Search Results (124)

Mycotoxin contamination in wheat, a staple food critical to human nutrition, poses significant public health concerns. This study investigated the natural occurrence of 17 mycotoxins in Tunisian durum wheat, assessed the influence of soil tillage practices on mycotoxin contamination, and performed an associated exposure risk assessment. A total of 167 wheat samples were randomly collected over two years (2021 and 2022) from fields managed under conventional tillage (CT) and no-tillage (NT) systems during both pre- and post-harvest periods. Mycotoxins were extracted using the QuEChERS method and quantified via UHPLC-MS/MS. The results demonstrated contamination by ZEN, DON, OTA, ENA1, ENB, and ENB1. Among regulated mycotoxins, OTA was the most prevalent, detected in 68 out of 167 samples with a mean concentration of 1.85 µg/kg. ZEN was the most abundant, detected in 65 samples with a mean concentration of 26.85 µg/kg, while DON was less frequently detected in 62 samples with a mean concentration of 0.68 µg/kg. Regarding emerging mycotoxins, ENB was the most prevalent and abundant, found in 51 samples with a mean concentration of 10.13 µg/kg; ENB1 and ENA1 were detected in 20 and 10 samples, with mean concentrations of 3.38 µg/kg and 1.69 µg/kg, respectively. Furthermore, mycotoxin concentrations varied according to agricultural practices. DON, ZEN, ENA1, ENB, and ENB1 showed higher frequencies and concentrations (ranging from 0.08 to 210.11 µg/kg) in samples collected during the 2021 pre-harvest period from NT fields. In contrast, OTA exhibited greater prevalence and higher concentrations (ranging from 2.33 to 9.78 µ/kg) in samples collected during the 2022 post-harvest period from CT fields. The Estimated Daily Intake (EDI) of mycotoxins by Tunisian adults was calculated based on contamination levels in raw durum wheat from fields under NT and CT practices, resulting in the following values (ng/kg bw/day), with the first value corresponding to NT samples and the second to CT samples: OTA (17.3; 20.8), ZEN (466.3; 194.0), DON (8.0; 7.56), ENA1 (4.30; 18.85), ENB (105.17; 121.08), and ENB1 (49.91; 40.91). Both the Margin of Exposure (MOE) values for OTA and the Hazard Quotients (HQ) for ZEN and DON exceeded established safety thresholds, indicating potential health risks for Tunisian adults. These findings highlight the urgent need to implement stricter mycotoxin regulations in Tunisia and enhance surveillance systems. Further research is warranted to elucidate the mechanisms by which soil tillage practices influence mycotoxin contamination and to develop targeted mitigation strategies to ensure food safety. Full article

Breast milk is the ideal source of nutrition for infant growth and development. However, when nursing mothers consume aflatoxin B₁ (AFB₁)-contaminated food, the hydroxylated form aflatoxin M₁ (AFM₁) is transferred to breast milk and urine. AFB₁ and its metabolite AFM₁ are potent carcinogens and can pose significant risks to food safety and public health worldwide. This study determined the prevalence of AFM₁ in the breast milk and urine of nursing mothers in Bangladesh and estimated infant exposure to this toxin. Breast milk and urine samples (72 each), collected from nursing mothers in three different regions of the country, were analyzed for AFM₁ occurrence via a sensitive enzyme-linked immunosorbent assay (ELISA). AFM₁ was present in 88.9% of urine samples, with a mean concentration of 109.9 ± 52.8 pg/mL, ranging from 40.0 to 223.8 pg/mL. AFM₁ was also detected in 50% of the breast milk samples, with a mean concentration of 4.6 ± 0.7 pg/mL, ranging from 4.0 to 6.1 pg/mL. A strong correlation (r = 0.72) was observed between milk and urinary AFM₁ levels, indicating these as suitable biomarkers of AFB₁ exposure. Yet, no significant correlations were identified between AFM₁ levels in either milk or urine and the food items typically consumed by nursing mothers. The average estimated daily intake (EDI) for AFM₁ with breast milk was 0.59 ng/kg bw/day, with no significant difference between infants (0.57 ng/kg bw/day) and toddlers (0.65 ng/kg bw/day). A comparison of computed EDI ranges for AFM₁ with a proposed tolerable daily intake value resulted in Hazard Indices below 1 for all exposure scenarios. This indicates that the AFM₁ concentrations in breast milk from three regions of Bangladesh raise no concern. Also, the measured levels were far lower than the maximal levels set in the EU regulations for AFM₁ in dairy milk and infant formula (50 ng/kg and 25 ng/kg, respectively). Full article

