Mycotoxin ResearchPub Date : 2025-02-01Epub Date: 2025-01-14DOI: 10.1007/s12550-024-00580-z
Maria A Angula, Anthony Ishola, Muvari Tjiurutue, Michael Sulyok, Rudolf Krska, Chibundu N Ezekiel, Jane Misihairabgwi
{"title":"Mycotoxin exposure through the consumption of processed cereal food for children (< 5 years old) from rural households of Oshana, a region of Namibia.","authors":"Maria A Angula, Anthony Ishola, Muvari Tjiurutue, Michael Sulyok, Rudolf Krska, Chibundu N Ezekiel, Jane Misihairabgwi","doi":"10.1007/s12550-024-00580-z","DOIUrl":"10.1007/s12550-024-00580-z","url":null,"abstract":"<p><p>Mycotoxin exposure from contaminated food is a significant global health issue, particularly among vulnerable children. Given limited data on mycotoxin exposure among Namibian children, this study investigated mycotoxin types and levels in foods, evaluated dietary mycotoxin exposure from processed cereal foods in children under age five from rural households in Oshana region, Namibia. Mycotoxins in cereal-based food samples (n = 162) (mahangu flour (n = 35), sorghum flour (n = 13), mahangu thin/thick porridge (n = 54), oshikundu (n = 56), and omungome (n = 4)) were determined by liquid chromatography-tandem mass spectrometry. Aflatoxin B<sub>1</sub> (AFB<sub>1</sub>, 35.8%), zearalenone (27.2%), fumonisin B<sub>1</sub> (FB<sub>1</sub>, 24.1%), citrinin (CIT, 12.4%) and deoxynivalenol (10.5%) were the major mycotoxins quantified. Food samples (35.8% (n = 58) and 6.2% (n = 10)) exceeded the 0.1 µg/kg AFB<sub>1</sub> and 200 µg/kg FB<sub>1</sub> EU limit for children's food, respectively. Several emerging mycotoxins including the neurotoxic 3-nitropropionic acid, moniliformin (MON), and tenuazonic acid were quantified in over 50% of all samples. Co-occurrence of AFB<sub>1</sub>, CIT, and FB<sub>1</sub> detected in 4.9% (n = 8) samples, which could heighten food safety concerns. Regarding exposure assessment and risk characterization, average probable dietary intake for AFB<sub>1</sub> from all ready-to-eat-foods was 0.036 µg/kg bw/day, which resulted in margin of exposures (MOE) of 11 and 0.65 risk cancer cases/year/100,000 people, indicating a risk of chronic aflatoxicosis. High tolerable daily intake values for FB<sub>1</sub>, and MOE for beauvericin and MON exceeded reference values. Consumption of a diversified diet and interventions including timely planting and harvesting, best grain storage, and other standard postharvest food handling practices are needed to mitigate mycotoxin exposure through contaminated cereal foods and to safeguard the health of the rural children in Namibia.</p>","PeriodicalId":19060,"journal":{"name":"Mycotoxin Research","volume":" ","pages":"249-265"},"PeriodicalIF":2.6,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11759469/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142979333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Ergot alkaloids: comparison of extraction efficiencies for their monitoring in several cereal-solvent combinations by UPLC-MS/MS.","authors":"Eleonora Rollo, Dante Catellani, Chiara Dall'Asta, Nicola Dreolin, Michele Suman","doi":"10.1007/s12550-024-00569-8","DOIUrl":"10.1007/s12550-024-00569-8","url":null,"abstract":"<p><p>To date, there are more than 80 ergot alkaloids identified; their distribution depends on different factors (e.g. geographic regions, host plants). These toxins can cause acute and chronic toxic effects on human health and commonly infect cereal crops such as triticale and rye, wheat, barley and oats. Considering the growing consumption of plant-based foods, the European Food Safety Authority has highlighted the need to develop risk assessment strategies. This work focused on the optimization of extraction efficiency, to quantify the main ergot alkaloids and their epimers, that are available on the market without any legal restriction (ergosine, ergocristine, ergocriptyne, ergocornine, ergosinine, ergocristinine, ergocriptinine and ergocorninine). Considering the quantification of 8 out of 12 regulated compounds by EU (sum of -ine and -inine forms), this approach can be defined as a screening method for a reliable estimation of the risk, specifically devoted to industrial stakeholders that can then possibly outsource to authorized external labs only the samples suspected of significant positivity. The effectiveness of three different extraction conditions (acidic, alkaline and neutral) followed by a rapid clean-up using dispersive solid-phase extraction with C<sub>18</sub> sorbent was evaluated by ultra-performance liquid chromatography tandem quadrupole mass spectrometry (UPLC-MS/MS), resulting in a short chromatographic run (16 min). The method was developed and validated in five different cereal production chains (rye, oat, wheat, wheat gluten and baby food). The applicability of the method was examined by analyzing a set of 54 samples, including also other cereals like spelt, tritordeum and triticale, and evaluating also some reference materials.</p>","PeriodicalId":19060,"journal":{"name":"Mycotoxin Research","volume":" ","pages":"127-146"},"PeriodicalIF":2.6,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142624748","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mycotoxin ResearchPub Date : 2025-02-01Epub Date: 2024-12-12DOI: 10.1007/s12550-024-00576-9
