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Articles by N. Yildirim
Total Records ( 2 ) for N. Yildirim
  S. Yesillik , N. Yildirim , A. Dikici , A. Yildiz and S. Yesillik
  In this study, the antibacterial effects of homemade yoghurt, commercial yoghurt, commercial kefir and probiotic yoghurt on viability of Salmonella typhimurium (ATCC 14028), Escherichia coli (ATCC 25922), Pseudomonas aeruginosa (ATCC 27853) and Staphylococcus aureus (ATCC 25923) was investigated by using disc diffusion method. Antibaterial effects of the samples were tested at 24, 48 h and the 7 day intervals. Homemade yoghurt showed the maximum antibacterial effect against the pathogens. It was determined that the most sensitive pathogenic bacteria to dairy products were Salmonella typhimurium whereas the least sensitive pathogen was Pseudomonas aeruginosa. Comparing to the antimicrobial effect of 0.9% lactic acid which was used as positive control, our results concluded that the bacteria found in fermented dairy products have an antibacterial activity and this activity is not caused by only lactic acid.
  O. Kaplan , N.C. Yildirim , N. Yildirim and M. Cimen
  In the higher organisms, the intake of trace elements occurs mainly through the respiratory system or through the food chain. Particularly, many dangerous elements or compounds, such as metals accumulate along the food chain. In this way, the food chain becomes the main gateway for persistent toxicants to enter higher organisms. Furthermore, these toxic elements generally have an anthropogenic origin and thus their concentrations in the environment grow with the increase of urban, agricultural and industrial emissions. With increasing environmental pollution, a toxic metal exposure assessment study is necessary. Toxic elements are not metabolized at all. Some metals irreversibly are bound to body tissues, e.g., lead to bone or cadmium to kidneys. This review updates the information on carry-over of toxic substances from feed to food of animal origin (meat, organs, milk and eggs). The control of environmental contaminants that may cause residues in food of animal origin is sometimes quite difficult and expensive and is addressed with special attention in this review.
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