• 제목/요약/키워드: safety & health

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국내유통농산물 중 잔류농약 모니터링 및 안전성 평가 (Monitoring of Pesticide Residues and Risk Assessment of Agricultural Products Consumed in South Korea)

  • 김성훈;최원조;백용규;김우성
    • 한국식품영양과학회지
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    • 제37권11호
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    • pp.1515-1522
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    • 2008
  • 본 연구는 물리.화학적인 특성이 서로 다른 37종의 농약 성분을 GC/MS/MS로 농약 성분별 MRM에 대한 동시다성분 분석법을 개발하였으며, 이 분석법에서 제시한 MRM을 이용하여 농산물 중 잔류하고 있는 농약성분의 정성 및 정량이 동시에 가능하게 하였고, 이 분석법은 기존의 장비(GC, HPLC, GC/MS 등)를 이용한 검사법에 비해 1건 처리 시 소요되는 분석시간이 짧으며(1건 분석 시 소요시간 30분 이내) 검사결과의 정확성에서 우수하였다. 잔류농약분석에 일반적으로 사용되는 GC-ECD 및 GC-NPD를 사용하지 않고 정성 및 정량이 동시에 가능한 GC-MS/MS를 사용하여 MRM mode를 이용한 농약성분의 동시 분석 및 분석법에 따른 validation을 실시하였다. 그 결과 real sample인 콩과 레몬의 경우 모든 농약에서 70% 이상의 회수율을 보였으며, correlation coefficient($r^2$)도 대부분의 농약에서 0.99 이상의 좋은 직선성을 나타내었다. 또한 분석법을 근거로 국내유통 중인 농산물의 잔류실태를 파악하기 위해 모니터링을 실시하였으며 검출된 농약성분에 한해서는 섭취하는 농약에 대한 위해도를 평가하였다. 국내의 대형시장에 유통되는 농산물 약 1,000여건을 수거하여 확립된 분석법으로 잔류농약 모니터링을 실시하였다. 그 결과 23개의 농산물에서 잔류농약이 검출되었는데 주로 엽채류에서 잔류농약이 검출되었고 금귤류에서 주로 검출된 과실류는 2.2%의 검출율을 보였다. 이 중 MRL을 초과하는 수준의 농약이 검출된 것은 엽채류 중 하나인 무 잎에서 검출되어 0.1%의 부적합율을 나타냈다. 검출된 농약과 그 검출량을 토대로 농약의 1일 섭취허용량(acceptable daily intake, ADI)을 바탕으로 음식을 통해 매일 섭취하는 농약이 사람에게 미치는 위해도를 평가한 결과 ADI 대비 $0.0000{\sim}0.3462%$의 현저히 낮은 수준으로 나타났다.

위탁급식 업체선정에 영향 미치는 요인에 대한 고객사의 중요도 인식 조사 (A Study of the Client′s Importance Perception on the Factors Affecting the Foodservice Management Contract)

  • 김현아;양일선;이보숙;박진영
    • Journal of Nutrition and Health
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    • 제37권5호
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    • pp.406-414
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    • 2004
  • The purposes of this study were 1) to investigate the importance level on factors affecting the foodservice management contract perceived by the clients in the office building, government and public offices and manufacturing company in Seoul and Kyungi 2) to compare the perceived importance levels of the present contract and future contract 3) to compare the perceived importance levels of the competitive bid with those of the private contract. To collect the data on the perceived importance level on the affecting the foodservice management contract, the questionnaires were developed by the delphi technique and modified by the pilot test. The questionnaires consisted of 4 categories and 19 items on the factors affecting the foodservice management contract and the importance level on the factors were measured by 5-likert scale. From March 12 to April 13 in 2003, the self-administrative questionnaires were mailed to 280 clients. The questionnaires were responded from the 50 clients (respondent rate: 25%). On the factors affecting the present contract and the future contract, among the 4 categories (the appropriateness of foodservice operation plan, the evaluation of the foodservice company, sales ability, the conditions of the cost in the contract), the importance level of the appropriateness of foodservice operation plan was higher than those of the other categories. In the comparison of the perceived importance level between the present contract and the future contract, the importance level of 4 items (sanitation and safety management plan, menu management plan, service management plan, food cost per meal) in the future contract were significantly higher than those in the present contract (p<.01, p<.05, p<.05, p<.01). There were the significant differences between the private contract and competitive bid on the factors affecting the present contract in the 3 items, which were $\ulcorner$renewal plan for interior and environment$\lrcorner$, $\ulcorner$strategic alliance with the contractor$\lrcorner$, $\ulcorner$lobby of the foodservice company$\lrcorner$ (p<.05, p<.05, p<.05). And on the factors affecting the future contract, there were significant differences in the 2 items, which were $\ulcorner$renewal plan for interior and environment$\lrcorner$and $\ulcorner$cost per meal$\lrcorner$in comparing the competitive bid and private contract (p<.05, p<.01). The clients perceived the appropriateness of foodservice operation plan was more important than the other categories in the future foodservice management contract. It was proposed that the foodservice management contract company should focus on the foodservice operation to satisfy the customers and clients in order to get more contract in the future.

