Abstract
In order to investigate the presence of Listeria monocytogenes in raw and imported Ultra Heat Treatment(UHT) milk, this study was done by random collection of samples from different areas in Baghdad province andits surroundings from different animals (small and large ruminants) as 68 total samples (53 raw milk samples and15 imported UHT samples)collected weekly from October 2007 till January 2008, and processed according tostandard protocols of Listeria monocytogenes .The results showed reisolation of 10 isolates from 68 samples (14.7%) as 6 isolated from raw milk samples(11.3%) and 4 isolated from UHT milk samples (26.7%) ,these revealed significant differences (P≤0.05) inisolated percentage of Listeria monocytogenes from raw milk of Cows, Buffalos , Ewes and Does especiallyfrom Al-Fadhyllea region , the highest isolation percentage was in November (2007) as 16.7%(3 isolates from 18samples ) especially from ewes as 1 isolate from 3 samples (33.4%) followed by cows and buffaloes with nonisolatesfrom Does .The percentage of isolation from UHT milk samples was 26.7% as 2 isolates from white UHT milk samples(40%) and 2 isolates from 10 chocolate UHT milk samples (20%).We concluded from this study by contamination of raw and imported UHT milk samples by Listeriamonocytogenes in Baghdad.
Highlights
أستتتت ال ال ارستتر الت تتري تتن و تتو رثومتتر Listeria monocytogenesاتتل ال ليتتم اللتتوم والمستتتور Ultra Heat )UHT Treatmentمتن لت ل متن ذمتوشو يتوا ير متن مذتوط ملتلةتر متن م يذتر ب ت ا و اط اراتتو ومتن يواذتول ملتلةتر الم تت ارل الغبيتر) وال ت ير) ) بواقن 86أذموش و 35أذموشو ليم لوم و 53أذموشو ليم مستور ) معل أسبو يو للمت ) متن تيترين ا ول 7002ول ويتر غتوذون الثتوذل 7006
In order to investigate the presence of Listeria monocytogenes in raw and imported Ultra Heat Treatment (UHT) milk, this study was done by random collection of samples from different areas in Baghdad province and
The results showed reisolation of 10 isolates from 68 samples (14.7%) as 6 isolated from raw milk samples (11.3%) and 4 isolated from UHT milk samples (26.7%),these revealed significant differences (P≤0.05) in isolated percentage of Listeria monocytogenes from raw milk of Cows, Buffalos, Ewes and Does especially from Al-Fadhyllea region, the highest isolation percentage was in November (2007) as 16.7%(3 isolates from 18 samples ) especially from ewes as 1 isolate from 3 samples (33.4%) followed by cows and buffaloes with nonisolates from Does .
Summary
أستتتت ال ال ارستتر الت تتري تتن و تتو رثومتتر Listeria monocytogenesاتتل ال ليتتم اللتتوم والمستتتور Ultra Heat )UHT Treatmentمتن لت ل متن ذمتوشو يتوا ير متن مذتوط ملتلةتر متن م يذتر ب ت ا و اط اراتتو ومتن يواذتول ملتلةتر الم تت ارل الغبيتر) وال ت ير) ) بواقن 86أذموش و 35أذموشو ليم لوم و 53أذموشو ليم مستور ) معل أسبو يو للمت ) متن تيترين ا ول 7002ول ويتر غتوذون الثتوذل 7006. ذستذتل من هشه ال ارسر تلوه ذموشو ال ليم اللوم والمستتور متن لتورو العت ار ب ت ارثيم Listeria monocytogenesاتل م يذتر ب ت ا وأط اراتتو .
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