• 제목/요약/키워드: Clean food

검색결과 362건 처리시간 0.043초

음식물 쓰레기 발효기 제작을 위한 원적외선 가열장치 설계의 물리학적 접근 (Physical Approach of the FIR Heater Design for Food Waste Fermentation)

  • 한두희
    • 한국산학기술학회논문지
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    • 제3권2호
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    • pp.131-135
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    • 2002
  • 지하수의 오염을 막기 위하여 음식물의 매립은 법적 제재를 받는다. 따라서 음식물을 퇴비나 사료로 사용할 수 있는 시스템을 갖추는 것이 바람직하다. 이러한 필요에 따라 음식물 쓰레기 처리용 원적외선 가열기를 법랑 및 전열선을 사용하여 설계하였고, 가열의 효과를 돕기 위한 원적외선 발열 교반기도 설계하였다. 또한 물을 많이 포함하고 있는 음식물 쓰레기의 발효에 알맞은 발열체의 온도가 190℃ 부근임과 원적외선 발열체의 인적외선 방사효율을 조사한 결과 흑색의 법랑이 적절함을 확인하였다.

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대학 교직원의 라이프스타일에 따른 세분시장별 대학 교직원 급식소 서비스 품질 인식 분석 (Measuring Service Quality Perception of University Faculty Members & Staffs Towards Faculty Foodservice Based on Lifestyle Segmentation)

  • 박문경;양일선;김동훈;신서영;이해영
    • 대한지역사회영양학회지
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    • 제8권4호
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    • pp.556-565
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    • 2003
  • Market segmentation helps providers to find better marketing opportunities and allows foodservice managers to develop the right product for each target market. Therefore, this study, taking university faculty and staff as subject, is intended to diagnose the relative value of service quality attribute, on the basis service quality scenario of faculty foodservice; to suggest price for improving customer loyalty in market segments. A questionnaire was developed ar d mailed to 600 Yonsei university faculty and staffs. A total of 385 questionnaires were usable; resulting in a 58.7% of faculty and a 69.7% of staff response rate, respectively. Statistical data analysis was completed using the SAS/Win 6.12 for descriptive Analysis, ANOVA, principal factor analysis, cluster analysis, reliability test and discriminant analysis. The results of the study are as below. Eighteen questions were selected for measuring respondents' lifestyle by AIO method and the seven lifestyle factors derived from factor analysis and aggregated distinct 4 clusters. Service quality attributes of the scenario were determined with 'food quality', 'menu variety', 'atmosphere', 'fast service', and 'clean and sanitation'. 'Food quality', 'menu variety', 'atmosphere', 'fast service', and 'clean and sanitation', in decreasing order, were identified as improving customer loyalty. However, most faculty and staffs were satisfied with the present meal price. The result of this study indicates that the relative value of service quality was differed significantly among the various market segments. 'Food quality', 'menu variety', and 'atmosphere' were determined as major service quality attributes. Thus, customer loyalty could be increased by improving food taste and quality, atmosphere, and service delivery. (Korean J Community Nutrition 8(4) : 556 ∼565, 2003)

Vibrio parahaemolyticus 표준 및 식품분리 균주에 대한 살균소독제 유효성분별 감수성 평가 (Assessment of Both Standard and Isolated Vibrio parahaemolyticus on Efficacy of Commercial Sanitizers and Disinfectants)