In this study, the aim was to determine the levels of aflatoxins and ochratoxin A (OTA) in baby food consumed in Hatay using fluorescence-detector HPLC (HPLC-FLD) and to reveal the health risks that may occur in babies through consumption of these foods. To determine the dietary intake and to reveal the health risk assessment, the estimated daily intake (EDI) for all mycotoxins, the margin of exposure (MOE) for aflatoxin B₁ (AFB₁), aflatoxin M₁ (AFM₁) and OTA, the hazard index (HI) and the consumption-related hepatocellular cancer risk for AFM₁ were calculated. It was reported that 11.5% and 8.2% of the analyzed samples exceeded the legal limit set for AFB₁ and OTA, respectively. However, it was found that AFM₁ concentrations in all samples did not exceed the legal limit. Based on the estimated consumption amounts of the baby foods, the HI values calculated for AFM₁ were below 1, and the MOE values calculated for AFB₁ and AFM₁ were above 10.000, indicating that the consumption of baby foods does not pose a risk regarding AFB₁ and AFM₁ for babies. However, it was determined in all other products, except for toddler formula, that the MOE values calculated for OTA were below 10.000, indicating that their consumption may pose serious health problems in babies. Full article

Capsella bursa-pastoris (L.) Medik (C. bursa-pastoris) is an underexplored medicinal herb and bioindicator of potentially toxic elements (PTEs). Its broad traditional utilization combined with its high capacity for PTE accumulation may endanger human health. Herein, we investigated the concentrations and mobility of PTEs (Ba, Co, Cr, Cu, Fe, Mn, Ni, Sr, and Zn) in the urban soil–C. bursa-pastoris system and comprehensively assessed potential health risks associated with exposure to contaminated soils, plant and herbal extracts. Cu, Zn, Sr, and Mn were the most abundant in soils and predominantly phytoavailable. The calculated values of the geo-accumulation index (I_geo) indicated moderate to heavy Cu, Zn, and Sr contamination in the soil. C. bursa-pastoris demonstrated two strategies for PTEs—the exclusion of Ba, Cr, Mn, and Sr, and the accumulation of Cu, Ni, Co, and Fe. Principal Component Analysis (PCA) classified samples from four cities based on the PTE levels in soils, plants, and herbal extracts. Although plant tissues contained elevated levels of PTEs, the estimated daily intake (EDI), target hazard quotient (THQ), and lifetime carcinogenic risk (LCR) demonstrated no significant health risks from consuming C. bursa-pastoris and its extracts. The obtained results indicated the higher sensitivity of children to the hazardous effects of PTEs compared to adults. Extensive risk assessments of polluted soils and inhabiting plants are crucial in PTE monitoring. This study underscored its importance and delivered new insights into the contamination of medicinal herbs, aiming to contribute to implementing safety policies in public health protection. Full article

In this study, the frequency of aflatoxin M1 (AFM1) occurrence in raw milk was investigated across different seasons over a three-year period from 2022 to 2024 in Croatia. Risk assessment was conducted using estimated daily intake (EDI), hazard index (HI), and margin of exposure (MOE) for various age groups and both genders. The frequency of AFM1 detection above the maximum level (ML) ranged from 1.60% to 15.1%. The average incidence of AFM1 exceeding the ML was 5.67%, with the highest incidence recorded in autumn 2024. AFM1 levels within the limit of detection (LOD) and ML were found in 13% of the samples. The average mean value of AFM1 over the three-year period was 19.2 ng/kg. The highest mean AFM1 EDI values were determined for toddlers (0.61–0.67 ng/kg bw/day) and children (0.41–0.43 ng/kg bw/day). The lowest EDI values were observed in elderly females and males (0.058–0.074 ng/kg bw/day). The EDI values for females and males were slightly different. The risk assessment, based on the HI and MOE, indicated that toddlers and children are at the highest risk of exposure to AFM1, which raises significant health concerns. Additionally, consumers of large quantities of milk face a high risk of exposure, particularly during the spring and autumn seasons. For adults and the elderly, milk consumption does not pose a serious health risk. Full article

