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Jean-charles Leblanc - One of the best experts on this subject based on the ideXlab platform.
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trace element contents in foods from the first french Total Diet Study on infants and toddlers
Journal of Food Composition and Analysis, 2019Co-Authors: Rachida Chekri, Véronique Sirot, Jean-charles Leblanc, Marion Hulin, Laurent Noël, Julie Zinck, Emilie Le Calvez, Thierry GuérinAbstract:Abstract Occurrence data for aluminium, antimony, arsenic, barium, cadmium, chrome, cobalt, gallium, germanium, nickel, strontium, silver, tellurium, tin and vanadium were compiled during the first French Total Diet Study on infants and toddlers. For infant foods, meat-/fish-based and vegetable-based ready-to-eat meals were among the most contaminated food categories for most trace elements, except for gallium, antimony and vanadium, for which the concentrations were relatively similar in all food categories. Soups/purees and cereal-based foods had the highest levels of aluminium (653 and 630 μg kg−1, respectively), whereas fruit purees had the highest level of tin (424 μg kg−1). Infant and follow-on formulae and growing-up milks had relatively low mean contents of trace elements compared with the other infant food categories: e.g. aluminium (220 μg kg−1), arsenic (1.80 μg kg−1), cadmium (0.51 μg kg−1). Chocolate-based foods contributed substantially to the higher levels of aluminium, cadmium, cobalt, chromium and nickel in sweet and savoury biscuits and bars, dairy-based desserts and croissant-like pastries. Only the contribution of chromium and barium levels were statistically different between infant and common foods, with median concentrations being slightly higher in infant foods. The results were largely comparable to those from other surveys on baby food.
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Levels of furan in foods from the first French Total Diet Study on infants and toddlers.
Food chemistry, 2018Co-Authors: Marine Lambert, Véronique Sirot, Frédéric Hommet, Jean-charles Leblanc, Chanthadary Inthavong, Marion Hulin, Caroline Desbourdes, Thierry GuérinAbstract:This Study describes an optimisation and validation process on a method using gas chromatography coupled with mass spectrometry to quantify furan in foods consumed mainly by infants and toddlers. The method that we developed allowed for low limits of quantification for liquid (1 µg kg-1) and solid (2 µg kg-1) samples. Our method was then applied to 134 food samples from the first French Total Diet Study on infants and toddlers. Furan was detected in 84% and quantified in 61% of the samples, at average lower and upper bound (LB/UB) concentrations ranging from 0 to 44 µg kg-1. The sugar and sugar derivatives, milk, growth milk, infant formulae and "other hot beverages categories contained the lowest average content (LB/UB ≤ 1 µg kg-1) and breakfast cereals contained the highest (LB/UB = 44 µg kg-1).
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Levels of acrylamide in foods included in ‘the first French Total Diet Study on infants and toddlers’
Food Chemistry, 2017Co-Authors: Marine Lambert, Frédéric Hommet, Jean-charles Leblanc, Chanthadary Inthavong, Marion Hulin, Thierry GuérinAbstract:Abstract This Study describes an optimisation and validation process using liquid chromatography coupled with tandem mass spectrometry to quantify acrylamide in foods mainly consumed by infants and toddlers. A limit of quantification of 5 µg.kg −1 for both solid and liquid samples was achieved, except for unprepared infant cereals (LOQ of 18 µg.kg −1 ). The method was then applied to 141 food samples from the first French Total Diet Study on infants and toddlers. Acrylamide was detected in most samples at mean LB/UB concentrations ranging from 0.14 to 102 µg.kg −1 . The “Follow-on formula” and “Infant formula” products contained the lowest average content (LB/UB of 0.14/2.2 µg.kg −1 and 0.60/2.9 µg.kg −1 respectively) and the “Sweet and savoury biscuits and bars” (102 µg.kg −1 ; n = 1 represented by a plain dry biscuit) contained the highest.
