Salmonella균과 대장균에 대하여 길항작용을 나타내는 bacillus species의 분리

• 영문명: Isolation of bacillus species displaying antagonistic activity towards salmonella species and escherichia coli
• 발행기관: 한국예방수의학회
• 저자명: 최철순(CS Choi) 정영석(YS Chung) 김원용(WY Kim) 정상인(SI Chung) 정인성(IS Chung) 이원규(WG Lee)
• 간행물 정보: 『Korean Journal of Veterinary Public Health』Vol.23, No.4, 261~270쪽, 전체 10쪽
• 주제분류: 의약학 > 기타의약학
• 파일형태: PDF
• 발행일자: 1999.12.30

영문 초록

Bacillus spp. displaying antagonistic activity against Salmonella enteritidis, S. typhimurium, S. gallinarum, S. pullorum and Escherichia coli that cause diarrhea and sepsis in animals were isolated. Antagonistic properties of Bacillus spp. towards Salmonella spp. and E. coli were demonstrated by the inhibition zone (mm) around giant colony of spot-overlay co-culture. Of 11 Bacillus species tested, two species, B. circulans and B. subtilis, displayed antagonistic properties. Of 4 strains of B. circulans tested, two strains, HD 7320 and 7321 isolated from soybeans (referred to as B. circulans singokriensis) displayed antagonistic activities towards S. enteritidis (6.4mm/6.0mm), S. gallinarum (11.3mm /11.5mm), S. pullorum (5.5mm /6.0mm) and E. coli (1.6mm/1.8mm) but not towards S. typhimurium. Of 8 strains of B. subtilis examined, five strains displayed antagonistic properties: product I 97806-7 strain displayed antagonistic activity towards S. enteritidis (4.3mm) and S. gallinarum (10.0mm), product K 971202-2 strain towards S. typhimurium (2.0mm), S. gallinarum (10.7mm) and S. pullorum (2.0mm), and product G 971113-4 and product J 971120-4 strains towards S. gallinarum (11.0/6.2mm) and E. coli (1.0mm/1.0mm), and HD 7921 isolated from swine stomach contents towards S. gallinarum, respectively. B. circulans singokriensis HD 7321 would be preferable to B. subtilis for the production of anti-diarrheal feed additive probiotics.

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키워드

Bacillus circulans Bacillus subtilis Bacterial antagonism Antagonistic probiotics Feed additive probiotics