  • 김일진;김용수;김형일;최현철;전대훈;이영자;하상도
    • 한국식품위생안전성학회지
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    • 제22권2호
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    • pp.127-131
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    • 2007
  • 본 연구는 표준 및 식품분리 V. parahaemolyticus균에 대한 주요 유형별 살균소독제의 유효성을 평가하고자 하였다. 살균소독제는 에탄올, 요오드, 염소계(무기, 유기) 각 2종, 4급 암모늄, 산, 과산화초산계, 과산화수소를 선정하였다. 시험균주는 표준균주 4종과 자연에서 분리한 10종의 V. parahaemolyticus를 정량적 현탁액 시험방법(유럽 EN 1276)으로 비교 평가하였다 에탄올(75, 95%), 요오드계 25ppm, 4급 암모늄 100 ppm,산, 과산화초산계 145 ppm은 청정조건과, 오염조건 모두에서 $5log_{10}CFU/mL$ 이상의 생균수 감소율을 보였다. 유기염소계의 시험 결과는 $5log_{10}CFU/mL$ 이상의 생균수 감소율을 보였다. 청정조건에서 요오드 15 ppm 처리구는 분리균주 4종과 표준균주 1종을 제외하고 $5log_{10}CFU/mL$ 이상의 생균수 감소율을 보였다. 또한 오염조건에서 요오드 15 ppm 처리구는 $5log_{10}CFU/mL\;(0.93{\sim}3.73log_{10}CFU/mL$ 이하의 생균수 감소율을 보였다. 1,100 ppm의 과산화수소는 모든 시험균주에 대하여 청정, 오염조건에서 $0.29{\sim}3.86 log_[10}CFU/mL$의 생균수 감소율을 보였으므로 소독력이 약한 것으로 판단된다. 결론적으로 에탄올, 요오드(25 ppm), 무기염소계, 4급 암모늄계, 산, 과산화초산계 살균소독제가 V. parahaemolyticus 제거에 효과적인 것으로 판단된다.

서울.경기 일부 중등학생의 식사 행동 및 구내식당 , 매점 이용에 관한 조사 (Evaluation of Food Behavior of Secondary School Students in Seoul and Kyunggi Area)

  • 이원묘;김올상;이영남
    • 대한영양사협회학술지
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    • 제5권1호
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    • pp.85-98
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    • 1999
  • The purpose of this study was to find the proper methods of school food service conducted from June 20th July 30th in 1996. The subjects of this study were 587 parents of students, 794 students and 359 school teachers at 508 middle and high schools in Seoul and Kyunggi area. And the result was as follow. A total of 48.3% of respondent answered they had breakfast regularly. The reasons why they had breakfast, were habits(34.4%) followed by hunger(28.2%), health(19.9%), parent's persuasion(17.5%). They reasons why they didn't have breakfast are, lacks of time(68.8%) followed by absence of appetite(20.5%), diet(4.5%). About the question the problem of eating habits the most of parents of students, chose an unbalanced diet(25.9%), followed by overeating of snacks(21.7%), voracious eating(18.0%), not eating meals(17.5%), eating little(10%) and overeating(6.8%). At the research of an unbalanced diet, the 63.3% of respondents said they eat evenly while the 36.7% said they had an unbalanced diet. From the research of correlativity between food service at elementary schools and eating habits, we knew that the experience of school food service had an effect on an unbalanced diet. And the students living in Seoul complained more than in Kyunggi. The question about the quality of food, 69.0% of respondents said they were not so bad. While 21.2% said not delicious at all just 9.8% of students said they were very satisfied with the taste. Interestingly, more middle school students both in Kyunggi and Seoul answered the food was delicious than high school students. About the question of the price, 49.5% of students thought appropriate(49.5%) while 44.3% said it was too high. Just 5.9% students answered cheap(5.9%). And students living in Kyunggi thought the price was high than students in Seoul. 62.9% of respondents think their refectories were clean while 22.8% think not clean. And 14.3% answered said dirty. Snack bars at school were managed by the contract with trusters(63.2%), while by the school itself(32.6%).

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사용시간 및 온도조건 변화에 따른 살균소독제의 유효성 (Efficacy of Sanitizers Due to the Changes of Contact Time and Temperature)

