• 한국수산과학회지
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• 제49권6호
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• pp.792-799
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• 2016

We isolated seven tryptamine-producing bacteria from commercial salted and fermented sand lance (Ammodytes personatus) sauces using an L-tryptophan decarboxylating medium. These tryptamine-producing bacteria, identified using an API kit and 16S rRNA analysis, included Lysinibacillus xylanilyticus (one strain), Lysinibacillus fusiformis (four strains), and Staphylococcus epidermidis (two strains). Lysinibacillus spp. produced the highest levels of tryptamine in culture broth containing 0.5% L-tryptophan, compared with 1.0% and 2.0% preparations. After 72 h of incubation, Staphylococcus epidermidis produced the highest levels of tryptamine ($60.50{\mu}g/mL$ and $664.86{\mu}g/mL$) in culture broth containing 2.0% L-tryptophan. While Lysinibacillus spp. comprised the dominant tryptamine-producing bacteria in sand lance sauces, Staphylococcus epidermidis also showed high tryptamine-producing activity. This is the first report on the isolation and identification of tryptamine-producing bacteria in sand lance sauces.

• 한국임상수의학회지
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• 제5권2호
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• pp.73-81
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• 1988

Combinations of EDTA-Tris and gentamicin, oxytetracycline in normal bovine milk were examined for synergistic activities aganist Staphylococcus aureus, Streptococcus agalactiae, Corynebacterium Pyogenes, Escherichia coli, Salmonella dublin, Pseudomonas aeruginosa, and proteus spp. isolated from the milk of acute clinical bovine mastitis. The results were summarized as follows: 1. The minimal inhibitory concentrations of EDTA-Tris and gentamicin, oxytetracycline on Escherichia coli, Salmonella dublin, proteus spp., Pseudomonas aeruginosa, Staphylococcus aureus, and Streptococcus agalactiae were markedly reduced. 2. The significant synergistic effects observed when the microorganisms were reacted with EDTA-Tris and gentamicin, oxytetracycline. These findings were respectively verified by kinetic studies of microbial death, using one-fourth minimal inhibitory concentrations of EDTA-Tris, gentamicin, and oxytetracycline.

• 한국동물위생학회지
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• 제16권2호
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• pp.144-149
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• 1993

This study was conducted to investigate the infectious arthritis on pigs slaughter in eastern Kangweon. During the period of between Feb. and Nov. 1992, 459 pigs were sampled at six abattoirs. Bacterial isolation and identification were perfomed from the arthritic lesions. In addition, drug susceptibility for the major isolated microoganisms were examined. The results obtained were summarized as follows : 1. From arthritic lesions bacteria were most frequently isolated, isolation rate being 21.1%. 2. The bacteria isolated from arthritic lesion, Staphylococcus spp. (33.9%), Coli form(39.3%) were most frequently isolated, while the genera of Mycoplasma were detected less frequently. 3. Antimicrobial drug susceptibility of the major organisms showed that all the isolated bacteria were susceptible to SXT(91.0%), cephalothin(82.5%), but resisted to penicillin and streptomycin.

• 한국임상수의학회지
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• 제28권2호
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• pp.196-203
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• 2011

포도알구균은 아토피 피부염 환자의 피부병변에서 가장 많이 발견되는 세균으로, 이들 균집락의 정도는 사람 아토피 피부염의 임상증상 악화요인으로 알려져있다. 이에 본 연구에서는 개 아토피 피부염 환자의 피부에서 포도알구균의 존재를 확인하고, 이들 균주가 생산하는 외독소 유형을 분석하여 개 아토피 피부염 환자의 임상증상과의 연관성을 알아보았다. 79마리의 개 아토피 피부염 환자 중 91.1%인 72마리에서 포도알구균이 검출되었으며, 이 중 62마리에서 Staphylococcus pseudintermedius가 가장 높은 빈도로 확인되었다. 외독소 유전자 분석에서는 69.4%인 50마리에서 1가지 이상의 외독소 유전자를 포함하였고, 이들 중 56%인 28마리에서 2가지 이상의 다른 외독소 유전자를 가지고 있는 것으로 나타났다. 개 아토피 피부염 환자를 포도알구균의 존재 유무에 따라 분류하였을 때, 임상증상 점수의 차이에 통계적인 의미는 없었지만 (P=0.598), 외독소 유무에 따라 임상증상 점수를 비교하였을 때는 의미있는 차이를 보였다 (P=0.028). 또한 외독소 유형에 따라 분류하였을 때 외독소 중 SED와 exfoliative toxins에서 임상증상에 의미있는 차이를 보였으며 (P<0.05), 외독소 유무에 따라 분류하였을 때는 임상증상 점수 중 특히 발적과 구진/농포에서 의미있는 차이를 보였다 (P<0.05). 이와 같은 결과를 통해 개 아토피 피부염에서 포도얄구균이 생산하는 외독소가 개 아토피 피부염의 증상악화와 관련이 있는 것으로 사료된다.

