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Analysis of aflatoxin M1 contamination in milk and cheese produced in Mexico: a review 墨西哥产牛奶和奶酪中黄曲霉毒素M1污染分析综述
IF 2 4区 医学 Q2 Medicine Pub Date : 2021-07-29 DOI: 10.3920/wmj2020.2668
C. Jiménez-Pérez, S. Alatorre-Santamaría, S. Tello-Solís, L. Gómez‐Ruiz, G. Rodríguez-Serrano, M. García‐Garibay, A. Cruz-Guerrero
Due to the carcinogenic character of aflatoxins when present in foods, these compounds are considered a risk to human health. This systematic review aimed at compiling the available research data on detection and quantification of aflatoxin M1 (AFM1) in milk and common types of cheese produced in Mexico in the past two decades. A limited number of studies were found that matched the purpose of our review. Only ten research works focused on the evaluation of AFM1 content in milk while three studies analysed the occurrence of this mycotoxin in oaxaca and panela cheeses. HPLC-FD and ELISA were the methods of choice utilised to detect AFM1. Concentrations higher than 0.5 μg AFM1/kg, a maximum limit set in current food regulation in Mexico, were found in major dairy brands consumed in Mexico. Analysis of raw milk produced during the rainy season in the states of Jalisco (2007) and Chiapas (2013) showed mycotoxin levels within the regulation limits while milk samples obtained during the dry season in the Mexico City and the State of Mexico (2008) exceeded that threshold. For cheeses, 33% of the artisanal produced oaxaca type samples from Veracruz (2016) and 55% of those acquired in Mexico City (2019) were found above the limit set for milk. In contrast, the panela cheese samples obtained in Baja California and Guanajuato (2009) complied with the AFM1 regulation. Additionally, the presence of AFB1 and its hydroxylated metabolites other than AFM1 were determined in the major milk brands at concentrations that could be of high risk for human health. Similar results were reported for both artisan and industrially produced oaxaca cheese. Finally, mycotoxins enter human food chain through animals fed with contaminated fodder. Our systematic review demonstrated the urgent need to amend the existing food regulation in Mexico to include mycotoxins as potent contaminants in cheese.
由于黄曲霉毒素在食物中存在的致癌特性,这些化合物被认为对人类健康有风险。本系统综述旨在汇编过去二十年来墨西哥生产的牛奶和常见奶酪中黄曲霉毒素M1 (AFM1)检测和定量的现有研究数据。有限数量的研究被发现符合我们综述的目的。只有10项研究集中在牛奶中AFM1含量的评估上,而3项研究分析了瓦哈卡和帕内拉奶酪中这种霉菌毒素的发生。选择HPLC-FD和ELISA检测AFM1。在墨西哥消费的主要乳制品品牌中,发现浓度高于0.5 μg AFM1/kg,这是墨西哥现行食品法规规定的最高限量。对哈利斯科州(2007年)和恰帕斯州(2013年)雨季生产的原料奶的分析显示,霉菌毒素水平在规定范围内,而墨西哥城和墨西哥州(2008年)旱季获得的牛奶样本则超过了这一阈值。对于奶酪,来自韦拉克鲁斯州(2016年)手工生产的瓦哈卡类型样品中有33%和墨西哥城(2019年)获得的样品中有55%被发现超过了牛奶的限量。相比之下,在下加利福尼亚州和瓜纳华托州(2009年)获得的panela奶酪样品符合AFM1法规。此外,在主要牛奶品牌中发现了AFB1及其羟基化代谢物,其浓度可能对人类健康构成高风险。据报道,手工制作和工业生产的瓦哈卡奶酪也有类似的结果。最后,真菌毒素通过喂食受污染饲料的动物进入人类食物链。我们的系统综述表明,迫切需要修改墨西哥现有的食品法规,将真菌毒素作为奶酪中的强效污染物。
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引用次数: 1
Biomonitoring aflatoxin B1 exposure of residents from the Amazon region: a pilot study 亚马逊地区居民黄曲霉毒素B1暴露的生物监测:一项试点研究
IF 2 4区 医学 Q2 Medicine Pub Date : 2021-07-22 DOI: 10.3920/WMJ2020.2627
K. Higashioka, A. Kluczkovski, E. S. Lima, A. Lucas
The present study was a pilot study that aimed to evaluate the occurrence of aflatoxins (AF) in the human diets and its presence in human urine as a metabolite (aflatoxin M1; AFM1). Volunteers from...
