title: Evaluation of dietary exposure to minerals, trace elements and heavy metals from the muscle tissue of the lionfish Pterois volitans (Linnaeus 1758).
abstract: Twenty-five samples of Pterois volitans caught in Jamaican waters were analyzed for 25 essential, non-essential and toxic elements using Graphite Furnace Atomic Absorption Spectrophotometry (GF-AAS), Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES) and Instrumental Neutron Activation Analysis (INAA). The mean values for calcium (355 mg/kg), copper (107 μg/kg), iron (0.81 mg/kg), potassium (3481 mg/kg), magnesium (322 mg/kg), manganese (0.04 mg/kg), selenium (0.47 mg/kg), sodium (700 mg/kg) and zinc (4.46 mg/kg) were used to estimate dietary intake. The percentage contribution to provisional tolerable weekly intake for a 70 kg male and a 65 kg female were also estimated for the toxic elements arsenic (1.28% M, 1.38% F), cadmium (0.26% M. 0.28% F), mercury (3.85% M, 4.15% F) and lead (0.17% M, 0.18% F). To further assess the risk of mercury toxicity and the role of mitigation provided by selenium, selenium-mercury molar ratios were calculated for all samples. All samples were shown to have a molar excess of selenium. In addition the suggested selenium health benefit value was calculated, and was positive for all samples. It was concluded that P. volitans appears to contribute modestly to mineral and trace element nutrition, while not being a significant contributor to dietary exposure of toxic elements.
authors.affiliation: International Centre for Environmental and Nuclear Sciences, University of The West Indies, 2 Anguilla Close, Mona, Kingston 7, Jamaica.
authors.forename: Leslie A
authors.initials: LA
authors.lastname: Hoo Fung
authors.forename: Johann M R
authors.initials: JM
authors.lastname: Antoine
authors.forename: Charles N
authors.initials: CN
authors.lastname: Grant
authors.forename: Dayne St A
authors.initials: DS
authors.lastname: Buddo
mesh_terms: D000818:Animals; D001151:Arsenic / Q000032:analysis; D002104:Cadmium / Q000032:analysis; D003257:Consumer Product Safety; D003300:Copper / Q000032:analysis; D004032:Diet; D004781:Environmental Exposure; D005260:Female; D005399:Fishes; D005506:Food Contamination / Q000032:analysis*; D006801:Humans; D007501:Iron / Q000032:analysis; D007563:Jamaica; D008274:Magnesium / Q000032:analysis; D008297:Male; D008345:Manganese / Q000032:analysis; D008460:Meat / Q000032:analysis*; D008628:Mercury / Q000032:analysis; D019216:Metals, Heavy / Q000032:analysis*; D011786:Quality Control; D017747:Seafood; D012643:Selenium / Q000032:analysis; D013054:Spectrophotometry, Atomic; D014131:Trace Elements / Q000032:analysis; D015032:Zinc / Q000032:analysis
chemical_list: D019216:Metals, Heavy; D014131:Trace Elements; D002104:Cadmium; D008345:Manganese; D003300:Copper; D007501:Iron; D008628:Mercury; D012643:Selenium; D008274:Magnesium; D015032:Zinc; D001151:Arsenic
keywords: Dietary exposure; Food safety; Heavy metals; Jamaica; Lionfish; Trace elements