Process contaminants
•These type of contaminant occur during the processing and production of foods such as PAH, chloropropanol and nitrosamine
•PAH formed during barbecuing, grilling meat or human exposed from air pollution and from cigarette smoker
•PAH: genotoxic, immunotoxic, carcinogenic
•Chloropropanols: genotoxic animal carcinogens such as 3-monochloropropane-1,2-diol (3-MCPD) by product in soy sauce and in hydrolyzed vegetable protein through acid hydrolysis