우엉 뿌리 추출물의 최종당화산물 형성 억제 효능 (Inhibition of advanced glycation end product formation by burdock root extract)

  • 이다례;김춘영
    • Journal of Nutrition and Health
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    • 제49권4호
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    • pp.233-240
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    • 2016
  • 항산화, 항암 및 항염증 효능 등의 생리 활성이 보고된 우엉 뿌리의 열수 추출물을 제조하여 advanced glycation end products (AGEs) 형성 저해 효과를 확인하였다. AGEs는 bovine serum albumin (BSA)과 단당류인 glucose, fructose, galactose를 혼합하여 $37^{\circ}C$에서 3주간 배양하여 생성하였고 매주 형광도 측정, fructosamine 분석, ${\alpha}$-dicarbonyl compounds 함량 분석을 통해 AGEs의 생성량을 확인하였다. 우엉 뿌리 추출물의 AGEs 생성 저해능을 AGEs 생성 억제제로 알려져 있는 aminoguanidine (AG)의 저해능과 비교하였다. 우엉 뿌리 추출물은 BSA와 단당류인 glucose, fructose, galactose 각각의 당화반응을 억제하였으며 특히 배양 3주차에서 BSA와 glucose의 당화반응 결과물인 AGEs 생성을 유의적으로 저해하였다. 농도 2 mg/mL 이상의 우엉 뿌리 추출물은 1 mM AG보다 AGEs 생성 저해능이 우수하였으며 농도 4 mg/mL의 우엉 뿌리 추출물은 배양 3주차에서 AGEs 생성을 약 80% 이상 억제하는 효능을 나타냈다. 체내 혈당은 당뇨병과 같은 질환과 식이의 영향을 받으므로 다양한 glucose 농도에서 우엉 뿌리 추출물의 AGEs 생성 억제능을 조사하였다. 그 결과 AGEs 생성은 glucose의 농도에 비례하여 증가하였으며 우엉 뿌리 추출물은 당뇨환자의 식후에 관찰되는 혈당인 25 mM glucose 군에서 1 mM의 AG보다 높은 우수한 저해 효과를 확인하였다. 본 연구 결과는 우엉 뿌리 추출물의 AGEs 생성 억제라는 새로운 기능성을 밝히며 향후 당뇨 합병증 예방 효능을 가진 기능성 식품으로의 개발 가능성을 제시한다.

방풍통성산이 비만인에 미치는 영향에 대한 임상적 연구 (Clinical study of Bangpoongtongsungsan on body weight change in subjects with obesity)

  • 신대희;조국현;이혁;문미경;강대길;윤용갑;박도심;정선관;이호섭
    • 대한한의학방제학회지
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    • 제16권2호
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    • pp.133-144
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    • 2008
  • Recently, people are becoming fatter in most parts of the world. Obesity is regarded as an important risk factor to adversely affect the health of humans, associated with hypertension, hyperlipidemia, diabetes, and cardiovascular diseases. In the present study, therefore, we tested the short time efficiency and safety of Bangpoongtongsungsan as a drug to decrease body weight in subjects with obesity. A total 48 volunteers (24 man, 24 woman) with body mass index (BMI : weight in kg divided by square of height in meters) of $23㎏/m^2$ participated in clinical study for 12 weeks, from 2008, March 01 to 2008, Jun 30. The subjects was received a dietary supplement of 12 pieces hard capsules per day (4 pieces in one, 3 times in a day) during the clinical study. At the end of clinical study, body weight of subjects was significantly decreased from $72.21{\pm}11.44\;kg$ to $70.53{\pm}11.67\;kg$ (p<0.05). Waist circumferences of subjects were reduced $91.58{\pm}6.43\;cm$ to $85.25{\pm}7.70\;cm$ (p<0.05). Also, a BMI of subjects was significantly decreased $26.07{\pm}2.35\;kg/m^2$ to $25.63{\pm}2.63\;kg/m^2$ (p<0.05). Particularly, a decrease in body weight, waist circumferences, and BMI was more significant in woman than man. But, other biochemical levels including lipid and glucose in plasma had no changes at the end of clinical study. In conclusion, administration of Bangpoongtongsungsan in subjects with high body weight fat could inhibit obesity associated with a decrease in body weight, waist circumferences, and BMI.

