• Title/Summary/Keyword: Clostridium Perfringens

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Screening of Bacteriocin-producing Bacillus Strains Isolated from Domestic Animal Feces for Antagonistic Activities against Clostridium perfringens

  • Han, Sun-Kyung;Choi, Hyun-Jong;Lee, Sang-Myeong;Shin, Myeong-Su;Lee, Wan-Kyu
    • 한국축산식품학회지
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    • 제31권3호
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    • pp.405-412
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    • 2011
  • The purpose of this study was to isolate and characterize bacteriocin-producing bacteria against Clostridium perfringens from domestic animals to determine their usefulness as probiotics. The feces of cattle and chicken were used as sources to isolate bacteriocin-producing bacteria using the spot-on-lawn method. In total, 900 bacterial stains were isolated from domestic animal feces, and 19 strains were finally selected after determining the inhibitory activity against the pathogenic indicator C. perfringens KCTC 3269. Eighteen strains of Bacillus subtilis and one strain of Brevibacillus parabrevis were identified by 16s rRNA sequencing. Most of the bacterial strains isolated were resistant to 0.5% bile salts and remained viable after 2 h at pH 3.0. Additionally, some B. subtilis strains showed strong inhibitory activity against Listeria monocytogenes. We isolated and screened B. subtilis strains CB 153 and CB 189 from cattle and B. subtilis MSC 156 and B. parabrevis MSC 164 from chickens using probiotic selection criteria such as inhibition activity against C. perfringens and tolerance to acid and bile salts. The isolated bacteriocin-producing bacteria and/or bacteriocin have the potential to be used as probiotics in the livestock industry.

닭의 괴사성 장염 및 건강 계군에서 분리한 Clostridium perfringens의 신속동정 및 독소형 분석 (Rapid identification and toxin type analysis of Clostridium perfringens isolated from healthy or diseased stocks with necrotic enteritis in chichen)

  • 김홍집;강문일;정운익
    • 대한수의학회지
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    • 제37권1호
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    • pp.137-146
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    • 1997
  • About Clostridium perfringens causing clinically necrotic enteritis or isolated from the intestinal contens of healthy chicken, We examined the usefulness of a rapid identification method by gas-liquid chromatography as well as the types of toxins. For this study, there were used 169 chickens including 116 broilers, 27 layers and 26 breeders which collected from 9 healty flock and 21 diseased flock showing necrotic enteritis. Among them, Cl perfringens was isolated from 30 chickens(17.8%) including 7 breeders(26.9%), 5 layers(18.5%) and 18 broilers(15.5%). Isolation of Cl perfringens was mainly from ceca (100%) and followed by small intestines(70.0%) and livers(16.7%), respectively. Average concentration of the pathogen in intestinal contents was $10^{3.8}CFU/g$ in cases occuring necrotic enteritis and on the contrary $10^{3.8}CFU/g$ in healthy cases. All isolates tested showed the same characterstics in biochemical tests compared to those in standard strain. Analysis of gas-liquid chromatography to volatile fatty acids produced by Cl perfringens in PYG broth showed the typical peaks of acetic and butyric acids compatible with the standard chromogram and was confirmed as a effective and reliable tool for rapid identification of the bacteria. Toxin types of 30 strains were mostly classified in A type(26 isolates) and the rest in C type(2 isolates) and unidentifed type(2 isolates). All the isolates were highly susceptible to amphicillin, amoxicillin and cephalothin.

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장내 항세균성 낙산균의 분리 및 특성 (Isolation and Characterization of a Butyric Acid Bacterium from Infant Feces)

  • 곽종휘;이정치;김태한;정필근;이금기
    • 한국미생물·생명공학회지
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    • 제17권1호
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    • pp.56-62
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    • 1989
  • 유아 분변으로부터 장내 병원균인 Cl. perfringens ATCC 13124에 대하여 생육저해 작용을 가지는 낙산 생성균주 1D-1113을 분리하였다. 1D-113 균주는 Cl. butyricum으로 동정되었다. 임상적인 응용을 위하여 1D-113 균주의 포자형성과 포자의 성질을 조사하였다. SM배지에서 12시간 배양 후 포자를 형성하기 시작하여 36시간까지 포자를 형성하였으며, 이때 포자형성율은 95% 이상이었다. 또한 시판의 유포자성 낙산균과 유산균 정장제와 비교해 볼 때 제제화한 1D-113균주의 포자는 양호한 열내성, 보존성 및 내산성을 가지고 있었다.

