جستجوی مقالات مرتبط با کلیدواژه "salmonella" در نشریات گروه "علوم پایه"

pathogenic bacteria in food are the cause of many infections and food poisoning. The prevalence of bacterial contamination is high in developing countries, and Staphylococcus aureus, Salmonella and Escherichia coli account for the highest amount of food contamination; Therefore, the aim of this study is to investigate the prevalence of Escherichia coli, Staphylococcus aureus and Salmonella in water, fruit juice and traditional ice creams offered in Qom city, Iran.

In the present study, 300 samples, including 100 water samples, 100 fruit juice samples, and 100 traditional ice cream samples, were taken from supply centers, sampled and transferred to the food hygiene laboratory of Shahrekord Azad University. SPSS version 26 statistical software and Kai-Hat statistical test were used for data analysis. A significant level (P<00.05) was considered.

The results showed that out of 300 studied samples, 170 samples were infected with pathogenic microorganisms. In this way, the amount of Escherichia coli, Staphylococcus aureus and Salmonella contamination in water was 1, 16 and 2 samples, in traditional fruit juice 8, 46 and 26 samples and in traditional ice cream 8, 59 and 28 samples.

According to the present results, it is necessary to refrain from consuming traditional fruit juice and traditional ice cream in centers that have unfavorable health conditions and to use purified water, and if there is no purified water before Boiled water should be consumed to prevent food-borne diseases.

Salmonellosis is the most important form of bacterial infection in humans and animals caused by the non-typhoid salmonella family. Salmonella infection is the most common cause of foodborne infections. One of the most important sources of Salmonella contamination is poultry and meat products. In the last two decades, the emergence of Salmonella resistant to common antibiotics has increased the problems of Salmonella contamination in meat products. Transmission of these resistant bacteria to humans makes the treatment process difficult and lengthy. The aim of this study was to determine the prevalence of Salmonella bacteria and tetA and tetB resistance genes from poultry stores in Zahedan. In this descriptive cross-sectional study, Salmonella isolates were isolated from 130 poultry stores in Zahedan based on standard methods published by OIE and FDA. The results of this study show that only 6.15% of the samples were Salmonella and 3.07% were Salmonella typhimurium strains. Examination of the frequency of resistance genes in isolated samples in the present study shows that in 50% of Salmonella isolates, none of the tetA or tetB resistance genes was detected, while in the other 50%, only the tetB resistance gene was identified. The presence of tetracycline resistance genes in Salmonella isolates suggests that the use of antibiotics in the poultry industry should be controlled and more carefully used to reduce the frequency of these genes.