Journal of trace elements and minerals最新文献

{"title":"A modification of the dimethylglyoxime method for Nickel determination: Application in bioremediation processes","authors":"Micaela B. Gómez Jousse ,&nbsp;Gisela Ferraro ,&nbsp;Federico J. Pomiro ,&nbsp;Daniel M. Pasquevich ,&nbsp;Carolina Bagnato","doi":"10.1016/j.jtemin.2024.100130","DOIUrl":"https://doi.org/10.1016/j.jtemin.2024.100130","url":null,"abstract":"<div><h3>Background</h3><p>Environmental contamination with nickel is increasing due to the discharge of industrial effluents and other anthropogenic activities. Therefore, the improvement of methods for monitoring nickel concentration is of great value. The dimethylglyoxime (DMG) method is used to determine the nickel concentration in aqueous solutions. This method requires the oxidation of Ni(II) to Ni(IV) by bromine water before adding DMG, which is necessary to complete color development. The original method uses more than 50 mL of final reagent volume per sample. In this study, a volume reduction of the DMG method was performed.</p></div><div><h3>Results</h3><p>A volume reduction of 1 mL per sample was successfully achieved for the DMG method. The working range was 0 - 10 mg Ni(II) L⁻¹. The specified limits of detection and quantification (LOQ and LOD) were 1.18 and 0.41 mg L⁻¹ respectively. A comparative analysis with atomic absorption spectroscopy (AAS) showed no significant differences between both methods for nickel determination. The modified DMG method was effective for the measurement of nickel in experimental samples from a bioremediation assay.</p></div><div><h3>Conclusion</h3><p>The modified DMG method offers considerable advantages. The modified method reduces the volume of reagents used from 50 mL to just 1 mL. The requirement of smaller volume of each reagent is economically favorable, and consequently the amount of passive waste generated is reduced. It is easily reproducible in a laboratory with access to a spectrophotometer and simple reagents. In addition, the possibility to measure samples from bioremediation assays is an advantage.</p></div>","PeriodicalId":73997,"journal":{"name":"Journal of trace elements and minerals","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2773050624000156/pdfft?md5=e97edce39b1702ef2e688644589154b6&pid=1-s2.0-S2773050624000156-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140631454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessment of titanium and cobalt urinary release from dental implants by ICP-MS: A case-control study","authors":"Hadil Gribi ,&nbsp;Aya Guenfoud ,&nbsp;Anissa Zergui ,&nbsp;Mokhtar Eddine Djouad","doi":"10.1016/j.jtemin.2024.100126","DOIUrl":"https://doi.org/10.1016/j.jtemin.2024.100126","url":null,"abstract":"<div><h3>Introduction</h3><p>Dental implants are medical devices designed to replace missing teeth. They are usually made of titanium and cobalt. The present study aimed to evaluate the systematic release of cobalt and titanium in patients with dental implants.</p></div><div><h3>Materials and methods</h3><p>The present case-control study was conducted in dentistry establishments of the region of Chlef and included 24 patients with dental implants (group P) and 24 control subjects (group C). Titanium and cobalt urinary evels were quantified using Inductively Coupled Plasma Mass Spectrometry. The Shapiro–Wilk and Mann-whitney statistical tests were performed using R software.</p></div><div><h3>Results</h3><p>Assessed levels ranged from 0.001 to 0.025 and 0.020–3.900 ug.<em>g</em> ⁻ ¹ of creatinine for titanium and cobalt respectively. No statistically significant differences in titanium and cobalt urinary concentrations were found between the Group P and C (<em>p</em> = 0.521 and <em>p</em> = 0.577 for titanium and cobalt respectively). No statistically significant difference in titanium urinary levels was found between the smokers and non-smokers (<em>p</em> = 0.137). However, a statistically significant difference in cobalt urinary levels was found between the smokers and non-smokers (<em>p</em> = 0.002). In addition, a statistically significant difference in titanium and cobalt urinary levels was found between the subjects with and without orthopaedic implant (<em>p</em> = 0.001).