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Full-Text Articles in Medicine and Health Sciences
Detoxification Of Aflatoxin B_1 By Bacteriocins And Bacteriocinogenic Lactic Acid Bacteria, Çi̇ğdem Sezer, Abamüslüm Güven, Nebahat Bi̇lge Oral, Leyla Vatansever
Detoxification Of Aflatoxin B_1 By Bacteriocins And Bacteriocinogenic Lactic Acid Bacteria, Çi̇ğdem Sezer, Abamüslüm Güven, Nebahat Bi̇lge Oral, Leyla Vatansever
Turkish Journal of Veterinary & Animal Sciences
The aim of this study was to investigate the effectiveness of lactic acid bacteria and their bacteriocins in detoxifying aflatoxins. Aflatoxin B1 detoxification abilities of lactic acid bacteria both in liquid culture and as concentrated pellets, their bacteriocins, and mixtures of these 3 were evaluated. Mixed cultures of the 2 bacteria were also investigated. Lactobacillus plantarum and Lactococcus lactis were separately able to detoxify aflatoxin B_1 in solutions. Lb. plantarum had a better detoxification rate (46%) than Lc. lactis (27%). After heat treatment, only the groups that contained pellets released the bound toxin back into the solution. Although bacteria and …
Effect Of Lactobacillus Sakei Lb706 On Behavior Of Listeria Monocytogenes In Vacuum-Packed Rainbow Trout Fillets, Şükri̇ye Aras Hi̇sar, Güzi̇n Kaban, Olcay Hi̇sar, Telat Yanik, Mükerrem Kaya
Effect Of Lactobacillus Sakei Lb706 On Behavior Of Listeria Monocytogenes In Vacuum-Packed Rainbow Trout Fillets, Şükri̇ye Aras Hi̇sar, Güzi̇n Kaban, Olcay Hi̇sar, Telat Yanik, Mükerrem Kaya
Turkish Journal of Veterinary & Animal Sciences
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. …
Behaviour And Biological Control Of Bacteriocin-Producing Leuconostocs Associated With Spoilage Of Vacuum-Packaged Sucuk, Özlem Osmanağaoğlu
Behaviour And Biological Control Of Bacteriocin-Producing Leuconostocs Associated With Spoilage Of Vacuum-Packaged Sucuk, Özlem Osmanağaoğlu
Turkish Journal of Veterinary & Animal Sciences
Non-motile, Gram-positive and catalase-negative anaerobic Leuconostoc sp. were found to be involved in the spoilage of vacuum-packaged refrigerated sucuk samples. The spoilage was associated with an accumulation of large quantities of foul-smelling gas and purge in the bag and loss of colour and texture in the meat. Many of these isolates produce bacteriocins, to which the predominant Gram-positive bacteria normally found in these products are sensitive. As the leuconostocs grew at low temperatures and produced bacteriocins, they inhibited the growth of associated sensitive bacteria. Attempts to inoculate purge from spoiled samples into fresh meat, vacuum packaging and refrigeration storage facilitated …
Studingon Metabolic And Antimicrobial Activities Of Some L. Plantarumstrains Isolated From Sausages, Aysel Toksoy, Yavuz Beyatli, Belma Aslim
Studingon Metabolic And Antimicrobial Activities Of Some L. Plantarumstrains Isolated From Sausages, Aysel Toksoy, Yavuz Beyatli, Belma Aslim
Turkish Journal of Veterinary & Animal Sciences
In this research, a total of 97 Lactobacillus were isolated from 10 different sausage and sosis samples obtained from different markets. Identification results showed that 39 (41.1%) isolates belong to the species L. plantarum. Amount of lactic acid and H 2 O 2 produced for the strains were 0.61-0.88% and 1.80-3.45 µg/ml respectively. For qualitative determination, Triple Sugar iron (TSi) Agar medium was used for H 2 S production by the strains. Inhibition activity of bacteriocins and/or bacteriocin-like substances of the L. plantarumstrains against some food contaminants and pathogen bacteria ( E. coli, B. subtilis, coag. (+) and coag. (-) …
Studing On Metabolic And Antimicrobial Activities Of Some P. Acidilactici Strains Isolated From Meat Products, Mustafa Aşkar, Belma Aslim, Yavuz Beyatli
Studing On Metabolic And Antimicrobial Activities Of Some P. Acidilactici Strains Isolated From Meat Products, Mustafa Aşkar, Belma Aslim, Yavuz Beyatli
Turkish Journal of Veterinary & Animal Sciences
In this research, , In this study, a total of 74 Pediococci were isolated from 10 different sausage and sosis samples obtained from different retailers . The identification results showed that 30 (40.5%) isolates were from the species P. acidilactici. The amounts of lactic acid and H2O2 produced by the strains were in the ranges 0.11-0.64% and 0.441-0.90 (µg/10 ml, respectively. A Triple Sugar Iron (TSI) Agar medium was used for estimating the H2S production of the strains. The generally, inhibitory effects and the inhibitory effects of the bacteriocins and / or bacteriocin-like substances in the P. acidilactici strains were …
Effect Of Bacteriocinogenic Starter Cultures On The Growth Of Listeria Monocytogenes In Turkish Fermented Sausage (Sucuk), İrfan Erol, T. Haluk Çeli̇k, Ufuk Tansel Şi̇reli̇, Haydar Özdemi̇r
Effect Of Bacteriocinogenic Starter Cultures On The Growth Of Listeria Monocytogenes In Turkish Fermented Sausage (Sucuk), İrfan Erol, T. Haluk Çeli̇k, Ufuk Tansel Şi̇reli̇, Haydar Özdemi̇r
Turkish Journal of Veterinary & Animal Sciences
The objective of this study was the inhibition of L. monocytogenes (SLCC 9488) serotype 4b, indicated great importance in foodborne listeriosis, by using bacteriocin producer starter cultures as Pediococcus acidilactici PAC 1.0 and Lactobacillus sake Lb 706 in fermented Turkish sausage (sucuk), ripened at 20° and 25°C. For this purpose, 4 groups were constituted in each experimental sucuk producing as following. All of these groups were inoculated with L. monocytogenes at the range of 7.0 - 2.9x10^5 cfu/g, and the other groups except control group following starter cultures were added. 1.Group : Included only L. monocytogenes at the range of …