• Korean Journal of Microbiology
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• v.26 no.1
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• pp.60-66
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• 1988

Dynamics of bacterial communities and its colonization under aerobic gemp retting were observed in air lift fermentor as a closed system, unlike conventional hemp retting as an open system. Dried hemp which was harvested in both 1986 and 1987 was retted at room temperature. Predominant community was facultatively anaerobic Gram-negative rods, and its density was increased from $3.0\times 10^{7}$ cells/ml to $9.0\times 10^{8}$ cells/ml. The density of facultatively nanerobic Gram-positive fods was maintained at the lovel of $5.0\times 10^{6}$ cells/m, and this Gram-positive bacterial community was not participated in retting. In the Gram-negative bacterial community during the retting, five types of colonieswere developed at early stage of pH7.0-8.0, and thereafter, only three types were colonized till later stage, shich were identified as pectolytic strain Erwinia salicis, Erwinia tracheiphila and Enterobacter agglomerans. A community of facultatively Gram-negative rods was mainly proliferated in stems and dispersed into liquor after 6-8 hours. Retting was terminated within 70-80 hours.

• Applied Biological Chemistry
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• v.32 no.3
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• pp.303-308
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• 1989

A bacterium synthesizing extracellular polysaccharide was isolated from soil and identified as Enterobacter agglomerans. The polysaccharide was found to be glucan polymer containing glucose and galactose in a molar ratio of 1 : 1.1. The aqueous solution was very viscous. The viscosity of 1% solution was 264 mPa.s. at $42\;sec^{-1}$ and yield stress was 4.89 Pa. The polysaccharide solution did not have thermal stability but pH and salt stability.

• 한국신재생에너지학회:학술대회논문집
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• 2006.06a
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• pp.470-473
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• 2006

생물학적 수소생산을 위해 토양으로부터 새로운 균주인 Enterobacter asburiae SNU-1이 분리되었다 이 균주의 경우 다른 균주와는 달리 미생물 생장과 수소생산 phase가 분리되는 특징을 가지고 있다. 이러한 정지기에서의 수소생산은 미생물 내에 존재하는 formate hydrogen lyase를 사응하여 formate 분해에 의해 일어난다. 따라서 본 연구에서는 미생물 생장 phase에서 formate hydrogen lyase가 발현된 미생물을 얻고 이를 formate만 있는 배지에서 수소생산 가능성에 대한 연구를 수행하였다. 앞으로 formate분해를 위한 조건을 최적화한다면 높은 수소생산성을 나타낼 것이라 기대된다. 또한, 이는 formate로부터 미생물촉매를 이용하여 수소를 생산하고 이를 연료전지로 공급하는 생물학적 reformer로써의 이용 가능성을 보여준다.

• Food Science and Biotechnology
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• v.17 no.6
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• pp.1368-1371
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• 2008

In this study, 50 rump samples of raw beef obtained from local Korean supermarkets were analyzed to survey microbial distributions. As results, mesophilic microorganisms ranged from $(1.4{\pm}0.01){\times}10^2$ to $(1.6{\pm}0.05){\times}10^5\;CFU/g$, and total coliforms ranged from 0 to $(1.3{\pm}0.04){\times}10^4\;CFU/g$. Major foodborne pathogens, including Listeria monocytogenes, Escherichia coli O157:H7, and Salmonella spp., were not found among the samples. However, Staphylococcus aureus was isolated with 4% frequency. Other isolated microorganisms included Enterobacter amnigenus (4%), Enterobacter cloacae (24%), E. coli (24%), Listeria innocua (8%), Staphylococcus saprophyticus (56%), Staphylococcus xylosus (10%), and Staphylococcus warneri (8%).

• 한국생물공학회:학술대회논문집
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• 2005.04a
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• pp.271-271
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• 2005

• 한국생물공학회:학술대회논문집
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• 2005.10a
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• pp.426-427
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• 2005

• Proceedings of the Microbiological Society of Korea Conference
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• 2007.05a
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• pp.99-101
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• 2007

• Proceedings of the Zoological Society Korea Conference
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• 1996.10a
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• pp.200.1-200
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• 1996

No Abstract, See Full Text

• Proceedings of the Zoological Society Korea Conference
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• 1997.10b
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• pp.256.1-256
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• 1997

• Proceedings of the Korean Society of Life Science Conference
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• 2002.03a
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• pp.61-61
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• 2002