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Levels of lead in foods from the first French Total Diet Study on infants and toddlers
Food chemistry, 2017Co-Authors: Thierry Guérin, Véronique Sirot, Jean-charles Leblanc, Marion Hulin, Rachida Chekri, Emilie Le Calvez, Julie Zinck, Nawel Bemrah, Laurent NoëlAbstract:Infants and toddlers are highly vulnerable to exposure to lead due to its higher absorption in small children than in adults. This Study describes the optimisation and validation of a very sensitive method for the determination of low levels of lead in foods mostly consumed by infants and toddlers. This method, based on inductively coupled plasma-mass spectrometry with a programmable temperature cyclonic spray chamber, attained a limit of quantification (LOQ) of 0.6 or 0.9µgPbkg-1 for a liquid or a solid sample, that was improved by a factor 5.6-8.3 compared to the previous method (LOQ: 5µgkg-1). The analytical method was then applied to 291 food samples from the first French Total Diet Study on infants and toddlers. Lead was detected in most samples at relatively low concentrations (range 0.0-16µgkg-1). The highest lead concentrations were mainly found in processed food products (e.g. products containing chocolate).
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food risk assessment for perfluoroalkyl acids and brominated flame retardants in the french population results from the second french Total Diet Study
Science of The Total Environment, 2014Co-Authors: Gilles Rivière, Véronique Sirot, Alexandra Tard, Julien Jean, Bruno Veyrand, P Marchand, Le B Bizec, Jean-charles LeblancAbstract:To determine the exposure of the French population to toxic compounds contaminating the food chain, a Total Diet Study was performed in France between 2007 and 2009. This Study was designed to reflect the consumption habits of the French population and covered the most important foods in terms of consumption, selected nutrients and contribution to contamination. Based on French consumption data, the present Study reports the Dietary exposure to perfluoroalkyl acids (16 congeners) and brominated flame retardants (polybrominated diphenyl ethers, hexabromocyclododecane and polybrominated biphenyls). Comparison of the calculated Dietary exposures with the generally accepted health-based guidance values revealed that most compounds do not pose any risk. There are however knowledge gaps for some congeners in these large chemical classes.
Thierry Guérin - One of the best experts on this subject based on the ideXlab platform.
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trace element contents in foods from the first french Total Diet Study on infants and toddlers
Journal of Food Composition and Analysis, 2019Co-Authors: Rachida Chekri, Véronique Sirot, Jean-charles Leblanc, Marion Hulin, Laurent Noël, Julie Zinck, Emilie Le Calvez, Thierry GuérinAbstract:Abstract Occurrence data for aluminium, antimony, arsenic, barium, cadmium, chrome, cobalt, gallium, germanium, nickel, strontium, silver, tellurium, tin and vanadium were compiled during the first French Total Diet Study on infants and toddlers. For infant foods, meat-/fish-based and vegetable-based ready-to-eat meals were among the most contaminated food categories for most trace elements, except for gallium, antimony and vanadium, for which the concentrations were relatively similar in all food categories. Soups/purees and cereal-based foods had the highest levels of aluminium (653 and 630 μg kg−1, respectively), whereas fruit purees had the highest level of tin (424 μg kg−1). Infant and follow-on formulae and growing-up milks had relatively low mean contents of trace elements compared with the other infant food categories: e.g. aluminium (220 μg kg−1), arsenic (1.80 μg kg−1), cadmium (0.51 μg kg−1). Chocolate-based foods contributed substantially to the higher levels of aluminium, cadmium, cobalt, chromium and nickel in sweet and savoury biscuits and bars, dairy-based desserts and croissant-like pastries. Only the contribution of chromium and barium levels were statistically different between infant and common foods, with median concentrations being slightly higher in infant foods. The results were largely comparable to those from other surveys on baby food.