• 한국동물위생학회지
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• 제38권3호
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• pp.167-171
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• 2015

Pathogenic microorganisms were monitored on the chicken carcasses in slaughterhouse of Jeonbuk area. It was conducted to evaluate the microbiological quality on 204 chicken carcasses. Staphylococcus (S.) aureus was isolated in largest number and its ration was 41.2%, Salmonella spp. 6.4%, Campylobacter (C.)jejuni 7.4%, C. coli 7.4%. Serotype of Salmonella (S.) spp. was identified as S. Infantis 46.1%, S. Enteritidis 23.1%, S. Typhimurium 7.7%, S. Montevideo 7.7%. In breed chickens, Salmonella spp. was detected broiler 4.1%, white semi-broiler 8.0% Korean native chicken 12.0%. C. jejuni was isolated broiler 7.4%, white semi-broiler 12.0%, Korean native chicken 0%, C. coli, broiler 7.4%, white semi-broiler 0%, Korean native chicken 18.1% and S. aureus, broiler 38.8%, white semi-broiler 40.0%, Korean native chicken 51.5%.

• 대한미생물학회지
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• 제9권1호
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• pp.19-24
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• 1974

During March to October 1973 at National Medical Center, one thousand four hundred sixty four pathogens that exclude penicillin sensitive organisms such as gonococcus, pneumococcus, streptococcus; ampicillin sensitive H. influenzae and gentamicin sensitive pseudomonas spp, were isolated. These strains identified as follows: Sta. aureus 399 E. coli 359 Sta. epidermidis 183 Klebsiella spp 171 Proteus spp 103 B. anitratum 80 Salmonella spp 68 Enterococcus 53 Shigella spp 48 In general, Sta. epidermidis is regarded as nonpathogen, however, author included pure culture of this bacteria in this study. 1. High susceptibility to staphylococcus reveals cephalosporin, methicillin, gentamicin & leucomycin. 2. Ampicillin is only one susceptible antibiotic to Enterococcus. 3. Cephalosporin and gentamicin reveal susceptible antibiotics to E. coli. 4. Gentamicin is only one susceptible antibiotic to Klebsiella spp. 5. Gentamicin & carbenicillin reveal moderately susceptible antibiotics to Proteus spp. 6. There is no susceptible antibiotic to B. anitratum. 7. About thirty percent strains of salmonella are resistant to chloramphenicol. 8. Carbenicillin, cephalosporin & gentamicin reveal susceptible to shigella spp. 9. Multiple resistant rate to more than two antibiotics which includes tetracycline are as follows. Sta. aureus 56.5% E. coli. 80.9% Shigella spp 93.8%

• 한국동물위생학회지
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• 제27권1호
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• pp.7-15
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• 2004

For measuring general bacterial count and Escherichia coli count, the standard plate count was used to conduct a test on 113 cases of pork carcass surfaces from slaughterhouses in Incheon area from January to February 2003. And Salmonella spp, Staphylococcus aureus and Listeria monocytogenes was used to conduct a test on 68 cases of pork carcass surfaces and 76 cases of feces, that is to say, a total of 144 cases. The results were obtained as follows: In the case of general bacterial count, 29 cases(25.7%) were in the range of 100∼999 and 62 cases(54.9%) were in the range of 1,000∼9,999 and 22 cases(19.4%) were in the range of 10,000∼99,999. Meanwhile as regards E coli count, 22 cases(19.4%) were in the range of 1∼9 and 69 cases(61.2%) were in the range of 10∼99 and 22 cases(19.4%) were in the range of 100∼999. On 68 cases of pork carcass surfaces, 7 strains(10.2%) of Salmonella spp, and 12 strains(17.6%) of S aureus were detected and 27 strains(39.7%) of L monocytogenes, respectively. As for the detected Salmonella spp, 6 strains of the B group, 3 strains of S enterica subsp salame and 2 strains of S typhimurium were detected, respectively. On 76 cases of feces, 14 strains(18.4%) of Salmonella spp, and 15 strains(19.7%) of L monocytogenes and 14 strains(18.4%) of S aureus were detected respectively. As for the detected Salmonella spp, 6 strains of the B group, 4 strains of S derby and 8 strains of the C group, 5 strains of S rissen were detected, respectively. All of 42 strains of L monocytogenes were type 1. As a result of conducting a toxin test on the detected S aureus, all of 26 strains were found to be non-toxin.