本研究是一项初步研究,旨在评估人类饮食中黄曲霉毒素(AF)的发生率及其在人类尿液中的代谢物(黄曲霉毒素M1;AFM1)。志愿者从…
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引用次数: 0
Intra-species variability in Fusarium langsethiae strains in growth and T-2/HT-2 mycotoxin production in response to climate change abiotic factors langsethiae镰刀菌生长和T-2/HT-2真菌毒素产生的种内变异性对气候变化非生物因素的响应
IF 2 4区 医学 Q2 Medicine Pub Date : 2021-06-30 DOI: 10.3920/wmj2020.2584
C. Verheecke-vaessen, A. Lopez-Pietro, E. García-Cela, Á. Medina, N. Magan
The objective of this study was to evaluate the potential intra-species variability of 3 Fusarium langsethiae strains in response to extreme climate change (CC) conditions on an oat-based matrix. The impact of elevated temperature (25 vs 30-34 °C) coupled with increasing drought stress (0.98 vs 0.95 aw) and elevated CO2 (400 vs 1000 ppm) were examined on lag phases prior to growth, growth rate, and production of the mycotoxins T-2 and HT-2 and their ratio. In comparison to the control conditions (25 °C; 0.98; 400 ppm), exposure to increased temperature (30-34 °C), showed similar reductions in the lag phase and fungal growth rates of all 3 strains. However, with elevated CO2 a reduction in both lag phases prior to growth and growth rate occurred regardless of the aw examined. For T-2 and HT-2 mycotoxin production, T-2 showed the most intra-species variability in response to the interacting abiotic stress factors, with the 3 strains having different environmental conditions for triggering increases in T-2 production: Strain 1 produced higher T-2 toxin at 25 °C, while Strain 2 and the type strain (Fl201059) produced most at 0.98 aw/30 °C. Only Strain 2 showed a reduction in toxin production when exposed to elevated CO2. HT-2 production was higher at 25 °C for the type strain and higher at 30-34 °C for the other two strains, regardless of the aw or CO2 level examined. The HT-2/T-2 ratio showed no significant differences due to the imposed interacting CC abiotic conditions.
本研究的目的是评估3个郎氏镰刀菌菌株在燕麦基质上对极端气候变化(CC)条件的潜在种内变异性。研究了温度升高(25 vs.30-34°C)、干旱胁迫增加(0.98 vs.0.95 aw)和二氧化碳升高(400 vs.1000 ppm)对真菌毒素T-2和HT-2生长、生长速率和产生及其比例之前的滞后期的影响。与对照条件(25°C;0.98;400ppm)相比,暴露于升高的温度(30-34°C)下,所有3株菌株的滞后期和真菌生长率都有类似的降低。然而,随着CO2浓度的升高,无论检查的aw如何,生长前的滞后阶段和生长速率都会降低。对于T-2和HT-2真菌毒素的产生,T-2在相互作用的非生物胁迫因素的反应中表现出最大的种内变异性,3个菌株具有不同的环境条件来触发T-2产量的增加:菌株1在25°C时产生更高的T-2毒素,而菌株2和型菌株(Fl201059)在0.98 aw/30°C时产量最高。只有菌株2在暴露于升高的CO2时显示出毒素产生的减少。无论检测的aw或CO2水平如何,该类型菌株在25°C时的HT-2产量更高,而其他两种菌株在30-34°C时更高。HT-2/T-2比率由于所施加的相互作用CC非生物条件而没有显示出显著差异。
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引用次数: 1
Development of patulin certified reference material using mass balance and quantitative NMR 利用质量平衡和定量核磁共振技术开发展青霉素标准物质
IF 2 4区 医学 Q2 Medicine Pub Date : 2021-06-24 DOI: 10.3920/wmj2021.2691
X. Li, H. Li, Wen Zhang, Qi Zhang, Z. Guo, S. Song, G. Zhao
The certified reference materials (CRMs) are necessary for accurate quantification and insurance of comparability and traceability of results. Patulin is a typical mycotoxin in a variety of food commodities. Here, patulin CRM GBW(E)100673 was characterised and its purity was assessed by two independent orthogonal approaches including mass balance (MB) and quantitative nuclear magnetic resonance spectroscopy (qNMR) methods. From MB equation, the calculated purity was 996.9 mg/g with subtraction of water, volatile solvent, inorganic and structurally related impurities. In the other qNMR method, the calculated purity was 996.7 mg/g. This CRM was homogeneous and stable for at least 9 months under -20 °C in dark. Finally, a purity of 997 mg/g with an expanded uncertainty of 3 mg/g (k=2) was finally assigned to patulin CRM in this study. High-purity patulin CRM was fully characterised and assessed for the first time. The new CRM can be applicable to routine monitoring and risk assessment for assurance of accuracy results in food safety.
