2011 YÜksek lisans tez özetleri

Detection of Detection of Salmonella spp. in Minced Meat Consumed in Istanbul
Salmonella spp. is the reason of food infection that is called salmonellosis. In developed and still developing countries, salmonellosis is a premier reason for food infection and intoxication and it is determined that salmonellosis occurres as a result of consuming contamin animal product.

Usually, traditional culture method is used for determination of Salmonella spp from foods. New techniques which give result in a short time are needed because time is a very important factor for detecion of food pathogenes.

In our thesis, the presence of Salmonella spp. in minced meat that is consumed in nine different sites of Istanbul is evaluated using traditional culture method (ISO), immunomagnetic separation (IMS) and fluorescent in situ hybridization (FISH) techniques. Two different medium, Salmonella-Shigella (SS) Agar and Brilliant Green Phenol Red Laktose Sukrose (BPLS) Agar are used in traditional culture (ISO) and immunomagnetic separation (IMS) techniques.

Salmonella spp. had been isolated from 5 of 50 minced meat with traditional culture method (ISO) and 3 of 50 minced meat using immunomagnetic separation. Bacteria isolated from both ISO and IMS methods had been identified as Salmonella choleraesuis ssp. arizonae and Salmonella spp. The presence of Salmonella spp. had been determined from 37 of 50 minced meat using FISH technique. Although magnetic particles coated with spesific antibodies of Salmonella spp. had been used in IMS technique, it was determined that other bacteria types such as Citrobacter brakii, Citrobacter freundii, Proteus vulgaris and Proteus mirabilis belong to Enterobacteriaceae family had been developed.

In our study, traditional culture method (ISO) had been found more susceptible than immunomagnetic separation (IMS) method for determining presence of Salmonella spp. Despite that, studies using FISH technique showed that FISH technique is the best technique to determination presence of Salmonella spp.

Even if the quick determination of the epidemics of international importance occured as a result of the contamination by pathogens derivated from foods, the results of the use of new techniques should be supported by the traditional culture method which is a golden standart method.

HASLAN Ezgi

Danışman : Doç. Dr. Ayten ERDEM

Anabilim Dalı : Biyoloji

Programı : Temel ve Endüstriyel Mikrobiyoloji

Mezuniyet Yılı : 2011

Tez Savunma Jürisi : Doç. Dr. Ayten ERDEM

Prof. Dr. Ayşın ÇOTUK

Prof. Dr. Dilek YAYLALI

Prof. Dr. Gülten ÖTÜK

Doç. Dr. İrfan TÜRETGEN