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Demir T, Ağaoğlu S. Estimated daily intake and health risk assessment of toxic elements in infant formulas. Br J Nutr 2023; 130:1732-1742. [PMID: 37066728 DOI: 10.1017/s0007114523000971] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/18/2023]
Abstract
In this study, the heavy metal (Al, Mn, Co, Cu, Zn, As, Se, Cd, Sn, Pb and Hg) concentrations were determined in a total of seventy-two infant formula samples manufactured by sixteen different brands in Türkiye. During the analyses, inductively coupled plasma MS was used in evaluating the nutritional profile and the toxicological risk associated with the consumption of these products. Given the analysis results, the highest Pb content was found in milk-based 'beginner' formulas (0-6 months, three samples) packed in metal containers. The highest concentration of Mn was found in powdered infant formula (Brand 3) that is suitable for 9-12-month-olds. Mn level was found to be above the limit values in nine samples (12·5 %). Cd level exceeded the limit values in two infant formula samples of Brand 3 (0·038 µg/g) and Brand 15 (0·023 µg/g). Therefore, the mean Cd concentration found here reaches the maximum limit set by the European Union commission legislation. Cu was detected in all infant formulas. The highest concentration was determined in Brand 1 (9-12 months, seven samples) and found to be 2·637 (sd 1·928) µg/g. This value is much higher than the reference values set in the national and international standards. Based on the results achieved here, the estimated daily intake (EDI) and target hazard quotient values for all the metals in infant formulas were found lower than < 1. These findings suggest that the baby foods examined would not pose any health risk. The daily intakes exceeding the baby nutrition values recommended by the WHO would pose health risk since they would exceed the EDI levels.
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Affiliation(s)
- Tuğba Demir
- Sivas Cumhuriyet University, Faculty of Veterinary, Food Hygiene and Technology, Sivas, Türkiye
| | - Sema Ağaoğlu
- Sivas Cumhuriyet University, Faculty of Veterinary, Food Hygiene and Technology, Sivas, Türkiye
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2
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Aluminium intake through the consumption of selected baby foods and risk characterization in a population of Brazilian infants aged 0 to 36 months. J Food Compost Anal 2022. [DOI: 10.1016/j.jfca.2022.105013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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3
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Başaran B. Assessment of Aluminum via Baby Foods Consumption in Turkey: Estimated Early-Life Dietary Exposure and Target Hazard Quotient. Biol Trace Elem Res 2022; 200:3892-3901. [PMID: 34661845 DOI: 10.1007/s12011-021-02961-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Accepted: 10/07/2021] [Indexed: 10/20/2022]
Abstract
This study focuses on infant formulas and baby biscuits, which have an important place in the nutrition of the most vulnerable individuals, namely babies. In this sense, the aluminum levels of 64 different baby foods, retrospectively consumed by 348 babies for dietary recall 24 h, were determined by ICP-MS. Then, the exposure resulting from the consumption of these foods was calculated via a deterministic model, and a risk assessment was made. Aluminum levels of infant formulas and baby biscuits that are of higher values compared to other studies were found in the range of 718-6987 and 1803-15,479 μg/kg, respectively. Aluminum exposure was calculated as 8.02, 7.28, 4.03, and 4.08 μg/kg bw/day in babies aged 0-6, 7-12, 13-24, and 25-36 months, respectively. There is no statistically significant difference between different age groups according to the total aluminum exposure levels. The toxicological contribution of aluminum exposure is quite limited (< 6.0% of PTWI). THQ values were calculated as 10-20 for babies aged 0-36 months. Therefore, THQ values indicate a potential health problem.
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Affiliation(s)
- Burhan Başaran
- Department of Travel, Tourism and Recreation Services, Ardeşen Vocational School, Recep Tayyip Erdogan University, Rize, 53100, Turkey.