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Bactericidal Efficacy of a Disinfectant Composed of Povidone-iodine Against Clostridium Perfringens and Mycobacterium Fortuitum

  • Cha, Chun-Nam;Park, Eun-Kee;Cho, Youyoung;Yoo, Chang-Yeul;Tutkun, Engin;Kim, Suk;Lee, Hu-Jang
    • 한국식품위생안전성학회지
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    • 제30권1호
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    • pp.109-114
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    • 2015
  • Clostridium perfringens (C. perfringens)와 Mycobacterium fortuitum (M. fortuitum)은 동물과 사람에서 심각한 질병과 관련이 있는 세균들로 알려져 있다. 본 연구에서는, povidone-iodine을 주성분으로 하는 소독제의 살균효과를 C. perfringes와 M. fortuitum을 대상으로 평가하였다. 소독제의 살균효과는 배지희석법을 이용하여, 대상 세균들을 $4^{\circ}C$에서 소독제에 30분 동안 노출시킨 다음, 가장 낮은 소독제의 살균 희석배수를 결정하였다. 소독제는 경수와 유기물로 희석하였으며, 경수 조건에서, C. perfringes와 M. fortuitum에 대해 효과적인 소독제 희석배수는 각각 50과 80배이었다. 유기물 조건에서는, C. perfringes와 M. fortuitum에 대해 효과적인 소독제 희석배수는 모두 15배로 나타났다. 이상의 결과로 부터, povidone-iodine을 주성분으로 하는 소독제는 C. perfringes와 M. fortuitum에 대해 살균효과를 갖는 것으로 확인되었으며, C. perfringes와 M. fortuitum에 의한 질병의 확산을 방지하기 위해 사용될 수 있을 것으로 사료된다.

Inhibition of Clostridium perfringens using Bacteriophages and Bacteriocin Producing Strains

  • Heo, Sunhak;Kim, Min Gon;Kwon, Mirae;Lee, Hee Soo;Kim, Geun-Bae
    • 한국축산식품학회지
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    • 제38권1호
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    • pp.88-98
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    • 2018
  • In this study, we isolated and characterized a bacteriocin-producing strain and two bacteriophages (P4, A3), showing antimicrobial effects against Clostridium perfringens, from chicken and swine feces by the spot-on-the lawn antagonism method. The selected strain was identified as Streptococcus hyointestinalis by 16S rRNA gene sequencing. The bacteriocin from the isolated strain exhibited strong inhibitory activity against four strains of C. perfringens and all the tested strains of Listeria monocytogenes, and the bacteriocin were highly heat- and pH-stable even at pH 2, pH 10 and $121^{\circ}C$ for 15 min. We also evaluated the combined effects of the isolated bacteriocin and phages. Combining the phage treatments and bacteriocin resulted in a synergetic effect compared with the phage or the bacteriocin alone. In addition, during the probiotic test, the bacteriocin-producing S. hyointestinalis B19 strain reduced the population of C. perfringens significantly. Treatment with S. hyointestinalis B19 and a cocktail of lytic bacteriophages eradicated the C. perfringens KCTC $3269^T$, completely. Consequently, the isolated bacteriocin and bacteriophages represent candidates for effective biocontrol of C. perfringens, and bacteriocin-producing S. hyointestinalis B19 is a potential probiotic candidate for use in domestic animals.

Toxin Gene Typing, DNA Fingerprinting, and Antibiogram of Clostridium perfringens Isolated from Livestock Products

  • Lee, Seung-Bae;Choi, Suk-Ho
    • 한국축산식품학회지
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    • 제26권3호
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    • pp.394-401
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    • 2006
  • Forty Clostridium perfringens isolates were obtained from twelve animal products, following the examination of eighty six beef, pork, broiler chicken and salami meat products, and eleven milk powder products. There were 21 isolates from salami stored at $25^{\circ}C$, 3 isolates from pork, 4 isolates from beef, 9 isolates from broiler chicken, and 3 isolates from milk powder. Only the cpa gene encoding a toxin among the 5 toxin genes tested (cpa, cpb, etx, iap, and cpe) was detected in all forty isolates, suggesting contamination with C. perfringens type A. DNA fingerprinting analysis using PCR of the tRNA intergenic spacer (tDNA-PCR) and the 16S-23S internal transcribed spacer (ITS-PCR), and randomly amplified polymorphic DNA (RAPD) analysis were attempted to differentiate the isolates. RAPD analysis was the most discriminating method among the three PCR analyses. Isolates from the same products tended to show similar RAPD patterns. Antimicrobial susceptibility tests showed that some isolates from broiler chickens had the same antibiogram with multiple resistance to streptomycin, colistin, and ciprofloxacin. Antibiograms were similar between isolates from the same livestock products, but differed considerably between the products.

Hemorrhagic Enteritis in Two One-month-old Dairy Calves Infected with Beta2-toxigenic Clostridium perfringens and Coccidium

  • Choi, Woojae;Ro, Younghye;Kim, Hoyung;Kim, Eunkyung;Choe, Eunhui;Kim, Danil
    • 한국임상수의학회지
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    • 제34권2호
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    • pp.112-114
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    • 2017
  • Two one-month-old dairy calves which have Eimeria oocysts in their bloody diarrhea died acutely a few days after showing the first clinical signs. At necropsy, hemorrhagic and congestive gastrointestinal organs were observed in both calves, and abomasal ulcerations existed. As a prevalent agent in all of the collected intra-intestinal specimens, Clostridium perfringens was isolated and the strain was identified as type A possessing alpha and beta2-toxins. In these clinical cases, intercurrent infection by C. perfringens type A and Eimeria through contaminated environment may be responsible for acute hemorrhagic enteritis.

