• 대한약학회:학술대회논문집
• /
• 대한약학회 2003년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.1
• /
• pp.227.2-227.2
• /
• 2003

In the situation of high bacterial resistance to antibiotics in Korea, to assess diffusion of methicillin-resistant Staphylococcus aureus (MRSA) and levels of bacterial resistance to antibiotics in community, we monitored antibiotic resistance of S. aureus isolates from healthy volunteers of community. (omitted)

• 한국식품영양과학회지
• /
• 제31권4호
• /
• pp.572-577
• /
• 2002

Gluconacetobacter persimmonus KJ145를 사용하여 bacterial cellulose 생산에 최적 배지와 배양조건을 설정하였다. Bacterial cellulose를 생성하기 위한 최적배지로는 HS배지보다는 천연사과과즙이 더 우수한 경향을 나타내었으며, 사과과즙에 각종 탄소원을 보강한 결과 탄소원으로 pyruvate가 적합하였다. 탄소원의 농도를 조사한 결과, 1%가 적합하였으며, 각종 질소원의 영향을 조사한 결과 CSL이 가장 우수한 결과를 나타내었다. CSL의 농도에 따른 bacterial cellulose의 생산성을 조사한 결과, 10% 농도에서 가장 좋았다. Bacterial cellulose의 생성에 미치는 배지의 초기 pH의 영향을 조사한 결과 pH 6.0에서 최적이었으며,배양온도별 영향을 조사한 결과 35$^{\circ}C$에서 하는 것이 최적이었다. 최적 배양조건에서 배양시간별로 생성되는bacterial cellulose의 양을 조사한 결과 16일간 배양하는 것이 가장 좋았으며, 이 때 생성되는 bacterial cellulose의 생산량은 8.96 g/L으로 비교적 높았다.

• 한국식품저장유통학회지
• /
• 제12권5호
• /
• pp.455-459
• /
• 2005

본 연구에서는 BC를 백설기에 첨가하여 저장 중 품질특성을 조사하였다. 그 결과, bacterial cellulose 0.09%이상 첨가한 백설기가 무첨가구에 비해 저장동안 노화도가 낮게 나타났다. 또한 hardness를 측정한 결과 BC첨가를 첨가한 구간들에서 hardness가 낮게 나타나 노화억제효과가 있었다. 관능검사 결과 거의 모든 평가항목에서 시료들 간의 유의적인 차이가 없었으나, 전반적인 기호도에서 BC를 첨가한 백설기가 더 좋은 것으로 나타났다.

• 식품산업과 영양
• /
• 제6권1호
• /
• pp.10-14
• /
• 2001

• Food Science and Biotechnology
• /
• 제16권2호
• /
• pp.320-324
• /
• 2007

The bacterial diversity in Korean soybean-fermented foods was investigated using a PCR-based approach. 16S rRNA sequences were amplified and cloned from two different soybean-fermented foods such as doenjang (soybean paste), and ganjang (soybean sauce). Staphylococcus equorum (60.6%), Tetragenococcus halophila (21.2%), Leuconostoc mesenteroides (9.1%), Lactobacillus sakei (6.1%), and Bacillus subtilis (3.0%) were detected among clones isolated from soybean paste samples and Halanaerobium sp. (37.5%), Halanaerobium fermentans (37.5%), T. halophila (12.5%), Staphylococcus sp. (6.3%), S. equorum (3.1%), and B. subtilis (3.1%) were detected among clones isolated from soybean sauce. Our approach revealed different bacterial distributions and diversity from those previously obtained using culture-dependent methods.

• 한국식품위생안전성학회지
• /
• 제10권3호
• /
• pp.175-180
• /
• 1995

The distribution of bacteria in kimbab and its ingredients have been investigated. The total bacterial counts were over 3$\times$106/g(n=30) when the kimbabs were delivered to restaurant and it exceeded the legal level 1$\times$106/g defined by the Code of Food Standard in 1991. The gram-negative coliforms were also detected 1.9$\times$105. In order to study the cause of bacterial contamination in kimbabs, the ingredients used in kimbabs were examined. The bacterial counts were found 104-108/gfor kim (laver), 104-108/g for sausage, 104-106/g for boiled-spinach, 103-107/g for carrot, and 104-106/g for Danmuji, respectively. From these results it could be concluded that the bacterial contamination in Kimbabs was caused mainly by the ingredients such as kim, boiled-spinach, carrot, and sausage. Therefore, this suggested that the sanitary manufacture of kim, the storage at refrigerator temperature of the ingredients for kimbabs, and the proper treatment of equipments should be maintained in order to reduce the bacterial contamination for kimbabs. Furthermore, it should be required to obtain the basal data for establishment of the sanitary standard of kim and kimbab.