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Maruszewska A, Żwierełło W, Skórka-Majewicz M, Baranowska-Bosiacka I, Wszołek A, Janda K, Kulis D, Kapczuk P, Chlubek D, Gutowska I. Modified Baby Milk-Bioelements Composition and Toxic Elements Contamination. Molecules 2021; 26:molecules26144184. [PMID: 34299460 PMCID: PMC8307874 DOI: 10.3390/molecules26144184] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 07/04/2021] [Accepted: 07/05/2021] [Indexed: 12/05/2022] Open
Abstract
Breast milk has the most suitable composition for the proper development in the first year of a child’s life. However, it is often replaced with artificial milk. The aim of the study was to analyze the composition of essential elements: Na, K, Ca, P, Mg, Fe, Zn, Cu, and Mn as well as toxic elements: Ni, Pb, Sr, Li, and In in 18 formulas available in Poland. The daily supply was also estimated. The study was performed by Inductively Coupled Plasma Optical Emission Spectrometry method. The results showed the presence of all essential elements tested, but the content of P and Mn significantly differed from the concentrations declared. Such discrepancies can have significant impact on the daily dose of the bioelements taken. However, the content of elements was within the reference standards established by the EU Directive with exception of P, the amount of which exceeded the norms 5.23–18.80-times. Daily supply of P in tested milk as well as Fe and Mn provided with first and hypoallergenic formula exceeded the adequate intake. Analysis revealed the contamination with harmful elements—Pb, Sr, Li, and In were detected in almost all products. The study confirms the data concerning some discrepancies in composition and the contamination of food and may provide information on the feeding quality of children and estimation of health risk associated with exposure to toxic elements.
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Affiliation(s)
- Agnieszka Maruszewska
- Institute of Biology, University of Szczecin, Felczaka 3c St., 71-412 Szczecin, Poland; (A.M.); (A.W.)
- Molecular Biology and Biotechnology Center, Institute of Biology, University of Szczecin, Wąska 13 St., 71-415 Szczecin, Poland
| | - Wojciech Żwierełło
- Department of Medical Chemistry, Pomeranian Medical University, Powstańców Wlkp. 71 St., 70-111 Szczecin, Poland; (W.Ż.); (M.S.-M.); (D.K.)
| | - Marta Skórka-Majewicz
- Department of Medical Chemistry, Pomeranian Medical University, Powstańców Wlkp. 71 St., 70-111 Szczecin, Poland; (W.Ż.); (M.S.-M.); (D.K.)
| | - Irena Baranowska-Bosiacka
- Department of Biochemistry, Pomeranian Medical University, Powstańców Wlkp. 72 St., 70-111 Szczecin, Poland; (I.B.-B.); (P.K.); (D.C.)
| | - Agata Wszołek
- Institute of Biology, University of Szczecin, Felczaka 3c St., 71-412 Szczecin, Poland; (A.M.); (A.W.)
- Molecular Biology and Biotechnology Center, Institute of Biology, University of Szczecin, Wąska 13 St., 71-415 Szczecin, Poland
| | - Katarzyna Janda
- Department of Human Nutrition and Metabolomic, Pomeranian Medical University, Broniewskiego 24 St., 71-460 Szczecin, Poland;
| | - Daria Kulis
- Department of Medical Chemistry, Pomeranian Medical University, Powstańców Wlkp. 71 St., 70-111 Szczecin, Poland; (W.Ż.); (M.S.-M.); (D.K.)
| | - Patrycja Kapczuk
- Department of Biochemistry, Pomeranian Medical University, Powstańców Wlkp. 72 St., 70-111 Szczecin, Poland; (I.B.-B.); (P.K.); (D.C.)
| | - Dariusz Chlubek
- Department of Biochemistry, Pomeranian Medical University, Powstańców Wlkp. 72 St., 70-111 Szczecin, Poland; (I.B.-B.); (P.K.); (D.C.)
| | - Izabela Gutowska
- Department of Medical Chemistry, Pomeranian Medical University, Powstańców Wlkp. 71 St., 70-111 Szczecin, Poland; (W.Ż.); (M.S.-M.); (D.K.)
