Journal of Food, Agriculture and Environment

Gross composition and the presence of Listeria monocytogenes and Salmonella spp. in raw milk and dairy products in Aydin, Turkey

Author(s):

Ayse Deniz Cardak

Recieved Date: 2013-07-14, Accepted Date: 2013-10-30

Abstract:

In this research, raw milk (n = 20), drinking milk (n = 20), ayran (a drink made of yoghurt and water) (n = 20), yoghurt (n = 20), white cheese (n = 20), Kashar cheese (like Kashkaval or Kasseri) (n = 20), tulum cheese (ripened in skin bags or plastic material) (n = 10), and butter (n = 10) samples were examined for the prevalence of Listeria monocytogenes and Salmonella spp. and gross composition (dry matter, ash, fat, fat in dry matter, salt, salt in dry matter, protein and titratable acidity). The contamination rate of L. monocytogenes was 25% in raw milk, 20% in tulum cheese, 10% in ayran, white cheese, and butter, and 5% in drinking milk and Kashar cheese. The prevalence rate of Salmonella spp. was 20% in raw milk, 10% in white cheese, tulum cheese and butter, and 5% in Kashar cheese. With regard to acidity, 10% of raw milk and 90% of drinking milk samples were non-compliant with the Turkish Food Codex (TFC). It was also found that five of the drinking milk samples did not contain the correct package information in terms of fat content. Of the ayran samples, 25% of samples for fat content, 55% of samples for salt content and 65% of samples for protein content were non-compliant with TFC. Of the yoghurt samples, 25% and 45% of the samples were non-compliant with TFC for acidity and fat content, respectively. It was found that 10% and 35% of white cheese samples for salt in dry matter and moisture were not acceptable according to the standard, respectively. It was determined that 50% and 100% of Kashar cheese samples for salt in dry matter and moisture content were non-compliant with the standard, respectively. Of the Tulum cheese samples, none of the samples was compliant according to the standards. With regard to fat and salt content of butter, 10% and 50% of the samples were non-compliant with the TFC, respectively.

Keywords:

Raw milk, dairy products ,Listeria monocytogenes, Salmonella spp., composition

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Journal: Journal of Food, Agriculture and Environment
Year: 2013
Volume: 11
Issue: 3&4
Category: Food and Health
Pages: 55-62

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