• KSBB Journal
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• 제20권3호
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• pp.228-232
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• 2005

본 연구에서는 우리나라 민속약이나 한방의 약재로 널리 사용되어 온 참쑥 (Artemisia mongolica fishcher)으로부터 추출한 쑥 추출물이 포도상구균 (Staphylococcu aurues)과 유산균 (Lactobacillus spp.)에 대해 선택적 저해 효과를 갖는지 조사하였다. 우선 항균 활성 실험을 통해 포도상구균을 저해하는 우수한 항균력을 가진 유산균 7균주를 선별하였다. 그리고 쑥을 추출한 용매의 종류, 농도 그리고 추출시간을 달리하여 쑥 추출물의 최적 농도 조건을 결정하였다. 생존율을 측정하기 위해 배양액에 각각 3일 동안 용매 $100\%$ (아세톤, 에탄올, 메탄올)로 추출한 쑥 추출물을 $17\%$ 첨가하였고, 이때 항균 활성 있는 유산균 KLB 224은 배양 48시간까지 생존하였다. 그러나 포도상구균은 동일한 조건에서 모두 사멸되었다. 또한 주사전자현미경 관찰을 통해 쑥 추출물이 세포 형태에 미치는 영향을 확인하였다. 그 결과, 포도상구균은 세포 형태가 심하게 손상되었지만 유산균은 저해를 받지 않고 세포형태를 유지함을 관찰하였다.

• 한국동물위생학회지
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• 제35권2호
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• pp.99-104
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• 2012

Otitis externa (OE) is a frequent disease in the ear canals of dogs. To identify the pathogens causing OE in dogs and to determine their antimicrobial resistances, specimens were collected from animal hospitals in Daejeon. The isolates were examined by morphological and biochemical tests, 16S rRNA analysis and antimicrobial susceptibility tests. We analyzed correlation between the isolated pathogens and external factors of dogs such as breed, age, gender, ear mite, hair in ears and experience with antibiotic therapy. Thirty three strains of bacteria were isolated from 26 of the 68 heads of dogs with OE. The most isolated bacteria were Enterococcus faecalis (E. faecalis) followed by Staphylococcus aureus (Sta. aureus), Sta. pseudointermedius, E. faecium, E. avium and Streptococcus canis (Strep. canis) in order of frequency of occurrence. Isolation frequency of Enterococcus spp. and Staphylococcus spp. were 51.5% and 45.5%, respectively. E. faecalis and E. faecium isolates showed VanB phenotype, which is resistant to vancomycin but sensitive to teicoplanin were 58% and 25%, respectively. Nine isolates among total twelve isolates of E. faecalis were isolated from the dogs treated with antibiotics. There was no methicillin-resistant Sta. aureus (MRSA), but were MR-Sta. pseudointermedius (MRSP) (57.1%) and vancomycin-resistant (VR)-Sta. pseudointermedius (14.3%) (VRSP) showing VanB phenotype. However, vanA, vanB and vanC genes were not detected in VR isolates from the dogs. Taken together, VR-Enterococcus spp. (VRE) is one of the major pathogens in domestic animals, as well as community-and hospital-acquired infection.

• 한국잡초학회지
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• 제15권1호
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• pp.63-72
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• 1995

제초제(除草劑) Napropamide의 분해능(分解能)이 뛰어난 균주(菌株)를 선발(選拔)하고 그의 분해특성(分解特性)을 구명(究明)할 목적(目的)으로 농약(農藥) 무처리토양(無處理土壤)으로부터 세균(細菌)을 분리(分離)한 후(後) 이들 균(菌)을 Napropamide 함유(含有) NB배지(培地)에 접종(接種)하여 생존력(生存力)과 Napropamide 분해능(分解能)을 조사(調査)하였으며, 분해능(分解能)이 우수(優秀)한 세균(細菌)에 대해 Napropamide를 탄소원(炭素源) 혹은 질소원(窒素源)으로서의 이용여부(利用與否)와 반복처리(反覆處理)에 의한 세균(細菌)의 Napropamide 분해양상(分解樣相)을 조사(調査)하였는 바 그 결과는 다음과 같다. 공시토양(供試土壤)인 식양토(埴壤土)에서 분리(分離)한 세균(細菌)은 그람양성균(陽性菌) 및 그람음성균(陰性園)이 각각(各各) 4속(屬) 10균주(菌株)씩이었고, 이들 세균(細菌)의 Napropamide에 대한 생존력시험(生存力試驗)에서 공시균주(供試菌株) 모두 100ppm에서는 활발(活撥)하게 증식(增植)되었고 1500ppm까지 생존력(生存力)이 뛰어난 균주(菌株)는 Staphylococcus속(屬) 2균주(菌株), Corynebacterium속(屬) III, 기타(其他) 속(屬) II이었다. 공시균주중(供試菌株中) 20%이상(以上) Napropamide 분해능(分解能)을 가진 세균(細菌)은 Staphylococcus속(屬) II와 Actinobacillus속(屬) I이었고, 이들 두 균주(菌株)는 Napropamide를 단일(單一) 질소원(窒素源)으로서는 이용(利用)하지 못하였으나, Staphylococcus속(屬) II가 Napropamide를 단일(單一) 탄소원(炭素源)으로 이용(利用)하는 것으로 나타났다. Napropamide의 반응처리(反覆處理)에 따른 Staphylococcus속(屬) II의 공시약제(供試藥劑)의 분해(分解)는 1회처리(回處理)에서 급속(急速)히 분해(分解)되었고 2회연용처리(回連用處理) 후(後)에는 분해(分解)가 지연(遲延)되었으나 3회연용처리(回連用處理)에서는 다시 급속(急速)한 분해(分解)가 일어났다.