• Title/Summary/Keyword: 미생물 검사

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Assessment of Post-Pasteurization Contamination of Fluid Milk Products (액상유의 살균후 오염에 관한 연구)

  • Huh, Chung-Jae
    • Microbiology and Biotechnology Letters
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    • v.16 no.6
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    • pp.517-521
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    • 1988
  • This study focused on the psychrotrophic post-pasteurization contamination of fluid milk pro-ducts which were processed by HTST system. Pasteurized line samples and container samples of each fluid milk product (whole milk and skim milk) were taken in a large fluid milk plant. tine samples were collected through nine and five different sampling locations for whole milk and skim milk products, respectively. Each sample was subjected to preliminary incubation (PI) at 21$^{\circ}C$ for 16h followed by standard plate count (SPC) and crystal violet tetrazolium agar count (CVT). Flavor, SPC, and psychrotrophic bacteria count (PBC) were determined after 7 d at 7.2$^{\circ}C$. In addition, ten sequential container samples (packaged in 1000ml paperboard containers) were taken from a filler at the beginning of each product run. These samples were used for PI followed by SPC and CVT. In addition, flavor evaluations, SPC and PBC tests were conducted after 7,10, and 14 d at 7.2$^{\circ}C$. The mean PI-CVT values for the line samples showed differences depending on the location. There was major contamination between pasteurized storage tank and the filler. The PI-CVT counts for each container sample were negatively correlated with flayer scores at 10 and 140. There were good correlations among PI-CVT values of line samples and the percentage of total container samples with acceptable flavor after 10d.

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Implementation of Clinical Microbiology Images CAI System Using Web (Web을 이용한 임상미생물 화상 CAI 시스템의 구현)

  • Koo Bong-Oh;Shin Yong-Won
    • The Journal of the Korea Contents Association
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    • v.4 no.4
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    • pp.45-51
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    • 2004
  • The number of development in educational software is currently decreasing despite rapid improvement in computer technology. This is partly due to the fact that the current software relies on the conventional hypermedia method or on the hierarchical method, both of which have inherent limitations. To compensate their limitations while keeping their merits, a hybrid method called the structured hypermedia link method has recently been proposed in the literature. It has been found that the structured hypermedia link method is far superior than the conventional methods in terms of educational effectiveness because it can help a learner to search various data by navigating between the study topics on his own while maintaining his level of cognitively overloaded stress to the minimum. The clinical microbiology laboratories were chosen as the candidate site for this study because its educational system has not been standardized and has been relying heavily on the personal experience. In this study, the hypermedia link method was applied to the development of an education system for the image analysis in clinical microbiology laboratories. For this purpose, a web-based computer aided instruction(CAI) program was designed to systematically organize the Gram stain method based on the standardized image data. In the future, CAI program must be intended to educate for beginner and developed to accept for variable knowledge. And it will be useful program for technicians in case of applying various examinations based Gram stain method of this study.

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Introduction of Clinical and Laboratory Standards Institute Antibiotic Susceptibility Testing Subcommittee Meeting (Clinical and Laboratory Standards Institute의 항생제 감수성 검사 소위원회 회의 소개)

  • Chang, Chulhun L.
    • Annals of Clinical Microbiology
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    • v.21 no.4
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    • pp.69-74
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    • 2018
  • Laboratory medicine is a specialized division that supports physicians in the care of patients by providing rapid and accurate in vitro diagnostic tests. Standardization of every component of a specific test is essential for producing accurate results. The Clinical and Laboratory Standards Institute (CLSI) was founded to develop a formal consensus process for standardization in 1968, and has been publishing standards and guidelines covering all aspects of clinical, research, and other laboratory work. CLSI guidelines are widely used around the world for standardization. The CLSI antimicrobial susceptibility testing subcommittee (AST SC) consists of 6 standing and many ad hoc working groups. Members of the AST SC review submitted proposals and suggestions, decide on approving these submissions in face-to-face meetings held twice a year, and revise CLSI documents accordingly. As these face-to-face meetings are open to anyone who registers to attend, I strongly encourage the members of our Society to attend and actively participate in document development.