Kizito Nishimwe, Erin Bowers, Dirk E Maier
{"title":"On-farm evaluation of aflatoxin binder inclusion in dairy feed as a strategy to reduce milk aflatoxin M1 contamination in the Rwandan context.","authors":"Kizito Nishimwe, Erin Bowers, Dirk E Maier","doi":"10.1007/s12550-024-00576-9","DOIUrl":"10.1007/s12550-024-00576-9","url":null,"abstract":"<p><p>Aflatoxins (AF), fungal metabolites, can contaminate feed in favorable environments, posing health risks to humans and animals. Dairy cows exposed to aflatoxin B1 (AFB1) excrete its metabolite, aflatoxin M1 (AFM1), in milk, compromising its safety. The current study examined the use of an AF binder in dairy feed concentrates on farms in Rwanda to mitigate AFM1 in milk. It was conducted in Nyagatare district, peri-urban areas of Kigali (Center), and Huye district (South) with 42 farmers randomly selected from a previous study evenly divided into control and intervention groups. The intervention group received an AF binder (Novasil™ Plus) and training on both the usage of the binder and AF prevention in dairy feed. Sociodemographic and dairy management data were collected through semi-structured questionnaires. Farmers in both the treatment and control groups were visited at regular intervals over a 3-month time period (five total visits per farmer) to collect samples of milk and feed for the quantification of AFM1 and AFB1, respectively, and to interview participants. The use of the AF binder evidenced a significant reduction in milk AFM1 contamination between the intervention (mean, 0.15 µg/l; median, 0.13 µg/l) and control groups (mean, 0.30 µg/l; median, 0.24 µg/l) (p < 0.05). AFB1 was detected in the feed concentrate at a mean concentration of 32.2 µg/kg (median, 36.2 µg/kg); however, mean AFM1 levels in both groups (i.e., control and intervention) did not exceed the Rwanda Standards Board (RSB) regulatory limit of 0.5 µg/kg AFM1. AF binders show potential as a low-cost strategy to reduce AFM1 contamination in the Rwandan context. However, there is a need for clear standards on the registration and use of binders before they are deployed in-country and to claim their mitigating effects on AFM1 in milk.</p>","PeriodicalId":19060,"journal":{"name":"Mycotoxin Research","volume":" ","pages":"207-214"},"PeriodicalIF":2.6,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142813712","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mycotoxin ResearchPub Date : 2025-02-01Epub Date: 2024-10-17DOI: 10.1007/s12550-024-00554-1
Shuichu Hao, Cong Yao, Peilin Meng, Yumen Jia, Liu Li, Chun Zhang
{"title":"The spinal consequences of HT-2 toxin and selenium deficiency during bone maturation in mice.","authors":"Shuichu Hao, Cong Yao, Peilin Meng, Yumen Jia, Liu Li, Chun Zhang","doi":"10.1007/s12550-024-00554-1","DOIUrl":"10.1007/s12550-024-00554-1","url":null,"abstract":"<p><p>In our investigation, we probed the ramifications of low selenium diets and HT-2 mycotoxin exposure on spinal development and structural fidelity in murine models. A cohort of 48 male mice was segregated into six groups: a control set, a singular low selenium diet group, two cohorts exposed to distinct concentrations of HT-2 toxin (1.6 and 3.2 mg/kg·bw·d), and two assemblies subjected to a confluence of low selenium intake and each designated HT-2 dosage. Across an 8-week investigative period, parameters such as body mass, markers of bone metabolism, and cellular vigor were assiduously monitored. Analytical techniques encompassed biomechanical assessments, X-ray scrutiny, and micro-computed tomography (micro-CT) evaluations. Our results unveiled a dose-dependent diminution in the body mass of mice exclusively exposed to HT-2 toxin, whereas concurrent exposure to both low selenium and HT-2 toxins elicited a synergistic effect. Pertinent shifts were observed in calcium, phosphorus, and vitamin D concentrations, as well as in the operational dynamics of osteoblasts and osteoclasts, aligning with toxin dosage and combined exposure. Variations in biomechanical attributes were also discerned, mirroring the levels of toxin exposure. Micro-CT and X-ray examinations further corroborated the extensive detrimental impact on the cortical and trabecular architecture of the mice's spinal columns. This inquiry elucidates the complex synergistic interactions between low selenium and HT-2 mycotoxin on murine spinal development and integrity under co-exposure conditions. These findings accentuate the exigency of comprehensively understanding the solitary and joint effects of these toxins on osseous health, providing pivotal insights for future toxicological research and public health strategies.