BIOMONITORING OF SOME PERSISTENT ORGANOCHLORINE CONTAMINANTS IN THE MILK OF ANATOLIAN WATER BUFFALOES

Abstract

In this study, 50 raw milk samples of Anatolian water buffalo (Bubalus bubalis, Linneaus, 1758) belonging to different dairy farmers in the Kızılırmak Delta in Samsun, Turkey, were investigated for contamination by 9 organochlorine pesticides (OCPs) and 16 polychlorinated biphenyls (PCBs). The contaminants were extracted cryogenically from the milk fat and their concentrations were determined with a gas chromatography-electron capture detector (GC-ECD). The mean level of alpha-hexachlorocyclohexane (HCH) in the milk samples was 6.34 ng/g^/fat, beta-HCH was 20.41 ng/g/fat, gamma-HCH was 9.77 ng/g/fat, ∑DDTs was 18.11 ng/g/fat and ∑Indicator-PCBs was 127.27 ng/g/fat. The mean values, except for aldrin and ∑DDTs, were above the maximum residue limits (MRLs) stated in the European Commission (EC) Regulations and Turkish Food Codex (TFC). Regular monitoring and reporting of the levels of persistent organochlorines in the meat, milk and processed products of water buffaloes is essential for the assessment of human, animal and environmental health. 

Keywords

• Biomonitoring,organochlorine pesticides,polychlorinated biphenyls,water buffalo milk

ANADOLU MANDASI SÜTLERİNDE BAZI KALICI ORGANİK KLORLU KİRLETİCİLERİN BİYOİZLENMESİ

Abstract

Bu çalışmada, Samsun Kızılırmak deltasındaki farklı yetiştiricilere ait mandalardan (Bubalus bubalis, Linneaus, 1758) toplanan 50 çiğ süt örneğinde, çevresel kontaminasyonu belirlemek için 9 organik klorlu pestisit ve 16 poliklorlu bifenil bileşik kalıntısı araştırıldı. Süt yağından kriyojenik yöntemle ekstrakte edilen analitlerin düzeyleri elektron yakalama detektörlü gaz kromatografi (GC-ECD) ile ölçüldü. Süt örneklerinde ortalama alfa-HCH düzeyi 6.34 ng/g/yağ, ortalama beta-HCH 20.41 ng/g yağ, ortalama gamma-HCH 9.77 ng/g/yağ, ortalama ∑DDT 18.11 ng/g/yağ ve ortalama ∑İndikatör-PCB 127.27 ng/g/yağ olarak tespit edildi. Aldrin ve ∑DDT dışındaki miktarlar Avrupa Birliği Yönetmelikleri ve Türk Gıda Kodeksi’nde belirtilen değerlerin üzerinde bulundu. Çevrede uzun yıllar etkinliklerini koruyabilen kalıcı organik klorlu bileşiklerin mandalardan elde edilen et, süt ve işlenmiş hayvansal ürünlerde düzenli aralıklarla izlenmesi ve bildirilmesi insan, hayvan ve çevre sağlığının değerlendirilmesi açısından önemlidir.

Keywords

• Biyoizleme,organik klorlu pestisitler,poliklorlu bifeniller,manda sütü.

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