Microbiological Hazard Analysis of Foodservice Facilities and Equipment at Kindergarten Foodservice Establishments (유치원 급식시설.설비에 대한 미생물학적 위해분석)

  • Lee, Hye-Yeon;Bae, Hyun-Joo
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.38 no.10
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    • pp.1457-1465
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    • 2009
  • This study was conducted to analyze the food safety management practices and to provide data that could be used to improve food safety management at kindergarten foodservice establishments in Daegu and Gyeongbuk province. Microbiological hazard analysis was conducted from May to July, 2008 at the four foodservice establishments. A total (20 items) of foodservice facilities, cooking utensils, and equipment were tested about total plate counts, coliforms, E. coli, Staphylococcus aureus, Salmonella spp., and Listeria monocytogenes. The microbiological detected levels were higher than the critical limits for prepreparing and cooking knives, chopping boards, working tables (both prepreparing and cooking), refrigerator (inside wall), bart, basket, and tray. E. coli, Salmonella spp., and Listeria monocytogens were not detected in any samples. However, Staphylococcus aureus were detected in rubber gloves for cooking and trench in the bottom at one foodservice establishment. In conclusion, these results suggest that a prerequisite programs guideline should be provided to improve the food safety levels at kindergarten foodservice establishments and the foodservice manager must maintain proper food safety technique for foodservice facilities, cooking utensils, and equipment at kindergarten foodservice establishments to prevent cross-contamination and spread of foodborne pathogens.

Rapid Microbiological Assessment Method by using ATP-Bioluminescence in Ginseng Powder (ATP-Bioluminescence를 이용한 인삼분말의 미생물 신속검사법)

  • 곽이성;김천석;송용범;고셩룡
    • Journal of Ginseng Research
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    • v.25 no.3
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    • pp.127-129
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    • 2001
  • Bioluminescence technique was applied to ginseng powders. ATP bioluminescence can be used as a rapid method that can be implemented for microbiological monitoring of contaminated ginseng powders. The RLU (relative light units) of ATP was proportion to bacterial CFU (colony forming units) when in high contaminated ginseng powders ($\geq$ about 1.0$\times$10$^4$CFU/g). However, when in low contaminated ginseng powders ($\times$10$^4$CFU/g), the RLU was not proportion to CFU, respectively.

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A Report on the Shigella Cultures Isolated in Korea(1975) (1975년도(年度) 한국(韓國)에서 분리(分離)된 이질균(痢疾菌)에 관(關)한 보고(報告))

  • Kim, Soon-Hit;Chun, Nam-Ho;Ryu, Young-Hat
    • The Journal of the Korean Society for Microbiology
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    • v.11 no.1
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    • pp.23-26
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    • 1976
  • The authors identified sixteen Shigella cultures, which were three cultures of subgroup A, ten cultures of subgroup B, three cultures of subgroup D and none of cultures belnoging to the subgroup C was detected as it was in previous year.

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맥주의 Papain Chillproofing이 foaming에 미치는 영향(제 1보) Foaming 정량법 및 맥주생산공정의 spot check

  • 박무영
    • Proceedings of the Korean Society for Applied Microbiology Conference
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    • 1975.07a
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    • pp.111.4-111
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    • 1975
  • 1l들이 mass cylinder에 200ml의 맥주를 넣고 질소가스로써 발포시킨 다음 거품이 사라지는 현상을 시간적으로 측정하는 방법을 이용하며 생산공정의 각 단계에서 채취한 맥주를 검사해 본 결과 chillproofing 공정 이후의 맥주에 foaming이 현저히 손상되고 있다는 것을 알았다.

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액란의 품질검사방법

  • 유익종
    • KOREAN POULTRY JOURNAL
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    • v.27 no.1 s.303
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    • pp.100-103
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    • 1995
  • 액란은 극히 미생물에 오염되기 쉬우므로 제조후의 취급시 충분히 주의하지 않으면 안되며 유통기간내에 반드시 다 사용하지 않으면 안된다.또 사용 용도에 따라서는 살균액란을 구별하여야 한다. 액란 가공공장에서는 약란의 생산시 위생적인 품질을 비롯하여 기능적인 품질 등 생산물의 품질을 객관적으로 평가할 수 있는 방법의 정립이 필요하다. 이것은 특히 생산물의 용도에 따라서 각 시험방법이 효과적으로 적용되어야 할 것이다. 따라서 본고에서는 각 종액란의 품질검사방법을 소개하고자 한다.

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