</p></div><div><h3>Conclusion</h3><p>The results revealed that there was no significant release of titanium and cobalt through dental implants in the studied population. Further studies with multidisciplinary approach, long-term follow-up and larger sample are required to evaluate other metals release from dental and orthopaedic implants.</p></div>","PeriodicalId":73997,"journal":{"name":"Journal of trace elements and minerals","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2773050624000119/pdfft?md5=0153d19456a6b0fb15bc4f6065d31b34&pid=1-s2.0-S2773050624000119-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140605859","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Necroptosis in aluminum-induced neural cells and animal models of Alzheimer's disease","authors":"Qinli Zhang ,&nbsp;Qiao Niu","doi":"10.1016/j.jtemin.2024.100125","DOIUrl":"https://doi.org/10.1016/j.jtemin.2024.100125","url":null,"abstract":"<div><h3>Introduction</h3><p>Progressive neural cell loss is a pathological hallmark of Alzheimer's disease (AD). Environmental factors should be taken into consideration due to their epigenetic link to AD, and also because most of the causal environmental factors are preventable. Aluminum (Al) as a common risk environmental factor has been reported to be related to AD. Nonetheless, the nature, time duration, and molecular mechanism of neural cell death in Al-induced AD remain poorly understood. The present article reviews the role of necroptosis, as a novel cell death pathway, in Al-induced AD models in vitro and in vivo.</p></div><div><h3>Methods</h3><p>In the present review, Al-induced necroptosis is summarized in terms of neural cell death and AD animal models induced by Al compounds. Furthermore, a major role of necroptosis in AD is highlighted by comparing studies of apoptosis and autophagy in Al-induced neural cell death and AD animal models.</p></div><div><h3>Results</h3><p>Current research on Al-induced necroptosis has been summarized in Al-treated neural cells and animal AD models. Treatment with Necrostatin-1 (Nec-1) as its specific inhibitor could down-regulate expression of cell death and necroptosis-related proteins; finally, AD-related expression of the signal pathway declined accordingly. The results consistently implied that Al could induce necroptosis, and that Nec-1 could suppress neural cell death pathways not only in Al-induced necroptosis but also in apoptosis and autophagy. Compared with the inhibitors of apoptosis and autophagy, the effects of Nec-1 were more prominent. It indicated that necroptosis is a dominant cell death pathway in Al-treated neural cells and animal models.</p></div><div><h3>Conclusion</h3><p>Based on the relative literature, it has been suggested that necroptosis is involved in the process of Al-induced AD. It implies that Nec-1 represents a promising anti-Alzheimer's approach and has potential theoretical value in environmental factor Al-induced AD neuropathologies.</p></div>","PeriodicalId":73997,"journal":{"name":"Journal of trace elements and minerals","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2773050624000107/pdfft?md5=0ae3285a4c7ba8004f245616186c7e21&pid=1-s2.0-S2773050624000107-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140550787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Selenium as a powerful trace element for mitigation of plant salt stress: A review","authors":"Bouzid Nedjimi","doi":"10.1016/j.jtemin.2024.100123","DOIUrl":"https://doi.org/10.1016/j.jtemin.2024.100123","url":null,"abstract":"<div><h3>Background</h3><p>Selenium (Se) is an important trace element with several positive impacts for animal and human health. Salinity poses a substantial problem to agriculture and crop production worldwide, that necessitates innovative procedures to enhance salt tolerance of crop species. Selenium (Se) and Selenium nanoparticles (Se–NPs) application is a simple and effective practice for boosting growth and productivity of crop species under salt conditions.</p></div><div><h3>Objective</h3><p>The aim of this review was to summarize recent literature on about the efficiency of Se and Se–NPs amendments to enhance plant growth and crop productivity under saline conditions.