Published July 12, 2023
| Version v1
Journal
Open
Effects of Age, Fulton's Condition Index (K) and Muscle Fat on Total Mercury Content in Raw, Pre-Canning and Canned Samples of Atlantic Bluefin Tuna (Thunnus thynnus)
Authors/Creators
- 1. DVM Practitioner, Independent Researcher, 09016 Iglesias, Italy
- 2. Department of Agricultural Sciences, University of Sassari, 07100 Sassari, Italy
- 3. Department of Veterinary Medicine, University of Sassari, 07100 Sassari, Italy
- 4. Environmental Chemistry Unit, Istituto Zooprofilattico Sperimentale della Sardegna, 07100 Sassari, Italy
- 5. Istituto Zooprofilattico Sperimentale della Sardegna G Pegreffi, Università degli Studi di Cagliari
- 6. Università degli Studi di Sassari
- 7. Istituto Zooprofilattico Sperimentale della Sardegna
Description
Abstract
A total of 30 samples of Atlantic bluefin tuna were analysed for total mercury concentration. Relationships between total mercury content and age, Fulton’s condition index (K) and fat content were statistically evaluated. The effect of muscle status (raw, pre-canning, canned) on mercury content was also investigated. The average total mercury content was: 1.185 ± 0.662 mg/kg in raw, 1.481 ± 0.893 mg/kg in pre-canning and 1.393 ± 0.882 mg/kg in canned samples, respectively. Canning promotes a statistically significant increase in the concentration of mercury. The weight of fish, K and fat content are useful tools to estimate the mercury accumulation in Atlantic bluefin tuna. The results of the present study represent a contribution to the assessment of the EU mercury levels in Atlantic bluefin tuna.
Files
Chessa.pdf
Additional details
Identifiers
- PMID
- 37509777
- DOI
- 10.3390/foods12142686
Funding
- Istituto Zooprofilattico Sperimentale della Sardegna