Heavy metal contamination in food has become a significant global food safety concern. This study assessed the concentrations of As, Ca, Cd, Co, Cr, Cu, Fe, Hg, Mn, K, Mg, Na, Ni, Se, Pb, and Zn in 13 locally grown vegetables using microwave-assisted acid digestion and ICP-MS. The potential human health risks associated with their consumption were also evaluated. Vegetable samples were collected from the local farmer’s market in Grand Forks, North Dakota. The mean levels (μg/g) of Na, Mg, K, Ca, Fe, Se, Mn, Cu, Zn, Co, Hg, Cr, Ni, As, Cd, and Pb were 1001, 2935, 30474, 686.0, 52.90, 0.171, 37.63, 4.936, 21.33, 0.069, 0.0030, 0.049, 0.736, 0.083, 0.298, and 0.019, respectively, having the following decreasing trend: K > Mg > Na > Ca > Fe > Mn > Zn > Cu > Ni > Cd > Se > As > Co > Cr > Pb > Hg. The highest total metals level was found in spinach, with the following decreasing order: spinach > tomato > sugar beet > white eggplant > cucumber ~ kale > green chili > green bean > dill ~ potato > capsicum > onion > corn. Spinach exhibited the highest concentrations of Cd, Cr, Pb, and Hg, which suggests a higher risk of metal exposure from its consumption. Toxic metals except Cd were found to be lower than the maximum allowable concentrations set by international agencies among the analyzed vegetables, while Cd levels were higher than maximum allowable levels in most of the vegetables. Health risks associated with metal intake by vegetable consumption were evaluated in terms of estimated daily intake (EDI), non-carcinogenic risks were evaluated by the target hazard quotient (THQ) and Hazard Index (HI), and carcinogenic risks were evaluated by target cancer risk (TCR). The EDI values of all the metals were found to be below the maximum tolerable daily intake (MTDI). The highest EDI value for Mn, Zn, Hg, Cr, Cd, and Pb was noted in spinach. THQ values for Cd, Co, and As were higher than 1 in most of the vegetable species analyzed, indicating non-carcinogenic health effects to consumers. HI results also posed a non-carcinogenic health risk associated with the intake of these vegetables. Mean TCR values of Cr, Ni, As, and Cd indicated carcinogenic risk for consumers. This study showed that there are potential health risks with consumption of these vegetables. Lastly, regular monitoring of metal levels in vegetables is suggested/recommended to minimize health risks and support pollution control efforts. Full article

Dietary exposure of Singapore population to foodborne and natural toxins was estimated through Total Diet Study (TDS) approach. Among the common mycotoxins and plant toxins studied, such as aflatoxins, ochratoxin A, zearalenone, deoxynivalenol, and fumonisins, aflatoxins were identified with food safety concerns. Aflatoxin occurrence was determined in 642 commonly consumed foods, with a detection rate of 4%, and a mean concentration of 0.01–0.07 µg/kg. Dietary exposure and risk assessment of aflatoxins for the general population revealed a mean estimated daily intake (EDI) of 0.0002–0.002 ng/kg bw/day, a margin of exposure (MOE) of 2819–7101, cancer risk of 0.002–0.004 additional cases per 100,000 person per year, and a hazard quotient (HQ) of 0.19–0.20. Despite the low overall estimated exposure risk for the general population, elevated exposure was observed among the eaters-only group, with the highest upper-bound (UB) exposure reaching 3.4 ng/kg bw/day for high consumers (95th percentile) of satay sauce, a popular Asian delicacy. The corresponding cancer risk of 0.23 additional cases per 100,000 individuals, or 14 additional cases annually, contributes to an estimation of 1% of the 1442 liver cancer cases reported in Singapore in 2022. These findings highlight the importance of continuous monitoring and call for appropriate mitigation strategies for further reduction in aflatoxin exposure in the Singapore population. Full article