</p></div><div><h3>Methodology</h3><p>In this review, we have delved the effects of Se and Se-NPs on seed priming and germination under salt stress. We explored the effects of Se on plant growth, mineral nutrition and photosynthesis activity. Different effects modulated by Se and Se-NPs to improve the water relations, oxidative defense system and osmolyte production are also reviewed.</p></div><div><h3>Conclusion</h3><p>We have concluded that Se and Se-NPs supply offer a very promising solution to improve plant growth and salt stress tolerance of crop species. We emphasize the requirement of further investigations to elucidate the forms, accurate doses, and timing of Se amendments on plants subjected to salt stress, and to assess their long-term environmental impacts.</p></div>","PeriodicalId":73997,"journal":{"name":"Journal of trace elements and minerals","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2773050624000089/pdfft?md5=391dcec9f77f072a00f75bfe39998ee1&pid=1-s2.0-S2773050624000089-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140350928","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Selenium in plant-based beverages: How can in vitro bioaccessibility contribute to an accurate daily intake?","authors":"José Luan da Paixão Teixeira,&nbsp;Raquel Fernanda Milani,&nbsp;Marcelo Antonio Morgano","doi":"10.1016/j.jtemin.2024.100124","DOIUrl":"https://doi.org/10.1016/j.jtemin.2024.100124","url":null,"abstract":"<div><h3>Background</h3><p>Lactose intolerance, cow milk protein allergy, and environmental and ethical concerns drive the global market for plant-based beverages (PPBs). Despite this, data on the occurrence of selenium (Se) in these beverages are scarce.</p></div><div><h3>Objective</h3><p>The objectives of this study were to assess total selenium and determine the bioaccessible fractions in plant-based beverages (PBBs) from cereals, oilseeds, and pumpkin seeds, using an <em>in vitro</em> static method to simulate human digestion; and estimate the contribution these beverages have to the reference daily intake (RDI) for children and adults.</p></div><div><h3>Methodology</h3><p>The study involved beverages made under laboratory conditions. Samples and extracts were submitted to acid digestion (ultrasonic and block digester); total and bioaccessible Se levels were determined by ICP-MS. <em>In vitro</em> bioaccessibility was assessed using the INFOGEST protocol.</p></div><div><h3>Results</h3><p><em>The results revealed a wide variation in Se content in the studied plant-based beverages</em> from 10.3 µg kg⁻¹ (sunflower seeds) to 3509 µg kg⁻¹ (Brazil nuts). The bioaccessibility of Se was found only in PBBs made from oilseeds with macadamia, cashew and Brazil nut, with a variation in values from 86 to 96 %. The Se content and its bioaccessible fraction of Brazil nut PBB may contribute to 1276 % and 1218 % of the RDI for children and adults, respectively.</p></div><div><h3>Conclusions</h3><p>The Se content varied among samples of cereals, oilseeds and pumpkin seeds, reflecting the diversity in the studied PBBs. Only PBBs containing oilseeds (macadamia, cashews, and Brazil nuts) exhibited measurable amounts of bioaccessible Se, indicating an association with the raw material. However, the consumption of the PBB containing Brazil nuts may pose a risk of adverse effects, due to its high contribution to the RDI in both children and adults.</p></div>","PeriodicalId":73997,"journal":{"name":"Journal of trace elements and minerals","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2773050624000090/pdfft?md5=6d2c2037290b137a9ea31d82423390e9&pid=1-s2.0-S2773050624000090-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140533854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Human health risks of trace metals through the dietary intake of potato tubers and exposures of potato cultivating soils: A case study of Mymensingh district, Bangladesh","authors":"Ananya Saha,&nbsp;H.M. Zakir,&nbsp;Q.F. Quadir,&nbsp;Nipunika Sarker,&nbsp;Protyasha Biswas,&nbsp;Supti Mallick","doi":"10.1016/j.jtemin.2024.100122","DOIUrl":"https://doi.org/10.1016/j.jtemin.2024.100122","url":null,"abstract":"<div><h3>Background</h3><p>Trace metal contamination in soil and farm products is common in Bangladesh, which enhances public awareness. Most of the studies in our country ignored potential human health risks from different routes of exposures to trace metals present in potato tubers and potato-growing soils.