SAĞLIKLI HAYVANLARDAN ALINAN SÜT ÖRNEKLERİNDE POTANSİYEL PATOJENLER VE ÇOKLU ANTİBİYOTİK DİRENÇLİLİĞİ: STREPTOCOCCUS SPP. SUŞLARININ DEĞERLENDİRİLMESİ

Öz

Çiğ sütün içerdiği mikroorganizma çeşitliliği ve bunların direnç profili potansiyel olarak insan sağlığı ve gıda endüstrisi için bir tehlike arz etmektedir. Bu çalışmada sağlıklı hayvanlardan elde edilen süt örneklerinin patojen ihtivası yönünden incelenmesi, sütün yaygın kontaminantı Streptococcus spp. prevalansının ve antibiyotik direnç profillerinin araştırılması amaçlanmıştır. 249 süt örneğinden Staphylococcus spp., Streptococcus spp., Lactococcus spp., Escherichia coli, Klebsiella oxytoca, Enterecoccus faecalis ve Macrococcus caseolyticus olmak üzere 358 izolat elde edilmiştir. Streptokok prevalansı %24.58 olarak tespit edilmiştir. Streptokok izolatlarının en fazla aminoglikozid sınıfına dirençli olduğu, ardından sırasıyla kinolon, tetrasiklin, makrolid, beta laktam, nitrofuran ve fenikole karşı direnç gösterdiği tespit edilmiştir. Bu durum çiğ süt tüketiminin gıda kaynaklı enfeksiyon için potansiyel bir risk olabileceğini göstermiştir. Bu nedenle tüketicilerin pastörize edilmemiş süt ve süt ürünlerinden kaçınması, çiğ sütlerin antibiyotik direnci yönünden daha fazla izlenmesi ve gerekli önlemlerin alınması gerektiği düşünülmüştür.

Anahtar Kelimeler

• Antibiyotik direnci
• Streptococcus spp.
• süt
• patojen
• halk sağlığı

PRESENCE OF THE POTENTIAL PATHOGENS AND MULTIPLE ANTIBIOTIC RESISTANCE IN MILK FROM HEALTHY ANIMALS: EVALUATION OF STREPTOCOCCUS SPP. STRAINS

Öz

The variety of microorganisms contained in raw milk and their resistance profile potentially pose a danger to human health and the food industry. This study was aimed to investigate pathogen content of milk samples obtained from healthy animals and the prevalence of Streptococcus, a common contaminant of milk, and antibiotic resistance profiles. In total, 358 isolates, including Staphylococcus spp., Streptococcus spp., Lactococcus spp, Escherichia coli, Klebsiella oxytoca, Enterococcus faecalis and Macrococcus caseolyticus, were obtained from 249 milk samples. The prevalence of streptococci was found 24.58%. Streptococcal isolates were found most resistant to the aminoglycoside class, followed by quinolone, tetracycline, macrolide, beta lactam, nitrofuran and phenicol resistance respectively. This situation has shown that the consumption of raw milk can be a potential risk for foodborne infection. Hence, it was thought that consumers should avoid unpasteurized milk and dairy products, monitor raw milk more in terms of antibiotic resistance, and take the necessary precautions.

Anahtar Kelimeler

• Antibiotic resistance
• Streptococcus spp.
• milk
• pathogen
• public health

Kaynakça

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