  • 김형일;박성관;곽인신;성준현;임호수;김후정;김소희
    • 한국식품위생안전성학회지
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    • 제25권4호
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    • pp.325-332
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    • 2010
  • 현탁액시험법을 사용하여 일반적으로 사용되는 살균소독제 3종(차아염소산나트륨 100ppm 또는 200ppm, 염화알킬($C_{12}-C_{18}$)벤질디메틸암모늄 100ppm 또는 200ppm 및 과산화초산 50ppm 또는 100ppm)의 Escherichia coli ATCC 10536 및 Staphylococcus aureus ATCC 6538에 대한 살균 소독력을 다양한 온도(4~$40^{\circ}C$)와 시간(1~60분)에서 청정조건 및 오염조건별로 각각 연구하였다. 차아염소산나트륨(200ppm)은 청정조건에서 $4^{\circ}C$, 1분 처리로 E. coli 및 S. aureus를 5 log 이상 감소시켜 3가지 살균소독제 중 가장 효과적인 살균소독제로 나타났다. 그러나 차아염소산나트륨은 간섭물질과의 반응으로 인하여 오염조건에서는 살균소독력이 급속히 감소하였다. 염화알킬($C_{12}-C_{18}$)벤질디메틸암모늄(200ppm)은 사용온도를 높이거나 사용시간을 늘일 경우 살균소독력이 증가하였으며, 저온에서는 살균효과가 낮을 수 있으나 사용시간을 증가시킴으로서 살균소독력을 확보할 수 있었다. 과산화초산(100ppm)은 $4^{\circ}C$, 5분 처리로 E. coli 및 S. aureus이 5 log 이상 감소하였다. 살균소독력은 간섭물질에 의해 크게 변하지 않았으며 온도 및 시간변화에 따른 영향도 크지 않았다.

생식원료 야채의 전처리공정에서 Hypochlorous Acid의 미생물 제어 효과 (Effect of Hypochlorous Acid to Reduce Microbial Populations in Dipping Procedure of Fresh Produce as Saengshik Raw Materials)

  • 고소미;김정목
    • 한국식품영양과학회지
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    • 제39권4호
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    • pp.637-642
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    • 2010
  • 생식 원재료 전처리공정은 1차 세척-침지-2차 세척-절단공정으로 구성되며, 본 연구에서는 hypochlorous acid를 침지공정에 적용하여 미생물을 제어하고자 하였다. 전처리 단계에서 1차 세척 후에는 감자, 당근, 케일 및 신선초의 총균수는 4.7, 5.3, 5.6, 5.7 log CFU/g이 검출되었으며, 이를 물에 5분간 침지한 경우에는 각각 0.2, 0.2, 0.4, 1.1 log CFU/g를 감소시켰다. 반면 1차 세척 후 100 ppm hypochlorous acid 용액에 5분간 침지한 시료들은 0.5, 0.5, 1.3, 2.8 log CFU/g를 감소시켜 살균효과가 더 좋았으며, 구근류(감자, 당근)보다는 엽채류(케일, 신선초)에 효과적이었다. 하지만 흐르는 물로 세척이 끝난 채소류는 절단공정을 거친 후 다시 0.1~2.7 log CFU/g만큼 미생물수가 증가하였다. 따라서 감자, 당근, 케일, 신선초에 대해 절단공정을 먼저하고 나서 침지하는 공정을 한 경우, 물을 사용하였을 때는 각각 0.9, 0.6, 0.6, 0.4 log CFU/g, hypochlorous acid 용액에 침지한 후에는 각각 3.2, 2.3, 2.5, 2.6 log CFU/g를 감소시켰다. 결론적으로 1차 세척-절단-침지-2차 세척으로 공정을 개선하고 침지단계에서 hypochlorous acid 용액을 처리하는 것이 일반미생물과 유해미생물을 효과적으로 제어할 수 있는 방법으로 나타났다.

Determination of Histamine in a Pharmaceutical Preparation after Clean-Up by Solid- Phase Extraction

  • Kim, Chang-Soo;Kim, Naml-Lee;Jeong, Min-Gyo;Hong, Seung-Hwa;Moon, Dong-Cheul
    • 대한약학회:학술대회논문집
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    • 대한약학회 2002년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.2
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    • pp.397.1-397.1
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    • 2002
  • A human immune globulin preparation (histobulin\ulcorner) are made to bind a small amount of histamine (0.15 $\mu$g) to the protein (12 mg) to increase the resistance of histamine susceptibility in the treatment of allergic diseases. Strict control of histamine content of the drug are required since intake of histamine might result in hypo- or hypertension. headache. or anaphylactic shock syndromes. HPLC analytical method with pre-column fluorescent derivatizalion after clean-up by solid-phase extraction (SPE) was developed. (omitted)