</p></div><div><h3>Objectives</h3><p>The study objectives were to measure trace metals pollution level in soils, and to evaluate human health risks due to dietary intake of potato tubers, as well as ingestion, dermal and inhalation exposures of potato-cultivating soils of Mymensingh district, Bangladesh.</p></div><div><h3>Methods</h3><p>An atomic absorption spectrophotometer was used to determine Cd, Ni, Pb, Cr, Cu, Zn, Fe, Co, and Mn in the extract of soils and potato tubers. The study employed contamination factor (CF), pollution load index (PLI), and potential ecological risk index (PERI) to evaluate the level of soil pollution. Non-carcinogenic and carcinogenic human health risks were assessed based on calculated Hazard Quotient and Cumulative Incremental Lifetime Cancer Risk (∑ILCR), respectively.</p></div><div><h3>Results</h3><p>A threshold of \"moderate contamination\" (1.0 ≤ CF &lt; 3.0) can be assigned to certain soil sampling sites based on the computed CF values for Ni, Cd, and Pb. On the contrary, the calculated PERI indicated that the soils of potato-cultivating regions of the study area are ecologically free from pollution. Regarding non-cancer risks, the measured hazard quotient (HQ) values for all avenues of exposure to trace metals were below 1.0, indicating that they are safe for human health. On the other hand, the calculated incremental lifetime cancer risk (ILCR) values for Ni in 83.3% of potato tuber samples for both sexes and Cd in 58.3% of males and 91.7% of females had scores greater than 1.00E-04, which indicates carcinogenic risks to adult humans. However, the estimated mean ∑ILCR for males and females in various routes of exposure showed a decreasing trend in the order of ILCR_Oral (potato ingestion) &gt;ILCR_{Soil ingestion} &gt;ILCR_{Dermal adsorption} &gt;ILCR_{Soil inhalation}.</p></div><div><h3>Conclusion</h3><p>The agricultural soils of Bangladesh are becoming progressively degraded due to multiple contamination causes along with trace metals. The investigation recommended that future traceability efforts focus on locating possible sites of entry for toxic metals into the nation's food supply chain.</p></div>","PeriodicalId":73997,"journal":{"name":"Journal of trace elements and minerals","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2773050624000077/pdfft?md5=5322b66d3759752d2652216cfcd98ceb&pid=1-s2.0-S2773050624000077-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140350930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessment of ecological and health risk impact of heavy metals contamination in stream sediments in Itapaji-Ekiti, SW Nigeria","authors":"Y.A. Abdu-Raheem ,&nbsp;A.O. Oyebamiji ,&nbsp;L.O. Afolagboye ,&nbsp;A.O. Talabi","doi":"10.1016/j.jtemin.2024.100121","DOIUrl":"https://doi.org/10.1016/j.jtemin.2024.100121","url":null,"abstract":"<div><h3>Background</h3><p>Heavy metal contamination in aquatic ecosystems is a major environmental and health concern globally. This study assessed the ecological and health risks associated with heavy metal pollution in stream sediments in Itapaji-Ekiti, Southwest Nigeria. The study contributes collectively to a comprehensive understanding of the geochemical dynamics and contamination factors affecting the studied stream sediments.</p></div><div><h3>Methods</h3><p>Heavy metals study was conducted on stream sediments within the geographical confines of sheet 244, Ado map. Seventeen stream sediment samples were obtained from various sites and subjected to analysis to determine the concentrations of heavy metals such as lead (Pb), copper (Cu), zinc (Zn), chromium (Cr), cadmium (Cd), barium (Ba), arsenic (As), nickel (Ni) and vanadium (V) using X-ray Fluorescence (XRF). The results showed that the concentrations of these metals exceeded permissible levels at most sampling sites, indicating significant contamination of the stream sediments. The concentrations and pollution levels of the heavy metals from selected sampling sites were documented for ecological and health risk evaluations.