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Hakim Health Sys Res 2011, 13(4): 219-225 Back to browse issues page
Aflatoxin M1 Contamination of Pasteurized Cheese Produced by Two Dairy Factories in Tehran, Assessed by ELISA Technique
Tavakoli HR , Riazipour M , Naghavi S , Rostami H , Saghazadeh M
, mriazipour@yahoo.com
Abstract:   (18556 Views)

    

  

  Tavakoli HR 1 (PhD) , Riazipour M * 2 (PhD), Rafati H3,4 (PhD), Naghavi S1 (BS), Rostami H1 (BS), Saghazadeh M5 (PhD)

 

  1 Department of Nutrition, Health Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran

  2 Therapeutic Microbial Toxin Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran

  3 Department of Statistics and Epidemiology, School of Health, Baquiatallah University of Medical Sciences

 4 Trauma Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran

  5 Department of Microbiology, Faculty of Basic Sciences,  Islamic Azad University, Qom Branch, Iran

 

  Received: 31 May 2010, Accepted: 22 Dec 2010

 

 

  Abstract

 

  Introduction: Aflatoxin M1 (AFM1) in one of the most common mycotoxins that can often be found in dairy products and has some serious complications. The aim of this study is to assess AFM1 contamination of pasteurized cheese produced by two dairy factories in Tehran.

  Methods: In this cross-sectional study, 100 samples of pasteurized cheese produced by two factories were gathered in both winter and summer seasons and examined by ELISA technique for AFM1 contamination. Data were analyzed by SPSS using T-test and Man-withiney statistical tests.

  Results: AFM1 was found in 62% of examined samples. The average contamination level was
53.39 (±51.90) ng/kg. AFM1 contamination of six samples (9.3% of positive cases) exceeded Iran’s standard level (200 ng/kg). Mean contamination of AFM1 in summer cheese samples was significantly lower than winter samples (p< 0.03).

  Conclusion: The finding of this study showed that produced cheese in Iran have high contamination of AFM1 which can threaten public health. Better control of animal feeding and dairy factories can reduce AFM1 contamination in dairy products.

 

  Key words: Aflatoxin M1 Pasteurized Cheese Dairy Products Enzyme-Linked Immunosorbent Assay

  Hakim Research Journal 2011 13(4): 219- 225.

 



  * Corresponding Author: Theraputic Microbial Toxins Research Center, Baqiyatallah University of Medical Sciences, Mollasadra St, Tehran, Iran. Tel: +98- 912- 3845823, Email: mriazipour @yahoo.com

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Received: 2011/03/9
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Tavakoli HR, Riazipour M, Naghavi S, Rostami H, Saghazadeh M. Aflatoxin M1 Contamination of Pasteurized Cheese Produced by Two Dairy Factories in Tehran, Assessed by ELISA Technique . Hakim Health Sys Res . 2011; 13 (4) :219-225
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