</p>","PeriodicalId":19060,"journal":{"name":"Mycotoxin Research","volume":" ","pages":"77-91"},"PeriodicalIF":2.6,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142470721","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mycotoxin ResearchPub Date : 2025-02-01Epub Date: 2024-10-12DOI: 10.1007/s12550-024-00564-z
A Grümpel-Schlüter, S Kersten, J Kluess, S Lühken, J Saltzmann, A Schubbert, S Büngener-Schröder, S Dänicke
{"title":"Effect of zearalenone in sugar beet products on zootechnical and reproductive performance and lesions of sows and piglets.","authors":"A Grümpel-Schlüter, S Kersten, J Kluess, S Lühken, J Saltzmann, A Schubbert, S Büngener-Schröder, S Dänicke","doi":"10.1007/s12550-024-00564-z","DOIUrl":"10.1007/s12550-024-00564-z","url":null,"abstract":"<p><p>Following the use of sugar beet pulp that was retrospectively found to be predominantly contaminated with zearalenone (ZEN) in diets of reproducing sows largely exceeding the EU-guidance value for critical ZEN concentration of 0.25 mg/kg, farmers did not report any changes in the reproductive performance of sows. Thus, the aim of the study was to verify this guidance value in a dose-response setup by using sugar beet pulp as a ZEN source hitherto not considered a risky feedstuff additionally characterized by comparatively low levels of deoxynivalenol. A total of 90 sows was equally allocated to one of the three feed groups during experimental lactation 1 and up to 40 days after insemination: CON with a minimal ZEN concentration, ZEN1 with a target concentration of 250 µg ZEN/kg feed, and ZEN2 with a target concentration of 500 µg ZEN/kg feed. Thereafter, all sows received the same feed without ZEN for the rest of gestation, and the following lactation for testing of putative carry-over effects resulting from previous ZEN exposure. Exposure of sows to ZEN with blood serum as an indicator was linearly related to dietary ZEN concentrations. Reproductive and zootechnical performances of sows were only affected by ZEN exposure at weaning weight. Clinical-chemical parameters indicated no clear effect of ZEN exposure. An influence of ZEN on the occurrence of tail and ear injuries (not necrosis) in piglets and lesions on the mammary complexes in sows is possible. The influence of a ZEN concentration above the EU guidance value on the study farm can therefore not be neglected.</p>","PeriodicalId":19060,"journal":{"name":"Mycotoxin Research","volume":" ","pages":"47-61"},"PeriodicalIF":2.6,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11757929/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142406631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Identification and characterization of Morganella morganii strain YC12-C3 and Enterococcus faecalis strain YC12-C10 and elucidation of its deoxynivalenol-degrading potential.","authors":"Jiuchun An, Yefei Chen, Shihua Zhou, Yanping Gao, Changgui Yang, Jinqiang Zhang, Xiaohong Ou, Yanhong Wang, Weike Jiang, Tao Zhou, Qing-Song Yuan","doi":"10.1007/s12550-024-00568-9","DOIUrl":"10.1007/s12550-024-00568-9","url":null,"abstract":"<p><p>Deoxynivalenol ( DON) is one of the most harmful mycotoxins in food or feed or Traditional Chinese Medicine. An efficient and applicable method for the detoxification of DON is urgently developed. 1152 strains were isolated from the intestinal contents of crucian. Morganella morganii YC12-C3 and Enterococcus faecalis YC12-C10 were screened with the highest degradation rate of DON via HPLC methods. The optimal degradation condition of YC12-C3 and YC12-C10 is co-cultured 24 h and 36 h at 28 ℃ in LB medium with pH 7 and 1.0% inoculation dosage, respectively. LC-MS/MS and <sup>1</sup>H NMR results show that YC12-C10 and YC12-C3 can transform DON to 3-deoxy-6-demethanol-DON, a new metabolite biotransformed from DON, by deoxidization at C3 hydroxy and de-methanal reaction at methanol moiety of C6. In addition, the DON-degradation in agricultural material assay showed that YC12-C10 and YC12-C3 can degrade 150 μg·kg<sup>-1</sup> DON in Coix lacryma-jobi, with a degradation rate of 68.89% and 59.94%, respectively. This result shows that YC12-C10 and YC12-C3 have a sound efficiency in removing DON ability in Coix lacryma-jobi, providing a new strain resource and application technique for biological detoxification of DON in food or feed or TCM industry.</p>","PeriodicalId":19060,"journal":{"name":"Mycotoxin Research","volume":" ","pages":"113-126"},"PeriodicalIF":2.6,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142504675","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mycotoxin ResearchPub Date : 2025-02-01Epub Date: 2024-10-03DOI: 10.1007/s12550-024-00565-y