This study evaluated the prevalence of aflatoxin M1 (AFM1) in milk marketed in Tirana, Albania, along with dietary exposure and associated potential health risks. The World Health Organization has categorized Albania in cluster G02 of GEMS/FOOD, highlighting that milk is a staple in the Albanian diet, which points to a possible health risk. A total of 141 milk samples, comprising both Ultra-High Temperature (UHT) and pasteurized types, were collected from local markets in Tirana and analyzed from March 2023 to February 2024. The determination of AFM1 levels was carried out using High-Pressure Liquid Chromatography with a Fluorescence Detector (HPLC-FLD), a precise and dependable technique for identifying and measuring aflatoxins in food products. Aflatoxin M1 was found in 62.4% of the milk samples, with 26.2% surpassing the European Union’s maximum residue levels (MRL). The mean AFM1 concentrations were 58.8 ± 95.8 ng/kg, reaching a maximum level of 399.0 ng/kg. The Estimated Daily Intake (EDI) for various groups—toddlers, children, adolescents, and adults—was determined to be 2.161, 1.297, 0.519, and 0.370 ng/kg of body weight per day, respectively. The Hazard Index (HI), derived from the AFM1 exposure for four population groups, was 10.81 (toddlers), 6.48 (children), 2.59 (adolescents), and 1.85 (adults). The Margin of Exposure (MoE) was 1.85, 3.08, 7.71, and 10.81, respectively. The incidence of hepatocellular carcinoma (HCC) per 100,000 people in the four groups was 0.034, 0.021, 0.008, and 0.006, respectively. The study is the first comprehensive evaluation of AFM1 prevalence, highlighting the potential risks associated with milk consumption, as milk is a dietary staple in Albanian households. It addresses a critical public health concern regarding aflatoxin M1 (AFM1) contamination in milk consumed in Tirana, Albania, by highlighting the need for ongoing monitoring, regulatory measures, and educational outreach to enhance food safety and safeguard public health in Albania, as well as in other regions facing similar concerns. Full article

The toxicity of metals such as lead (Pb) and cadmium (Cd) makes heavy metal contamination in food products a major health concern. The aim of this study is to measure the levels of Pb and Cd in yogurt samples that were collected from 11 distinct Lebanese locations and determine their compliance with the legal limits set by the European Commission (0.02 mg/kg for Pb and 0.005 mg/kg for Cd). A total of 165 yogurt samples were examined using atomic absorption spectrophotometry (AAS). Interestingly, the findings showed that 10.9% of samples had Pb concentrations over the allowable limit; the highest amounts were observed in Baalbeck-Hermel (0.118 mg/kg), North Area (0.125 mg/kg), and South Lebanon (0.115 mg/kg). In addition, the highest detected concentrations of Cd were found in North Area (0.094 mg/kg), Baalbeck-Hermel (0.076 mg/kg), and Akkar (0.042 mg/kg), with 14.5% of samples above the limit. The results show regional differences in contamination, which are probably caused by industrial emissions, agricultural activities, and environmental pollution. To better understand the potential health implications, the estimated daily intake (EDI) of Pb and Cd through yogurt consumption was calculated and compared to international health-based guidance values. Although the EDI values suggest a low risk from yogurt alone, the findings highlight the importance of cumulative exposure and emphasize the necessity of regular monitoring and stricter implementation of food safety laws to decrease exposure to heavy metals through dairy intake. Full article