2018년 중부지방 일개 대학에서 집단 발생한 클로스트리듐 퍼프린젠스 감염증 (Epidemiological Investigation for Outbreak of Clostridium perfringens Enteritis among Students at a College in 2018)

  • 배은주;황세민;권근용;이무식
    • 농촌의학ㆍ지역보건
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    • 제45권2호
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    • pp.69-78
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    • 2020
  • 2018년 5월 25일 10:00경 세종시 소재 일개 대학교 학생 40여명 정도가 설사 및 구토 증상 등을 주된 증상으로 하는 집단 발생으로 시청콜센터와 보건소를 통해 발생 신고가 접수되었다. 우리는 즉각 역학조사반을 구성(위생과 포함)하여 당일 14:30분에 현장 역학조사를 실시하였다. 역학조사결과, 최종 발생규모는 153명중 86명(56.2%) 등 이었다. 추정위험 노출시간은 전날 12시로, 원인은 체육대회 당일 점심으로 제공된 도시락의 유통·저장 과정에서 오염된 것으로 추정되었으며, 평균잠복기 13시간이었다. 발생은 5월 28일 종결되었으며, 검사결과는 6월 11일 통보되었는데 동정된 세균은 클로스트리듐 퍼프린젠스(Clostridium perfringens)이었다. 이러한 조사결과를 통하여 클로스트리듐 퍼프린젠스에 의한 식중독이 집단 급식, 도시락의 유통 및 저장과 전달과정에서 오염 가능성과 발생이 가능함을 확인하였다. 세종특별자치시의 검사의뢰전달체계의 구축이 필요하고, 향후 보건환경연구원 등 지역지원 임상병리 검사기관의 설치운영이 시급한 과제이다. 아울러 충분한 검사 예산과 이에 따른 신속한 검사지원체계의 구축이 필요하다. 클로스트리듐 퍼프린젠스에 의한 식중독이 집단 급식, 즉 도시락의 유통 및 저장과 전달과정에서 오염 가능성과 발생이 가능함을 확인하였다.

비육 우의 Clostridium perfringens D 형 장독 혈증에 의한 폐사 (Sudden Death Caused by Clostridium perfringens Type D Enterotoxemia in Feedlot Cattle)

  • 장성준;도선희;기미란;홍일화;박진규;조유정;;;박상준;김태환;곽동미;정규식
    • 생명과학회지
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    • 제20권5호
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    • pp.639-643
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    • 2010
  • 비육우의 공장, 회장 및 결장의 특징적 괴사 출혈성 장염 증상은 폐사 증후군과 관련이 있는 것으로 인식되고 있다. 특히 젖먹이 송아지들이 폐사 증후군에 가장 영향을 받는데, 포유시 송아지에게 과식을 시키거나, 비위생적 초유 급유, 체온 하강 및 스트레스는 장독혈증 발생의 원인들이다. 2006년 7월 중 경북 영천 지역에서 축우의 폐사가 발생하였다. 식욕부진, 의기소침, 간헐적인 설사 및 경미한 호흡 곤란을 제외하고는 특별한 임상 증상은 없었으나, 조직학적 소견에 의하면, 심장, 신장, 간, 비장 및 임파선을 포함한 각종 기관에서 globular leukocytes 의 침윤뿐 아니라 핵내 봉입체가 현저하게 나타났다. 비장과 림프조직에서는 림프 괴사와 림프구 괴사로 인한 'starry sky appearance'를 나타내었다. 소장 점막 하에서는 다량의 globular leukocytes와 호산 구의 침윤과 함께 호 염기성 세포 집단이 관찰되었다. 봉입체가 있는 소장 조직의 단면은 그램 염색에 대해 조직 화학적으로 양성 반응을 나타내었다. 결론적으로, 비축우의 폐사 원인은 조직학적 및 조직화학적 분석 결과를 근거로 Clostridium perfringens D 형균에 의한 장독혈증으로 진단되었다.

Selection of Human-Originated Lactobacillus acidophilus For Production of Probiotics

  • Kim, Wang-June;Hong, Seok-San;Cha, Seong-Kwan
    • Journal of Microbiology and Biotechnology
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    • 제4권2호
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    • pp.151-154
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    • 1994
  • Lactobacillus acidophilus KFRI 233, a strain isolated from human, was selected as a candidate for probiotics due to its excellent growth in MRS broth where no special anaerobic condition is required. Both simultaneous and deferred agar diffusion assays exhibited Lb. acidophilus KFRI 233 to possess an antagonistic effect against Clostridium perfringens. Its antagonistic effect was pH dependent Associative culture of KFRI 233 and Cl. perfringens in broth resulted in maximum 94.04% inhibition of Cl. perfringens. $\beta$-Galactosidase activity of KFRI 233 was higher than other tested strains that are sold as commercial probiotics. Survival of KFRI 233 in pasteurized skim milk (4$^{\circ}C$) and Sherbet mix (-15$^{\circ}C$) after 7 days of storage were 71.9 and 105.5%, respectively.

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