</p></div><div><h3>Result</h3><p>The findings revealed that the concentrations of these metals surpassed acceptable thresholds at the majority of sampling locations, indicating significant contamination of the stream sediments. The concentrations of heavy metals, specifically Cr and Cd, exhibit moderate contamination, while Pb and Ba demonstrates a significant contamination factor with moderate to extreme degree of contamination. Several ecological risk indices were calculated to evaluate the potential ecological risks. The results revealed that the stream sediments posed considerable to very high ecological risks at most sites based on the risk quotient, contamination factor and pollution load index. The non-carcinogenic and carcinogenic risk assessments for heavy metals in stream sediments exposed potential health risks, especially for children, indicating the need for protective measures. The cumulative cancer risk, particularly for adults, raised concerns about the overall health implications of prolonged exposure to the heavy metal concentrations in the streams.</p></div><div><h3>Conclusion</h3><p>The study also evaluated ecological and health risks, revealing potential risks from heavy metals. Hazard and cancer risk assessments suggested the increasing potential of heavy metals to pose health risks, particularly for inhabitants of the area.</p></div>","PeriodicalId":73997,"journal":{"name":"Journal of trace elements and minerals","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2773050624000065/pdfft?md5=49099626aa853716b209d35c184bfc4f&pid=1-s2.0-S2773050624000065-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140191186","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Corrigendum to “Semen characteristics, nutrient utilization and immuno-endocrine status in response to dietary supplementation of a novel trace mineral mixture in crossbred bulls” [Journal of Trace Elements and Minerals Volume 5 (2023) page 1-9]","authors":"Rashika Srivastava ,&nbsp;Prasanth M. Nair ,&nbsp;Raju Kr. Dewry ,&nbsp;Nitish Kulkarni ,&nbsp;Veena Mani ,&nbsp;Mukesh Bhakat ,&nbsp;Goutam Mondal","doi":"10.1016/j.jtemin.2023.100095","DOIUrl":"https://doi.org/10.1016/j.jtemin.2023.100095","url":null,"abstract":"","PeriodicalId":73997,"journal":{"name":"Journal of trace elements and minerals","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2773050623000484/pdfft?md5=df98a88a11b6a7934024a84d44bc5fcd&pid=1-s2.0-S2773050623000484-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139992803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Contamination levels of potentially toxic elements within the Ogun River estuary sediments, southwest Nigeria: Ecological and human health risk assessments","authors":"Olusegun A. Phillips ,&nbsp;Olugbenga T. Fajemila","doi":"10.1016/j.jtemin.2024.100120","DOIUrl":"https://doi.org/10.1016/j.jtemin.2024.100120","url":null,"abstract":"<div><h3>Background</h3><p>The Ogun River estuary is located at the northwestern corner of the Lagos Lagoon in southwest Nigeria. Metal smelting, petroleum products transport, sewage disposal and chemical production are activities within this region, which could lead to the release of potentially toxic elements (PTEs) into the immediate environment. This study investigates the contamination levels of PTEs in the Ogun River estuary sediments, with emphasis on ecological and human health risks.</p></div><div><h3>Methods</h3><p>Fourteen sediment samples were collected from the estuary through the Ogun River and Majidun environments. These samples were analyzed for PTEs including Cd, Co, Cu, Fe, Mn, Ni, Pb and Zn using Inductively Coupled Plasma-Mass Spectrometer (ICP-MS). The contamination levels of sedimented PTEs from selected sample sites in the estuary were documented for ecological and health risk assessments.