Antagonistic effect of the kefir on endospores and vegetative cells of bacillus cereus and clostridium perfringens
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作者:
Anselmo R.J.
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Univ. Nacional de Luján, Depto. de Ciencias Básicas, (6700) Luján, Buenos AiresUniv. Nacional de Luján, Depto. de Ciencias Básicas, (6700) Luján, Buenos Aires
Anselmo R.J.
[1
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Viora S.S.
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Univ. Nacional de Luján, Depto. de Ciencias Básicas, (6700) Luján, Buenos AiresUniv. Nacional de Luján, Depto. de Ciencias Básicas, (6700) Luján, Buenos Aires
Viora S.S.
[1
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Ojeda P.A.
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Univ. Nacional de Luján, Depto. de Ciencias Básicas, (6700) Luján, Buenos AiresUniv. Nacional de Luján, Depto. de Ciencias Básicas, (6700) Luján, Buenos Aires
Ojeda P.A.
[1
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Lausada L.I.
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Univ. Nacional de Luján, Depto. de Tecnología, (6700) Luján, Buenos AiresUniv. Nacional de Luján, Depto. de Ciencias Básicas, (6700) Luján, Buenos Aires
Lausada L.I.
[2
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机构:
[1] Univ. Nacional de Luján, Depto. de Ciencias Básicas, (6700) Luján, Buenos Aires
[2] Univ. Nacional de Luján, Depto. de Tecnología, (6700) Luján, Buenos Aires
The bactericide effect of the kefir was studied on endospores and vegetative cells of Bacillus cereus and Clostridium perfringens inoculated in kefir during its storage. Samples of kefir of two different origins, one Italian and the other Peruvian were inoculated with a well-known population of B. cereus and Cl. perfringens (106 UFC/mL) and conserved at 4°C during 30 days. Every two days it was carried out a recount of lactic bacteria, of yeasts, of the pathogenic added and the pH was determined. The population of vegetative cells of B. cereus reduced to non detectable levels in 14 days of storage and of its endospores in 20 days of storage. Regarding Cl. perfringens the population of vegetative cells and its endospores reduced to non detectable levels in 14 and 18 days of storage, respectively. The results confirm the bactericide effects of the starter cultures of kefir.
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Alaska Dept Hlth, Alaska Div Publ Hlth, Sect Epidemiol, 3601 C St, Anchorage, AK 99503 USA
CDCP, Epidem Intelligence Serv, Div Sci Educ & Profess Dev, Atlanta, GA USAAlaska Dept Hlth, Alaska Div Publ Hlth, Sect Epidemiol, 3601 C St, Anchorage, AK 99503 USA
Newell, Katherine
Helfrich, Kathryn
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Alaska Dept Hlth, Alaska Div Publ Hlth, Sect Epidemiol, 3601 C St, Anchorage, AK 99503 USAAlaska Dept Hlth, Alaska Div Publ Hlth, Sect Epidemiol, 3601 C St, Anchorage, AK 99503 USA
Helfrich, Kathryn
Isernhagen, Heidi
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Alaska Dept Environm Conservat, Food Safety & Sanitat Program, Anchorage, AK USAAlaska Dept Hlth, Alaska Div Publ Hlth, Sect Epidemiol, 3601 C St, Anchorage, AK 99503 USA
Isernhagen, Heidi
Jones, Martin
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Alaska Dept Hlth, Alaska Div Publ Hlth, Sect Epidemiol, 3601 C St, Anchorage, AK 99503 USA
CDCP, Ctr State Tribal Local & Terr Support, Atlanta, GA USAAlaska Dept Hlth, Alaska Div Publ Hlth, Sect Epidemiol, 3601 C St, Anchorage, AK 99503 USA
Jones, Martin
Stickel, Gabriela
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Washington State Publ Hlth Labs, Enter Bacteriol & Food & Shellfish Bacteriol Labs, Shoreline, WA USAAlaska Dept Hlth, Alaska Div Publ Hlth, Sect Epidemiol, 3601 C St, Anchorage, AK 99503 USA
Stickel, Gabriela
McKeel, Haley
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CDCP, Enter Dis Lab Branch, Div Foodborne Waterborne & Environm Dis, Atlanta, GA USAAlaska Dept Hlth, Alaska Div Publ Hlth, Sect Epidemiol, 3601 C St, Anchorage, AK 99503 USA
McKeel, Haley
Castrodale, Louisa
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Alaska Dept Hlth, Alaska Div Publ Hlth, Sect Epidemiol, 3601 C St, Anchorage, AK 99503 USAAlaska Dept Hlth, Alaska Div Publ Hlth, Sect Epidemiol, 3601 C St, Anchorage, AK 99503 USA
Castrodale, Louisa
McLaughlin, Joseph
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Alaska Dept Hlth, Alaska Div Publ Hlth, Sect Epidemiol, 3601 C St, Anchorage, AK 99503 USAAlaska Dept Hlth, Alaska Div Publ Hlth, Sect Epidemiol, 3601 C St, Anchorage, AK 99503 USA