Assessment of heavy metals in raw food samples from open markets in two African cities

Nuapia, Yannick; Chimuka, Luke; Cukrowska, Ewa

doi:10.1016/j.chemosphere.2017.12.134

Cited by 58 publications

(24 citation statements)

References 12 publications

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“…In humans, Mn supports the formation of connective tissues, growth and maintenance of bones, carbohydrate and lipid metabolism, embryonic development of the inner ear, and reproductive functions. The recommended dietary intake and safe limits are 2 to 11 mg/day and 0.14 mg/kg, respectively (Nuapia et al 2018). In this Mbale dumpsite study, Mn concentrations in all crop parts (except Z. mays seeds) were higher than the safe limit and the reported values from previous studies (Table 3).…”

Section: Resultsmentioning

confidence: 99%

“…In this Mbale dumpsite study, Mn concentrations in all crop parts (except Z. mays seeds) were higher than the safe limit and the reported values from previous studies (Table 3). Excessive accumulation of Mn is associated with adverse health effects including cramps, tumors, dullness, weak bones, headaches, hallucinations, insomnia, magnetic pneumonia, renal degeneration, and neurotoxicity (El‐Jaoual and Cox 1998; Nuapia et al 2018).…”

Section: Resultsmentioning

confidence: 99%

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Occurrence of Trace Metals in Food Crops Grown on the Mbale Dumpsite, Uganda, and Human Health Risks

Awino

Maher

Krikowa

et al. 2020

Integr Envir Assess & Manag

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Food crops can be used as biomonitors to assess potential public health food safety hazards from contaminated agricultural environments. Globally, more than 800 million people grow fruits, vegetables, and grains on urban garden soils with unknown health risks. This worldwide practice has exposed consumers to pathogenic and carcinogenic risks from locally grown and imported contaminated foodstuffs such as Amaranthus cruentus and Zea mays, traditional and widely consumed crops across the globe. This study used Z. mays and A. cruentus crops to investigate the occurrence and spatial variations of aluminum (Al), chromium (Cr), iron (Fe), manganese (Mn), cobalt (Co), nickel (Ni), copper (Cu), zinc (Zn), arsenic (As), selenium (Se), cadmium (Cd), mercury (Hg), and lead (Pb) concentrations across the Mbale dumpsite, Uganda. Mean concentrations for Fe, Al, Zn, Mn, and Cu were high in both crops, whereas Pb, Cr, Co, Cd, As, Hg, Se, and Ni occurred in trace amounts. Using the 2 crops as biomonitors, significant variations for Al, Zn, Fe, Cr, and Co concentrations in individual crops were identified across the dump center, hill slope, and riverbank. The variations in Al, Zn, Fe, Cr, and Co concentrations were specific for crop types, crop parts, and location. The highest overall accumulation of metals was at the dump center and in crop leaves. Except Pb concentrations in Z. mays seeds, Cr, Pb, Zn, and Al concentrations in other crop parts were above World Health Organization/Food and Agricultural Organization consumer food safety limits. Therefore, Z. mays and A. cruentus consumption could pose health risks to consumers. Further health assessments and potential regulations are recommended to reduce potential health risks from metals in crops for human consumption. Integr Environ Assess Manag 2020;16:362-377.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Occurrence of Trace Metals in Food Crops Grown on the Mbale Dumpsite, Uganda, and Human Health Risks

Awino

Maher

Krikowa

et al. 2020

Integr Envir Assess & Manag

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“…If HQ is less than 1, adverse health effects would be unlikely to occur. On the other hand, if HQ is greater than 1, potential noncarcinogenic effects could occur (Nuapia et al, 2018). In this work, HQ was calculated based on (Zeng et al, 2015)…”

Section: Hq = Adi/rfdmentioning

confidence: 99%

Quantification of aluminum and heavy metal contents in cooked rice samples from Thailand markets using inductively coupled plasma mass spectrometry (ICP-MS) and potential health risk assessment