</p></div><div><h3>Results</h3><p>The analysis revealed bulk concentrations of PTEs across the sampling stations. The contamination factor (CF) showed high contamination levels for Cd and Zn at sample sites 2, 14 and 16; while the other metals revealed moderate pollution indices across all the sites. The risk factor (Er) values of Cd at stations 2, 15 and 16 showed potential contamination. The canonical correspondence analysis (CCA) signified that the distribution of the PTEs is independent of the environmental factors, exposing significant anthropogenic input. Evaluations of the sediment quality revealed that PTEs such as Cd, Cu, Ni, Pb, and Zn, whose concentrations are above their TECs and ERLs, have little to no detrimental effects on sediment living organisms. The health risk assessment has shown that HI values for the elements fall within the non-carcinogenic risk range. The effects of the mean concentrations of these metals on the non-carcinogenic risk (HQ) for adults and children in decreasing order of impact are Co &gt; Pb &gt; Mn &gt; Ni &gt; Cd &gt; Cu &gt; Zn &gt; Fe for both ingestion and dermal pathways. The human health risk index varies from low cancer risk in adult (LCR = 4.4 × 10⁻⁵) to moderate cancer risk in children (LCR = 4.1 × 10⁻⁴).</p></div><div><h3>Conclusion</h3><p>This study has revealed the significance of anthropogenic input of PTEs into the environment. The sedimented PTEs are within permissible range, but monitoring and assessment activities should be focused on the Majidun axis since most metals show high concentration in this region.</p></div>","PeriodicalId":73997,"journal":{"name":"Journal of trace elements and minerals","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2773050624000053/pdfft?md5=d4795d161136987ed2680657f2ed2962&pid=1-s2.0-S2773050624000053-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139898621","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of trace metals and quality of selected brands of vegetable cooking oils available on the Ghanaian market","authors":"Gerheart Winfred Ashong,&nbsp;Boansi Adu Ababio,&nbsp;Edward Ebow Kwaansa-Ansah","doi":"10.1016/j.jtemin.2024.100119","DOIUrl":"10.1016/j.jtemin.2024.100119","url":null,"abstract":"<div><h3>Background</h3><p>Vegetable cooking oils are important ingredients for the cooking of food in every Ghanaian kitchen. The scarcity of studies on potentially toxic metals, and physicochemical properties in vegetable cooking oils globally necessitated this investigation. This study aims to contribute to consumer awareness by assessing the quality and safety of vegetable cooking oils in the Ghanaian market.</p></div><div><h3>Methods</h3><p>Vegetable cooking oils were obtained from Ayigya market, a popular and busy open-air market located in Kumasi, Ghana. Physicochemical parameters such as refractive index, acid, iodine, saponification, and peroxide values and trace metals such as Pb, Cd, Zn, Ni, Cr, As, Ca, and Fe were analyzed using standard analytical methods and flame atomic absorption spectrophotometer.</p></div><div><h3>Results</h3><p>The findings showed an acid value ranging from 0.817 to 1.699 mgKOH/g, iodine value, from 60.680 to 122.300 gI₂/100 g, peroxide value from 10.890 to 34.730 meq/kg, saponification value from, 189.060 to 202.310 mgKOH/g, and refractive indice ranged from 1.463 to 1.471, respectively. Concentrations of potentially toxic metals such as Ni, Cr, As, Pb, and Cd in all cooking oils were below detection limits. Concentrations of Fe, Zn, and Ca were found within the range of 1.690 to 2.480 mg.L⁻¹, 0.014 to 0.048 mg.L⁻¹, and 0.118 to 1.328 mg.L⁻¹ respectively.</p></div><div><h3>Implications</h3><p>While no trace metal contamination was detected, physicochemical parameters hinted at potential rancidity concerns. Pearson's correlation and principal component analysis identified poor storage and handling conditions as primary key factors to cooking oil spoilage.</p></div><div><h3>Conclusions</h3><p>The study recommends that regulatory bodies perform routine examinations to guarantee that commercially accessible vegetable oils satisfy the required quality and safety criteria. Furthermore, consumers should be educated on the importance of proper cooking oil storage and disposal.</p></div>","PeriodicalId":73997,"journal":{"name":"Journal of trace elements and minerals","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2773050624000041/pdfft?md5=ca8a23715a64a603e411d35ee3060f62&pid=1-s2.0-S2773050624000041-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139878907","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}