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French infant Total Diet Study Exposure to selected trace elements and associated health risks
Food and Chemical Toxicology, 2018Co-Authors: Véronique Sirot, Thierry Guérin, Laurent Noël, Jean-pierre Cravedi, Paule Vasseur, Thiema Traore, Morgane Bachelot, André Mazur, Philippe Glorennec, Julien JeanAbstract:A Total Diet Study (TDS) was conducted between 2010 and 2016 to assess the risk associated with chemicals in food of non-breast-fed children under three living in France. 291 composite food samples were prepared "as consumed" and analyzed for 16 trace elements: aluminium (Al), antimony (Sb), arsenic (As), barium (Ba), cobalt (Co), chromium (Cr), gallium (Ga), germanium (Ge), lead (Pb), mercury (Hg), nickel (Ni), silver (Ag), strontium (Sr), tellurium (Te), tin (Sn), vanadium (V). Dietary exposure was assessed for 705 representative children using food consumptions recorded through a 3-consecutive-days record. For inorganic mercury, chromium III, and antimony, the exposure levels were lower than the health-based guidance values and the risk was considered tolerable. Conversely, the exposure levels to inorganic arsenic, lead and nickel were higher than the health-based guidance values for a part of children and were considered as a concern, requiring management measures to reduce the exposure. For aluminium, methylmercury, strontium, chromium VI, cobalt, and barium, a risk could not be ruled out because of uncertainty sources. As a precautionary measure, reducing the exposure is recommended. For chemicals without robust health-based guidance value (organic arsenic, gallium, germanium, silver, tin, tellurium and vanadium), additional data are needed for risk assessment.
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Levels of furan in foods from the first French Total Diet Study on infants and toddlers.
Food chemistry, 2018Co-Authors: Marine Lambert, Véronique Sirot, Frédéric Hommet, Jean-charles Leblanc, Chanthadary Inthavong, Marion Hulin, Caroline Desbourdes, Thierry GuérinAbstract:This Study describes an optimisation and validation process on a method using gas chromatography coupled with mass spectrometry to quantify furan in foods consumed mainly by infants and toddlers. The method that we developed allowed for low limits of quantification for liquid (1 µg kg-1) and solid (2 µg kg-1) samples. Our method was then applied to 134 food samples from the first French Total Diet Study on infants and toddlers. Furan was detected in 84% and quantified in 61% of the samples, at average lower and upper bound (LB/UB) concentrations ranging from 0 to 44 µg kg-1. The sugar and sugar derivatives, milk, growth milk, infant formulae and "other hot beverages categories contained the lowest average content (LB/UB ≤ 1 µg kg-1) and breakfast cereals contained the highest (LB/UB = 44 µg kg-1).
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Levels of acrylamide in foods included in ‘the first French Total Diet Study on infants and toddlers’
Food Chemistry, 2017Co-Authors: Marine Lambert, Frédéric Hommet, Jean-charles Leblanc, Chanthadary Inthavong, Marion Hulin, Thierry GuérinAbstract:Abstract This Study describes an optimisation and validation process using liquid chromatography coupled with tandem mass spectrometry to quantify acrylamide in foods mainly consumed by infants and toddlers. A limit of quantification of 5 µg.kg −1 for both solid and liquid samples was achieved, except for unprepared infant cereals (LOQ of 18 µg.kg −1 ). The method was then applied to 141 food samples from the first French Total Diet Study on infants and toddlers. Acrylamide was detected in most samples at mean LB/UB concentrations ranging from 0.14 to 102 µg.kg −1 . The “Follow-on formula” and “Infant formula” products contained the lowest average content (LB/UB of 0.14/2.2 µg.kg −1 and 0.60/2.9 µg.kg −1 respectively) and the “Sweet and savoury biscuits and bars” (102 µg.kg −1 ; n = 1 represented by a plain dry biscuit) contained the highest.
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Levels of lead in foods from the first French Total Diet Study on infants and toddlers
Food chemistry, 2017Co-Authors: Thierry Guérin, Véronique Sirot, Jean-charles Leblanc, Marion Hulin, Rachida Chekri, Emilie Le Calvez, Julie Zinck, Nawel Bemrah, Laurent NoëlAbstract:Infants and toddlers are highly vulnerable to exposure to lead due to its higher absorption in small children than in adults. This Study describes the optimisation and validation of a very sensitive method for the determination of low levels of lead in foods mostly consumed by infants and toddlers. This method, based on inductively coupled plasma-mass spectrometry with a programmable temperature cyclonic spray chamber, attained a limit of quantification (LOQ) of 0.6 or 0.9µgPbkg-1 for a liquid or a solid sample, that was improved by a factor 5.6-8.3 compared to the previous method (LOQ: 5µgkg-1). The analytical method was then applied to 291 food samples from the first French Total Diet Study on infants and toddlers. Lead was detected in most samples at relatively low concentrations (range 0.0-16µgkg-1). The highest lead concentrations were mainly found in processed food products (e.g. products containing chocolate).
