• Title/Summary/Keyword: 세균배양

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Concentrations of total culturable microorganisms and Its Identification in Public Facilities (다중이용시설의 실내공기 중 총부유세균 농도와 종류)

  • Jeon, Byoung-Hak;Hwang, In Young
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.16 no.1
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    • pp.868-876
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    • 2015
  • This study was conducted to measure the concentrations of total culturable bacteria (TCB) and to identify the bacteria in thirty public facilities (7 elderly-care facilities, 4 hypermarkets, 4 university hospitals, 7 child care facilities, 4 subway stations and 4 bus terminals) in Seoul and Gyeonggi-Do Province. Although all concentrations measured in these study facilities did not exceed the national maintenance standard, it is believed that elderly-, child-care facilities should be high priority facilities to improve the indoor air quality and it is important to study the health effects and the airborne bacteria concentration of public facilities including non-culturable bacteria or allergen.

Aerobic Antimicrobial Susceptibility Patterns of Bacteria Isolated from Dogs (개에서 분리된 호기성 병원성 세균의 항생제 감수성)

  • Hee Yoo;Park, Se-Won;Hwang, Cheol-Yong;Youn, Hwa-Young;Han, Hong-Ryul
    • Journal of Veterinary Clinics
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    • v.19 no.3
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    • pp.303-311
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    • 2002
  • Isolation and identification of causative microorganisms and susceptibility testing are important in selecting appropriate antimicrobial agent. The purpose of this study was to determine the antimicrobial susceptibility patterns and identification of bacteria for the selection of a therapeutic antibiotic agent for treatment. Specimens were cultured aerobically from dog patients brought to the veterinary medical teaching hospital of Seoul National University between July 1999 and September 2000. A total of 157 isolates were from skin(63), urine(45), ear canal(31) and conjunctiva(18). The result is that the most common organisms isolated from dog patients were S. intermedius was the most common isolates from the skin, ear canal, and conjunctiva. E. coli was the most common isolated from urine. Most of gram-positive isolates were resistant to ampicillin(80.6%), erythromycin(68.8%), penicillin(86.2%), tetracycline(89.2%). Otherwise most of gam-negative isolates were resistant to ampicillin(73.4%), trimethoprim-sulfa(53.3%). E. coli was resistant to ciprofloxacin(61.5%), piperacillin (69.2%). Antimicrobial susceptibility pattern by the sampling site was not remarkably different except 5. aureus isolated from urine.

총산폐자원의 징생물학적 이용에 관한 연구 (제3보) 섬유소자화 세균의 기질로서 볏짚의 전처리 효과

  • Bae, Moo;Kim, Byung-Hong
    • Proceedings of the Korean Society for Applied Microbiology Conference
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    • 1974.06a
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    • pp.124.2-124
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    • 1974
  • 전보에서 분리ㆍ등정한 섬유소 분해력이 강한 세균을 이용하여 볏짚에서 단세포단백을 생산할 목적으로 각종 알카리에 의한 볏짚의 전처리 효과를 살펴보았다. 즉, 규정농도의 알카리 용액에 24시간 실온에서 침지하여 중성이 될때까지 수세하고 건조시켜 무기염 용액에 4%첨가하여 5일간 진탕 배양한 후 균체량 증가 및 기질의 감소를 측정하여 다음과 같은 결과를 얻었다.(중략)

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Symbiotic Biodegradation of Furfural by Some Bacteria (수종의 세균공존에 의한 Furfural의 분해)

  • 한홍의;홍순우;하영칠
    • Korean Journal of Microbiology
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    • v.17 no.4
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    • pp.198-202
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    • 1979
  • Three Pseudomonas spp. and one Zoogloea sp. which could docompose the furfural were isolated from the enriched undefined cultures of soil. In the decompositioin of furfural thyey demonstrated protocooperation and synergism, utilizing 2-furoic acid a certain sudstance fural was subject to complete oxidation, which resulted in decolorization by mutural interactions. The decomposition was more efficient in mixed cultures than in a single culture.