- Correspondence: or ; Tel.: +48-91-466-1644
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Elaridi J, Dimassi H, Estephan M, Hassan HF. Determination of Aluminum, Chromium, and Barium Concentrations in Infant Formula Marketed in Lebanon. J Food Prot 2020; 83:1738-1744. [PMID: 32971540 DOI: 10.4315/jfp-20-003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Accepted: 05/20/2020] [Indexed: 12/26/2022]
Abstract
ABSTRACT Infant formula is a major nutritional component for many infants and toddlers. However, the presence of contaminants, such as toxic metals, may pose increased health risks to infants. An investigation of the total concentrations of the metals aluminum (Al), barium (Ba), and chromium (Cr) in infant formulae marketed in Lebanon was performed. Powdered dairy and nondairy infant formula samples were collected from all commercially available brands (n = 39) in the Lebanese market on two production dates (78 samples in total) and analyzed for these three metals with inductively coupled plasma mass spectrometry. All brands contained detectable concentrations of Al and Ba, Cr was detected in 95% of brands. Mean (±standard deviation) concentrations of the metals were estimated as 1.54 ± 1.43 (Al), 0.256 ± 0.593 (Ba), and 0.168 ± 0.143 (Cr) (μg/g). The concentration ranges in the powdered formula were 0.080 to 7.93 (Al), 0.038 to 5.35 (Ba), and 0.041 to 0.348 (Cr) μg/g. A significant difference in the mean concentrations of Al, Ba, and Cr for the two production dates of a single brand was observed in 92, 59, and 83% of samples, respectively. The mean concentration of Al in the soy-based formula was significantly higher than that of aluminum in milk-based and corn-based formulas (P = 0.018). Cr concentrations in the continuation special formulations were significantly higher than those in the beginner formulations (P = 0.008). Our study provides the first publicly available information on metal contamination in infant formulas in Lebanon and reveals the need for frequent monitoring and surveillance of these products intended for infant consumption. HIGHLIGHTS
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Affiliation(s)
- Jomana Elaridi
- Department of Natural Sciences, School of Arts and Sciences, Lebanese American University, Beirut, Lebanon (ORCID: https://orcid.org/0000-0003-4215-6815 [H.F.H.])
| | - Hani Dimassi
- School of Pharmacy, Lebanese American University, Byblos, Lebanon
| | - Maria Estephan
- Department of Natural Sciences, School of Arts and Sciences, Lebanese American University, Beirut, Lebanon (ORCID: https://orcid.org/0000-0003-4215-6815 [H.F.H.])
| | - Hussein F Hassan
- Department of Natural Sciences, School of Arts and Sciences, Lebanese American University, Beirut, Lebanon (ORCID: https://orcid.org/0000-0003-4215-6815 [H.F.H.])