• Asian-Australasian Journal of Animal Sciences
• /
• 제2권3호
• /
• pp.429-431
• /
• 1989

• 약학회지
• /
• 제51권1호
• /
• pp.1-6
• /
• 2007

The aim of this study was to examine whether administration of glutamine are able to prevent the methotrexate induced gut barrier damage, bacterial translocation, and weight changes. The animals with glutamine were fed with L-glutamine (1.2 and 2.4 mg/kg/day) for 7 days before methotrexate administration (20 mg/kg orally). 48 hour after methotrexate administration, intestinal permeability were measured for an assessment of the gut barrier dysfunction. Also, enteric aerobic bacterial counts, number of gram-negatives in mesenteric lymph node (MLN), liver spleen, kidney and heart were measured for an assessment of the enteric bacterial number and bacterial translocation. Amounts of food intake, body weight changes and organ weight changes of liver spleen, kidney and heart were measured. Methotrexate administration caused body and liver weight loss regardless amounts of food intakes. Methotrexate induced increasing intestinal permeability, enteric bacterial undergrowth and bacterial translocation to MLN, liver and spleen, but not kidney and heart. The supplements with glutamine reduced the intestinal permeability bacterial translocation, and not influences enteric bacterial number, and body and liver weight changes. This study suggested that glutamine might effectively reduce methotrexate induced intestinal damage and bacterial translocation, but not influence body and organ weight loss.

• 한국수산과학회지
• /
• 제48권2호
• /
• pp.151-157
• /
• 2015

This study was conducted to evaluate the effect of lactic acid bacterial fermentation on the antioxidant and anti-inflammatory activity of an edible brown alga, Eisenia bicyclis. Lactic acid bacteria were inoculated into and cultivated in E. bicyclis water extract. The antioxidant activity of the extract was assayed before and following fermentation. Antioxidant activity was determined by assaying the levels of radical scavenging activity against 2,2'-diphenyl-1-picrylhydrazyl (DPPH), hydroxyl radical and alkyl radical. The lactic acid bacterial fermentation of E. bicyclis extract resulted in enhanced antioxidant activity. The greatest enhancement of antioxidant activity was seen in the DPPH radical scavenging assay, in which E. bicyclis extract was fermented by Pediococcus pentosaceus MBP-34 strain for 12 h. This fermented extract also exhibited higher inhibitory activity (96.66%) on nitric oxide production compared with other lactic acid bacterial fermented extracts or raw extract (189.60%). In conclusion, fermentation by bacterial strain is an attractive strategy for developing value-added food ingredients.

• 한국식품위생안전성학회지
• /
• 제31권5호
• /
• pp.380-385
• /
• 2016

사람과 어류에게 감염증을 유발하는 Edwardsiella sp., Streptococcus sp. 및 Vibrio sp. 의 해양 유해세균에 대한 해조류 추출물의 항균 활성을 조사하였다. 연구에 사용된 4종의 식용 해조류 중에서 감태 MeOH 추출물이 본 연구에서 사용 된 6종의 모든 해양 유해세균에 대해 넓은 범위의 항균 활성을 나타내었다. 감태의 MeOH 추출물의 유기용매 분획 추출물들 중에서, EtOAc 분획 추출물이 가장 높은 항균활성을 나타내었으며 6종의 해양 유해세균에 대하여 $128{\mu}g/mL$에서 $256{\mu}g/mL$의 MIC 값을 나타내었다. 또한, HPLC 분석에 의해 감태 EtOAc 분획 추출물에 phlorotannin 화합물인 dieckol이 다량 존재하고 있는 것이 확인 되었다. 결론적으로, 감태 추출물의 phlorotannin 화합물이 여러 유해세균에 대한 강한 항균활성을 나타내는 것처럼, 해양 유해세균에 대해서도 강한 항균활성을 나타내는 것으로 판단된다.