认证参考材料(CRM)是准确量化和确保结果可比性和可追溯性所必需的。棒曲霉素是一种典型的霉菌毒素,存在于各种食品中。在此,对棒曲霉素CRM GBW(E)100673进行了表征,并通过两种独立的正交方法(包括质量平衡(MB)和定量核磁共振波谱(qNMR)方法)评估其纯度。根据MB方程,减去水、挥发性溶剂、无机和结构相关杂质后,计算出的纯度为996.9 mg/g。在另一种qNMR方法中,计算出的纯度为996.7mg/g。该CRM在-20°C的黑暗中均匀稳定至少9个月。最后,在本研究中,最终将997 mg/g的纯度和3 mg/g(k=2)的扩展不确定度分配给棒曲霉素CRM。首次对高纯度棒曲霉素CRM进行了全面表征和评估。新的CRM可适用于日常监测和风险评估,以确保食品安全结果的准确性。
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引用次数: 5
Dietary exposure to mycotoxins of 1- and 2-year-old children from a Dutch Total Diet Study 荷兰总饮食研究中1岁和2岁儿童对真菌毒素的饮食暴露
IF 2 4区 医学 Q2 Medicine Pub Date : 2021-06-24 DOI: 10.3920/wmj2020.2676
A. Pustjens, J. Castenmiller, J. D. Biesebeek, T. C. Rijk, Ruud C. J. Dam, P. Boon
In 2017, a Total Diet Study was conducted in the Netherlands in which mycotoxins were analysed in foods and beverages consumed by 1- and 2-year-old children. These mycotoxins were aflatoxins, Alternaria toxins, citrinin, ergot alkaloids, fumonisins, ochratoxin A, patulin, sterigmatocystin, trichothecenes, and zearalenone. Long-term exposure was calculated by combining concentrations in foods and beverages with consumed amounts of these products. Analysed foods and beverages with a concentration below the detection limit that could contain the mycotoxin, were assigned a concentration equal to half this limit value. To assess if the exposure could result in a possible health risk, the high long-term exposure (95th percentile) was compared with a health-based guidance value (HBGV) or a margin of exposure (MOE) was calculated. Exposure to aflatoxins, Alternaria toxins, ochratoxin A and T-2/HT-2 sum may pose a health concern. Foods that contributed most to the exposure of these mycotoxins were bread, biscuits, breakfast cereals, chocolates, dried fruit, follow-on formula and fruit juices.