Véronique Sirot - One of the best experts on this subject based on the ideXlab platform.
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trace element contents in foods from the first french Total Diet Study on infants and toddlers
Journal of Food Composition and Analysis, 2019Co-Authors: Rachida Chekri, Véronique Sirot, Jean-charles Leblanc, Marion Hulin, Laurent Noël, Julie Zinck, Emilie Le Calvez, Thierry GuérinAbstract:Abstract Occurrence data for aluminium, antimony, arsenic, barium, cadmium, chrome, cobalt, gallium, germanium, nickel, strontium, silver, tellurium, tin and vanadium were compiled during the first French Total Diet Study on infants and toddlers. For infant foods, meat-/fish-based and vegetable-based ready-to-eat meals were among the most contaminated food categories for most trace elements, except for gallium, antimony and vanadium, for which the concentrations were relatively similar in all food categories. Soups/purees and cereal-based foods had the highest levels of aluminium (653 and 630 μg kg−1, respectively), whereas fruit purees had the highest level of tin (424 μg kg−1). Infant and follow-on formulae and growing-up milks had relatively low mean contents of trace elements compared with the other infant food categories: e.g. aluminium (220 μg kg−1), arsenic (1.80 μg kg−1), cadmium (0.51 μg kg−1). Chocolate-based foods contributed substantially to the higher levels of aluminium, cadmium, cobalt, chromium and nickel in sweet and savoury biscuits and bars, dairy-based desserts and croissant-like pastries. Only the contribution of chromium and barium levels were statistically different between infant and common foods, with median concentrations being slightly higher in infant foods. The results were largely comparable to those from other surveys on baby food.
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French infant Total Diet Study Exposure to selected trace elements and associated health risks
Food and Chemical Toxicology, 2018Co-Authors: Véronique Sirot, Thierry Guérin, Laurent Noël, Jean-pierre Cravedi, Paule Vasseur, Thiema Traore, Morgane Bachelot, André Mazur, Philippe Glorennec, Julien JeanAbstract:A Total Diet Study (TDS) was conducted between 2010 and 2016 to assess the risk associated with chemicals in food of non-breast-fed children under three living in France. 291 composite food samples were prepared "as consumed" and analyzed for 16 trace elements: aluminium (Al), antimony (Sb), arsenic (As), barium (Ba), cobalt (Co), chromium (Cr), gallium (Ga), germanium (Ge), lead (Pb), mercury (Hg), nickel (Ni), silver (Ag), strontium (Sr), tellurium (Te), tin (Sn), vanadium (V). Dietary exposure was assessed for 705 representative children using food consumptions recorded through a 3-consecutive-days record. For inorganic mercury, chromium III, and antimony, the exposure levels were lower than the health-based guidance values and the risk was considered tolerable. Conversely, the exposure levels to inorganic arsenic, lead and nickel were higher than the health-based guidance values for a part of children and were considered as a concern, requiring management measures to reduce the exposure. For aluminium, methylmercury, strontium, chromium VI, cobalt, and barium, a risk could not be ruled out because of uncertainty sources. As a precautionary measure, reducing the exposure is recommended. For chemicals without robust health-based guidance value (organic arsenic, gallium, germanium, silver, tin, tellurium and vanadium), additional data are needed for risk assessment.
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Levels of furan in foods from the first French Total Diet Study on infants and toddlers.
Food chemistry, 2018Co-Authors: Marine Lambert, Véronique Sirot, Frédéric Hommet, Jean-charles Leblanc, Chanthadary Inthavong, Marion Hulin, Caroline Desbourdes, Thierry GuérinAbstract:This Study describes an optimisation and validation process on a method using gas chromatography coupled with mass spectrometry to quantify furan in foods consumed mainly by infants and toddlers. The method that we developed allowed for low limits of quantification for liquid (1 µg kg-1) and solid (2 µg kg-1) samples. Our method was then applied to 134 food samples from the first French Total Diet Study on infants and toddlers. Furan was detected in 84% and quantified in 61% of the samples, at average lower and upper bound (LB/UB) concentrations ranging from 0 to 44 µg kg-1. The sugar and sugar derivatives, milk, growth milk, infant formulae and "other hot beverages categories contained the lowest average content (LB/UB ≤ 1 µg kg-1) and breakfast cereals contained the highest (LB/UB = 44 µg kg-1).