Mycotoxins are toxic secondary metabolites produced by fungi that often contaminate food materials used in beer production, posing health risks to consumers. This study investigated the occurrence and levels of mycotoxins in commercial beers commercially available in São Paulo, Brazil, and assessed the estimated daily intake (EDI) of quantifiable mycotoxins. Sixty beer samples from different brands and compositions (barley malt, malt with corn, and malt with rice) were analyzed for deoxynivalenol (DON); aflatoxins (AFs) B₁, B₂, G₁, and G₂; ochratoxin A (OTA); T-2 toxin; fumonisins (F) (B₁ and B₂); and zearalenone (ZEN) using ultra-performance liquid chromatography coupled to tandem mass spectrometry. FB₁ was quantified in all samples, while DON, ZEN, OTA, AFB₁, and T-2 toxin were detected in 40, 65, 25, 20, and 10%, respectively. Mean levels of 2.38, 36.41, 0.19, 1.05, 0.78, and 0.47 ng/mL were observed for FB₁, DON, ZEN, OTA, AFB₁, and T-2 toxin, respectively. Mycotoxin co-occurrence was observed in 43 (71.7%) samples analyzed, with DON and FB₁ as the most frequent combination (20%). The EDI values of individual mycotoxins were generally below tolerable daily intakes established by international agencies. However, the co-occurrence of up to four different mycotoxins in beers warrants concern on the possible interactive toxic effects of mycotoxin mixtures and reinforces the necessity of specific regulations for ready-to-drink beverages in Brazil. Full article

Aflatoxin M1 (AFM1), a toxic metabolite of aflatoxin B1 (AFB1), is commonly found in cow’s milk (CM) when dairy cattle consume contaminated feed. Chronic exposure to AFM1 poses serious health risks, particularly for children. This study aimed to quantify AFM1 levels in commercial CM available in Mexico and assess the associated carcinogenic risk across six age groups. A total of 23 milk samples were collected between March and July 2023 from supermarkets and convenience stores. AFM1 was measured using high-performance liquid chromatography (HPLC). Estimated daily intake (EDI), carcinogenic risk index (CRI), and Monte Carlo simulations (MCS) to model exposure were employed. AFM1 was detected in all samples, with 80% exceeding the legal limits set by Mexican and European regulations. The highest CRI values were observed in children aged 1–4 years (CRI > 5 × 10³), indicating an elevated risk. There were no statistically significant differences in AFM1 concentration among different milk or thermal treatments. A cluster analysis revealed patterns related to AFM1 content, price, and processing methods. The widespread detection of AFM1 raises a public health concern, especially for vulnerable populations. This underscores the need for targeted regulatory strategies and improved control of aflatoxins in the dairy production chain. Full article

Background/Objectives: The consumption of caffeine products among children in China is on the rise, yet there remains a paucity of evidence regarding the variability of caffeine consumption and the influencing factors. Urinary caffeine levels provide a valid indicator of caffeine intake, as it directly reflects the quantitative measure of consumption within the population. This study aimed to investigate the effects of diet, gender, and region on urinary caffeine concentrations in Chinese children and their parents, specifically focusing on participants from Guangdong province and Guangxi province. Methods: Morning urine samples were pretreated using liquid-liquid extraction. Caffeine and creatinine concentrations were analyzed using ultra-performance liquid chromatography coupled with triple quadrupole mass spectrometry (UPLC-MS/MS), with quality control measures ensuring method accuracy (recovery rate: 92.8–122%, RSD < 20%). Caffeine exposure was assessed through estimated daily intake (EDI) calculations, and statistical analyses, including weighted regression and Spearman correlation, were conducted to evaluate associations with demographic and dietary variables. Results: The findings revealed that urinary caffeine levels and detection rates among Chinese children were significantly lower than those observed in the United States (30.1 ng/mL), with a median concentration of 2.18 ng/mL and a detection rate of 45%. Urinary caffeine concentrations in males were slightly higher than in females; however, these gender differences were not statistically significant. Certain dietary habits, particularly milk consumption, were found to influence urinary caffeine levels and detection rates. Using the random forest method, urine caffeine detection was highest (nearly 60%) when milk was consumed three times a week. Regionally, children in Guangdong had marginally higher urinary caffeine concentrations compared to those in Guangxi (median: 5.20 μg/g_crea vs. 1.58 μg/g_crea). The estimated daily caffeine intake suggested that children in China consume less caffeine than their counterparts in other countries. Conclusions: These results indicate that dietary habits significantly correlated with caffeine consumption in children, and urinary caffeine concentration serves as a valuable measure for dietary research. Full article

