• 제목/요약/키워드: Food organism

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유통 도시락류의 세균분포에 관한 조사 연구

  • 박숙;임현철;송양석;정귀택;박돈희
    • 한국생물공학회:학술대회논문집
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    • 한국생물공학회 2001년도 추계학술발표대회
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    • pp.902-905
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    • 2001
  • This study was carried out to investigate the sanitary conditions for foods providing in food service facilities such as convenience stores, flour stores, resting places in expressway and fast food stores in Kwang-ju city from May to September 2001. The samples were kimbabs and hamburgers, and were tested for indicative microorganism and food poisoning organism. and food poisoning organism.

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소비자의 유전자재조합 콩 식품 구매의사 및 표시요구에 대한 경로 분석 (The Path Analysis of Consumers' Decision-making to Purchase GMO Foods and Request for Labelling It)

  • 허경옥
    • 한국생활과학회지
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    • 제12권3호
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    • pp.351-362
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    • 2003
  • The goal of this study was to examine the effects of perceived risks toward GMO (Genetically Modified Organism) food on the decision-making to purchase it and demands to reveal its Identity. The major results were as follows. First, consumers strongly perceived the risk toward GMO food, and demanded labeling to identify it. But, many consumers had indecisive in the purchase of GMO food. Second, consumers with high level of perceived risks toward GMO food were more likely not to buy GMO food. In addition, the level of perceived risk was high among consumers who had many children. Finally, consumers with high level of perceived risks toward GMO food were more likely to demand the labelling for identifying GMO food. Consumers who had many children and high level of reliability for labelling food safety strongly demanded to label for revealing GMO food.

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유전자재조합 식품에 대한 위험인지 및 구매의사여부 영향요인 분석 (The Investigation of Factors Influencing Consumers' Perceived Risk, and Decision-making to Purchase GMO Food)

  • 허경옥
    • 가정과삶의질연구
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    • 제21권4호
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    • pp.69-77
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    • 2003
  • The goal of this study was to examine which factors influence consumers' demands to reveal the identity of GMO(Genetically Modified Organism) food, risk perception, and decision-making to purchase it. Consumers perceived its risk, and demanded labeling to identify it. Not many consumers wanted to buy GMO food. The results also revealed as follows. First, the level of demand to label for identifying GMO food were high among female consumers, consumers with negative attitude, and consumers severly perceived its risk. The level of perceived risk was high among consumers who were old and had high income, exercised their own healthy programs, showed negative attitude toward GMO food, and demanded strongly for labelling. Second, old consumers, consumers with high income, consumers concerning more about health, consumers with negative attitude and strong demand to label for identifying GMO food were more likely to perceive risk highly for GMO food. Third, consumers' attitudes and the level of perceived risks for GMO food significantly influenced the decision-making to purchase GMO food. However, other variables turned out not to affect consumers' decision-making to purchase it.

기수산 물벼룩 Diaphanosoma celebensis의 안정 배양을 위한 배양 용기의 크기 선택 (Selection of Culture Scale for Stable Culture of an Estunrine Cladoceran Diaphanosoma celebensis)

  • 정민민;김형신;노섬
    • 한국수산과학회지
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    • 제32권4호
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    • pp.466-469
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    • 1999
  • 전세계의 담수역에 널리 분포하는 Daphnia나 Moins와 같은 담수산 물벼룩은 잉어, 붕어, 금붕어와 같은 담수어의 종묘 생산과정에서 먹이 생물로서 널라 이용되고 있다. 그러나, 해산어의 종묘 생산 과정에서는 안정 배양, 대량 배양이 어렵다는 이유로 로티퍼나 알테미아 이외에 널리 이용되는 먹이 생물은 거의 없다. 이 연구에서는 해산 물벼룩보다는 비교적 배양이 용이한 기수산물벼룩 D. celebensis의 배양 용기의 크기가 안정배양에 미치는 영향을 검토하였다. 종 보존 배양 수준의 40ml 배양에서는 16일간의 배양 기간중 14일째에 최고 밀도가 3.416$\pm$0.396 ind./ml에 달하였다 1,500ml와 15,000ml의 준 대량 배양에서는 각각 배양 개시후 12일째와 21일 째에 14.2$\pm$2.122 ind./ml와 2.489$\pm$1.618 ind./ml의 최고 밀도가 관찰되었다. 그리고 실험 기간중 배양의 안정도를 평가하기 위하여 실시한 세가지 배양 수량간 상대적 개체군 증식 지수 (RPGI)의 비교 결과에서는 1,500ml의 배양 용기에서 가장 안정적인 증식양상을 보였다. 뿐만 아니라, 매일 수확 가능한 기수산 물벼룩 D. celebensis의 개체수를 계산한 결과에서도 (possible harvesting number/ind./ml/day) 1,500ml의 배양 용기에서 가장 높은 3.567$\pm$0.607ind./ml/day가 수확 가능하였다. 한때 필요성에 의하여 담수산 물벼룩을 해산어의 종묘생산 과정에서 먹이생물로 이용한 시기가 있었다. 그러나, 앞으로는 기수산 물벼룩을 해수에서 배양하여 해산 자치어의 먹이생물로 이용할 수 있을 것이다.

