Element Contents in Three Commercially Important Edible Mollusks Harvested off the Southwestern Coast of Crimea (Black Sea) and Assessment of Human Health Risks from Their Consumption.

Sergey V Kapranov,Vitaliy I Ryabushko,Nikolay I Bobko,Larisa L Kapranova,Nadezhda V Karavantseva

doi:10.3390/foods10102313

Sergey V Kapranov, Vitaliy I Ryabushko + Show 3 more

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https://doi.org/10.3390/foods10102313

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Journal: Foods (Basel, Switzerland)	Publication Date: Sep 29, 2021
Citations: 16	License type: CC BY 4.0

Affiliation: Marine Hydrophysical Institute

Abstract

Mollusks are a prospective food for the world’s growing population, but the contents of toxic and essential trace elements in them have not been studied comprehensively. In this work, using inductively coupled plasma mass spectrometry, the contents of 72 elements in soft tissues of the edible mollusks Mytilus galloprovincialis, Rapana venosa, and Crassostrea gigas from the coastal area of the southwestern Crimea were estimated and compared with the maximum permissible levels. Element accumulation similarities were observed in the two bivalve species. Cluster analysis applied to the non-normalized contents allowed finding an optimal number of non-overlapping element clusters: 1 group of macroelements, 1–2 groups of trace elements, and 1–2 groups of ultratrace elements. As an outcome of this analysis, the element accumulation universality index was introduced, which demonstrated the accumulation universality decrease in the order: mussel > sea snail > oyster. An original approach to estimating the mollusk consumption rate was proposed to assess human health risks. Two possible consumption scenarios were identified for Crimean residents. From the expected consumption of all species in both scenarios, there are no health risks, but they are not excluded, within the 95% probability, from high consumption of mussels and sea snails in the pessimistic scenario.

Highlights

From the United Nations report [1], the world population is projected to reach 9.8 billion in 2050, and the global food demand will steadily grow in the coming decades
From the perspective of new essential trace element discoveries and for an exhaustive assessment of human health risks due to the mollusk consumption, we report the contents of 72 elements in soft tissues of the mussel, oyster, and sea snail collected in one time period and at the same site in the northwestern Black Sea
To assess the inorganic micronutrient capacity and the trace element poisoning hazard to humans, we performed a comprehensive analysis of trace elements in soft tissues of three commercially important edible mollusks from the Crimean coastal zone in the Black Sea

Summary

Introduction

From the United Nations report [1], the world population is projected to reach 9.8 billion in 2050, and the global food demand will steadily grow in the coming decades. Fish and seafood products are the third major source of dietary proteins for human nutrition [2], and they currently account for 17% of the global yield of animal meat [3,4]. They are a rich source of polyunsaturated fatty acids, vitamins, and minerals [5], which are essential for human health. Though accounting for only 16% of the farmed seafood production (as of 2018) [2], has a remarkable incentive to increase its pace of growth because it provides a relatively cheap and affordable food [3], which will be of particular importance for the growing population of developing countries

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