Abstract
Phthalates are animal carcinogens and may cause death or tissue deformities. Samples of feedstuffs collected in 2005 and 2006 from industrial feed manufacturers in the Czech Republic were analysed for contamination with phthalic acid esters (PAEs), specifically di-2-ethylhexyl phthalate (DEHP) and di-n-butyl phthalate (DBP). Samples of feed additives, premixes and raw materials were collected (year 2005, n = 26). For soybean oil, the total volume of phthalates measured (DBP + DEHP) reached a level of 131.42 mg kg−1; for rapeseed oil, fish meal and animal fats, the levels measured were 15.00, 7.96 and 58.87 mg kg−1, respectively. The lowest level of DBP + DEHP was found in corn (2.03 mg kg−1). Since phthalates were detected, samples of feed additives (n = 28) and raw materials (n = 28) were collected again in 2006. The highest levels of DBP + DEHP were found in raw materials containing fat. Phthalate levels in rapeseed oil samples ranged from 1.38 to 32.40 mg kg−1 DBP + DEHP. For feed additives, contamination levels in vitamins and amino acids ranged from 0.06 to 3.15 and 1.76 to 4.52 mg kg−1 DBP + DEHP, respectively. Here, we show that the levels of PAEs found in cereals such as wheat, barley and corn may be regarded as being alarmingly high, because cereals make up the largest proportion of compound feed of farm animals.
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References
Drápal J, Valcl O (1998) Contamination of the food chain with foreign substances—the situation in 1997. Information Bulletin of the State Veterinary Administration of the Czech Republic
Jarošová A (2004) Polychlorinated biphenyls and phthalic acid esters in the food chain. Habilitation. Mendel University of Agriculture and Forestry, Brno
Jarošová A (2006) Phthalic acid esters (PAEs) in the food chain. Czech J Food Sci 24:223–231
Jarošová A, Gajdůšková V, Raszyk J, Ševela K (1998) Determination of phthalic acid esters (PAEs) in biological materials by HPLC. Czech J Food Sci 16:122–130
Jarošová A, Gajdůšková V, Raszyk J, Ševela K (1999) Di-2-ethylhexyl phthalate and di-n-butyl phthalate in the tissues of pigs and broiler chicks after their oral administration. Vet Med Czech 44:61–70
Krauskopf LG (2003) How about alternatives to phthalate plasticizers? J Vinyl Additive Technol 9:159–171
Latini G (2005) Monitoring phthalate exposure in humans. Clin Chim Acta 361:20–29
Raszyk J, Gajdušková V, Jarošová A, Salava J, Palac J (1998) Occurrence of phthalic acid esters in combined feedstuffs and adipose tissues of swine and cattle. Vet Med Czech 43:93–95
Tsumura Y, Ishimitsu S, Namakura Z, Yoshii K, Kaihara A, Tonogai Y (2001) Contents of eleven phthalates and di(2-ethylhexyl) adipate in retail packed lunches after prohibition of DEHP-containing PVC gloves for cooking purposes. J Food Hyg Soc Jpn 42:128–132
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The study was supported by the Czech National Agency for Agricultural Research (NAZV ČR), project no. QG60066/2005.
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Jarošová, A., Harazim, J., Krátká, L. et al. Screening of phthalic acid esters in raw materials, premixes and feed additives. Environ Chem Lett 8, 387–391 (2010). https://doi.org/10.1007/s10311-009-0237-7
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DOI: https://doi.org/10.1007/s10311-009-0237-7