Research Article

Risk assessment of some residues in milk and some dairy products

Saadia H. El- shinawya , Gamal M. Hassana, Fayza A. Sdeekbband Dina M. Ismaielc
Department of Milk hygiene, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef 62511, Egypt

Abstract

Milk and dairy products are an important exposure route for organochlorine pesticides (OCPs) to humans. For this reason  milk, kareish cheese and yoghurt  analyzed for the presence of fourteen organochlorine  pesticides namely Alpha HCH, Gamma HCH, Delta HCH, Aldrin, Gamma Chlordane, Endosulfan, Dieldrin, Endrin, , p,p'-DDE, p,p'-DDD, p,p'-DDT and methoxychlor  using gas chromatography  with electron capture detector (GC-ECD. A total of 90 random samples of raw cow's milk samples and dairy products (30 of each) were collected from 4 districts in  Fayoum Governorate (Fayoum, Etssa, senoris  and Tamia) during a period from September  2017 to  January 2018. The results indicated that 6.60%(6/90) , 5.50%(5/90), 25.55%(23/90), 13.33%(12/9), 11.11%(10/90), 1.11%(1/90), 18.88%(17/90), 8.88%(8/90), 15.55%(14/90), 17.77%(16/90) and 22.22%(20/90)  of the examined samples were contaminated  with Alpha HCH, Gamma HCH, Delta HCH, Aldrin, Gamma Chlordane, Endosulfan,  Dieldrin,  Endrin,  p,p'-DDE,  p,p'-DDD and methoxychlor,respectively. None of the examined  samples revealed the presence of Dichlorodiphenyltrichloroethane (p,p'-DDT), Heptachlor and Heptachlor epoxide.Generally the concentrations in the examined samples followed the order of  Delta HCH > methoxychlor > Gamma HCH > p,p'-DDD > Dieldrin > Aldrin > Gamma Chlordane > Endosulfan > p,p'-DDE > Endrin > Alpha HCH. 

Keywords

Raw milk ,Kareish cheese ,yoghurt, Organochlorine pesticides