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Development of UV sterilizer for tissues for human skin contact (UV lamp를 사용한 피부 접촉용 지류 살균기 개발)

  • Kim, Seung-Jun;Choe, Ji-Seong;Yang, Won-Gyun;Ju, Jeong-Hun
    • Proceedings of the Korean Institute of Surface Engineering Conference
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    • 2009.05a
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    • pp.248-249
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    • 2009
  • 자외선 램프를 이용한 살균기는 고전압 방전과 달리 오존의 발생을 최소화 하면서 짧은 시간에 원하는 물체를 살균할 수 있는 장점이 있다. 본 연구에서는 인체의 피부에 직접 접촉하는 티슈들의 포장 상태에서 세균의 밀도를 조사하고 그 결과 살균이 필요한 수준이라는 것을 파악한 다음, 공중 화장실용 공동 티슈 공급기에 적합한 살균기를 설계, 제작하고 그 효과를 세균 배양 실험을 통하여 확인하였다.

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A study of newly recorded genus and species for aerial cyanobacteria Wilmottia murrayi(Oscillatoriales, Cyanobacteria) in Korea (기중성 남세균, Wilmottia murrayi (Oscillatoriales, Cyanobacteria)의 국내 미기록속 및 미기록종에 대한 연구)

  • Lee, Nam-Ju;Seo, Yoseph;Ki, Jang-Seu;Lee, Ok-Min
    • Korean Journal of Environmental Biology
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    • v.37 no.3
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    • pp.260-267
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    • 2019
  • Two aerophytic cyanobacteria from the rockwall of Haje port located in Geum river, Korea, were isolated in unialgal cultures and submitted to polyphasic evaluation. The filaments of the populations presented solitary or several to many parallel arranged. The straight trichomes were not attenuated with rounded apical cell. Phylogenetic analyses based on 16S rDNA sequences indicated that these populations formed the same clade with Wilmottia murrayi and had 99% or greater DNA similarity. Through the ultrastructure of the TEM, these populations showed parietal thylakoid arrangement, which coincides with family Coleofasciculaceae. From the above results, we reported the newly recorded genus Wilmottia, and species W. murrayi in Korea.

Incidence of the chlamydia conjunctivitis in the newborn period (신생아에서의 Chlamydia결막염의 빈도에 관한 관찰)

  • Shin, Son-Moon;Kang, Mi-Hwa
    • Journal of Yeungnam Medical Science
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    • v.6 no.2
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    • pp.23-28
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    • 1989
  • After application of silver nitrate on every newborn, the incidence of gonococcal conjunctivitis was markedly decreased. But recently neonatal conjunctivitis due to chlamydia infection is increasing, so clinical observation was made on 26 newborn infants who showed eye discharge from June 1st to August 31st 1989. The results were as follows. 1. The incidence of chlamydia infection among neonatal Conjunctivitis was 34.6%. 2. The most common age at diagnosis was 6-15days of life and there was no sexual prepondrance. 3. There was no significant difference on clinical symptoms between chlamydia conjunctivitis and other Conjunctivitis. 4. Of 26 infants examined. 16 cases revealed no growth on routine bacterial culture. Of the organism cultured, P. aeruginosa was the most common agent(19.2%) and followed by S. aureus(11.5%) and S. epidermidis(7.6%). In one case of chlamydia I conjunctivitis, there was concurrent S. aureus infections. 5. On this study, Giemsa stain did not give significant diagnostic aid of chlamydia conjunctivitis.

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Screening for Phyllospheral Antagonistic Microorganisms for Control of Red-pepper Anthracnose (Collectotrichum gloeosporioides) (고추탄저병(Colletotrichum gloeosporioides) 방제를 위한 엽권 길항미생물의 탐색)

  • Paik, Su-Bong;Kim, Dong-Woo
    • The Korean Journal of Mycology
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    • v.23 no.2 s.73
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    • pp.190-195
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    • 1995
  • For the screening of biocontrol agents against red-pepper anthracnose (Colletotrichum gloeosporioides Penz) 248 isolates of bacteria, 51 of fungi and 30 of yeasts were obtained from phyllospere of medicinal plants. Of isolated microorganisms, four bacterial isolates, KB6, KB12, KB13 and KB14 were highly antagonistic to C. gloeosporioides than the others through dual culture test on potato dextrose agar (PDA). Among the four bacterial isolates, culture filtrate of the isolate KB12 showed the highest inhibition of C. gloeosporioides on PDA. The culture filtrates of four isolates controlled anthracnose on the red fruits, but not on the green fruits. In the living bacterial cell test, high control effect was observed both on the red and the green fruits. In the biochemical test, all isolates were identified as Bacillus subtilis.

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