title: Origin of haloacetic acids in milk and dairy products.
abstract: Haloacetic acids (HAAs) are formed during the process of water disinfection. Therefore their presence in foods can be correlated with the addition of or contact with treated water. To determine the origin of HAAs in milk and dairy products, firstly a chromatographic method was developed for their determination. The sample treatment involves deproteination of milk followed by derivatization/extraction of the HAAs in the supernatant. About 20% of the foods analyzed contained two HAAs - which in no case exceeded 2 μg L(-1), that can be ascribed to contamination from sanitizers usually employed in the dairy industry. The process of boiling tap water (containing HAAs) for the preparation of powdered infant formula did not remove them; therefore it would be advisable to prepare this type of milk with mineral water (free of HAAs). In addition, it is possible to establish if the milk has been adulterated with treated water through the determination of HAAs.
authors.affiliation: Department of Analytical Chemistry, Campus of Rabanales, University of Córdoba, E-14071 Córdoba, Spain.
authors.forename: Maria Jose
authors.initials: MJ
authors.lastname: Cardador
authors.affiliation: Department of Analytical Chemistry, Campus of Rabanales, University of Córdoba, E-14071 Córdoba, Spain. Electronic address: mercedes.gallego@uco.es.
authors.forename: Mercedes
authors.initials: M
authors.lastname: Gallego
mesh_terms: D000085:Acetates / Q000032:analysis*; D000818:Animals; D002417:Cattle; D003611:Dairy Products / Q000032:analysis*; D005506:Food Contamination / Q000032:analysis*; D008892:Milk / Q000737:chemistry*; D014867:Water / Q000737:chemistry; D014874:Water Pollutants, Chemical / Q000032:analysis; D014881:Water Supply
chemical_list: D000085:Acetates; D014874:Water Pollutants, Chemical; D014867:Water
keywords: Bromochloroacetic acid (PubChem CID: 542762); Bromodichloroacetic acid (PubChem CID: 114809); Chlorodibromoacetic acid (PubChem CID: 115266); Dibromoacetic acid (PubChem CID: 12433); Dichloroacetic acid (PubChem CID: 6597); Haloacetic acids; Milk and dairy products; Monobromoacetic acid (PubChem CID: 6227); Monochloroacetic acid (PubChem CID: 300); Monoiodoacetic acid (PubChem CID: 5240); Static headspace gas chromatography–mass spectrometry; Tribromoacetic acid (PubChem CID: 6415); Trichloroacetic acid (PubChem CID: 6421)