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Quality Management Framework for Total Diet Study centres in Europe.
Food chemistry, 2017Co-Authors: Marina Pité, Véronique Sirot, Hannah Pinchen, Isabel Castanheira, Luísa Oliveira, Mark Roe, Jiri Ruprich, Irena Rehurkova, A. Papadopoulos, Helga GunnlaugsdóttirAbstract:A Quality Management Framework to improve quality and harmonization of Total Diet Study practices in Europe was developed within the TDS-Exposure Project. Seventeen processes were identified and hazards, Critical Control Points and associated preventive and corrective measures described. The Total Diet Study process was summarized in a flowchart divided into planning and practical (sample collection, preparation and analysis; risk assessment analysis and publication) phases. Standard Operating Procedures were developed and implemented in pilot studies in five organizations. The flowchart was used to develop a quality framework for Total Diet Studies that could be included in formal quality management systems. Pilot studies operated by four project partners were visited by project assessors who reviewed implementation of the proposed framework and identified areas that could be improved. The quality framework developed can be the starting point for any Total Diet Study centre and can be used within existing formal quality management approaches.
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Levels of lead in foods from the first French Total Diet Study on infants and toddlers
Food chemistry, 2017Co-Authors: Thierry Guérin, Véronique Sirot, Jean-charles Leblanc, Marion Hulin, Rachida Chekri, Emilie Le Calvez, Julie Zinck, Nawel Bemrah, Laurent NoëlAbstract:Infants and toddlers are highly vulnerable to exposure to lead due to its higher absorption in small children than in adults. This Study describes the optimisation and validation of a very sensitive method for the determination of low levels of lead in foods mostly consumed by infants and toddlers. This method, based on inductively coupled plasma-mass spectrometry with a programmable temperature cyclonic spray chamber, attained a limit of quantification (LOQ) of 0.6 or 0.9µgPbkg-1 for a liquid or a solid sample, that was improved by a factor 5.6-8.3 compared to the previous method (LOQ: 5µgkg-1). The analytical method was then applied to 291 food samples from the first French Total Diet Study on infants and toddlers. Lead was detected in most samples at relatively low concentrations (range 0.0-16µgkg-1). The highest lead concentrations were mainly found in processed food products (e.g. products containing chocolate).
Laurent Noël - One of the best experts on this subject based on the ideXlab platform.
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trace element contents in foods from the first french Total Diet Study on infants and toddlers
Journal of Food Composition and Analysis, 2019Co-Authors: Rachida Chekri, Véronique Sirot, Jean-charles Leblanc, Marion Hulin, Laurent Noël, Julie Zinck, Emilie Le Calvez, Thierry GuérinAbstract:Abstract Occurrence data for aluminium, antimony, arsenic, barium, cadmium, chrome, cobalt, gallium, germanium, nickel, strontium, silver, tellurium, tin and vanadium were compiled during the first French Total Diet Study on infants and toddlers. For infant foods, meat-/fish-based and vegetable-based ready-to-eat meals were among the most contaminated food categories for most trace elements, except for gallium, antimony and vanadium, for which the concentrations were relatively similar in all food categories. Soups/purees and cereal-based foods had the highest levels of aluminium (653 and 630 μg kg−1, respectively), whereas fruit purees had the highest level of tin (424 μg kg−1). Infant and follow-on formulae and growing-up milks had relatively low mean contents of trace elements compared with the other infant food categories: e.g. aluminium (220 μg kg−1), arsenic (1.80 μg kg−1), cadmium (0.51 μg kg−1). Chocolate-based foods contributed substantially to the higher levels of aluminium, cadmium, cobalt, chromium and nickel in sweet and savoury biscuits and bars, dairy-based desserts and croissant-like pastries. Only the contribution of chromium and barium levels were statistically different between infant and common foods, with median concentrations being slightly higher in infant foods. The results were largely comparable to those from other surveys on baby food.