Rittirong

Saenboonruang²

2018

Emir J Food Agric

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This work quantified contents of Al and heavy metals, namely Cr, Fe, Cu, Zn, As, Cd, and Pb, in cooked rice samples prepared using five different cooking utensils (new and used Al cookers, a Teflon-coated Al cooker, a stainless steel cooker, and a glass beaker) and four different water conditions (tap water, de-ionized water, acidic water, and basic water) in order to assess metal leaching from cooking utensils and potential health risks to local consumers. The result showed that Al contents (76.50 mg kg-1 in raw rice and 76.83 mg kg-1 in cooked rice samples) and Zn contents (22.86 mg kg-1 in raw rice and 22.43 mg kg-1 in cooked rice samples) represented the two largest contents of tested elements, in which contents of Al > Zn > Fe > Pb ≈ Cu > Cr >As ≈ Cd. However, no strong indication of substantial metal leaching from cooking utensils to cooked rice were observed in this work as the metal contents in cooked rice samples did not significantly differ from raw rice grains (p < 0.05). The result also indicated that the estimated weekly intake of Al and Pb associated with rice consumption of a person who consumed approximately 0.3 kg of rice per day (181.07 mg kg-1 week-1 and 4.85 mg kg-1 week-1, respectively) was greater than the provisional tolerance weekly intake (PTWI) recommended by the joint FAO/WHO committee for a person who weighs 60 kg (120 mg kg-1 week-1 and 1.5 mg kg-1 week-1, respectively). In terms of the assessment of non-carcinogenic and carcinogenic health risks, the hazard index (HI) calculated from all concerned metals was 9.18, with the largest contributions from Pb (3.19), As (2.67), and Al (1.51), indicating a potential non-carcinogenic risk, while the total cancer risk (CRt) was 2.45´10-2, with the largest contributions from Pb (1.0´10-2) and Cd (1.2´10-2), indicating serious carcinogenic risks to local consumers.

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“…The treatments of some crucial diseases, especially metabolic disorders, hypertension, neurodegenerative, and inflammatory diseases, are closely related to the use of specific enzyme inhibitors . Some plant‐based bioactive phenolic compounds have been reported to be AChE inhibitors (AChEi) and may be useful in the treatment of AD symptoms . AChE takes charge of break up the acetylcholine in synaptic of the brain cleft.…”

Section: Introductionmentioning

confidence: 99%

Phytochemical Content, Antidiabetic, Anticholinergic, and Antioxidant Activities of Endemic Lecokia cretica Extracts

Aras

Bursal

Türkan

et al. 2019

Chemistry & Biodiversity

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The aim of this work was to investigate the enzyme inhibition, antioxidant activity, and phenolic compounds of Lecokia cretica (Lam.) DC. Acetylcholinesterase (AChE), butyrylcholinesterase (BChE), and α‐glycosidase enzymes were strongly inhibited by the L. cretica extracts. IC50 values for the three enzymes were found as 3.21 mg/mL, 2.1 mg/mL, and 2.07 mg/mL, respectively. Antioxidant activities were examined in both aqueous and ethanol (EtOH) extracts using CUPRAC, FRAP, and DPPH method. Also, the phenolic compounds of the endemic plant were identified and quantified by using HPLC/MS/MS. According to the results, the extracts have remarkable antioxidant activities. The most abundant phenolic acids of L. cretica in EtOH extract were determined as quinic acid (12.76 mg/kg of crude extract), chlorogenic acid (3.39 mg/kg), and malic acid (2.38 mg/kg).

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Assessment of heavy metals in raw food samples from open markets in two African cities

Cited by 58 publications

References 12 publications

Occurrence of Trace Metals in Food Crops Grown on the Mbale Dumpsite, Uganda, and Human Health Risks

Occurrence of Trace Metals in Food Crops Grown on the Mbale Dumpsite, Uganda, and Human Health Risks

Quantification of aluminum and heavy metal contents in cooked rice samples from Thailand markets using inductively coupled plasma mass spectrometry (ICP-MS) and potential health risk assessment

Phytochemical Content, Antidiabetic, Anticholinergic, and Antioxidant Activities of Endemic Lecokia cretica Extracts

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