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Occurrence and determination of inorganic contaminants in baby food and infant formula. Curr Opin Food Sci 2019. [DOI: 10.1016/j.cofs.2019.05.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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de Paiva EL, Milani RF, Morgano MA, Arisseto-Bragotto AP. Aluminum in infant formulas commercialized in Brazil: Occurrence and exposure assessment. J Food Compost Anal 2019. [DOI: 10.1016/j.jfca.2019.06.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Analysis of Micronutrients and Heavy Metals in Portuguese Infant Milk Powders by Wavelength Dispersive X-ray Fluorescence Spectrometry (WDXRF). FOOD ANAL METHOD 2014. [DOI: 10.1007/s12161-014-9866-y] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Dabeka R, Fouquet A, Belisle S, Turcotte S. Lead, cadmium and aluminum in Canadian infant formulae, oral electrolytes and glucose solutions. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2011; 28:744-53. [PMID: 21623498 PMCID: PMC3118527 DOI: 10.1080/19393210.2011.571795] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
Lead (Pb), cadmium (Cd) and aluminum (Al) were determined in 437 individual samples of infant formulae, oral electrolytes and 5% glucose solutions available in Canada. In the electrolytes, Cd and Pb concentrations were all below 0.01 and 0.041 ng g−1, respectively. In the 5% glucose solutions, Pb and Cd levels averaged 0.01 and 0.09 ng g−1, respectively. Reported on an as-consumed basis, Pb levels in milk- and soya-based formulae averaged 0.90 and 1.45 ng g−1, respectively, while Cd levels averaged 0.23 and 1.18 ng g−1, respectively Average Al levels on an as-consumed basis were 440 ng g−1 (range 10–3400 ng g−1) in milk-based formulae and 730 ng g−1 (range 230–1100 ng g−1) in soy-based formulae. Al concentrations increased in the following order: plain formula < low-iron formula < iron-supplemented formula < casein hydrolysate formula ≈ premature formula ≤ soy formula. For example, in the powdered formulae, average Al concentrations were 18 ng g−1 for plain milk-based, 37 ng g−1 for low-iron, 128 ng g−1 for iron supplemented, 462 ng g−1 for lactose-free, 518 ng g−1 for hypoallergenic and 619 ng g−1 for soy-based formula. Al concentrations, as-consumed, increased with decreasing levels of concentration: powder < concentrated liquid < ready-to-use. Formulae stored in glass bottles contained between 100 and 300 ng g−1 more Al than the same formulae stored in cans. The source of the increased Al did not appear to be the glass itself, because most electrolytes and glucose solutions, also stored in glass, contained less than 8 ng g−1 Al. Corresponding differences in Pb and Cd levels were not observed. Al concentrations varied substantially among manufacturers; however, all manufacturers were able to produce plain milk-based formulae containing less than 50 ng g−1 Al, i.e. within the range of Al concentrations found in human milk. Next to soya-based and hypoallergenic formulae, premature formulae contained among the highest concentrations of Al, ranging 851–909 ng g−1 from one manufacturer and 365–461 ng g−1 from another.
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Affiliation(s)
- Robert Dabeka
- Food Research Division, Bureau of Chemical Safety, Food Directorate, Ottawa, Ontario, Canada.
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10
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Burrell SAM, Exley C. There is (still) too much aluminium in infant formulas. BMC Pediatr 2010; 10:63. [PMID: 20807425 PMCID: PMC2939626 DOI: 10.1186/1471-2431-10-63] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2010] [Accepted: 08/31/2010] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Infant formulas are sophisticated milk-based feeds for infants which are used as a substitute for breast milk. Historically they are known to be contaminated by aluminium and in the past this has raised health concerns for exposed infants. We have measured the aluminium content of a number of widely used infant formulas to determine if their contamination by aluminium and consequent issues of child health persists. METHODS Samples of ready-made milks and powders used to make milks were prepared by microwave digestion of acid/peroxide mixtures and their aluminium content determined by THGA. RESULTS The concentration of aluminium in ready-made milks varied from ca 176 to 700 μg/L. The latter concentration was for a milk for preterm infants. The aluminium content of powders used to make milks varied from ca 2.4 to 4.3 μg/g. The latter content was for a soya-based formula and equated to a ready-to-drink milk concentration of 629 μg/L. Using the manufacturer's own guidelines of formula consumption the average daily ingestion of aluminium from infant formulas for a child of 6 months varied from ca 200 to 600 μg of aluminium. Generally ingestion was higher from powdered as compared to ready-made formulas. CONCLUSIONS The aluminium content of a range of well known brands of infant formulas remains high and particularly so for a product designed for preterm infants and a soya-based product designed for infants with cow's milk intolerances and allergies. Recent research demonstrating the vulnerability of infants to early exposure to aluminium serves to highlight an urgent need to reduce the aluminium content of infant formulas to as low a level as is practically possible.