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카드뮴에 특이적(特異的)인 내성균(耐性菌)의 분리(分離) (Isolation of A Bacterial Strain Which Baa Specific Tolerance Against The Cadmium)

  • 박찬성;최경호
    • 한국식품영양과학회지
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    • 제8권1호
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    • pp.25-30
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    • 1979
  • 공장지역(工場地域) 폐수(廢水)로부터 cadmium에 대(對)한 내성균(耐性菌)을 분리(分離)하였으며 이것은 Staphylococcus aureus로 동정(同定)되었다. 동(同) 균주(菌株)는 cadmium 이외(以外)의 중금속(重金屬)($Cr^{3+},\;Hg^{2+},\;Zn^{2+},\;Pb^{2+},\;Cu^{2+}$ 등(等))에 의(依)하여서는 10ppm의 농도(濃度)에서 평균(平均) 약(約) 30%의 증식(增殖)이 저해(沮害)되었으나 cadmium에 의(依)해서는 50ppm까지는 저해(沮害)되지 아니 하였다. 동(同) 균주(菌株)의 증식(增殖)을 완전(完全)히 저해(沮害)하기 위(爲)하여 500ppm의 cadmium농도(濃度)가 필요(必要)하였으나 동(同) 균주(菌株)를 10ppm의 cadmium 또는 $Pb^{2+}$ 존재하(存在下)에서 15시간(時間) 배양(培養)한 세균(細菌)은 500ppm의 cadmium 존재하(存在下)에서도 증식(增殖)이 가능(可能)하였다. 이상(以上)의 결과(結果)로부터 분리(分離)한 균주(菌株)는 타중금속(他重金屬)에 의(依)해서는 생육(生育)이 쉽게 저해(沮害)되나 cadmium에 의(依)해서는 상당한 농도(濃度)까지 생육(生育)이 저해(沮害)되지 아니하는 균체(菌體), 즉(卽) cadmium에 특이적(特異的)인 내성균(耐性菌)으로 판단(判斷)되었다.

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빵 이스트를 먹이로 이용한 부유성 코페포다 Apocyclops sp.(Copepod: Cyclopoida)의 배양 (The Culture of free-swiming Copepod Secies Apocyclops sp. (Copepod; Cyclopoida)by baking Yeast)

  • 정민민;김형신;노섬
    • 한국양식학회지
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    • 제12권4호
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    • pp.303-307
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    • 1999
  • Copepod is useful live food organism in the larval rearing. However of fin fish, culcures of copepod species (Specially calanoida and cyclopoida) were very difficult under artificial management conditions. In this study, we report successful culture of a free swimming cyclopodia copepod species (Apocyclops sp.) by easily baker's yeast as food. The maximum culture density of Apocyclops sp. was observed 11,200±2,660 ind/ℓ during the 30 days culture periods in the 1.5ℓ culture tanks. The nauplii were growth up maximum density 6,400±432 ind/ℓ on day 16th. The number of egg carring female was observed maximum density (666.7 ind./ℓ) of two times after 6days and 28 days of initial culture.

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환경교육 전.후 학생들의 환경문제에 대한 태도와 인식변화에 관한 연구(II) (A Study on The Change of University Student's Consciousness and Behavior for Environmental Problems Before and After Environmental Education(II))

  • 박기학;이덕난
    • 환경위생공학
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    • 제22권4호
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    • pp.105-117
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    • 2007
  • The research was conducted based on the 1012 cases questionnaire for the purpose of to evaluate the change effect of university student's consciousness and behavior before and after lecture on environmental problems. And this questionnaires were performed with self-administered by the university student who made a application for liberal arts related to environmental subjects. The results were as follows. According to the analysis results the most students responded that the most serious problem of environmental pollution before the lecture on environmental education was a genetic modified organism(3.64/4.00), but the most serious problem of environmental pollution was changed to the topic of water pollution(3.96/4.00) after the lecture on environmental problem. And also according to the analysis results dributed by gender were that boy students show a higher concerning(170%) than that of girl students(150%). The most good results obtained after lecture on environmental problem were water pollution(23.0%), air pollution(11.5%), waste material pollution(10.9%), food additives (10.0%), genetic modified organism(8.0%), endocrine disrupter(7.5%), respectively. And according to the analysis results distributed by a grade were that the concerning of a low grade(freshman, sophomore)were higher than that of a high grade(junior, senior) in the topic of water pollution, air pollution, waste material pollution. But there were high level of awareness on the topic of food additives, genetic modified organism, endocrine disrupter to the all students(freshman to senior). And according to the analysis results distributed by a major field of study were that students who major in art & athletics, liberal art and etc(public health) were show a deep concerning than that of science & engineering. Finally, the environmental education during the university class were effectively contribute to increase the awareness of the seriousness of environmental pollution problem(8.2%) and also contribute to the practical life after class also increase their consciousness of environmental problem(59.8%).

