Concentrations of Cd, Cu, Pb and Zn in soft tissue of oyster (Saccostrea cucullata) collected from the Lengeh Port coast, Persian Gulf, Iran: A comparison with the permissible limits for public health

Heidari, Behnam; Bakhtiari, Alireza Riyahi; Shirneshan, Golshan

doi:10.1016/j.foodchem.2013.06.002

Cited by 20 publications

(6 citation statements)

References 22 publications

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“…Another study covering major green tea producing countries like China and Japan documented a wide range (18.7–51.0 mg kg −1 ) of Zn content ( Fernández-Cáceres et al, 2001 ). The Zn contents in all green tea samples were lower than the limit set by International Turkish Standard (50 mg kg −1 ); Brazilian Ministry of Health (250 mg kg −1 ); Australian Legal Requirements (750 mg kg −1 ); Ministry of Public Health, Thailand (667 mg kg −1 ); and WHO (200–500 mg kg −1 ) ( Heidari, Bakhtiari, & Shirneshan, 2013 ). Among the studied elements, the average transfer of Zn into infusion was observed highest which were 35.99% for OGT and 49.07% for CGT.…”

Section: Resultsmentioning

confidence: 89%

Impact of processing method on selected trace elements content of green tea: Does CTC green tea infusion possess risk towards human health?

et al. 2021

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Section: Resultsmentioning

confidence: 89%

Impact of processing method on selected trace elements content of green tea: Does CTC green tea infusion possess risk towards human health?

et al. 2021

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“…With respect to the fish and shellfish group, in the fish subgroup, the values of Pb exceeding ML concentrations ranged from 0.35 ppm to 20.15 ppm, and the highest value was reported in Nigeria, whose sample was obtained from effluents from university and fishing activities [ 51 ]. Mollusks exceeding MLs were only found in Iran (mean = 11.3 ppm), whose sample originated from an area with anthropogenic polluting activities [ 62 ]. Exceeding MeHg MLs for tuna were found in Italy (mean = 1.7 ppm) [ 98 ], and in Mexico for shark (mean = 1.65 ppm) [ 181 ].…”

Section: Resultsmentioning

confidence: 99%

“…Some of the studies included in this ScR that reported HM concentrations exceeded the FAO/OMS MLs; had samples that obtained from polluted or contaminated areas, such as with Pb and Cd in China [ 126 ], whose vegetable food group sample was obtained from a coal-mining city, or with Pb for the mollusks subgroup in Iran, whose sample was obtained from an area with anthropogenic polluting activities [ 62 ]. It is important to highlight that the articles included in this review evaluated only food for human consumption, so it is a major concern that areas known to be contaminated are food-producing areas.…”

Section: Discussionmentioning

confidence: 99%

Heavy Metals in Unprocessed or Minimally Processed Foods Consumed by Humans Worldwide: A Scoping Review

Collado-López

Betanzos-Robledo

Téllez-Rojo

et al. 2022

IJERPH

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Heavy metals (HMs) can be accumulated along the food chain; their presence in food is a global concern for human health because some of them are toxic even at low concentrations. Unprocessed or minimally processed foods are good sources of different nutrients, so their safety and quality composition should be guaranteed in the most natural form that is obtained for human consumption. The objective of this scoping review (ScR) is to summarize the existing evidence about the presence of HM content (arsenic (As), lead (Pb), cadmium (Cd), mercury (Hg) and aluminum (Al)) in unprocessed or minimally processed foods for human consumption worldwide during the period of 2011–2020. As a second objective, we identified reported HM values in food with respect to Food and Agriculture Organization of the United Nations (FAO) and the World Health Organization (WHO) International Food Standards for Maximum Limits (MLs) for contaminants in food. This ScR was conducted in accordance with the Joanna Briggs Institute (JBI) methodology and PRISMA Extension for Scoping Reviews (PRISMA-ScR); advance searches were performed in PubMed, ScienceDirect and FAO AGRIS (Agricultural Science and Technology Information) databases by two reviewers who independently performed literature searches with specific eligibility criteria. We classified individual foods in food groups and subgroups according to the Global Individual Information Food Consumption Data Tool (FAO/WHO GIFT). We homologated all the reported HM units to parts per million (ppm) to determine the weighted mean HM concentration per country and food group/subgroup of the articles included. Then, we compared HM concentration findings with FAO/WHO MLs. Finally, we used a Geographic Information System (GIS) to present our findings. Using our search strategy, we included 152 articles. Asia was the continent with the highest number of publications (n = 79, 51.3%), with China being the country with the largest number of studies (n = 34). Fish and shellfish (n = 58), followed by vegetables (n = 39) and cereals (n = 38), were the food groups studied the most. Fish (n = 42), rice (n = 33) and leafy (n = 28) and fruiting vegetables (n = 29) were the most studied food subgroups. With respect to the HMs of interest, Cd was the most analyzed, followed by Pb, As, Hg and Al. Finally, we found that many of the HM concentrations reported exceeded the FAO/OMS MLs established for Cd, Pb and As globally in all food groups, mainly in vegetables, followed by the roots and tubers, and cereals food groups. Our study highlights the presence of HMs in the most natural forms of food around the world, in concentrations that, in fact, exceed the MLs, which affects food safety and could represent a human health risk. In countries with regulations on these topics, a monitoring system is recommended to evaluate and monitor compliance with national standards. For countries without a regulation system, it is recommended to adopt international guidelines, such as those of FAO, and implement a monitoring system that supervises national compliance. In both cases, the information must be disseminated to the population to create social awareness. This is especially important to protect the population from the consumption of internal production and for the international markets of the globalized world.

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“…44 Determining the content of trace elements in tissues is still a subject of research, though environmental contamination due to metal ions and the bioaccumulation ratio needs to be assessed as well. 45,46 The level of trace elements in tissue is a reflection of the general health and metabolic status of the individual. 47 The level of metal ions significantly depends on the type and location of the tissue being measured.…”

Section: Discussionmentioning

confidence: 99%

Venous insufficiency: Differences in the content of trace elements. A preliminary report

Rusak¹,

Karuga-Kuźniewska²,

Wiatrak³

et al. 2018

Adv Clin Exp Med

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Background. Venous insufficiency is still a serious clinical problem. The exact cause and molecular mechanisms of this disease are still unknown. In this study, we try to identify whether there is a difference in the level of trace elements between healthy and pathological veins. Our results show that insufficient veins have different levels of some trace elements: magnesium, calcium, manganese, and silicon compared to control samples. This study could lead to a better understanding of the molecular causes of venous insufficiency and may help to develop better methods of treatment.

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Concentrations of Cd, Cu, Pb and Zn in soft tissue of oyster (Saccostrea cucullata) collected from the Lengeh Port coast, Persian Gulf, Iran: A comparison with the permissible limits for public health

Cited by 20 publications

References 22 publications

Impact of processing method on selected trace elements content of green tea: Does CTC green tea infusion possess risk towards human health?

Impact of processing method on selected trace elements content of green tea: Does CTC green tea infusion possess risk towards human health?

Heavy Metals in Unprocessed or Minimally Processed Foods Consumed by Humans Worldwide: A Scoping Review

Venous insufficiency: Differences in the content of trace elements. A preliminary report

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