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Título: | Effect of lactic cultures on Escherichia coli in ewes' milk stored at low temperatures |
Autor: | Chavarri, F. J.; Nuñez, José A.; De Paz, M.; Núñez Gutiérrez, Manuel | Palabras clave: | Lactic cultures Escherichia coli Ewes' milk |
Fecha de publicación: | 1991 | Editor: | Elsevier | Citación: | International Journal of Food Microbiology 13(4): 309-314 (1991) | Resumen: | The behaviour of Escherichia coli in pasteurized ewes' milk inoculated with different lactic starter cultures and incubated at temperatures in the range 4-16°C for 96 h was investigated. Growth temperature of lactic starter cultures before inoculation had a significant effect on inhibition of E. coli. The growth temperature of lactic starter inoculum which resulted in the highest inhibitory activity was 24°C. Size of lactic starter inoculum also significantly influenced growth of E. coli, with a higher inhibition for 1% inoculum than for 0.1% or 0.3% inocula. Single cultures of Lactococcus lactis showed a stronger inhibitory activity than single cultures of Leuconostoc cremoris or Leuconostoc dextranicum. A lactic starter culture comprising Lactococcus lactis, Leuconostoc cremoris and Leuconostoc dextranicum resulted in the strongest inhibition. Stimulation of E. coli by the lactic starter cultures was frequently recorded at 4°C and 8°C. However, none or a very limited growth of E. coli was seen at these temperatures. © 1991. | URI: | http://hdl.handle.net/10261/293549 | DOI: | 10.1016/0168-1605(91)90089-8 | ISSN: | 0168-1605 |
Aparece en las colecciones: | (INIA) Artículos |
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