Objectives: The study aimed to assess the intake of total fat, saturated fatty acids (SFAs), and trans fatty acids (TFAs) from sweet and salty snacks among Polish schoolchildren and to evaluate differences by age, gender, and nutritional status. Methods: A cross-sectional study was conducted among 362 pupils aged 10–15 years. Snack consumption was assessed using a validated food frequency questionnaire. Fat content was estimated based on product labels and databases, and the Estimated Daily Intake (EDI) of fats was calculated. Intake levels were compared to dietary recommendations and analyzed by gender, age, and BMI category. Results: The mean fat intake from snacks was 34.5 g/day, covering nearly 47% of the recommended daily intake. Over 12% of students exceeded total fat recommendations, 20% exceeded SFA limits, and more than 30% surpassed the TFA intake threshold. The highest intake of fats was observed among 10-year-olds. Over 60% of students in this age group exceeded the TFA’s upper intake level. Girls showed slightly higher intakes of total fat and SFAs than boys, although the differences were not statistically significant. Fat intake was highest among children with overweight or obesity. Conclusions: Snacks are a major contributor to unhealthy fat intake among school-aged children, particularly in the youngest age group and those with excess body weight. Early, targeted nutrition education and regulatory strategies are needed to promote healthier snacking habits and reduce the long-term risk of diet-related non-communicable diseases. Full article

This study evaluates the heavy metals concentrations in sprat (Sprattus sprattus, Linnaeus, 1758) from the Romanian Black Sea, assessing both ecological implications and human health risks associated with consumption. Using long-term data spanning 1994–2019, levels of copper (Cu), cadmium (Cd), lead (Pb), nickel (Ni), and chromium (Cr) in dorsal muscle tissues were analyzed to identify contamination trends and episodic pollution events. Although most concentrations remained below regulatory thresholds, occasional exceedances of Cd and Pb suggest intermittent pollution inputs. Health risks were assessed using dietary indices including estimated daily intake (EDI), target hazard quotient (THQ), total hazard quotient (TTHQ), and carcinogenic risk index (CRI). Findings indicate that, under current exposure levels, regular sprat consumption poses minimal risk. However, prolonged intake during peak contamination periods may contribute to cumulative toxic effects, with implications for ecosystem stability and food safety. Given the persistence of heavy metals and their interactions with co-occurring pollutants, such as persistent organic pollutants (POPs) and polycyclic aromatic hydrocarbons (PAHs), ongoing monitoring remains essential. This study supports the development of sustainable environmental policies aimed at protecting marine biodiversity and consumer health in the Black Sea region. Full article

The bioaccumulation of heavy metals, such as Cr, Cd, Pb, and As, in vegetables irrigated with contaminated water represents a risk to human health. The objective of this study was to evaluate the Cr concentration in chayote fruits in sites irrigated with contaminated water from Lake Chapala and to assess the potential risk to human health using the estimated daily intake (EDI), objective risk quotient (THQ), and carcinogenic risk quotient (TCR). In parallel, interviews were conducted with local producers to understand their perceptions of the quality of irrigation water and their willingness to adopt more sustainable agricultural practices. In two of the sites and seasons, Cr concentrations exceeded the FAO-WHO limit of 2.3 mg·kg⁻¹ (from 2.49 to 4.82 mg·kg⁻¹). In all, 90% of producers used water from Lake Chapala to irrigate their crops, although most did not perform water quality analyses, despite 32% being aware that the water was contaminated. The results highlight the need to implement strategies to increase awareness of the quality of irrigation water, as well as the need for comprehensive public policies that combine technical assessments and producer perceptions to reduce the risks associated with the use of contaminated irrigation water to promote sustainable agricultural production. Full article