Journal of Pure and Applied MicrobiologyVol. 6 No. 4

Microbial Contamination of MDM (Mechanically Deboned Poultry Meat)

Biglar Khorram1, Leila Azami Saroukolaee1, Khorshid Hosseinzadeh2, Asghar Hassanzadeh3, Davoud Nasiri4 and Abbas Tavakoli Vaskas5*

1Department of Food Hygiene, Science and Research Branch, Islamic Azad University, Tehran, Iran. 2Department of Food Technology, Agricultural Sciences & Natural Resources University of Gorgan, Gorgan, Iran. 3Department of General Veterinary, Urmia Branch, Islamic Azad University, Urmia, Iran. 4Department of Veterinary Sciences, Naghadeh Branch, Islamic Azad University, Naghadeh, Iran. 5Department of Food Science and Technology, Ayatollah Amoli Branch, Islamic Azad University, Amol, Iran.

Received on 10 October 2012 and accepted on 14 November 2012



There are different procedures to prepare sausages, baloney, and hamburgers. One of the most common ways to produce such materials is using a special product called MDM (Mechanically Deboned poultry Meat). The MDM is in fact all the chicken leftovers and wastes such as skin, bones, and unusable parts from places like restaurants and fast food stands, which are transferred to factories in an unhealthy and unsanitary condition and are mixed and changed into MDM (Mechanically Deboned poultry Meat). The aim of the study is to determine the microbial rate of the material, which is going to be used in food products abundantly used by the people especially by children. 100 samples of MDM in bone removal machine of the Sausage producing companies were gathered. The MDM samples were immediately transferred to the laboratory in cold temperature conditions and their microbial properties were assessed and tested based on the Iran standard institution. The contamination rates of the samples were as follows: 68% Staphylococcus aureus, 62% fermentative, 59% E.coli, 53% different types of Salmonella, 21% mustiness and the infected samples serotypes to Salmonella were as follows, 25% S. gallinarum, 19% S. typhimorium, 17% S. enteritidis, 15% S. paratyphi A, 15% S. paratyphi C and 9% S. paratyphi B. When counting the number of colonies, it became clear that the rate of the contamination in 10% of the samples was beyond the limits and higher than the authorized level.

Keywords : MDM, Buder, Salmonella, Staph. aureus, E.coli.