• 제목/요약/키워드: Preservation of health

검색결과 459건 처리시간 0.028초

Liquid Boar Sperm Quality during Storage and In vitro Fertilization and Culture of Pig Oocytes

  • Park, C.S.;Kim, M.Y.;Yi, Y.J.;Chang, Y.J.;Lee, S.H.;Lee, J.J.;Kim, M.C.;Jin, D.I.
    • Asian-Australasian Journal of Animal Sciences
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    • 제17권10호
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    • pp.1369-1373
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    • 2004
  • The percentages of sperm motility and normal acrosome on the liquid boar semen diluted and preserved at $4^{\circ}C$ with lactose hydrate, egg yolk and N-acetyl-D-glucosamine (LEN) diluent were significant differences according to preservation day and incubation time, respectively. The sperm motility steadily declined from 96.9% at 0.5 h incubation to 78.8% at 6 h incubation at 1 day of preservation. However, the sperm motility rapidly declined after 4 day of preservation during incubation. The normal acrosome steadily declined from 93.3% at 0.5 h incubation to 73.8% at 6 h incubation at 1 day of preservation. However, the normal acrosome rapidly declined after 3 day of preservation during incubation. The rates of sperm penetration and polyspermy were higher in 5 and $10{\times}10^6$ sperm/ml than in 0.2 and $1{\times}10^6$ sperm/ml. Mean numbers of sperm in penetrated oocyte were highest in $10{\times}10^6$ sperm/ml compared with other sperm concentrations. The rates of blastocysts from the cleaved oocytes (2-4 cell stage) were highest in $1{\times}10^6$sperm/ml compared with other sperm concentrations. In conclusion, we found out that liquid boar sperm stored at $4^{\circ}C$ could be used for in vitro fertilization of pig oocytes matured in vitro. Also, we recommend $1{\times}10^6$sperm/ml concentration for in vitro fertilization of pig oocytes.

알코올 농도 및 담금비에 따른 숙성 기간별 매실주의 에틸카바메이트 함량조사 (Determination of ethyl carbamate in maesil wine by alcohol content and ratio of maesil (Prunus mume) during ripening period)

  • 김난영;엄미나;도영숙;김중범;강석호;윤미혜;이정복
    • 한국식품저장유통학회지
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    • 제20권3호
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    • pp.429-434
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    • 2013
  • 매실주의 숙성 중 에틸카바메이트의 발생을 알아보고자 일반 가정에서 담그는 방식으로 매실주와 복분자주를 담아 저장하면서 발생량을 측정하였다. 매실주는 매실과 설탕 및 $19.5^{\circ}{\sim}35^{\circ}$ 담금주의 담금비를 달리하여 담아, 15일부터 180일까지 15~30일 간격으로 에틸카바메이트의 함량을 분석한 결과 숙성 90일 까지 매실을 설탕만으로 숙성한 경우와 복분자주에서 에틸카바메이트는 발생하지 않았으나 매실의 알코올의 농도가 높을수록 에틸카바메이트의 생성량이 증가하였다. 매실과 담금주의 비율을 달리한 결과, 매실보다는 알코올 함량이 에틸카바메이트 발생에 더 큰 영향을 미치는 것을 확인하였으며 120~150일 숙성기간이 지나면서 에틸카바메이트 발생량은 점차 감소하는 경향을 보였으나 90일 숙성 후 여과처리 하였을 경우 여과하지 않았을 경우보다 180일까지 2배가량 높은 에틸카바메이트가 발생하였으나 이들 모두 안전한 수준이었다.

문화와 과학의 융합적 관점에서 본 전통음식의 역사 및 미래 (Traditional Foods: Historical Perspectives and Future Prospects)

  • 김희섭
    • 한국식생활문화학회지
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    • 제30권1호
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    • pp.1-7
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    • 2015
  • Traditional cuisine reflects cooking traditions shaped by political, economic, social, cultural, and environmental conditions characterized by authenticity and uniqueness. Traditional food is not only a part of our cultural heritage but also a knowledge resource. Application of food science and technology in Korean traditional foods was reviewed from six points of view, including food preservation, fermentation, changes in food materials, utilization of food functionality, and packaging and development of cooking appliances. Books from disparate times were chosen in order to cover a wide range of materials from the past to the present. Food preservation and fermentation techniques were applied to various food materials. Combination of science and skills contributes to the accessibility of diverse food materials and better quality foods. Koreans use assorted and resilient plants, which have an abundance of functional substances such as food materials. Among cooking appliances, microwave oven and refrigerator are the most innovative products with huge influences on food eating patterns as well as lifestyle. Packaging effectively reduces post-harvest preservation losses, and better packaging has technical improvements for storage and distribution. Kimchi was chosen as an example in order to study technology from the past to the present. Availability of Kimchi cabbage, enrichment of functional ingredients, identification of useful microbial species, standardization of recipe for commercialization, prevention of texture softening, introduction of salted Kimchi cabbage and Kimchi refrigerators, and packaging were reviewed. The future of traditional foods in the market will be competitive. First, traditional foods market should be maintained to protect the diversity of food materials. Secondly, tailored foods for individuals should be considered using foods with functional properties. Information on health benefits would provide insights into health and traditional food products. Third, speedy transfer of new technology to the traditional food industry is needed to ensure food quality production and new opportunities in the market. Fourth, safety of traditional foods should be ensured without sacrificing the essential characteristics of culturally important foods. Improvement of logistics, distribution, and facility should be carried out. As demand for convenience foods increases, traditional foods should be developed into products.

