PMID- 28672725 OWN - NLM STAT- MEDLINE DCOM- 20171006 LR - 20230120 IS - 1879-1298 (Electronic) IS - 0045-6535 (Linking) VI - 184 DP - 2017 Oct TI - Pyrethroids in chicken eggs from commercial farms and home production in Rio de Janeiro: Estimated daily intake and diastereomeric selectivity. PG - 1261-1269 LID - S0045-6535(17)31013-5 [pii] LID - 10.1016/j.chemosphere.2017.06.109 [doi] AB - In this study, pyrethroids were determined in chicken eggs from commercial farm (n = 60) and home egg production (n = 30). These pyrethroids were investigated: bifenthrin, phenothrin, permethrin, cyfluthrin, cypermethrin and fenvalerate, including most diastereomers. Quantification was done using GC-MS in a negative chemical ionization mode. Pyrethroids residues were found in 79% of the analyzed samples. Cypermethrin presented the highest occurrence, being quantified in 62 samples (69%) in concentrations (lipid weight - l w.) varying between 0.29 and 6408 ng g(-1), followed by phenothrin (24%), 21-3910 ng g(-1), permethrin (14%), 2.96-328 ng g(-1), and bifenthrin (11%), 3.77-16.7 ng g(-1). Cyfluthrin and fenvalerate were not detected. Home-produced eggs had a higher occurrence of pyrethroids (97%), with a greater predominance of phenothrin. In commercial production, 70% of the samples presented pyrethroid residues (predominantly cypermethrin). This is the first report about the presence of pyrethroids in home-produced eggs and the first description of a selectivity pattern with the predominance of cis diastereomers in chicken eggs. In general, estimated daily intake does not present a risk to human consumption, according to Brazilian and international standards (FAO/WHO). However, one third of the samples (30 eggs) had concentrations above the maximum residue limits (MRLs). The maximum cypermethrin concentration was 66 times the MRL, while the maximum phenothrin concentration was 11 times the limit. Further studies about transfer dynamics, bioaccumulation and metabolic degradation of stereoisomers are required, as well as determining if this selectivity pattern in food can increase consumer's health risk. CI - Copyright (c) 2017 Elsevier Ltd. All rights reserved. FAU - Parente, Claudio E T AU - Parente CET AD - Laboratorio de Radioisotopos, Instituto de Biofisica, Centro de Ciencias da Saude, Universidade Federal do Rio de Janeiro. Av. Carlos Chagas Filho S/n, Bloco G, Sala 60, Subsolo, Cidade Universitaria, Rio de Janeiro 21941-902, Brazil. Electronic address: cparente@biof.ufrj.br. FAU - Lestayo, Julliana AU - Lestayo J AD - Laboratorio de Radioisotopos, Instituto de Biofisica, Centro de Ciencias da Saude, Universidade Federal do Rio de Janeiro. Av. Carlos Chagas Filho S/n, Bloco G, Sala 60, Subsolo, Cidade Universitaria, Rio de Janeiro 21941-902, Brazil. FAU - Guida, Yago S AU - Guida YS AD - Laboratorio de Radioisotopos, Instituto de Biofisica, Centro de Ciencias da Saude, Universidade Federal do Rio de Janeiro. Av. Carlos Chagas Filho S/n, Bloco G, Sala 60, Subsolo, Cidade Universitaria, Rio de Janeiro 21941-902, Brazil. FAU - Azevedo-Silva, Claudio E AU - Azevedo-Silva CE AD - Laboratorio de Radioisotopos, Instituto de Biofisica, Centro de Ciencias da Saude, Universidade Federal do Rio de Janeiro. Av. Carlos Chagas Filho S/n, Bloco G, Sala 60, Subsolo, Cidade Universitaria, Rio de Janeiro 21941-902, Brazil. FAU - Torres, Joao Paulo M AU - Torres JPM AD - Laboratorio de Radioisotopos, Instituto de Biofisica, Centro de Ciencias da Saude, Universidade Federal do Rio de Janeiro. Av. Carlos Chagas Filho S/n, Bloco G, Sala 60, Subsolo, Cidade Universitaria, Rio de Janeiro 21941-902, Brazil. FAU - Meire, Rodrigo O AU - Meire RO AD - Laboratorio de Radioisotopos, Instituto de Biofisica, Centro de Ciencias da Saude, Universidade Federal do Rio de Janeiro. Av. Carlos Chagas Filho S/n, Bloco G, Sala 60, Subsolo, Cidade Universitaria, Rio de Janeiro 21941-902, Brazil. FAU - Malm, Olaf AU - Malm O AD - Laboratorio de Radioisotopos, Instituto de Biofisica, Centro de Ciencias da Saude, Universidade Federal do Rio de Janeiro. Av. Carlos Chagas Filho S/n, Bloco G, Sala 60, Subsolo, Cidade Universitaria, Rio de Janeiro 21941-902, Brazil. LA - eng PT - Journal Article DEP - 20170627 PL - England TA - Chemosphere JT - Chemosphere JID - 0320657 RN - 0 (Insecticides) RN - 0 (Nitriles) RN - 0 (Pyrethrins) RN - 1TR49121NP (cypermethrin) RN - 509F88P9SZ (Permethrin) RN - 6B66JED0KN (bifenthrin) RN - 707484X33X (phenothrin) RN - SCM2QLZ6S0 (cyfluthrin) RN - Z6MXZ39302 (fenvalerate) SB - IM MH - Animals MH - Brazil MH - Chickens/metabolism MH - Diet/statistics & numerical data MH - Eggs/*analysis MH - Environmental Exposure/*statistics & numerical data MH - *Farms MH - Gas Chromatography-Mass Spectrometry MH - Humans MH - Insecticides/*analysis MH - Nitriles MH - Permethrin/analysis MH - Pyrethrins/*analysis/metabolism OTO - NOTNLM OT - Agrochemicals OT - Cypermethrin OT - Diastereomers OT - Food contamination OT - Laying hens OT - Pesticides EDAT- 2017/07/05 06:00 MHDA- 2017/10/07 06:00 CRDT- 2017/07/05 06:00 PHST- 2017/05/04 00:00 [received] PHST- 2017/06/22 00:00 [revised] PHST- 2017/06/26 00:00 [accepted] PHST- 2017/07/05 06:00 [pubmed] PHST- 2017/10/07 06:00 [medline] PHST- 2017/07/05 06:00 [entrez] AID - S0045-6535(17)31013-5 [pii] AID - 10.1016/j.chemosphere.2017.06.109 [doi] PST - ppublish SO - Chemosphere. 2017 Oct;184:1261-1269. doi: 10.1016/j.chemosphere.2017.06.109. Epub 2017 Jun 27.