Heavy Metal Levels in Muscles Tissues of Some Marketed Crustacean and Molluscs species, in Mersin

Abstract

The study was carried out to determine the levels of Cr (total), Mn, Ni, As (total) and Sn in squid (Loligo vulgaris), cuttlefish (Sepia officinalis) and shrimp (Penaeus semisulcatus) from the markets of Mersin, Turkey. Metal analysis of the tissue samples were carried out using ICP-MS system. Cr (total), Mn, Ni, As (total) and Sn in tissue samples ranged between 0.05-2.23, 0.07-1.13, 0.01-0.81, 3.03-45.09 and 0.02-1.32 mg kg-1 wet weight (w.w.), respectively. Cr concentrations were found below the detectible limits in all P.semisulcatus samples. Avarage metal concentrations in all samples were found lower than the provisional tolerable daily and weekly intake levels (PTDI, PTWI) and seemes no risks for human consumption. But for S. officinalis, inorganic As levels found quite close the reference limit’s and can cause health problems to consumers, in routine and excess amounts of consumption. 

Keywords

• Seafood,heavy metal,food safety,molluscs

Mersin İlinde Tüketime Sunulan Kabuklu ve Yumuşakça Türlerinin Kas Dokularında Ağır Metal Düzeyleri

Öz

Bu çalışma kapsamında Mersin ilinde tüketime sunulan kalamar (Loligo vulgaris), sübye (Sepia officinalis) ve karides (Penaeus semisulcatus) türlerinin tüketilebilir kas dokuları Cr (toplam), Mn, Ni, As (toplam) ve Sn içerikleri yönünden incelenmiştir. Doku örneklerinde metal analizi İndüktif olarak eşleştirilmiş plazma-kütle spektrofotometresi (ICP-MS) sistemi ile belirlenmiştir. Doku örneklerinde Cr (toplam), Mn, Ni, As (toplam) ve Sn derişimleri sırasıyla 0,05-2,23, 0,07-1,13, 0,01-0,81, 3,03-45,09 ve 0,02-1,32 mg/kg yaş ağırlık (y.a.) olacak şekilde değişiklik göstermiştir. Cr derişimleri P. semisulcatus örneklerinin tümünde tespit edilebilir limitlerin altında bulunmuştur. Tüm örneklerde ortalama metal derişimlerinin, tolere edilebilir günlük ve haftalık limitlerin altında olduğu ve insan tüketimi açısından sorun teşkil etmeyeceği kanısına varılmıştır. Fakat, S. officinalis türünde inorganik arsenik içeriğinin referans değerlere oldukça yakın olduğu ve yüksek miktarlarda ve rutin tüketilmesi durumunda insan sağlığı açısından sorunlar teşkil edebileceği düşünülmektedir

Anahtar Kelimeler

• Su ürünleri,ağır metal,gıda güvenliği,yumuşakçalar

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