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Affiliation(s)
| | - Christopher Exley
- The Birchall Centre, Lennard-Jones Laboratories, Keele University, Staffordshire, UK
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Kazi TG, Jalbani N, Baig JA, Arain MB, Afridi HI, Jamali MK, Shah AQ, Memon AN. Evaluation of toxic elements in baby foods commercially available in Pakistan. Food Chem 2010. [DOI: 10.1016/j.foodchem.2009.09.003] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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12
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Kazi TG, Jalbani N, Baig JA, Afridi HI, Kandhro GA, Arain MB, Jamali MK, Shah AQ. Determination of toxic elements in infant formulae by using electrothermal atomic absorption spectrometer. Food Chem Toxicol 2009; 47:1425-9. [PMID: 19328832 DOI: 10.1016/j.fct.2009.03.025] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2009] [Revised: 03/17/2009] [Accepted: 03/19/2009] [Indexed: 12/01/2022]
Abstract
In present work concentrations of toxic elements (TEs), aluminum (Al), cadmium (Cd), and lead (Pb) in seventeen imported samples of infant milk-based (IMF) and infant soy-based formulae (ISF), were measured, to evaluate whether the intakes of understudy TEs accomplished within recommended permissible levels. The TEs were analyzed by electrothermal atomic absorption spectrometer, prior to microwave induced acid digestion. The validity of methodology was tested by simultaneously analyzing certified reference material and standard addition method. It was observed that ISF contains higher concentration of understudy toxic analytes as compared to IMF. The all three TEs, Al, Cd and Pb were detected in different branded infant formulae, in the range of (1070-2170), (10.5-34.4), and (28.7-119) microg/kg, respectively. The estimated intakes of TEs as microg/kg/week for infants (>1year) through milk formulae are well below the recommended tolerable levels of these elements.
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Affiliation(s)
- Tasneem G Kazi
- National Center of Excellence in Analytical Chemistry, University of Sindh, Jamshoro 76080, Pakistan.
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Safety of aluminium from dietary intake ‐ Scientific Opinion of the Panel on Food Additives, Flavourings, Processing Aids and Food Contact Materials (AFC). EFSA J 2008; 6:754. [DOI: 10.2903/j.efsa.2008.754] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Krewski D, Yokel RA, Nieboer E, Borchelt D, Cohen J, Harry J, Kacew S, Lindsay J, Mahfouz AM, Rondeau V. Human health risk assessment for aluminium, aluminium oxide, and aluminium hydroxide. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART B, CRITICAL REVIEWS 2007; 10 Suppl 1:1-269. [PMID: 18085482 PMCID: PMC2782734 DOI: 10.1080/10937400701597766] [Citation(s) in RCA: 502] [Impact Index Per Article: 29.5] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Affiliation(s)
- Daniel Krewski
- Department of Epidemiology and Community Medicine, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada.
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Souad C, Farida Z, Nadra L, François B, Bougle D, Azeddine S. Trace element level in infant hair and diet, and in the local environment of the Moroccan city of Marrakech. THE SCIENCE OF THE TOTAL ENVIRONMENT 2006; 370:337-42. [PMID: 16982081 DOI: 10.1016/j.scitotenv.2006.06.020] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2006] [Revised: 06/26/2006] [Accepted: 06/27/2006] [Indexed: 05/11/2023]
Abstract
A sample of 573 infants (aged 0 to 12 months) from the Moroccan city of Marrakech was studied in order to determine the level of Pb and Al contaminations. Mean values of Pb and Al in children's hair were 6.6 and 9.5 microg/l, respectively. Age, gender, and parents' occupation influenced significantly Pb content but not Al content. Larger mean values were measured for Al compared with Pb. This finding can be explained by a higher level of Al available in both the infant diet (complementary feeding) and the local environmental factors (soil and drinking water). During weaning, beverages like tea, widely used in Morocco, represent an important source of Pb and Al contamination. Al content in drinking water is above the international standard.