담수산 물벼룩 Moina macrocopa과 기수산 물벼룩 Diaphanosoma celebensis의 염분 농도별 점프 이동에 대한 생존 및 증식 반응 (Survival and Growth Responses on Jumping of the Each Saline Concentrations of Freshwater Cladoceran Moina macrocopa and Estuarine Cladoceran Diaphanosoma celebensis)

  • 정민민;김형신;노섬
    • 한국수산과학회지
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    • 제34권6호
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    • pp.697-704
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    • 2001
  • 단순 구성된 동물 먹이생물 급이 계열 (로티퍼-알테미아)을 이용하는 해산어의 종묘 생산 과정에서는 알테미아 수급 불균형 및 가격 파동 발생으로 알테미아를 대체할 수 있는 새로운 먹이생물의 개발을 요구하고 있다. 이 연구에서는 알테미아 대체 먹이생물로서 담수산 물벼룩 M. macrocopa과 기수산 물벼룩 D. celebensis의 이용 가능성을 검토하기 위한 일환으로 해수에서의 반응 결과 (생존과 증식)를 알아보았다. 담수산 물벼룩 M. macrocopa과 기수산 물벼룩 D. celebensis을 이용하여 배양 환경으로서 다양한 염분 조건으로의 점프 이동 후 두 종 물벼룩의 생존과 증식 반응을 관찰하기 위하여 16일간의 실험 기간 중 매일의 증식 상태와 단시간 생존율을 관찰하였다. 이 연구 결과, 기수산 물벼룩 D. celebensis는 0 ppt의 염분 배양 환경을 제외한 전 실험구에서 비교적 양호한 생존과 증식 반응이 관찰된 반면, 담수산 물벼룩 M. macrocopa은 염분 농도 4 ppt 이상의 점프 이동 환경하에서는 섭이 행동과 유영 행동이 급속히 둔화되면서 증식은 물론 생존조차도 불가능한 것을 알 수 있었다. 특히, 담수산 물벼룩 M. macrocopa의 단시간 생존율을 관찰한 결과에서는 3 ppt 이상의 염분 농도로 점프 이동한 경우에는 점프이동 후 5분 이내에 일부 사망 개체가 발생하는 것이 관찰되었다. 이 연구의 결과, 기수산 물벼룩 D. celebensis은 담수산 물벼룩 M. macrocopa과는 달리 현재 많은 연구가 수행되고 있는 코페포 다와 함께 해산어의 종묘 생산 과정에서 알테미아의 대체 먹이생물로 연구를 진행할 가치가 있는 것으로 판단되었다.

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신육종기술의 규제 전망 및 문제점 (Trends in the global regulation of new breeding techniques and perspective)

  • 김동헌;서승만;김지영;김해영
    • Journal of Applied Biological Chemistry
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    • 제61권4호
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    • pp.305-314
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    • 2018
  • 'New Breeding Techniques (NBTs)' have been one of hot issues, since their future will be affected profoundly by national as well as international regulatory landscapes. In this review, we compare characteristics of NBTs with conventional and genetic modification, and analyze genetically modified organism (GMO) regulatory systems in the context of possible regulation of NBTs. NBTs are very heterogeneous in terms of principles, methodologies, and final products. As Living Modified Organisms (LMO) is defined in the Cartagena Protocol on Biosafety (CPB) as an organism containing novel combination of genetic materials obtained by the use of modern biotechnology, CPB as well as other national legislations locate itself somewhere in the middle between product-based and process-based regulations. It is also noted that jurisdictions with regulatory systems more oriented to product-based one tend to be more productive and decide or may decide to exempt site-directed nucleases-1 from GMO regulation. In this context, Korean legislations are reviewed to clarify the commons and differences in GMO definitions. Act on Transboundary Movement of LMO Act, Food Sanitation Act and Agricultural and Fishery Products Quality Control Act are three major acts to regulate GMOs. It is noted that there are differences in the definition of LMO or GM food/products especially between the LMO Act and the Food Sanitation Act. Such differences may cause conflicts between Acts when policy-decision regarding the regulation of NBTs is made. Therefore, it is necessary to reorganize legislations before policies regarding the regulation of any techniques from biotechnology are made.