The effect of a bacteriocin-producing strain, Lactobacillus sakei Lb706, on the behavior of Listeria monocytogenes in rainbow trout fillets stored under vacuum at 4 ºC for 14 days and at 10 ºC for 5 days was investigated. At 4 ºC, growth of L. monocytogenes was significantly inhibited (P < 0.05) by L. sakei Lb706 during 10 days of storage while bacteriocin-negative Lb706-B did not affect the growth of L. monocytogenes during 14 days of storage. In the presence of the sakacin A-producing strain of L. sakei (Lb706), the growth of L. monocytogenes was significantly inhibited (P < 0.05) in the first 3 days of storage at 10 ºC, after which its count increased to 10^7 CFU/g. The control group and the group containing L. sakei Lb706-B showed similar growth patterns of L. monocytogenes. Significant increases (P < 0.05) were observed in all groups in terms of psychrotrophic bacteria counts. No significant (P > 0.05) changes in pH values during storage at 4 ºC and 10 ºC were determined. Consequently, the results of the present study showed that L. sakei Lb706 can be used as a protective culture in freshwater reared rainbow trout, especially for preventing possible contaminations of Gram-positive food-borne pathogenic bacteria such as L. monocytogenes during filleting.
HİSAR, ŞÜKRİYE ARAS; KABAN, GÜZİN; HİSAR, OLCAY; YANIK, TELAT; and KAYA, MÜKERREM (2005) "Effect of Lactobacillus sakei Lb706 on Behavior of Listeria monocytogenes in Vacuum-Packed Rainbow Trout Fillets," Turkish Journal of Veterinary & Animal Sciences: Vol. 29: No. 4, Article 15. Available at: https://journals.tubitak.gov.tr/veterinary/vol29/iss4/15