상 성인남녀 526명을 대상으로 선행 조사한 결과(73.4%)에 비해 더 높게 나타났으며 2001년 국제식품정보위원회가 조사한 미국 74%, 호주 83%의 국외 인지도 조사결과와 비교해서도 비슷하거나 더 높은 수치를 보였다. GM 농산물의 개발이익에 대해서는 59.1%의 소비자가 식량증산 및 기아해결에 도움을 줄 것이라고 생각하면서도, GM 식품의 안전성에 대해서는 71.6%의 소비자가 강한 의구심을 나타내고 있었으며, 특히 식품독성(52.2%), 환경에 대한 위해 가능성(40.7%)에 대한 우려가 그 대부분을 차지하였다. 이러 한 이유로 GMO로 표시되어 판매되는 식품에 대해 33.2%의 소비자가 구매거부 의사를 나타낸 반면, 7.4%의 소비자만이 구매의사를 보였다. 하지만 정보부재 등을 이유로 주변의 추이에 따라 판단을 유보하겠다는 소비자도 약 28.0%에 달하는 것으로 나타났다. GM 식품에 대한 정보원으로서는 시민단체 (44.9%), 언론매체 (19.,3%)의 순서로 높은 신뢰를 보였으나 담당 정부기관인 농림부나 식품의약품안전청의 정보는 상당히 신뢰하지 않는 것(9.6 %)으로 답변함으로써 관련부처의 노력과 분발이 필요한 것으로 나타났다. 유전자재조합식품 표시의 필요성에 대한 질문에서는 99.6%의 응답자가 표시를 찬성하는 것으로 나타났으나 2001년부터 실시되고 있는 ‘유전자재조합식품 표시제도’ 인지도에 있어서는 61.7%의 응답자가 잘 모른다고 상반되게 답변함으로써 관련부처 의 홍보가 부족하였다는 사실을 간접적으로 확인할 수 있었다. 향후 표시 제도의 개선방향에 대해서는 표시문구를 보다 알아보기 쉽게 표시(45.2%), 허위표시 여부에 대한 감시와 정보제공의 강화(24.6%), 제도시행에 대한 홍보강화(16.5%)의 순서로 답변하였으며, 대다수의 답변자(93.1%)가 향후 표시품목의 확대를 원하는 것으로 나타나 현행 표시 제도의 재검토와 개선방향에 대한 논의가 시급하다고 판단되어졌다.