2017年,在荷兰进行了一项总饮食研究,分析了1岁和2岁儿童食用的食品和饮料中的真菌毒素。这些真菌毒素是黄曲霉毒素、交替菌毒素、柑桔毒素、麦角生物碱、伏马毒素、赭曲霉毒素A、展曲霉素、sterigmatocystin、曲霉烯和玉米赤霉烯酮。通过将食品和饮料中的浓度与这些产品的消费量相结合来计算长期暴露量。经分析的食品和饮料的浓度低于可能含有霉菌毒素的检测限,其浓度等于该极限值的一半。为了评估暴露是否可能导致健康风险,将高长期暴露(第95百分位)与基于健康的指导值(HBGV)或暴露边际(MOE)进行比较。接触黄曲霉毒素、交替菌毒素、赭曲霉毒素A和T-2/HT-2可能会造成健康问题。最容易接触这些真菌毒素的食物是面包、饼干、早餐谷物、巧克力、干果、后续配方奶粉和果汁。
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引用次数: 7
Detection of aflatoxin B1 adducts in Mexican women with cervical lesions 墨西哥宫颈病变妇女黄曲霉毒素B1加合物的检测
IF 2 4区 医学 Q2 Medicine Pub Date : 2021-05-24 DOI: 10.3920/WMJ2020.2602
L. León-Martínez, C. M. López-Mendoza, Y. Terán-Figueroa, R. Flores-Ramírez, F. Díaz-Barriga, L. E. Alcántara-Quintana
Cervical cancer (CC) is one of the most serious threats to the lives of women; co-factors in addition to oncogenic human papillomavirus (HPV) infection may be important in causing CC. Women in Mexi...
癌症宫颈癌是对妇女生命最严重的威胁之一;除了致癌的人乳头瘤病毒(HPV)感染外,其他共同因素可能是导致CC的重要因素。。。
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引用次数: 6
Exploratory real-time kinetic analysis of the cytotoxicity induced by maize silage mycotoxins in a calf intestinal epithelial cell line 玉米青贮真菌毒素对犊牛肠上皮细胞系细胞毒性的实时动力学分析
IF 2 4区 医学 Q2 Medicine Pub Date : 2021-05-24 DOI: 10.3920/WMJ2020.2651
Sandra Debevere, K. Demeyere, N. Reisinger, J. Faas, G. Haesaert, V. Fievez, S. Croubels, E. Meyer
In a temperate climate, the mycotoxins deoxynivalenol (DON), nivalenol (NIV), enniatin B (ENN B), mycophenolic acid (MPA), roquefortine C (ROC) and zearalenone (ZEN) are often found in maize silage. Although rumen microbiota are able to degrade some mycotoxins (e.g. DON), others are known to stay mainly intact (e.g. ROC). In addition, mycotoxin degradation can be hampered by a low ruminal pH or decrease in rumen microbial activity. Hence, these mycotoxins can reach the small intestine and exert a cytotoxic effect on intestinal epithelial cells. In this study, a real-time kinetic analysis of the cytotoxicity of these six mycotoxins and some of their metabolites (α- and β-zearalenol, α- and β-ZOL) was performed in a calf small intestinal epithelial cell line (CIEB). Confluency as well as the cell death parameters apoptosis and necrosis were determined to evaluate the mycotoxin-induced cytotoxicity. A combination of Annexin-V green and Cytotox red staining was used to determine early and late apoptosis as well as necrosis. Six different concentrations were tested ranging from 0.78 to 12.5 μM. Compared to cells not exposed to mycotoxins, DON and NIV exert a fast toxic effect with DON being more toxic than NIV within the first hours of incubation, whereas the inverse was observed at 16 h of incubation. On the other hand, MPA and ZEN induced increased Annexin V green positive cells within several hours of incubation with higher toxicity over time. Increased Annexin V green and Cytotox red positive cells were seen for ROC only at the highest concentration tested. For ENN B, increased Annexin V green positive cells were observed only after 12 h and α- and β-ZOL did not show cytotoxic effects. Hence, mycotoxin exposure causes either severe (DON and NIV) or more limited (ZEN, ROC, MPA, and ENN B) risk of bovine intestinal epithelial damage.
