Determination of trace elements, heavy metals, and antimony in polyethylene terephthalate–bottled local raw cow milk of Iğdır region in Turkey

Koyuncu, Mubin; Alwazeer, Duried

doi:10.1007/s10661-019-7851-z

Cited by 30 publications

(5 citation statements)

References 25 publications

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“…En la leche de seis granjas de cabras en Indonesia, el Pb se encontró a niveles entre 50 y 80 mg/kg, mientras que los niveles de As estuvieron entre 70 y 110 mg/kg (Wanniatie y col., 2019 cruda tenían Pb a niveles 2,5 veces superiores a los permitidos por las normas europeas. Además, el 100 % de las muestras presentaron contaminación a niveles superiores al máximo permitido (Koyuncu y Alwazeer, 2019).…”

Section: Discussionunclassified

Presencia de metales pesados en leche cruda bovina de Machachi, Ecuador

Cueva

Naranjo

Torres

et al. 2021

lgr

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La evaluación de metales pesados en leche puede considerarse como indicador de contaminación ambiental de un lugar, por lo que el objetivo de la investigación fue determinar la presencia de Plomo, Mercurio y Arsénico en leche cruda de Machachi, Provincia de Pichincha-Ecuador. Se recolectaron 58 muestras provenientes de 29 fincas lecheras con sistema de pastoreo extensivo y ubicadas hasta máximo un kilómetro a la redonda del Municipio de Machachi, donde existe actividad industrial y está cerca de la Panamericana Sur. Las muestras fueron analizadas mediante la técnica de espectrofotometría de absorción atómica por generador de hidruros (Mercurio y Arsénico) y con horno de grafito (Plomo). Todas las muestras analizadas mostraron niveles de Plomo, con una media de 0.208 mg/kg (rango entre 0.0016 a 0.719 mg/kg), de las cuales el 98.28% (57/58) contienen niveles superiores a los máximos permitidos por la NTE INEN 9 de 0.02 mg/kg. También se detectó Mercurio en cuatro muestras (media de 0.00009 mg/kg, rango entre 0.00 a 0.002 mg/kg) y Arsénico en dos muestras (media de 0.00003 mg/kg, rango 0.00 a 0.001 mg/kg), sin embargo, las mismas estuvieron por debajo del límite permitido por el Codex Alimentarius (0.01 mg/kg) en alimentos en general. Con los resultados obtenidos, se concluye que podría existir un área contaminada con Pb, por lo que se debe realizar un monitoreo continuo en leche, y ampliar la investigación a las posibles fuentes de contaminación, como agua de bebida, agua de riego, forrajes y alimentos que reciben las vacas lecheras de la zona.

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Section: Discussionunclassified

Presencia de metales pesados en leche cruda bovina de Machachi, Ecuador

Cueva

Naranjo

Torres

et al. 2021

lgr

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“…2) from the sun, supported by experiments from (Al-Khatim et al, 2019;Chapa-Martínez et al, 2016;Dogan and Cebi, 2019;Zmit and Belhaneche-Bensemra, 2019) which identified the significance of pH, temperature and days of exposure in the amount of Antimony leached into bottled water. The high level of the Antimony values can also be attributed to the type of plastics used by the different brands as identified by (Koyuncu and Alwazeer, 2019) who suspected reason for high Antimony levels in milk contained in PET bottles results from type and production processes employed in making containers. Qiao et al (2018) also recorded higher values of Antimony leached in drinking water bottles exposed to high temperatures.…”

Section: Antimonymentioning

confidence: 99%

Evaluation of Changes in Some Physico-Chemical Properties of Bottled Water Exposed to Sunlight in Bauchi, Nigeria