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Investigation of Domoic acid in Shellfish Collected from Korean Fish Retail Outlets

  • Choi, Kyu-Duck;Lee, Jong-Soo;Lee, Jong-Ok;Oh, Keum-Soon;Shin, Il-Shik
    • Food Science and Biotechnology
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    • 제18권4호
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    • pp.842-848
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    • 2009
  • The purpose of this study was to determine the extent of domoic acid (DA) a potent neurotoxin, responsible for the syndrome amnesic shellfish poisoning (ASP) contamination of various species of bivalve shellfish purchased from fish market in Korea and the implications for food safety. Liquid chromatography (LC) methods were applied to quantify DA in shellfish after sample clean-up using solid-phase extraction (SPE) with strong anion exchange (SAX) cartridges. Toxin detection was achieved using photodiode array ultraviolet (LC-UV) and electrospray ionization-mass (LC-ESI-MS). DA was identified in 4 bivalve shellfishes of 872 shellfishes collected from March, 2006 to October, 2007 in Korea. DA amount of 3 surf clams (Mactra veneriformis) collected at Seoul, Daejeon, and Daegu were 4.13, 1.99, and 1.94 mg/kg, respectively. DA amount of 1 pink butterfly shell (Peronidia venulosa) collected at Seoul was 3.02 mg DA/kg. The amounts of DA that were present in 4 bivalve shellfishes were within EU guideline limits for sale of shellfish (20 mg DA/kg).

패스트푸드점을 이용하는 광주 지역 중.고등학생의 의식에 관한 조사 (A Survey on Consciousness of Middle and High School Students Using Fast Food Restaurants in Kwangju)

  • 김경애;조수한
    • 동아시아식생활학회지
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    • 제4권2호
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    • pp.27-37
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    • 1994
  • A survey was conducted to investigate consciousness of middle and high school students unsing fast food restaurants in Kwang-ju, from July 20 to August 20 in 1993. The results are follows; 1. There are many motives which drive students into fast food restaurants. Among those are its convenience as a place of meeting friends, pleasant and clean environment for eating, no time limit of staying there, hygiene of dining equipment and table ware. 2.The majority of the students used the fast food restaurants between 12:00 and 14:00 pm. It shows that time does not influence much on using there, because they answered in high percent that they use at any time. 3. Student usually pay individually and in some cases their friends or parents pay the bill. 4. Major factor in fast food selection was their tastes, nexts, were proper price, nutrition, and so on, They prefer their home food to restaurants fast foods. 5. The most of students have positive response to make traditional Korean foods into fast foods. The students, in particular, emphasized for the development of traditional Korean foods ; Sikhae and Sujonggwa(beverage), Docbokki, Japchae, kinds of rice cake and Jun. 6. Students suggested to be better fast food service, such as lowering the price, increasing the portion size and developing fast foods from the traditional Korean foods.

Study on a model of street vended food choices by Korean high school students

  • Cho, Ki-Woong;Park, Sang-Hyun;Joo, Na-Mi
    • Nutrition Research and Practice
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    • 제5권5호
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    • pp.481-488
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    • 2011
  • Street vended food (SVF) includes food and beverages prepared and sold outdoors or in public areas by street merchants for consumption on the scene or later without further preparation. Due to its low price and convenience, SVF has been popular in Korea for a long time, particularly with high school students. Beyond Korea, SVF is also popular in southeast Asia and southern Africa in the form of ready-to-eat food. This study on high school students, who are main consumers of SVF in Korea, focused on the factors that affect consumer loyalty. The study was performed by questionnaire and used AMOS software to develop a structural equation model. The results of verifying the model's fidelity were $X^2$=685.989, df=261, GFI=0.851, AGFI=0.814, NFI=0.901, CFI=0.907, RMR=0.048, indicating a satisfying structural model. SVF quality and service, emotional response, and the physical environment had a statistically significant effect on consumer loyalty. In contrast, SVF sanitation had no statistically significant effect on consumer loyalty. Based on these results, the sanitary management of SVF needs to be addressed immediately combined with education for SVF providers to maintain a clean environment.