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French infant Total Diet Study Exposure to selected trace elements and associated health risks
Food and Chemical Toxicology, 2018Co-Authors: Véronique Sirot, Thierry Guérin, Laurent Noël, Jean-pierre Cravedi, Paule Vasseur, Thiema Traore, Morgane Bachelot, André Mazur, Philippe Glorennec, Julien JeanAbstract:A Total Diet Study (TDS) was conducted between 2010 and 2016 to assess the risk associated with chemicals in food of non-breast-fed children under three living in France. 291 composite food samples were prepared "as consumed" and analyzed for 16 trace elements: aluminium (Al), antimony (Sb), arsenic (As), barium (Ba), cobalt (Co), chromium (Cr), gallium (Ga), germanium (Ge), lead (Pb), mercury (Hg), nickel (Ni), silver (Ag), strontium (Sr), tellurium (Te), tin (Sn), vanadium (V). Dietary exposure was assessed for 705 representative children using food consumptions recorded through a 3-consecutive-days record. For inorganic mercury, chromium III, and antimony, the exposure levels were lower than the health-based guidance values and the risk was considered tolerable. Conversely, the exposure levels to inorganic arsenic, lead and nickel were higher than the health-based guidance values for a part of children and were considered as a concern, requiring management measures to reduce the exposure. For aluminium, methylmercury, strontium, chromium VI, cobalt, and barium, a risk could not be ruled out because of uncertainty sources. As a precautionary measure, reducing the exposure is recommended. For chemicals without robust health-based guidance value (organic arsenic, gallium, germanium, silver, tin, tellurium and vanadium), additional data are needed for risk assessment.
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Levels of lead in foods from the first French Total Diet Study on infants and toddlers
Food chemistry, 2017Co-Authors: Thierry Guérin, Véronique Sirot, Jean-charles Leblanc, Marion Hulin, Rachida Chekri, Emilie Le Calvez, Julie Zinck, Nawel Bemrah, Laurent NoëlAbstract:Infants and toddlers are highly vulnerable to exposure to lead due to its higher absorption in small children than in adults. This Study describes the optimisation and validation of a very sensitive method for the determination of low levels of lead in foods mostly consumed by infants and toddlers. This method, based on inductively coupled plasma-mass spectrometry with a programmable temperature cyclonic spray chamber, attained a limit of quantification (LOQ) of 0.6 or 0.9µgPbkg-1 for a liquid or a solid sample, that was improved by a factor 5.6-8.3 compared to the previous method (LOQ: 5µgkg-1). The analytical method was then applied to 291 food samples from the first French Total Diet Study on infants and toddlers. Lead was detected in most samples at relatively low concentrations (range 0.0-16µgkg-1). The highest lead concentrations were mainly found in processed food products (e.g. products containing chocolate).
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Dietary exposure and health risk assessment for 14 toxic and essential trace elements in yaounde the cameroonian Total Diet Study
Food Additives and Contaminants Part A-chemistry Analysis Control Exposure & Risk Assessment, 2014Co-Authors: M. Madeleine Gimou, Régis Pouillot, Thierry Guérin, Laurent Noël, Ruth U Charrondiere, Jean-charles LeblancAbstract:Dietary exposure to trace elements (aluminium, antimony, barium, cadmium, lead, nickel, vanadium, copper, manganese, molybdenum, germanium, lithium, strontium and tellurium) was assessed by the Total Diet Study (TDS) method. Sixty-four pooled samples representing 96.5% of the Diet in Yaounde, Cameroon, were prepared “as consumed” before analysis. Consumption data were sourced from a households’ budget survey. Dietary exposures were compared with health-based guidance or nutritional values and to worldwide TDS results. The health-based guidance value was exceeded by ≤ 0.2% of the Study population for aluminium, antimony, barium, cadmium, nickel and vanadium. For lead, the observed 95th percentile of exposure (3.05 µg kg−1 body weight day−1) equals the critical value considered by JECFA for cardiovascular effects; therefore, risk to health cannot be excluded for certain consumer groups. The population at risk of excess intake for manganese, copper, molybdenum and nickel was considered to be low (≤ 0.3%). Th...
