Chemical content of five molluscan bivalve species collected from south korea: Multivariate study and safety evaluation

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Abstract

Bivalves are a good source of nutrients but also a potential source of environmental contaminants, which could pose a risk for consumers. The aims of this study were: the determination of 16 elements by ICP-MS in 48 samples of five bivalve species purchased from market in Korea; the identification of elements useful for species classification using multivariate analyses; and the benefit-risk evaluation associated to the consumption of these bivalves. The highest difference among content of elements between species was found for Cd, Mn, Ni, Zn, and Fe. Partial last squares discriminant analysis revealed elements with a VIP score >1 which were considered as the most relevant for explaining certain species. As, Cd, Co, and Ni were found as taxonomical markers of V. philippinarum; Mn, Zn, Mg, and Na of A. irradians; and Cd, Ni, and Fe of M. yessoensis. These species could serve as good dietary sources of essential elements. Cd exposure by consumption of Manila clams is not representing a health risk for the Korean population; however, through consumption of Yesso scallops, 5.3% of the Korean population has a potential health risk. Removal of the digestive gland before eating will drastically reduce the amount of Cd ingested.

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Mutić, J., Jovanović, V., Jacxsens, L., Tondeleir, J., Ristivojević, P., Djurdjić, S., … Veličković, T. Ć. (2021). Chemical content of five molluscan bivalve species collected from south korea: Multivariate study and safety evaluation. Foods, 10(11). https://doi.org/10.3390/foods10112690

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