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العنوان
Rapid detection of food borne pathogens in different foodstuffs /
الناشر
Ramy Ragab Mohamed Abdallah ,
المؤلف
Ramy Ragab Mohamed Abdallah
هيئة الاعداد
باحث / Ramy Ragab Mohamed Abdallah
مشرف / Heidy Mohamed Shawky
مشرف / Ahmed Adel Seida
مشرف / Heidy Mohamed Shawky
تاريخ النشر
2018
عدد الصفحات
206 P. :
اللغة
الإنجليزية
الدرجة
ماجستير
التخصص
علم الأحياء الدقيقة
تاريخ الإجازة
24/9/2018
مكان الإجازة
جامعة القاهرة - كلية الطب البيطري - Microbiology
الفهرس
Only 14 pages are availabe for public view

from 242

from 242

Abstract

Food borne pathogens can be found in various food stuffs, so it is important to detect food borne pathogens to provide safe food supply and to prevent foodborne diseases. The conventional methods used to detect food borne pathogens are time consuming and laborious. Hence, a variety of methods have been developed for rapid detection of food borne pathogens as it`s required in many food analyses. Rapid detection methods can be categorized into nucleic acid-based, biosensor-based and immunological-based methods. The present study emphasizes on the principles and application of recent rapid methods for the detection of food borne bacterial pathogens. Detection methods used were simple polymerase chain reaction (PCR), multiplex PCR, and real-time PCR. In the present study a total of 250 samples were collected from milk, milk products, meat, meat products, fish, shrimps, chicken meat and liver for detection of most common food borne pathogens. The bacteriological and biochemical results revealed that, 60 E.coli, 35 Salmonella and 10 Campylobacter isolates were recovered. The obtained isolates were serologically identefied using specific antisera. Some of the resistance and virulence genes of E.coli and Salmonella were studied. Antibiogram for the recovered E.coli isolates revealed high resistance to amoxicillin (100%), lincomycin (92%), rifampicin (88%), sulphamethaxzole+ trimethoprim (72%) and doxycyclin (64%), On the other hand, E.coli strains were highly sensitive to colistinsulphate (72%), (60%) for each of amoxicillin+clavulinic acid and spectinomycin and (56%) for ciprofloxacin. while Salmonella species were highly resistant to lincomycin, rifampicin, amoxicillin+clavulinic acid and spectinomycin with an incidence of (100%,), (100%),( 58.33%) and( 50%) respectively