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Dietary exposure and health risk assessment for 11 minerals and trace elements in yaounde the cameroonian Total Diet Study
Food Additives and Contaminants Part A-chemistry Analysis Control Exposure & Risk Assessment, 2013Co-Authors: M. Madeleine Gimou, Thierry Guérin, Laurent Noël, J.-c. Leblanc, U R Charrondiere, Régis PouillotAbstract:Dietary exposure to 11 elements was assessed by the Total Diet Study (TDS) method. Sixty-four pooled samples representing 96.5% of the Diet in Yaounde, Cameroon, were prepared as consumed before analysis. Consumption data were sourced from a household budget survey. Dietary exposures were compared with nutritional or health-based guidance values (HBGV) and to worldwide TDS results. Elevated prevalence of inadequate intake was estimated for calcium (71.6%), iron (89.7%), magnesium (31.8%), zinc (46.9%) and selenium (87.3%). The percentage of the Study population exceeding the tolerable upper intake levels was estimated as <3.2% for calcium, iron, magnesium, zinc and cobalt; 19.1% of the population exceeded the HBGV for sodium. No exceedance of the HBGV for inorganic mercury was predicted in the population. The margin of exposure ranged from 0.91 to 25.0 for inorganic arsenic depending on the reference point. The “Fish” food group was the highest contributor to intake for calcium (65%), cobalt (32%) and se...
Chabi Sika K J Kisito - One of the best experts on this subject based on the ideXlab platform.
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Levels of persistent organic pollutants (POPs) in foods from the first regional Sub-Saharan Africa Total Diet Study.
Environment international, 2019Co-Authors: Vincent Vaccher, Luc Ingenbleek, Setondji Epiphane Hossou, Abdoulaye Zie Kone, Yara Koreissi Dembele, Awoyinka Dada Oyedele, Chabi Sika K J Kisito, Abimobola Adegboye, Inas Adbel MalakAbstract:Abstract For the first time, a multi-centre Total Diet Study was carried out in Benin, Cameroon, Mali and Nigeria. We collected and prepared as consumed 528 typical fatty foods from those areas and pooled these subsamples into 44 composites samples. These core foods were tested for a wide spectrum of POPs, including polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs), polychlorinated biphenyls (PCBs), brominated flame-retardants (BFRs), organochlorine compounds (OCs), perfluoro alkyl substances (PFAS) and chlorinated flame retardants (CFRs). The POPs contamination levels were similar or lower than those reported in Total Diet studies previously conducted worldwide. In most cases, core foods belonging to fish food group presented higher POPs concentrations than the other food groups. Interestingly, we observed a difference in both contamination profile and concentration for smoked fish compared to non-smoked fish. Such finding suggests that the smoking process itself might account for a large proportion of the contamination. Further investigation would require the assessment of combustion materials used to smoke fish as a potential vehicle, which may contribute to the Dietary exposure of the studied populations to POPs.
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sub saharan africa Total Diet Study in benin cameroon mali and nigeria pesticides occurrence in foods
Food chemistry: X, 2019Co-Authors: Luc Ingenbleek, Abimbola Adegboye, Setondji Epiphane Hossou, Abdoulaye Zie Kone, Lionel Lopes Pereira, Anais Paineau, Isabelle Colet, Yara Koreissi Dembele, Awoyinka Dada Oyedele, Chabi Sika K J KisitoAbstract:Abstract In the framework of the first regional Total Diet Study in Sub-Saharan Africa, 3696 foodstuffs, commonly consumed in Benin, Cameroon, Mali and Nigeria were purchased, prepared as consumed and pooled into 308 composite samples. Those core foods were tested for up to 470 pesticides residues by liquid and gas chromatography coupled with tandem mass spectrometry. 39 pesticides were detected with 294 Total occurrences, including 47.3% organophosphate pesticides and 35.7% pyrethroids. More specifically, 6 substances represented 75.5% of all 3 organophosphates and 3 pyrethroids: chlorpyrifos (22.4%) cypermethrin (18.0%) dichlorvos (13.6%), lambda cyhalothrin (8.2%), permethrin (7.5%) and profenofos (5.8%). One pesticide or more was detected in 45.8% of samples. Strikingly, several pesticides were quantified in 2 composite samples of smoked fish from Mali: chlorpyrifos (5236–18 084 μg/kg), profenofos (30–182 μg/kg), cypermethrin (22–250 μg/kg), cyfluthrin (16–117 μg/kg), lambda cyhalothrin (9–17 μg/kg) and permethrin (3–6 μg/kg).
