Comparison of the Antibiotic Resistance of Lactobacilli Isolated from Traditional Dairy Products with the Antibiotic Resistance of Lactobacilli Isolated from Industrially Produced Dairy Products

Lactobacilli are a member of the Lactic Acid Bacteria (LAB) family that are used as starter culture in the production of industrial and traditional dairy products. Lactobacilli could potentially play an important role in the transition of antibiotic resistance to gastrointestinal bacteria or pathogenic bacteria. In this study, Lactobacilli were isolated from traditional yogurts, yogurt drinks and industrial yogurts and yogurt drinks and the antibiotic resistance to  13 antibiotic including: Penicillin, Ampicillin, Tetracycline, Erythromycin, Gentamicin, Streptomycin, Vancomycin, Nalidixic acid, Trimethoprim Sulfamethoxazole, Kanamycin, Rifampin, Ciprofloxacin, and Chloramphenicol have been investigated and the results were compared. According to the results, vancomycin resistance was the most prevalent phenotype in traditional yogurt (45.8%) and yogurt drink (40%) and in industrial yogurt (59%) and yogurt drink (50%) respectively. Except in the case of Penicillin and rifampin there was no significant difference between the resistances of Lactobacilli isolated from industrial yogurt to other studied antibiotics in this study are compared to the resistance of Lactobacillus isolated from traditional yogurt. Ciprofloxacin resistance in Lactobacilli isolated from industrial yogurt drink is significantly higher than the resistance of Lactobacilli isolated from traditional yogurt drink and there was no significant difference between the resistances to the other studied antibiotics inLactobacillus isolated from industrial and traditional yogurt drink.Antibiotic resistance was observed in Lactobacilli isolates of traditional and industrial samples. It seems that there is a need to pay attention to the antibiotic resistance in starter cultures used in the food industries in order to prevent the spread of antibiotic resistance.