환경영향평가 제도변천 (Development of Act and Regulation in Environmental Impact Assessment)

  • 한의정;강인구;문현생;방규철;정동환
    • 환경영향평가
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    • 제3권2호
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    • pp.85-92
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    • 1994
  • EIA has been developed as a tool for environmental protection into promulgation of the Environment Preservation Act in 1977, with the introduction of EIA concept in the Pollution Control Act amended in 1971. EIA system has been improved with the enlargement of project type, public participation, guiderline improvement, and amendment of Act and presidential decree. Also, this system has been developed to reduce adverse effects affecting environment and human beings for environmentally sound and sustainable development. This study is to analyze contents of Acts and regulations relative to Environmental Impact Assessment from 1971 to recently.

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지언고론(至言高論)에 의한 한의학적(韓醫學的) 정신치료(精神治療)에 대(對)한 연구(硏究) (의안(醫案)을 중심으로) (A study of psychotherapy by means of oriental medicine though the Giungoroen(至言高論)-Focusing on Ancient clinical document)

  • 구병수;김근우
    • 동의신경정신과학회지
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    • 제12궈1호
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    • pp.29-45
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    • 2001
  • Objectives: In order to overcome psychotherapeutic problems though the theory of oriental medicine by means of the Giungoroen(至言高論-wise saying and lofty opinion). Methods: This research was done by comparing the contents of psychotherapeutic ancient clinical document with the western medical method of psychotherapy Results: 1. Inquire into the clinical document, the psychotherapy is used treatment of wide area disease inclusive of neuropsychiatric disease different from the western medicine. 2. Inquire into the method of psychotherapy, the supportive psychotherapy and behavior therapy is applied. 3. In case of psychotherapy and treatment of medicines is done at the same time, treatment of medicines followed psychotherapy. 4. A viewpoint of Yusic(唯識-vijnaptim-atra)-a field of Buddhism, possibility of psychotherapy is showed. 5. A doctor's oriental thought and oriental medical Preservation of Health view was based. 6. The change of patient's the emotion and will is focused than disease itself. Conclusion: When western medical method of psychotherapy is complemented by a oriental thought and oriental medical Preservation of Health view, the good effects is hoped in psychotherapy.

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금냉법(金冷法)에 대한 고찰 - 중국 논문을 중심으로 - (Review on Geumnaeng Method - Focus on Chinese Medical Articles -)

  • 박해모
    • 대한예방한의학회지
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    • 제22권3호
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    • pp.73-81
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    • 2018
  • Objectives : 'Geumnaeng method'' is a well-known folk remedy, but It has not been studied in academia. This study was conducted to review the chinese published articles on Geumnaeg method (Jinleng method) of Chinese traditional medicine. Methods : The author searched Chinese published papers from 2000 to 2018 via CNKI(China National Knowledge Infrastructure) database by using keyword 'Jinleng', 'Jinleng method', and analyzed the papers covered Jinleng method health preservation, and classified them including periods, type of study, target symptoms, and comparison between countries. Results : 17 studies were reviewed. The study of Jinleng method in China began in 2005. 8 articles (47.1%) were review articles, 4 articles (23.5%) of the case report and case series, and 5 articles (29.4%) were clinical studies. Clinical studies have increased since 2008. Most of the studies related to genital disorders and sexual function were mainly performed. There were differences between Japan, Korea and China in Jinleng method. Conclusions : Various disease and symptoms was researched with Jinleng method in China. Research in China is more active than other country. We need to increase the level of evidence of Jinleng method's effectiveness through additional studies in the future.

건강기능식품에 대한 인식 및 구매의도 연구 (The Perceptions and Purchase Intentions of Health Food Consumers)

