Prevalence of Some Pesticides Residues in Buffalo’s Milk with Refer to Impact of Heating

The widespread application of pesticides in agriculture, public health programs and industry as well as around the home can lead to accumulation of pesticides in the environment, however, milk could be contaminated with pesticides from fodder, soil and ingestion of insecticides. Therefore, our survey had conducted to investigate the magnitude of contamination of buffalo’s milk with organochlorine (OC), organophosphorous (OP) and synthetic pyrethroids pesticides moreover to detect the effect of boiling of milk on concentration of these pesticides. The obtained results were revealed that OCPs (HCB, α-, β-, ϒ- HCH isomers, heptachlor, heptachlor epoxide, ϒ- chlordan, aldrin, endrin, methoxychlor, p,p -DDT, p,p -DDE, p,p -DDD) were detected with high values exceeded the tolerance levels of FAO/WHO and EU. Concerning OP pesticides, the maximum residual levels (MRLs) of dimethoate, pirimiphos-methyl as well as its arithmetic mean were higher than MRLs set by FAO/WHO . On the other hand, cypermethrin concentration as pyrethroids exceeded the limits of FAO/WHO and EU. Application of boiling process on milk, OC pesticide residues were reduced with a different percentages while pyrethroid and OP pesticide residues were eliminated due to the effect of heat treatment. Health hazard were found to be associated with heptachlor and its metabolite, heptachlor epoxide. Accordingly, monitoring survey of pesticide residues in milk is necessary to protect consumer health.