在温带气候条件下,玉米青贮中常见真菌毒素脱氧雪腐镰刀菌烯醇(DON)、雪腐镰刀菌烯醇(NIV)、腐镰刀菌烯醇B (ENN B)、霉酚酸(MPA)、芦quefortine C (ROC)和玉米赤霉烯酮(ZEN)。虽然瘤胃微生物群能够降解一些真菌毒素(如DON),但已知其他真菌毒素主要保持完整(如ROC)。此外,由于瘤胃pH值过低或瘤胃微生物活性降低,霉菌毒素的降解也会受到阻碍。因此,这些真菌毒素可以到达小肠并对肠上皮细胞产生细胞毒性作用。本研究在犊牛小肠上皮细胞系(CIEB)中对这6种真菌毒素及其代谢产物(α-和β-玉米赤霉烯醇,α-和β-ZOL)的细胞毒性进行了实时动力学分析。通过测定细胞凋亡和坏死参数以及细胞融合度来评价霉菌毒素诱导的细胞毒性。Annexin-V绿色和Cytotox红色联合染色检测细胞早期和晚期凋亡及坏死。测试了0.78 ~ 12.5 μM范围内的6种不同浓度。与未暴露于真菌毒素的细胞相比,DON和NIV发挥快速毒性作用,在孵育的头几个小时内DON的毒性大于NIV,而在孵育的16小时内观察到相反的情况。另一方面,MPA和ZEN在孵育数小时内诱导Annexin V绿色阳性细胞增加,并且随着时间的推移毒性更高。仅在检测的最高浓度下,ROC检测到膜联蛋白V绿色和细胞毒素红色阳性细胞的增加。对于ENN B,仅在12 h后观察到Annexin V绿色阳性细胞增加,α-和β-ZOL未表现出细胞毒性作用。因此,霉菌毒素暴露导致严重(DON和NIV)或更有限(ZEN, ROC, MPA和ENN B)的牛肠上皮损伤风险。
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引用次数: 0
Multi-mycotoxin profiling in maize reveals prevalence of Fusarium mycotoxins in South and West Ethiopia 玉米多真菌毒素分析揭示了埃塞俄比亚南部和西部镰刀菌毒素的流行
IF 2 4区 医学 Q2 Medicine Pub Date : 2021-05-24 DOI: 10.3920/WMJ2020.2645
A. Mesfin, K. Tesfamariam, T. Belachew, S. D. Saeger, C. Lachat, M. Boevre
Multi-mycotoxin exposure data are missing to guide risk assessment and legislation in Ethiopia. This study therefore aimed to determine mycotoxin contamination levels in maize samples from 176 rand...
埃塞俄比亚缺乏多种霉菌毒素暴露数据,无法指导风险评估和立法。因此,本研究旨在确定176个国家玉米样品中的霉菌毒素污染水平。
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引用次数: 4
Validation of an analytical method based on QuEChERS and LC-MS/MS to quantify nine mycotoxins in plant-based milk 基于QuEChERS和LC-MS/MS的植物奶中9种真菌毒素定量分析方法的验证
IF 2 4区 医学 Q2 Medicine Pub Date : 2021-05-24 DOI: 10.3920/WMJ2020.2656
L. Pinto, A. Santos, E. Vargas, F. Madureira, A. Faria, R. Augusti
Plant-based beverages (popularly known as vegetable milk) have become increasingly important in recent years. However, the nonexistence of information on mycotoxin contamination is noticeable. We h...
近年来,植物饮料(俗称植物奶)变得越来越重要。然而,不存在真菌毒素污染的信息是显而易见的。我们。。。
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引用次数: 2
Effect of Saccharomyces cerevisiae addition to feed contaminated with aflatoxin B1 on the health and performance indices of tambaqui (Colossoma macropomum) fingerlings 在黄曲霉毒素B1污染的饲料中添加酿酒酵母对大孔体(Colossoma macropomum)鱼种健康和性能指标的影响
IF 2 4区 医学 Q2 Medicine Pub Date : 2021-05-17 DOI: 10.3920/WMJ2020.2625
R.E.E. Pinheiro, A. Rodrigues, E. Batista, A. Monte, M. N. Ribeiro, R. Calvet, C. Pereyra, A. Torres, M. Araripe, M. Muratori
The objective of this study was to evaluate the effects of the addition of Saccharomyces cerevisiae to feed contaminated with aflatoxin B1 (AFB1) on the performance and health of tambaqui fingerlin...
本试验旨在评价在黄曲霉毒素B1 (AFB1)污染饲料中添加酿酒酵母(Saccharomyces cerevisiae)对斑鲷生产性能和健康的影响。
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引用次数: 0
期刊
World Mycotoxin Journal
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