  • 이정윤;채수규;김규동
    • 한국식품저장유통학회지
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    • 제18권1호
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    • pp.103-110
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    • 2011
  • 본 연구는 소비자들의 건강기능식품에 대한 인식과 구매 의도를 조사하기 위하여 수행되었다. 연구를 위한 자료는 서울 및 경기 지역 거주 만 20세 이상의 성인 남녀 454명을 대상으로 2010년 5월 10일부터 6월 5일까지 수집되었다. 결과를 요약하면 첫째, 건강관리행동에 있어 음주빈도는 '거의 안 마신다'(41.4%), '월 1-2회'(27.8%) 등의 순이었고, 흡연량은 '안 피운다'는 응답이 80.8%로 월등히 많았다. 운동빈도는 '거의 안함'(43.8%), '주 2회 이하'(30.0%) 등의 순이었고, 스트레스는 '어느정도 받는다'는 응답이 44.5%로 가장 많았다. 건강에 대한 인식은 '건강하지만 걱정하는 편'이라는 응답이 59.5%로 가장 많았는데 '질병이 있다'는 응답도 14.5%나 되었다. 끝으로 '운동'을 통해 건강을 관리한다는 응답이 37.2% 가장 많았고, '특별히 건강관리를 하지 않는다'(26.2%)는 응답이 뒤를 이었다. 둘째, 건강기능 식품 '복용경험이 있다'고 응답한 사람은 83.5%로 높게 나타났고, 복용경험이 없는 경우, '필요성을 느끼지 못해서'(60%), '의문스러운 효과 때문'(16%) 등이 주요한 이유였다. 셋째, 건강기능식품에 대한 인식은 '인증제도가 필요'(4.44), '질병예방에 도움'(3.60), '전문판매점이 필요'(3.59) 등의 항목에 순서대로 높은 동의를 보였다. 반면에 '부작용이 없음'(2.15), '질병치료 효과가 있음'(2.58) 등의 항목에는 부정적인 태도를 보였다. 넷째, 건강기능식품에 대한 관심도는 3.09로 별로 높지 않았으나 향후 구매의도는 3.40으로 다소 높게 나타났다. 이상의 결과를 놓고 볼 때, 많은 소비자들이 건강기능식품을 복용하고 있으나 부작용을 우려하고 있고 질병치료효과나 노화방지효과 등에 대해서 부정적 태도를 보이고 있으며 또한 관심도도 별로 높지 않은 편이다. 따라서 소비자들의 우려를 불식시키고 관심도를 제고하기 위해, 품질을 개선하고 제품에 관한 충분하고 정확한 정보를 제공하며 또한 인증제도의 정착 및 홍보를 위한 소비자 교육프로그램을 시급히 마련해야 할 것이다.

Pilot system을 이용한 감자의 알콜발효중 성분 변화 (Changes in the Components during Alcohol Fermentation of Potatoes Using Pilot System)

  • 정용진;서지형;이주백;장상문;신승렬;김광수
    • 한국식품저장유통학회지
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    • 제7권2호
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    • pp.233-239
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    • 2000
  • To proceed mass production and improve its quality, we fermented potatoes using pilot system and investigated the changes in components during fermentation. After liquefaction and saccharification of potatoes by Nuruk(group I), crude enzyme(group II) and glucoamylase(group III), sugar contents in all groups were 18brix equally. However sugar contents in group(II) and group(III) after 24hrs decreased deeply to 7.2 and 8.8 % respectively, after 24hrs. Alcohol content in group(I) increased slowly and was the highest such as 6.8% after 48hrs. Fusel oils in all groups were n-propanol, isobutanol and isoamylalcohol. The major fusel oil in all groups was isoamylalcohol. At the early stage of fermentation, free sugars were glucose, maltose and lactose. Glucose decreased deeply during fermentation and at latter of the fermentation, galactose was detected in all groups. The contents of total free amino acid were 516.57~569.98 mg% in group(I), 193.97~292.11 mg% in group (II) and 186.31~270.53 mg% in group(III). The contents of aspartic acid, serine, glutamic acid, alanine, arginine, and histidine were high in all groups.

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토종꿀의 가공과 저장 중 품질 특성의 변화 (Physical and chemical changes during processing and preservation of Korean native-bee honey at different temperature)

  • 김은선;은종방;이종욱
    • 한국식품저장유통학회지
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    • 제2권2호
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    • pp.293-301
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    • 1995
  • Quality changes of Korean native-bee honey were investigated during processing and preseration at different temperature. There were no changes of HMF(Hydroxy methyl furfural) and proline contents, color and diastase activity in Korean native-bee honey, when the honey separated from honey combs at 20$^{\circ}C$ and 40$^{\circ}C$. However, at 50 and 80$^{\circ}C$, browning of Korean native-bee honey was shown, HMF content was increased rapidly and proline content and diastase activity were decreased. There were no changes of chemical composition in Korean native-bee honey during storage at 4$^{\circ}C$ for 6 months. But color was darken and HMF content was increased slowly in Korean native-bee honey during storage at 20$^{\circ}C$. During storage at 30$^{\circ}C$ and 40$^{\circ}C$, HMF content was increased highly, proline content, diastase activity and total acidity was decreased rapidly. It is recommended that Korean native-bee honey is separated from honey comb and purified at less than 40$^{\circ}C$ and stored at 4$^{\circ}C$ through 20$^{\circ}C$.

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한국 환경 영향평가제도의 변천 (Regulatory Development of Environmental Impact Assessment in Korea)

  • 장준기;이재운;권명희;정동환
    • 환경영향평가
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    • 제2권2호
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    • pp.95-103
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    • 1993
  • EIA has been introduced as a tool for environment protection into promulgation of the Environment Preservation Act in 1977, which replaced the Pollution Control Act in Korea. EIA system has been improved with the enlargement of project type, public participation, guideline improvement, and regulatory development. Recently, Environmental Impact Assessment(EIA) Act will have an important role for sustainable development. This article deals with regulatory development, implementation order, EIA project type, and EIS preparation guidelines by Act promulgated and amended, also it explains comparison analysis of Environmental Policy Act and Environment Impact Assessment Act Major results are summarized in the table.

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