• Pediatric Infection and Vaccine
• /
• 제5권2호
• /
• pp.296-301
• /
• 1998

Flavobacterium species are nonfastidious, oxidase-positive gram-negative rods that do not ferment glucose. These organism are widely distributed in nature and in hospital environments. In past, one of flavobacteria, Flavobacterium indologenes, was treated with non-pathogenic organism. Recently, several investigators have demonstrated the infection of this organism in human. Nowadays, the growth of F. indologenes in specimen should be considered a potential pathogen in infectious patients including neonate, especially in the setting of malignancy and with use of invasive procedures. The resistance of this organism to multiple antibiotics and the high incidence of polymicrobial bacteremia make it difficult to determine optimal therapeutic options. We experienced a case of neonatal bacterial meningitis causing by F. indologenes. So we report this case to evoke more concerns about the infections of this organism in human.

• 한국식품위생안전성학회지
• /
• 제13권4호
• /
• pp.383-387
• /
• 1998

본 연구는 포장두부에서 부패 세균을 분리.동정하고, 부패균주의 생육 특성과 내열성을 조사하여 두부 제조공정의 위생관리를 위한 기초 자료로 제시할 목적으로 수행되었다. 포장두부의 부패에 관여하는 세균을 분리하여 Vitek system을 이용하여 동정한 결과, Strain No. T1은 Enterobacter amnigenus일 확률이 92%, Strain No T2는 Flavobacterium indologenes일 확률이 96%이었다. 이들 균주는 $35^{\circ}C$와 pH6.5일 때 가장 생육이 왕성하였다. Enterobacter amnigenus T1의 내열성을 검토한 결과, $60^{\circ}C$에서 2분 처리하였을 경우 초기보다 56.3%, $70^{\circ}C$에서는 37.8%, $80^{\circ}C$에서는 34.0%, $90^{\circ}C$에서 처리했을 때는 22.2%가 잔존하였고, Flavobacterium indologenes T2 경우는 $60^{\circ}C$에서 2분 동안 처리하였을 때 74.8%, $70^{\circ}C$에서는 65.7%, $80^{\circ}C$에서는 37.3%, $90^{\circ}C$에서 처리했을 경우는 9.3%가 잔존하였다.

• 한국환경과학회지
• /
• 제15권12호
• /
• pp.1185-1191
• /
• 2006

The high surface area polymer, AquaMats$^{circledR}$ was used for the leachate purification process originated from the Samsan Dong Landfill in Ulsan Metropolitan City. And then, three species of dominant microbes were isolated and identified from AquaMats$^{circledR}$. Gram staining revealed these microbes to be Gram-negative rod strains: They were identified as Agrobacterium radiobacter, Pseudomonas cepacia, Flavobacterium indologenes. All they showed no growth on media in which the leachate was added alone, but a rapid proliferation rate on media with yeast extract as nutrient requirements.

• Journal of Microbiology
• /
• 제38권2호
• /
• pp.99-104
• /
• 2000

Hydrogen peroxide has been used in cleaning the piping of an advanced high-purity water system that supplies ultra-high purity water (UHPW) for 16 megabyte DRAM semiconductor manufacturing. The level of hydrogen peroxide-resistant bacteria in UHPW water was monitored prior to and after disinfecting the piping with hydrogen peroxide. Most of the bacteria isolated after hydrogen peroxide disinfection were highly resistant to hydrogen peroxide. However, the percentage of resistant bacteria decreased with time. The hydrogen peroxide-resistant bacteria were identified as Micrococcus luteus, Bacillus cereus, Alcaligenes latus, Xanthomonas sp. and Flavobacterium indologenes. The susceptibility of the bacteria to hydrogen peroxide was tested as either planktonic cells or attached cells on glass. Attached bacteria as the biofilm on glass exhibited increased hydrogen peroxide resistnace, with the resistance increasing with respect to the age of the biofilm regrowth on piping after hydrogen peroxide treatment. In order to optimize the cleaning strategy for piping of the high-purity water system, the disinfecting effect of hydrogen preoxide and peracetic acid on the bacteria was evaluated. The combined use of hydrogen peroxide and peracetic acid was very effective in killing attached bacteria as well as planktonic bacteria.