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    Inhibitory effects of different decontamination agents on the levels of listeria monocytogenes in the experimentally inoculated raw beef samples in the laboratory conditions
    (KAFKAS UNIV, VETERINER FAKULTESI DERGISI, 2012) Elmali, Mehmet; Yaman, Hilmi; Tekinsen, Kemal Kaan; Oner, Suleyman; Cekin, Erhan
    This study aimed at comparing the inhibitory effects of various decontamination agents (1% lactic acid, 2% lactic acid, 2% acetic acid, 0.1% acidified sodium chloride, 0.1% sodium acetate, and 0.1% cetylpridinium chlorine) on experimentally contaminated raw beef samples with Listeria monocytogenes being a significant pathogen microorganism for public health. The highest level of bacterial inhibition was determined in the meat samples treated with 2% lactic acid while the lowest level was in the samples treated with 0.1% acidified sodium chloride. It is very important to specify that initial bacterial load of carcases, the decontamination technique applied, and the characteristics of acids used (dissociated or undissociated, pH, amount, percentage, application temperature, and different combinations) are essential parameters to be taken into account in the process of reducing microorganism on raw meat samples.
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    Presence of enterobacter sakazakii in milk powder, whey powder and white cheese produced in Konya
    (KAFKAS UNIV, VETERINER FAKULTESI DERGISI, 2010) Gokmen, Mukadderat; Tekinsen, Kemal Kaan; Gurbuz, Umit
    Enterobacter sakazakii has been caused foodborne illnesses through consumption of a variety of foods such as milk powder, cheese, sausage, particularly infant foods. In this study, the presence of E. sakazakii were investigated in 60 milk powder, 50 whey powder and 50 white cheese. ISO/TS 22964 (IDF/RM 210) method was used for detection E. sakazakii. E. sakazakii was identified from milk powder 5% (3/60), white cheese 4% (2/50). E. sakazakii was not detected in whey powder. According to Commission Regulation (EC) and Turkish Food Codex Microbiological Criteria Communique E. sakazakii must not present in infant formulae, formulae for special medical purposes and follow-on formulae. Also in many countries, E. sakazakii infections associated with most of the milk-based products that have been reported. In conclusion, the results indicate that milk powder and white cheese produced some dairy plants in Konya presents a risk in terms of human health and the necessary precaution will have to be taken to carry out effective sanitary practices in the plants.
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    Survival of Helicobacter pylori in Turkish Fermented Sucuk and Heat-Treated Sucuk during Production
    (INT ASSOC FOOD PROTECTION, 2011) Guner, Ahmet; Kav, Kursat; Tekinsen, Kemal Kaan; Dogruer, Yusuf; Telli, Nihat
    The aim of this study was to investigate the survival of Helicobacter pylori during production of sucuk (Turkish fermented sausage). The sucuk mixture was inoculated with H. pylori ATCC 43504 to produce a final level in the mixture of similar to 5 x 10(6) CFU/g. Samples in group I were fermented and dried traditionally at 22 degrees C for 7 days. Samples in groups It and III were subjected to the traditional fermentation at 22 degrees C for 3 clays. After fermentation, group It samples were fermented and dried at 35 degrees C for 4 days and group III samples were treated with heat until the core temperature reached 65 degrees C. On the first day of fermentation, a I log reduction in H. pylori was found in all groups. The H. pylori levels in all groups increased by about 1 log CFU/g by the third day of fermentation and reached the inoculation level. On the fifth and seventh days of fermentation, no appreciable change occurred in the level of H. pylori in groups I and II. After heat treatment, the H. pylori levels were below the level of detection, These results suggest that H. pylori can grow during sucuk fermentation and that a heat treatment should be used during sucuk processing to destroy H. pylori.