Contamination levels for lead, cadmium and mercury in marine gastropods, echinoderms and tunicates

Noël, Laurent; Testu, Christian; Chafey, Claude; Velge, Pierre; Guérin, Thierry

doi:10.1016/j.foodcont.2010.09.021

Cited by 29 publications

(15 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The levels of TMC found in this study were in general higher than concentrations found in bivalves (except for Fe and Al) from the same region (Giarratano et al 2013). In comparison to other species of gastropods, TCM levels in the harbour area were similar or slightly higher than those found in Nacella magellanica from the Beagle Chanel, Argentina and lower (except for Cd) than those found in different species of gastropods around the world such as Patella caerulea Linnaeus, 1758, Littorina littorea (Linnaeus, 1758), Buccinum undatum Linnaeus, 1758, Haliotis tuberculata Linnaeus, 1758 and Bolinus brandaris (Linnaeus, 1758), among others (Yüzereroğlu et al 2010;Noël et al 2011;Bille et al 2015;Lahbib et al 2016).…”

Section: Metals In Gastropodsmentioning

confidence: 49%

High bioaccumulation of cadmium and other metals in Patagonian edible gastropods

Primost

Gil

Bigatti

2017

Marine Biology Research

View full text Add to dashboard Cite

High concentrations of metals are accumulated by edible marine resources, affecting human health. Marine gastropods have been commercially captured and consumed in Argentina for decades without official regulations or studies to guarantee their safety. In this study, metals (cadmium, aluminium, iron, zinc, copper and lead) were analysed for the first time in the edible marine gastropods Buccinanops globulosus, Adelomelon ancilla and Trophon geversianus and their surrounding sediments. Taking into account the maximum levels recommended by national and international regulations for food safety, we recommend consuming only the foot of these gastropod species. We recommend not consuming these gastropods from harbour areas due to concentrations of lead in sediments and tissues. Though the target hazard quotient (THQ) of cadmium was not high for the local community, it could be higher for other populations who consume molluscs more frequently, indicating a potential health risk of chronic exposure. Monitoring of these and other contaminants should be performed in order to ensure food safety of these marine resources. ARTICLE HISTORY

show abstract

Section: Metals In Gastropodsmentioning

confidence: 49%

High bioaccumulation of cadmium and other metals in Patagonian edible gastropods

Primost

Gil

Bigatti

2017

Marine Biology Research

View full text Add to dashboard Cite

show abstract

“…Sea cucumbers are species of echinoderm with mucous skin, which can potentially accumulate heavy metals by absorption from the polluted sediments in the sea (Luo et al, 2010;Wang et al, 2015;Zhang et al, 2016). The consumption of the sea cucumbers containing high level of heavy metals may potentially cause serious negative impacts on health, since they are persistent, bioaccumulative and toxic (King et al, 2010;Nghia et al, 2009;Noël et al, 2011). Therefore, it is important to ensure that the heavy metals in sea cucumbers which are sold for consumption remain below the maximum residue limits (MRLs) for Food Safety Standards.…”

Section: Introductionmentioning

confidence: 99%

Distribution and Chemoenzymatic Removal of Heavy Metals in Sea Cucumber <i>Acaudina leucoprocta</i>

Lin

Chen

Jia

et al. 2018

FSTR

View full text Add to dashboard Cite

Sea cucumbers are traditional marine food in Asian countries. In this work, the chemical elements accumulated in sea cucumber Acaudina leucoprocta from the East China Sea were measured and analyzed. The contents of Zn, Mn, Cu, As, Pb, Cd and Cr increased with the increase of weight of A. leucoprocta. The levels of Pb and As in all the examined individuals were higher than the maximum residue limits (MRLs) permitted in foodstuffs. The metals were found to be selectively distributed in the body compartments of A. leucoprocta. The highest contents of heavy metals As, Pb were found in intestines and body wall, while the lowest in anus and internal organ. An efficient chemoenzymic method by combining proteolytic enzymatic hydrolysis with citric acid soaking was established to remove the heavy metals in sea cucumber A. leucoprocta. The concentrations of both As and Pb were decreased to below 0.5 mg kg _ 1 in all the samples.

show abstract

“…As filter feeders, bivalves are more likely to ingest particulate lead than herbivorous gastropods. Average Pb concentration was 0.04 mg/kg in abalone (H. tuberculata) (Noel et al 2011). It is recommended not to consume more than one kilogram of T. militaris in a day to maintain a daily lead intake below the recommended level.…”

Section: Discussionmentioning

confidence: 99%

Investigation of nutritional properties of three species of marine turban snails for human consumption

Lah

Smith

Savins

et al. 2016

Food Science & Nutrition

View full text Add to dashboard Cite

Turban snails (family Turbinidae) are gastropod molluscs that are harvested for human consumption yet little is known about the nutritional properties of these snails, particularly from Australian waters. This study compares the proximate composition (ash, moisture, protein, and lipid content), fatty acid profiles, mineral, and trace element content of three species of turbinid snails; Turbo militaris, Lunella undulata, and Lunella torquata from northern New South Wales, Australia. They were all found to have relatively high protein in their flesh (16.0% to 18.5% of the fresh weight). L. torquata had a significantly higher lipid content (8.5% w/w) than L. undulata (5.2% w/w), whereas T. militaris (5.6% w/w) was not significantly different to either. Analysis with gas chromatography showed there was no significant difference in monounsaturated fatty acid (MUFA) content, with an average of approximately 14% of the total fatty acids in all three species. However, saturated fatty acids (SFA) were significantly higher in T. militaris (41%), whereas polyunsaturated fatty acids (PUFA) were significantly higher in L. undulata (46%). The ratio of n−3/n−6 fatty acids ranged from 1.1 in T. militaris to 1.4 in L. torquata, which is good for human health and comparable to other high value gastropods. The results indicate that T. militaris, L. undulata, and L. torquata provide a good source of essential elements such as zinc, selenium, and iron. At the location studied, toxic metals and metalloids were below safe recommended standards for human consumption. Overall, this study confirms the suitability of turban snails as a nutritional food for human consumption.

show abstract

Contamination levels for lead, cadmium and mercury in marine gastropods, echinoderms and tunicates

Cited by 29 publications

References 13 publications

High bioaccumulation of cadmium and other metals in Patagonian edible gastropods

High bioaccumulation of cadmium and other metals in Patagonian edible gastropods

Distribution and Chemoenzymatic Removal of Heavy Metals in Sea Cucumber <i>Acaudina leucoprocta</i>

Investigation of nutritional properties of three species of marine turban snails for human consumption

Contact Info

Product

Resources

About