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전라남도 지역에서 생산된 천일염의 염도 및 중금속 함량 (Salinity and Heavy Metal Contents of Solar Salts Produced in Jeollanamdo Province of Korea)

  • 이강덕;박정욱;최차란;송현우;윤수경;양호철;함경식
    • 한국식품영양과학회지
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    • 제36권6호
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    • pp.753-758
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    • 2007
  • 전남지역에서 생산된 천일염의 안전성에 대한 기초자료를 제공하기 위해 전남의 주 생산지에서 생산된 천일염 433 종을 대상으로 NaCl 함량 및 중금속(Pb, Cd, As, Hg) 함량을 조사하였다. NaCl 함량은 대부분 80%대 수준이었으며 전체의 63%의 천일염이 $80{\sim}85%$ 함량을 보여 가장 높은 분포를 나타내었다. Pb은 77%의 시료에서 검출되지 않았고 Pb이 검출된 천일염은 모두 기준치인 2 ppm 이하로 나타났다. Cd은 78%의 시료에서 검출되지 않았으며 3곳을 제외하고는 대부분 기준치 이하로 검출되었다. As는 4종의 시료에서만 검출되었는데 모두 기준치에 못 미치는 0.1 ppm 이하로 나타났고, Hg은 모든 천일염에서 검출되지 않았다. NaCl 함량과 Pb 농도는 지역별로 차이를 보였고 Cd, As, Hg은 지역간에 차이가 나타나지 않았다. 따라서 전남에서 생산된 천일염은 생산 지역 간의 다소의 차이는 있으나 중금속오염에 대하여 안전한 수준인 것으로 평가되었다.

대중매체 식품영양정보에 대한 성인 여성의 요구도 조사 (A Survey for Needs and Preference of Food and Nutrition information on Mass Media for Korean Female Adults)

  • 곽정은;이서연;이상훈;고광석
    • 대한지역사회영양학회지
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    • 제19권6호
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    • pp.550-557
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    • 2014
  • Objectives: This study was conducted to examine the preferences and needs of typical Korean females adults for food and nutrition information provided by the mass media. Methods: A total of 343 females (77 in their 20s, 85 in their 30s, 88 in their 40s and 93 in their 50s) residing in the Seoul/Gyeonggido area was surveyed on general characteristics, main sources of food and nutrition information and needs for sources and contents of nutrition information. Results: The survey showed that typical Korean females obtained knowledge of food and nutrition mainly through the Internet (30.4%) and broadcasting (29.0%). Typical Korean females were interested in 'dietary management for weight control' (21.9%), 'the prevention and treatment of disease' (20.0%), 'food safety' (16.8%), 'proper dietary habits' (14.6%), 'cookery' (11.8%), 'functional foods' (9.6%), 'restaurant details' (3.5%) and 'life-cycle-specific dietary guideline' (1.6%). Needs for food and nutrition program forms on TV were 'educational programs' (34.3%), 'documentaries' (20.8), 'expert lecture-style' (13.0%), 'entertainment programs' (11.9%), 'expert conversation' (11.4%), 'news-style' (4.6%) and 'public campaign advertisements' (4.0%). On the Internet, 38.6% of the respondents preferred to get information provided by food and nutrition-related institutions (38.6%) while 26.1% preferred webtoons for nutritional information. The favored forms in mobile applications were 'monitoring their diets' (29.5%), 'data-based texts information' (21.4%), 'experts feedback' (20.6%), 'communities' (15.1%) and 'games' (13.1%). The rates of the preference to obtain information from experts such as nutritionists and dietitians and doctorsor dietitian turned reporters increased markedly with older ages. Conclusions: Since the mass media is a main source of food and nutrition information for the general public, the effectiveness and accuracy of the information provided should be enhanced by taking the needs of the public into account. The quality of information should be improved by involving more nutrition experts.