Daffi¹,

Wamyil²

2020

Preprint

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Abstract. It is common for bottled water and other assorted drinks to be seen displayed outside stores and in the sun in most parts of Nigeria. The country is mostly hot year-round and over the course of the year temperatures can rise to as high as 40 °C around March–April in the study area. The leaching effect of chemicals from polyethylene terephthalate (PET) bottled water was investigated for five (5) commercially available bottled water brands. Temperature, pH, Antimony, Bisphenol A and Nitrate levels were measured on day zero, 14 and 28 for control samples and samples exposed to direct sunlight, using destructive sampling technique. The study found that pH for brands B and D were lower than the Nigerian Standard for Drinking Water Quality (NSDWQ) and United States Environmental Protection Agency (US EPA) regulations at day zero. The control sample for Brand A maintained pH within the guideline values for 0–28 days while all Brands exposed to sunlight for 14 and 28 days had lower values than specified. Antimony was not detected in brands A, B and E in the baseline measurement at day zero while brands C and D had low values; after 28 days all the control samples still had Antimony levels within the US EPA standard. Meanwhile all the samples exposed to sunlight exceeded US EPA standard levels at 14 and 28days except brand A which was within limit at 14 days with value of 4.59 µg/L. All control and exposed samples were below the European Union Drinking Water Directive (EU DWD) total daily intake (TDI) of Bisphenol A (0.05 mg/kg body weight/day). Values obtained for Nitrate showed that all control samples did not exceed the US EPA guideline level for Nitrates in drinking water for 0, 14 ad 28 days while three (3) of the samples, Brands C, D and E, exceeded the guideline level at 28 days. Expose of bottled water to sunlight was seen to impair the quality of the water for consumption. It is recommended that regulators and practitioners drive implementation of proper storage/retailing of bottled water products and improve legislation on manufacture of plastics for food contact products.

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“…The main sources of antimony causing its widespread pollution are the production of semiconductors and batteries, textiles, glass and ceramics and the action of coal-fired power plants and metal mining enterprises [3]. Another way Sb 3+ enters into the human body is its release from polyethylene terephthalate packages, whose production requires antimony (III) oxide [4,5]. Upon entry to the human body through the respiratory tract, skin contact or the food chain, antimony degrades protein and carbohydrate metabolism and damages the liver, heart and nervous system [6], which confirms the demand for monitoring drinking water to assess the content of heavy metal ions [7], in particular antimony.…”

Section: Introductionmentioning

confidence: 99%

Sensitive Silver-Enhanced Microplate Apta-Enzyme Assay of Sb3+ Ions in Drinking and Natural Waters

Komova,

Serebrennikova,

Berlina

et al. 2023

Molecules

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The toxic effects of antimony pose risks to human health. Therefore, simple analytical techniques for its widescale monitoring in water sources are in demand. In this study, a sensitive microplate apta-enzyme assay for Sb3+ detection was developed. The biotinylated aptamer A10 was hybridized with its complementary biotinylated oligonucleotide T10 and then immobilized on the surface of polysterene microplate wells. Streptavidin labeled with horseradish peroxidase (HRP) bound to the biotin of a complementary complex and transformed the 3,3′,5,5′-tetramethylbenzidine substrate, generating an optical signal. Sb3+ presenting in the sample bounded to an A10 aptamer, thus releasing T10, preventing streptavidin-HRP binding and, as a result, reducing the optical signal. This effect allowed for the detection of Sb3+ with a working range from 0.09 to 2.3 µg/mL and detection limit of 42 ng/mL. It was established that the presence of Ag+ at the stage of A10/T10 complex formation promoted dehybridization of the aptamer A10 and the formation of the A10/Sb3+ complex. The working range of the Ag+-enhanced microplate apta-enzyme assay for Sb3+ was determined to be 8–135 ng/mL, with a detection limit of 1.9 ng/mL. The proposed enhanced approach demonstrated excellent selectivity against other cations/anions, and its practical applicability was confirmed through an analysis of drinking and spring water samples with recoveries of Sb3+ in the range of 109.0–126.2% and 99.6–106.1%, respectively.

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Determination of trace elements, heavy metals, and antimony in polyethylene terephthalate–bottled local raw cow milk of Iğdır region in Turkey

Cited by 30 publications

References 25 publications

Presencia de metales pesados en leche cruda bovina de Machachi, Ecuador

Presencia de metales pesados en leche cruda bovina de Machachi, Ecuador

Evaluation of Changes in Some Physico-Chemical Properties of Bottled Water Exposed to Sunlight in Bauchi, Nigeria

Sensitive Silver-Enhanced Microplate Apta-Enzyme Assay of Sb3+ Ions in Drinking and Natural Waters

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