16. Metal Exposure from Canned Tuna: A Safety Assessment

Cassandra Marsh Butler University, Bretta Tate Butler University
Faculty Sponsor(s): Olujide Akinbo Butler University
Fish are known to have great health benefits, especially the omega-3 fatty acids that aid in cardiovascular health and neurodevelopment. However, there has always been much debate about whether the health benefits outweigh the risks of metal exposure. Metals such as selenium, manganese and copper are commonly studied due to their bioaccumulation and toxicities. Concentrations of metals in fishes vary depending on species, age, developmental stage, and other physiological factors. Tuna, especially, contains high concentrations of metals as it preys on other smaller fishes. Consumption of canned tuna fishes is prevalent. In this study, the metal content of canned tuna from several commercial sources were analyzed using Inductively Coupled Plasma Mass Spectrometry (ICP-MS). The goal of this study is to evaluate human exposure to trace elements through consumption of canned fishes. Also, exposure from variety of brands will be compared. Preliminary results have shown that six out of fourteen tuna samples contain over 200% of the recommended daily allowance (RDA) of selenium. These six samples also have less than 2% of the RDA of manganese and 0.7-6.3% of the RDA of copper.

Chemistry
Poster Presentation

When & Where

Irwin Library 1st Floor