초등학교 원로교사의 생활지도 경험에 관한 해석학적 탐구 (An Interpretive Inquiry into the Guidance Experiences of Senior Elementary Teachers)

  • 이정희
    • 초등상담연구
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    • 제7권1호
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    • pp.111-133
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    • 2008
  • The purpose of this study was closely to explore the guidance experiences of senior elementary teachers who have had over 30 years of teaching experiences in elementary school based on interpretive(or hermeneutic) inquiry. The entry research question was 'What are the guidance experiences of senior elementary teachers like?' Seven senior elementary teachers working for O elementary School in G city participated in this study voluntarily. Each participant was interviewed twice in a consecutive manner. 14 periods of interview were completed all together and each period took about 40-60 minutes. In conclusion, this study conceptualized the guidance experiences of the senior elementary teachers(participants) as follows: First, the concepts of guidance held by the participants were conceptualized as 1) supporting and caring activity helping students to lead joyful school life, 2) assisting activity helping students to grow on good basic life habits, 3) character building activity helping students to lead integrative growth. Second, the fields and contents of guidance held by the participants were conceptualized as basic life habits, manners, and health & safety. Interestingly, these concepts were evolved in connection with their personal, practical teaching experiences rather than in-service teacher education. Third, the guidance methods frequently used by the participants were co-work with parents, exemplary storytelling, counselling, and praise. The participants applied these methods differently according to the grade, individual difference, and school curriculum policy to some degree. Fourth, the participants have experienced a lot of struggles with students, teachers, and parents in doing their guidance practices throughout the whole teaching career. Their guidance experiences commonly shifted from more teacher-centered or authoritative to more student-centered or relational way as their teaching years accumulated. Interestingly, all the participants more or less lived as lifelong learners to create their own right space as senior teachers in today's competitive and challenging landscape. This study strongly suggests that responsible teacher education can playa great role of enabling senior teachers to cope with guidance issues successfully. Compared with the speedy social change, the teacher education in Korea had been so authoritative, provider-based, subject-based until recently and it have not met the needs and wants of the elementary teachers in field. This trend has significantly hindered them from catching up with the needs of the speedy social change in terms of contemporary guidance issues. This study is limited in that the data is solely collected based on interview. So, an observational research is strongly suggested in order to uncover the situated understanding of the guidance experiences of elementary senior teachers.

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재난 대응 활동 시 노출가능 유해인자 종합분석 -화재 현장을 중심으로- (Comprehensive Analysis of Exposed Adverse Factors in Disaster Response Activities - Focused on Fire -)

  • Park, Chanseok
    • 한국재난정보학회 논문집
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    • 제10권3호
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    • pp.420-430
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    • 2014
  • 화재와 같은 재난현장에서 재난대응활동을 수행하는 소방공무원은 진압 구조 구급활동을 하는 동안 열, 연기, 유독가스에 노출되며 정신적인 스트레스, 생물학적 유해인자, 그리고 화재 진압 시 요구되는 인체공학적으로 부자연스러운 자세로 인한 육체적 과부하 등의 다양한 유해인자에 노출되고 있다. 그러나 지금까지 이에 대한 연구는 개별적 수준에서는 일부 존재해 왔지만 화재현장에서 소방관에게 노출되는 유해인자를 종합적으로 정리하고 그 대책까지 제안한 연구는 존재하지 않았다. 본 연구의 목적은 재난현장에서의 안전 및 유해인자를 종합적으로 도출하고 그 대응방안까지 제시함으로써 소방공무원의 노출로 인한 건강장애 및 사고 예방에 기여하는 데 의미가 있다고 할 수 있다. 이에 소방업무환경별로 화재진압분야, 구조 및 구급분야, 생활환경분야로 나누어 환경분석을 하고 물리적 화학적 생물학적 심리적 측면으로 구분하여 화재현장의 유해인자를 도출하고 노출현황을 제시하였다. 그리고, 물리적 유해인자 중에는 특수건강검진 결과 가장 많은 케이이스수를 차지하는 소음분야에 대하여 대처방안을 모색하였다. 화학적 유해인자는 보호장비와 클린룸 운영방안을, 생물학적 유해인자는 감염예방교육과 예방접종, 주기적 관리점검 체계확립을, 심리적 유해인자는 PTSD 경감 부스 설치와 멘토링제도의 도입을 제시하였다.

