THE INFLUENCE OF THE CONCENTRATION OF MONTMORILLONITE CONTAINING SORBENT AND pH OF THE CULTURE MEDIUM ON THE ANTIBIOTIC SENSITIVITY OF ESCHERICHIA COLI, AS WELL AS THE EFFECT OF GROUND ON GROWTH OF ESCHERICHIA

Bukhanov, V. D.; Vezentsev, A. I.; Филиппова, О. В.; Nadezhdin, Sergey; Pankova, O.N.; Firsova, T.I.; Mikhailyukova, Mariya О.; Tishin, A.N.

doi:10.18413/2500-235x-2017-3-1-97-104

Cited by 1 publication

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“…Illite and smectite reduce mucus destruction by bacteria and improves nutrient absorption [66]. It is also reported a great capacity of adsorption of S. enteritidis, E. coli, V. cholerae, C. jejuni, C. difficile, Shigella sonnei, eliminating up to 90% of their viral particles [67], as well as on the cure of acute diarrhea [68]. However, prolonged consumption of these clays can trigger health problems, as previously described by [34,[68][69][70].…”

Section: Resultsmentioning

confidence: 99%

Geophagic Materials Characterization and Potential Impact on Human Health: The Case Study of Maputo City (Mozambique)

2022

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This study aims to characterize and estimate risk assessment associated with geophagic materials consumption in Maputo city (Mozambique). Samples were collected in extraction mines, unprepared and prepared ones, and in Maputo markets. Fractions < 2 mm (total consumed material) and <63 μm were analyzed to determine pH, EC, OM, chemical composition (XRF), and mineral phases present (XRD). The results revealed pH from slightly acidic to slightly alkaline, and electrical conductivity ranging from 13 to 47 μS/cm in mine unprepared and prepared samples, while 264–465 μS/cm in sampled sold in markets. Organic matter content was <2.76%, except in one sample (8.14%), suggesting a potential risk of containing bacteria. Textural analysis revealed that sand-size particles were more representative in all samples (57.2–93.02%). Mineralogical phases identified in the consumed sample were ranked quartz (>60%) > Fe oxides/hidroxides > phyllosilicates (micas and kaolinite) > feldspars, suggesting a risk of dental enamel damage and perforation of the sigmoid colon. The chemical concentration of some elements was higher than recommended daily dose, suggesting a potential risk. However, geophagic materials’ chemical composition does not pose a carcinogenic risk.

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