Necdet Mutlu, Güler Yenice
{"title":"The relationship between aflatoxin M1 and immunoglobulin levels in cows' colostrum.","authors":"Necdet Mutlu, Güler Yenice","doi":"10.1007/s12550-024-00565-y","DOIUrl":"10.1007/s12550-024-00565-y","url":null,"abstract":"<p><p>The purpose of the present research was to assess the amounts of aflatoxin M1 (AFM<sub>1</sub>) and immunoglobulin (IgA, IgG, and IgM) in cow colostrum samples, as well as their relationship. The sampling involved 90 cows (54 Montofon and 36 Simmental) from 15 independent farms. An appropriate number of samples from the total mixed ration (TMR) used in feeding the cows were collected simultaneously with the colostrum samples. AFB<sub>1</sub> in feed, AFM<sub>1</sub>, and immunoglobulin (IgA, IgG, and IgM) levels in colostrum were evaluated using the ELISA method. The AFM<sub>1</sub> level in colostrum samples exceeded the maximum allowed values for raw milk. Ig levels were higher in Montofon-breed cows' colostrum than in Simmentals. However, it was determined that neither the breed nor the lactation number significantly affected the colostrum Ig level. It was determined that there was no linear relationship between the number of lactations and immunoglobulin levels or between AFM<sub>1</sub> and immunoglobulin levels in colostrum. Similarly, it was determined that there was no linear relationship between the AFB<sub>1</sub> level in the feed and the AFM<sub>1</sub> level in the colostrum of animals consuming these feeds.</p>","PeriodicalId":19060,"journal":{"name":"Mycotoxin Research","volume":" ","pages":"15-23"},"PeriodicalIF":2.6,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142365886","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mycotoxin ResearchPub Date : 2025-02-01Epub Date: 2024-12-30DOI: 10.1007/s12550-024-00579-6
Marek Pernica, Jan Martiník, Rastislav Boško, Simona Černá, Zdeněk Svoboda, Karolína Benešová, Sylvie Běláková
{"title":"Mycotoxins in brewing and malting: is every sample contaminated with mycotoxins?","authors":"Marek Pernica, Jan Martiník, Rastislav Boško, Simona Černá, Zdeněk Svoboda, Karolína Benešová, Sylvie Běláková","doi":"10.1007/s12550-024-00579-6","DOIUrl":"10.1007/s12550-024-00579-6","url":null,"abstract":"<p><p>Mycotoxins are secondary metabolites of fungi and represent a serious problem for human health. Due to growing interest, various aspects have been widely studied by scientific groups. One of these aspects relates to the food industry and associated beer production. Mycotoxins can be present in the basic raw materials for beer production as well as in brewed beer. Problematic mycotoxins that pose a serious risk of toxicity are aflatoxins especially aflatoxin B<sub>1</sub> (AFB<sub>1</sub>), fumonisins (FBs), and zearalenone (ZEN) and its metabolites, deoxynivalenol (DON) including its acetylated forms and also the modified form deoxynivalenol-3-glucoside (DON-3G), T-2 toxin, HT-2 toxin, and ochratoxin A. The Research Institute of Brewing and Malting has been dealing with the issue of mycotoxins since 2008. This study describes the analysis of the above mycotoxins during 2020-2024 in barley (n = 775), malt (n = 751), and commercially available beers (n = 522) using QuEChERS, immunoaffinity columns, and UPLC-MS/MS. The results showed positive samples of mycotoxins in brewing and malting matrices at the level of micrograms per kilogram (barley, malt) and nanograms per liter for beer. Therefore, it is a residual concentration and the accurate quantitative determination of mycotoxins, correct interpretation of the results in connection with toxicological values, and the maximum permissible levels of mycotoxins play a key role in global food safety and consumer protection.</p>","PeriodicalId":19060,"journal":{"name":"Mycotoxin Research","volume":" ","pages":"239-248"},"PeriodicalIF":2.6,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142910072","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mycotoxin ResearchPub Date : 2025-02-01Epub Date: 2024-11-12DOI: 10.1007/s12550-024-00572-z
Agnieszka Zapaśnik, Marcin Bryła, Barbara Sokołowska, Agnieszka Waśkiewicz
