Exploratory analysis of potential toxic elements in Moroccan couscous and health risk evaluation utilizing ICP-OES

Background: The Moroccan diet is reliant on a number of plant-based proteins and calories, which are integral components of couscous and various baked goods. These include durum wheat, barley, whole corn, and rice, which provide essential nutrients in the form of protein and calories. However, these...

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Main Authors: Othmane Hammani, Najlae El-Otmani, Omar Ben Lenda, Hamza El Azhari, Abderrazak Rfaki, Naima Lahlouhi, Youssef Mourad, Abdelaziz Abdallaoui
Format: Article
Language:English
Published: Elsevier 2025-03-01
Series:Journal of Trace Elements and Minerals
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Online Access:http://www.sciencedirect.com/science/article/pii/S2773050624000922
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author Othmane Hammani
Najlae El-Otmani
Omar Ben Lenda
Hamza El Azhari
Abderrazak Rfaki
Naima Lahlouhi
Youssef Mourad
Abdelaziz Abdallaoui
author_facet Othmane Hammani
Najlae El-Otmani
Omar Ben Lenda
Hamza El Azhari
Abderrazak Rfaki
Naima Lahlouhi
Youssef Mourad
Abdelaziz Abdallaoui
author_sort Othmane Hammani
collection DOAJ
description Background: The Moroccan diet is reliant on a number of plant-based proteins and calories, which are integral components of couscous and various baked goods. These include durum wheat, barley, whole corn, and rice, which provide essential nutrients in the form of protein and calories. However, these grains are susceptible to the accumulation of trace elements that can have adverse effects on human health. In order to address this concern, our exploratory study assessed the contamination levels in couscous samples available in Morocco in 2023, focusing on lead (Pb) and cadmium (Cd) due to their severe health impacts even at low concentrations, as noted by the WHO. Study Area: Twenty-four couscous samples procured from diverse markets in Rabat, Sale, and Temara, which are located in the northern part of Morocco. Methods: The samples were subjected to analysis using an Inductively Coupled Plasma Optical Emission Spectrometer (ICP-OES) following the complete mineralisation of the samples. Results: The results for Cd indicated concentrations ranging from 0.0036 to 0.0144 μg g−1 in 13 samples, with the remaining samples exhibiting levels below the detection limit. With regard to Pb, nine samples exhibited contamination levels that ranged from 0.00461 to 0.00868 μg g−1. It is noteworthy that the levels of Cd were below the detection limit in all of the samples that were analysed. The results of our study demonstrated that all 24 samples exhibited Pb and Cd contents that were below the Maximum Residue Limit (MRL) as recommended by the European Commission Regulation No 1881/2006. Conclusion: The findings provide essential data for the evaluation of the safety and suitability of couscous for human consumption.
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spelling doaj-art-59927f89e204401191bef7ad612849ba2025-01-29T05:02:48ZengElsevierJournal of Trace Elements and Minerals2773-05062025-03-0111100207Exploratory analysis of potential toxic elements in Moroccan couscous and health risk evaluation utilizing ICP-OESOthmane Hammani0Najlae El-Otmani1Omar Ben Lenda2Hamza El Azhari3Abderrazak Rfaki4Naima Lahlouhi5Youssef Mourad6Abdelaziz Abdallaoui7Moulay Ismail University, Faculty of Sciences, Analytical Chemistry and Electrochemistry, Processes and Environment Team, Meknes, Morocco; National Center for Scientific and Technical Research (CNRST), Rabat, MoroccoTherapeutic Chemistry Laboratory, Department of Drug Sciences, Faculty of Medicine, and Pharmacy, Mohammed V University in Rabat, Morocco; Corresponding author.The National Higher School of Mining of Rabat (ENSMR), Rabat, Morocco; Laboratory of Physical-Chemistry of Processes and Materials, Faculty of Sciences and Technology Settat, Hassan 1st University, Settat, MoroccoLaboratory of Physical Chemistry of Materials, Natural Substances and Environment, Chemistry Department, Sciences and Technology Faculty, Abdelmalek Essaâdi University, Tangier 90090, MoroccoNational Center for Scientific and Technical Research (CNRST), Rabat, Morocco; Institut Royal de Formation des Cadres, Rabat, MoroccoNational Center for Scientific and Technical Research (CNRST), Rabat, Morocco; Laboratory of Spectroscopy, Molecular Modeling, Materials, Nanomaterials, Water and Environment, ENSAM, Mohammed V University in Rabat, Rabat, MoroccoSuperior School of Technology, University Sidi Mohammed Ben Abdellah, Fez, 30000, MoroccoMoulay Ismail University, Faculty of Sciences, Analytical Chemistry and Electrochemistry, Processes and Environment Team, Meknes, MoroccoBackground: The Moroccan diet is reliant on a number of plant-based proteins and calories, which are integral components of couscous and various baked goods. These include durum wheat, barley, whole corn, and rice, which provide essential nutrients in the form of protein and calories. However, these grains are susceptible to the accumulation of trace elements that can have adverse effects on human health. In order to address this concern, our exploratory study assessed the contamination levels in couscous samples available in Morocco in 2023, focusing on lead (Pb) and cadmium (Cd) due to their severe health impacts even at low concentrations, as noted by the WHO. Study Area: Twenty-four couscous samples procured from diverse markets in Rabat, Sale, and Temara, which are located in the northern part of Morocco. Methods: The samples were subjected to analysis using an Inductively Coupled Plasma Optical Emission Spectrometer (ICP-OES) following the complete mineralisation of the samples. Results: The results for Cd indicated concentrations ranging from 0.0036 to 0.0144 μg g−1 in 13 samples, with the remaining samples exhibiting levels below the detection limit. With regard to Pb, nine samples exhibited contamination levels that ranged from 0.00461 to 0.00868 μg g−1. It is noteworthy that the levels of Cd were below the detection limit in all of the samples that were analysed. The results of our study demonstrated that all 24 samples exhibited Pb and Cd contents that were below the Maximum Residue Limit (MRL) as recommended by the European Commission Regulation No 1881/2006. Conclusion: The findings provide essential data for the evaluation of the safety and suitability of couscous for human consumption.http://www.sciencedirect.com/science/article/pii/S2773050624000922CouscousTrace metal elementLeadCadmiumRisk assessment
spellingShingle Othmane Hammani
Najlae El-Otmani
Omar Ben Lenda
Hamza El Azhari
Abderrazak Rfaki
Naima Lahlouhi
Youssef Mourad
Abdelaziz Abdallaoui
Exploratory analysis of potential toxic elements in Moroccan couscous and health risk evaluation utilizing ICP-OES
Journal of Trace Elements and Minerals
Couscous
Trace metal element
Lead
Cadmium
Risk assessment
title Exploratory analysis of potential toxic elements in Moroccan couscous and health risk evaluation utilizing ICP-OES
title_full Exploratory analysis of potential toxic elements in Moroccan couscous and health risk evaluation utilizing ICP-OES
title_fullStr Exploratory analysis of potential toxic elements in Moroccan couscous and health risk evaluation utilizing ICP-OES
title_full_unstemmed Exploratory analysis of potential toxic elements in Moroccan couscous and health risk evaluation utilizing ICP-OES
title_short Exploratory analysis of potential toxic elements in Moroccan couscous and health risk evaluation utilizing ICP-OES
title_sort exploratory analysis of potential toxic elements in moroccan couscous and health risk evaluation utilizing icp oes
topic Couscous
Trace metal element
Lead
Cadmium
Risk assessment
url http://www.sciencedirect.com/science/article/pii/S2773050624000922
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