A Suggestion for the Strategic Choice of Seoul to be a Network Center in Northeast Asia

  • Ahn, Kun-Hyuck;Ohn, Yeong-Te
    • 지역연구
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    • 제15권2호
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    • pp.155-187
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    • 1999
  • The East Asian Region has experienced remarkable economic growth and transformation of interurban networking over the past three decades, and urban competiti veness for a networking hub in this region has become a critical issue confronting cities. Competitiveness of the Seoul capital region for a networking hub in Northeast Asia is outstripped by other competing cities in East Asia, notwithstanding its geo-politically and geo-economically advantageous location in this region. In this paper, we aim to appraise the Seoul capital region's competitiveness in terms of logistics distribution, financial function and logistics distribution, financial function and agglomeration of transnational corporations (especially of RHOs and other managerial functions), and to advance the networking strategies of the region for a Northeast Asia hyb. As a result of analysis, we suggest that the Seoul capital region be developed as a Northeast Asian center for regional headquarters or leading global corporations and financial services for being a strategic nodal point in Northeast Asia in the 21st century. A recent survey shows that where to locate an RHQ is influenced by various factors, such as potential market and manufacturing site in the city's hinterland, quality of life, such things as culture, health, safety, education, a well-educated, English-speaking population, reliable air transport, state-of-the-art communications, and an active policy to offer foreign companies generous incentives. The Seoul capital region, which is located at a strategic nodal point advantageous as a springboard for its Northeast Asian hinterland, cannot meet the other conditions mentioned above. To overcome these drawbacks in attracting transnational capital and to create competitiveness as a strategic hub of RHQs in Northeast Asia, it is urgent to initiate a structural reform of the Korean economy, politics, and overall society, to minimize the regulation of FDI, and to provide various incentives for foreign investment. Moreover, we propose the construction of an 'International Business Town' in the Seoul capital region, as a medium to intermediate these strategies and to shape them in a spatial scale. The projected 'International Business Town(IBT)' will be a 'free city' open to international business in which liberal economic activities are guaranteed by special legislation and administration, infrastructures needed for international and improved accessibility to the airport are furnished, and the preference of foreign high-income investors for cultural and living environment are satisfactorily met. IBT is conspicuously differentiated from a raft of other cities' incentives in that it combines deregulation and incentive programs to attract the investment of transnational capital, with a spatial program of offering an urban environment preferred by the high-income investors for cultural and living environment are satisfactorily met. IBT is conspicuously differentiated from a raft of other cities' incentives in that it combines deregulation and incentive programs to attract the investment of transnational capita, with a spatial program of offering an urban environment preferred by the high-income and managerial class. Furthermore, it can be an excellent way of overcoming the xenophobia that has spread among the Korean population by concentrating foreign businesses and their lifestyles in a specific foreign businesses and their lifestyles in a specific zone. In conclusion, 'International Business Town', in line with other legislative and administrative incentive programs, will function as a driving force to make the Seoul capital regional more competitive as a regional business hub in Northeast Asia.

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분화성 갑상선암환자의 방사성 요오드 치료시 전리함과 Geiger-Muller계수관에서 방사선량률 측정값 비교 (Comparison of the Measured Radiation Dose-rate by the Ionization Chamber and GM(Geiger-Müller) Counter After Radioactive Iodine Therapy in Differentiated Thyroid Cancer Patients)

  • 박광훈;김구환
    • 대한방사선기술학회지:방사선기술과학
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    • 제39권4호
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    • pp.565-570
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    • 2016
  • 방사성 요오드($^{131}I$) 치료는 분화성 갑상선암 환자에서 재발을 감소시키고 생존률을 증가시키나, 환자에서 방출되는 방사능으로 인하여 피폭을 야기시킬 수 있으므로 환자로부터 발생되는 방사선량률을 측정하는 것이 방사선안전관리 측면에서 중요하다. 방사성 요오드($^{131}I$) 치료시 널리 사용되는 측정기 중 전리함과 GM계수관으로 측정된 방사선량률의 감도와 측정효율을 구하였다. 방사성 요오드($^{131}I$)를 150mCi 경구투여 받은 분화성 갑상선암 환자의 상복부로부터 1 m거리에서 경과 시간에 따라 방사선량률을 측정하였다. 시간에 따른 변화를 직접적으로 비교한 결과, 고선량률에서의 감도와 측정효율은 GM계수관보다 전리함이 높게 나타났고, 통계적으로 유의하였다(p<0.05). 저선량률에서의 감도와 측정효율은 GM계수관보다 전리함이 낮게 나타났지만 통계적으로 유의한 차이를 나타내지 않았다(p>0.05). 방사성 요오드($^{131}I$) 치료시에 검 교정이 완료된 전리함과 GM계수관으로 정확하고 신속한 방사선량률을 측정하여 환자에게 설명함으로써 방사성 요오드 치료 후 퇴원하는 환자에게 환자가족 또는 주변 사람들에게 미칠 수 있는 방사선피폭을 예측하고, 불필요한 예단을 줄여줄 수 있을 것이다.