{"title":"Pleurotus spp.-an effective way in degradation mycotoxins? A comprehensive review.","authors":"Agnieszka Zapaśnik, Marcin Bryła, Barbara Sokołowska, Agnieszka Waśkiewicz","doi":"10.1007/s12550-024-00572-z","DOIUrl":"10.1007/s12550-024-00572-z","url":null,"abstract":"<p><p>Mycotoxins-secondary metabolites produced by filamentous fungal species-occur as a global problem in agriculture due to the reduction in crop quality and the negative effects on human and animal health. There is a need to develop environment-friendly methods of detoxification. In recent years, a number of biological methods for the removal/degradation of mycotoxins have been described. One of them-particularly interesting due to its high effectiveness-is mycoremediation, which involves the ability of Pleurotus spp. mushrooms to remove toxic contaminants from the environment and food. Pleurotus spp. biosynthesizes ligninolytic enzymes, such as laccase and manganese peroxidase that are the main factors of enzymatic degradation of various pollutants, including mycotoxins. The degradation process of mycotoxins (especially aflatoxins) with the participation of isolated enzymes reaches approximately 30-100%, depending on the culture conditions, substrate, and mediators used. In the food industry, their application may include, among others, the detoxification of animal feed from mycotoxins or fermentation products (e.g., juices and wines). While these applications are promising, they require further research to expand toxicological knowledge and optimize their use. This review presents current research on this new and very promising topic related to the use of edible Pleurotus spp. mushrooms in the process of biological degradation of toxic fungal metabolites.</p>","PeriodicalId":19060,"journal":{"name":"Mycotoxin Research","volume":" ","pages":"1-13"},"PeriodicalIF":2.6,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11759470/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142624749","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mycotoxin ResearchPub Date : 2025-02-01Epub Date: 2024-11-27DOI: 10.1007/s12550-024-00575-w
Erasmus N Tang, Sali A Ndindeng, Geoffrey Onaga, Alejandro Ortega-Beltran, Titilayo D O Falade, Rousseau Djouaka, Michael Frei
{"title":"Mycotoxin concentrations in rice are affected by chalkiness, grain shape, processing type, and grain origin.","authors":"Erasmus N Tang, Sali A Ndindeng, Geoffrey Onaga, Alejandro Ortega-Beltran, Titilayo D O Falade, Rousseau Djouaka, Michael Frei","doi":"10.1007/s12550-024-00575-w","DOIUrl":"10.1007/s12550-024-00575-w","url":null,"abstract":"<p><p>Mycotoxins such as aflatoxins (AFs), fumonisins (FBs), zearalenone (ZEN), and deoxynivalenol (DON) pose a risk to public health due to their carcinogenic potency (AFs and FBs) and anti-nutritional effects. The hazards associated with mycotoxins are accentuated where food management practices, control, and regulatory systems from farm to plate are sub-optimal. Information on the frequency of these mycotoxins in rice commercialized in markets in sub-Sahara Africa (SSA) is limited. The current study examined AF concentrations in 527 rice samples collected from 54 markets in five SSA countries. Grain quality characteristics, processing methods, and origin of samples were contrasted with toxin levels. In total, 72% of the samples had detectable AFs levels (range = 3.0 to 89.8 µg/kg). Forty-seven percent (47%) of the samples had AFs above 4 µg/kg, the European Union maximum level (ML), and were evaluated for cooccurrence with FBs, ZEN, and DON. Total AFs and ZEN cooccurred in 40% of the samples, and 30% of the positive ZEN samples had concentrations above the ML of 75 µg/kg. Total AFs did not co-occur with FBs and DON. Multivariate analysis revealed that length-to-width ratio (p < 0.0001), mixed variety for width (p = 0.04), and chalkiness (p = 0.009) significantly influenced aflatoxin concentrations. Slender grains had higher AFs concentrations than bold and medium grains (p < 0.0001). Possible strategies to mitigate mycotoxin contamination in rice include improving grain quality traits and practicing proper drying and hermetic storage before and after milling. These findings provide valuable insights for both domestic and international actors in establishing and strengthening regulations and management systems to mitigate rice mycotoxin contamination.</p>","PeriodicalId":19060,"journal":{"name":"Mycotoxin Research","volume":" ","pages":"163-177"},"PeriodicalIF":2.6,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11757643/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142730995","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}