INVESTIGADORES
CUOZZO Sergio Antonio
artículos
Título:
Listeria monocytogenes inhibition in meat slurry by “in situ” produced lactocin 705
Autor/es:
GRACIELA VIGNOLO; CUOZZO, SERGIO; MARTHA N. DE KAIRUZ; AÍDA P. DE R. HOLGADO; GUILLERMO OLIVER
Revista:
Microbiologie Aliments Nutrition
Editorial:
SOCIETE IEENA
Referencias:
Lugar: CHÄTENAY-MALABRY; Año: 1997 vol. 14 p. 363 - 367
ISSN:
0759-0644
Resumen:
Lactobacillus casei CRL 705 can release a bacteriocin, lactocin 705, active against Listeria monocytogenes. MRS broth was inoculated with spectinomycin-resistant (SpcR), bacteriocin-producing (Bac+) Lactobacillus casei CRL 705 strain and polymyxin B-resistant (PolR) Listeria monocytogenes strain. Viable counst of listeria decreased rapidly from 5 x 10 3 to 10 cells/ml, whereas its growth was not affected by a bacteriocin-negative variant of L. Casei CRL 705. The assessment of the bacteriocin effectiveness in a meal slurry showed that L. Monocytogenes did not multiply during the experimental period of time suggesting that lactacin 705 has a bacteriostatic effect.
