In vitro release of aluminum from the geophagic clay "Chacco" in the Peruvian highlands: Chemical characterization and health risk assessment

Choquenaira-Quispe, Celia; Condori, Harry R Yucra; Salas, José Villanueva; Gonzales-Condori, Elvis Gilmar

doi:10.1080/03601234.2022.2161795

Cited by 4 publications

(5 citation statements)

References 52 publications

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“…The concentration of Al in the studied geophagic clay was far higher than the PMTDI for Al in edible foods (Table 2). Aluminum (Al) toxicity has been reported in many literature (Owumi and Oyelere, 2015;Tiegoum, 2017;Rohilla et al, 2020;Choquenaira-Quispe et al, 2023). Some of the debilitating effects of exposure to high Al This result was similar to that of Owumi & Oyelere (2015), who reported a >10-fold increase in the concentration of Al in their studied clays when compared with the highest desirable levels set by WHO/FAO (2004).…”

Section: Discussionsupporting

confidence: 60%

Elemental Composition and Physicochemical Properties of Geophagic Clay (‘Eko’), From Ubiaja in Edo State, Nigeria

EDENE

Aghedo

2023

OJER

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In Edo State, Nigeria, geophagia (‘Eko’) is highly prevalent, and men and women, especially pregnant women, are believed to indulge in its consumption as a remedy for vomiting (nausea) and some other related inconveniences in pregnancy. Others are due to a natural craving. These practices are associated with varying health complications; as such, it is pertinent that the physical and chemical composition of the clay be known. In this study, we assessed the levels of heavy metals and trace elements of clinical importance in ‘Eko’, as well as their physical and chemical properties using standard protocols. Tests conducted include: colour, pH, electrical conductivity (EC), cation exchange capacity (CEC), total dissolved solids (TDS), particle density, and concentrations of metals [chloride (Cl), sulphate (S), calcium (Ca), sodium (Na), magnesium (Mg), potassium (K), aluminium (Al), iron (Fe), copper (Cu), manganese (Mn), zinc (Zn), chromium (Cr), lead (Pb) and cadmium (Cd)]. The results obtained showed that some of the elements (Cl, Ca, Na and Mg) are present in moderate concentrations (353.33, 182.33, 216, 111.33 mg/kg) respectively. However, concentrations of some of the heavy metals [(Cd, Pb and Cr) (0.30, 0.26, 0.42 mg/kg) respectively], were higher than the permissible limits (65, 35, 25 µg/kg) set by WHO. Though some of the moderately present trace metals may play important biological roles, the high concentrations of some heavy metals could have detrimental health effects. Results from this study suggest that ‘Eko’ can predispose consumers to health hazards. As such, the continuous consumption of “Eko” should be discouraged

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Section: Discussionsupporting

confidence: 60%

Elemental Composition and Physicochemical Properties of Geophagic Clay (‘Eko’), From Ubiaja in Edo State, Nigeria

EDENE

Aghedo

2023

OJER

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“…On the other hand, the point of zero charge (pHPZC) was calculated. For this, we used the procedure developed by Choquenaira-Quispe et al [37]. The procedure consisted of measuring in 100 mL beakers a volume of 50 mL of a 0.1 M NaNO3 solution.…”

Section: G Characterization Of the Adsorbentmentioning

confidence: 99%

Valorization of grape seed waste for use in the production of antioxidant soaps and as an adsorbent for a textile dye

Alvarez-Gonzales,

Bejar-Aramburú,

Cama-Ortiz

et al. 2023

Proceedings of the 3rd LACCEI International Multiconference on Entrepreneurship, Innovation and Regional Development (LEIRD 202

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In most cases, waste from the wine industry is wasted, generating environmental pollution. For this reason, the objective of this research was to prepare soaps from the oil of these seeds for subsequent determination of the antioxidant capacity by the 2,2-Diphenyl-1-picrylhydrazyl (DPPH) assay, and with the residues generated from the extraction of the oil, the adsorbent potential of this residue for an anionic textile dye was evaluated. The results showed that the prepared liquid soap presented an antioxidant capacity corresponding to an IC50 of 3.33%. Higher antioxidant capacity was obtained in the solid soap with an IC50 of 0.075%. After the adsorption study of the anionic green acid dye 25 (AG25) with defatted grape seed residues, it was possible to remove 100% of the color from water contaminated with AG25 at a concentration of 30 mg/L at pH=2, a dosage of 0.5 g/L, and an agitation speed of 300 rpm for 120 minutes. The pseudo second order kinetic model was a better fit for the dye removal process thus evidencing that the adsorption mechanism involved is chemisorption. The results of the FTIR-ATR analysis showed that the original grape residue has OH, C-H, and C=O groups that are characteristic of the presence of oil in the seed, and after oil extraction the intensity of the vibrations of the C=O and C-H groups are reduced because the residue was defatted. After the adsorption of AG25, the C-H vibration became less intense. Finally, the point of zero charge of the grape seed variety Italia was 4.67, so the interaction between adsorbate-adsorbent would correspond to electrostatic attractions. The present study has shown that the grape seed variety Italia is a waste with biorefinery potential as it possesses antioxidant compounds found in soaps, which could economically benefit the wine industries, and at the same time, the degreased waste has a high capacity to remove dyes, being an environmentally friendly alternative that can be considered for the treatment of textile wastewater.

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“…There are not many studies on the characteristics of geophagic clay [9][10][11][12][13][14][15][16][17]. Geophagia is universally recognized as a deliberate habit of consuming earthy materials including clays, soils, and sediments [11].…”

Section: Introductionmentioning

confidence: 99%

“…Geophagia is universally recognized as a deliberate habit of consuming earthy materials including clays, soils, and sediments [11]. Choquenaira-Quispe et al [16] carried out a study on the characterization and health risks of geophagic clay. They indicated that a weekly intake of clay represented an appreciable health risk.…”

Section: Introductionmentioning

confidence: 99%

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Characterising the Physicochemical Properties of Selected Geophagic Clay from the Democratic Republic of Congo (DRC) to Investigate Their Potential Applications

Mubiayi,

Nkambule,

Mamba

2023

Asec 2023

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In vitro release of aluminum from the geophagic clay "Chacco" in the Peruvian highlands: Chemical characterization and health risk assessment

Cited by 4 publications

References 52 publications

Elemental Composition and Physicochemical Properties of Geophagic Clay (‘Eko’), From Ubiaja in Edo State, Nigeria

Elemental Composition and Physicochemical Properties of Geophagic Clay (‘Eko’), From Ubiaja in Edo State, Nigeria

Valorization of grape seed waste for use in the production of antioxidant soaps and as an adsorbent for a textile dye

Characterising the Physicochemical Properties of Selected Geophagic Clay from the Democratic Republic of Congo (DRC) to Investigate Their Potential Applications

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