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Affiliation(s)
- Chadrame Souad
- Laboratory of 'Ecotoxicology, Faculty of Sciences Semlalia, Marrakesh, Morocco
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Saiyed SM, Yokel RA. Aluminium content of some foods and food products in the USA, with aluminium food additives. ACTA ACUST UNITED AC 2005; 22:234-44. [PMID: 16019791 DOI: 10.1080/02652030500073584] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The primary objective was to determine the aluminium (Al) content of selected foods and food products in the USA which contain Al as an approved food additive. Intake of Al from the labeled serving size of each food product was calculated. The samples were acid or base digested and analysed for Al using electrothermal atomic absorption spectrometry. Quality control (QC) samples, with matrices matching the samples, were generated and used to verify the Al determinations. Food product Al content ranged from <1-27,000 mg kg(-1). Cheese in a serving of frozen pizzas had up to 14 mg of Al, from basic sodium aluminium phosphate; whereas the same amount of cheese in a ready-to-eat restaurant pizza provided 0.03-0.09 mg. Many single serving packets of non-dairy creamer had approximately 50-600 mg Al kg(-1) as sodium aluminosilicate, providing up to 1.5 mg Al per serving. Many single serving packets of salt also had sodium aluminosilicate as an additive, but the Al content was less than in single-serving non-dairy creamer packets. Acidic sodium aluminium phosphate was present in many food products, pancakes and waffles. Baking powder, some pancake/waffle mixes and frozen products, and ready-to-eat pancakes provided the most Al of the foods tested; up to 180 mg/serving. Many products provide a significant amount of Al compared to the typical intake of 3-12 mg/day reported from dietary Al studies conducted in many countries.
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Affiliation(s)
- Salim M Saiyed
- College of Pharmacy, University of Kentucky Medical Center, Lexington, KY, USA
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Affiliation(s)
- Heli Hyry
- Skin and Allergy Hospital, Helsinki University Central Hospital, Finland.
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Navarro-Blasco I, Alvarez-Galindo JI. Selenium content of Spanish infant formulae and human milk: influence of protein matrix, interactions with other trace elements and estimation of dietary intake by infants. J Trace Elem Med Biol 2004; 17:277-89. [PMID: 15139390 DOI: 10.1016/s0946-672x(04)80030-0] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The selenium content of infant formulae varies as a result of differences in the amount of intrinsic selenium compounds. Manufacturers have been gradually changing the protein profile of infant formulae to reflect human milk contents more closely. Because of these variations in infant formula composition and their potential impact on selenium content, this trace element was analysed with regard to the different protein sources. The aims of this study were to determine the selenium content in infant formulae sold commercially in Spain, to estimate a daily dietary intake for infants fed on formulae and to compare with the selenium provided by Spanish breast milk samples used as a reference. We have also identified certain trace elements added to formulae which interact with selenium according to the type and protein matrix of the infant formulae. Selenium concentration was determined by inductively coupled plasma atomic emission spectrometry (ICP-AES) with a hydride generator. The selenium concentrations in human milk and infant formulae determined in this study are similar to those found by other researchers in different countries. The daily selenium intake from the formulae studied was estimated according to the recommended doses from the manufacturers. The theoretical selenium intake of nursed infants has been studied in relation to the Recommended Dietary Allowance (RDA: 10 microg Se/day) and the specific recommendations for infant formula nutrient contents (10-35 microg Se/L) set by the Expert Panel of life Sciences Research Office (LSRO) of the American Society for Nutritional Sciences. According to our results, on an overall view, infants fed on the studied infant formulae have an intake between basal and normative requirements. This might be considered as providing an adequate selenium supply. However, the intake of setenium provided by several formulae included in this research did not reach the RDA for the first month of neonate life.
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Affiliation(s)
- Iñigo Navarro-Blasco
- Department of Chemistry, Faculty of Sciences, University of Navarra, Pamplona, Spain.
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