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Tian Y, Tian X, Yang B, Ma J, Shan J, Xing F. Analysis of the impact of drying on common wheat quality and safety. Heliyon 2024; 10:e33163. [PMID: 39021959 PMCID: PMC11253061 DOI: 10.1016/j.heliyon.2024.e33163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2024] [Revised: 06/14/2024] [Accepted: 06/14/2024] [Indexed: 07/20/2024] Open
Abstract
Mycotoxin contamination in grain has been an ongoing concern in the world. Wheat, as a staple crop in China, is particularly notable for its mycotoxin contamination. The main mycotoxins in wheat include deoxynivalenol (DON) and its derivates, zearalenone (ZEN) and aflatoxin B1 (AFB1). After harvest, drying process is an effective technique and a necessary step to ensure the long-term safe storage of wheat. In this study, the moisture content, the concentrations of total fungi and main mycotoxins in post-harvest wheat of three wheat growing areas in the North China Plain were examined, and the effect of different drying methods on wheat quality was evaluated. The results showed that 87.5% of wheat samples were simultaneously contaminated with two or more mycotoxins. Due to the pre-harvest heavy rainfall, the moisture content, the levels of total fungi and mycotoxins in wheat samples of Liaocheng city were significantly higher compared to other regions. Moreover, the effects of different drying methods on the starch gelatinization and viscosity properties of wheat were investigated. The results showed that both natural air drying and dryer drying altered the crystal structure within starch particles and affected the gelatinization and viscosity properties of wheat starch. However, there is no significant difference between the wheat samples treated with two drying methods.
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Affiliation(s)
| | | | - Bolei Yang
- Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs / Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Junning Ma
- Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs / Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Jihao Shan
- Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs / Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Fuguo Xing
- Key Laboratory of Agro-products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs / Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
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2
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Carbas B, Barros S, Freitas A, Silva AS, Brites C. Comparative Analysis of Maize Physico-Chemical Parameters and Mycotoxin Levels in Dual Environments. Toxins (Basel) 2024; 16:275. [PMID: 38922169 PMCID: PMC11209266 DOI: 10.3390/toxins16060275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Revised: 06/13/2024] [Accepted: 06/14/2024] [Indexed: 06/27/2024] Open
Abstract
Maize (Zea mays L.) stands as a vital staple food globally, holding significant nutritional and economic value. However, its susceptibility to mycotoxin contamination under stressful environmental conditions poses a considerable concern. This study aimed to assess the quality and pasting characteristics of maize varieties across two distinct regions and examine the occurrence of mycotoxins influenced by climatic factors. Five maize varieties were cultivated in triplicate in the Golegã and Coruche regions. The nutritional composition (protein, fat, fiber, ash, starch, and lutein), pasting properties, and mycotoxin levels were evaluated. A statistical analysis revealed notable differences in the nutritional profiles of the maize varieties between the two regions, particularly in the protein and lutein content. The peak viscosity ranged from 6430 to 8599 cP and from 4548 to 8178 cP in the maize varieties from the Coruche and Golegã regions, respectively. Additionally, a significant correlation was observed between the climatic conditions and the grain nutritional quality components (p < 0.05). The M variety showed the highest ash content, protein content, final viscosity, and setback viscosity and the lowest peak viscosity. The Y variety revealed the lowest fat, fiber, and lutein content and the maximum peak viscosity. The incidence of mycotoxins was notably higher in the varieties from Coruche, which was potentially attributable to higher temperatures and lower precipitation levels leading to more frequent drought conditions. Fumonisin B1 was detected in 58% of the varieties from Coruche and 33% of the samples from Golegã, while deoxynivalenol was found in 87% and 80% of the varieties from Coruche and Golegã, respectively. The H variety, which was harvested in Coruche, exhibited the highest number of fumonisins and higher amounts of protein, lutein, and fat, while fumonisins were not detected in the Golegã region, which was potentially influenced by the precipitation levels. The K variety revealed higher protein and lutein contents, a lower amount of fat, excellent pasting properties (a higher peak viscosity and holding strength and a lower peak time), and no fumonisins B1 or B2. This variety may be considered well adapted to higher temperatures and drier conditions, as verified in the Coruche region. In conclusion, our study underscored the profound impact of environmental factors on the quality and occurrence of mycotoxins in maize varieties.
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Affiliation(s)
- Bruna Carbas
- National Institute for Agricultural and Veterinary Research (INIAV), I.P., Av. Da República, Quinta do Marquês, 2780-157 Oeiras, Portugal; (B.C.); (S.B.); (A.F.); (A.S.S.)
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Sílvia Barros
- National Institute for Agricultural and Veterinary Research (INIAV), I.P., Av. Da República, Quinta do Marquês, 2780-157 Oeiras, Portugal; (B.C.); (S.B.); (A.F.); (A.S.S.)
| | - Andreia Freitas
- National Institute for Agricultural and Veterinary Research (INIAV), I.P., Av. Da República, Quinta do Marquês, 2780-157 Oeiras, Portugal; (B.C.); (S.B.); (A.F.); (A.S.S.)
| | - Ana Sanches Silva
- National Institute for Agricultural and Veterinary Research (INIAV), I.P., Av. Da República, Quinta do Marquês, 2780-157 Oeiras, Portugal; (B.C.); (S.B.); (A.F.); (A.S.S.)
- Faculty of Pharmacy, Coimbra, Azinhaga de Santa Comba, University of Coimbra, 3000-548 Coimbra, Portugal
- Centre for Animal Science Studies (CECA), University of Porto, 4050-453 Porto, Portugal
| | - Carla Brites
- National Institute for Agricultural and Veterinary Research (INIAV), I.P., Av. Da República, Quinta do Marquês, 2780-157 Oeiras, Portugal; (B.C.); (S.B.); (A.F.); (A.S.S.)
- GREEN-IT Bioresources for Sustainability, ITQB NOVA, Av. da República, 2780-157 Oeiras, Portugal
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3
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Woo SY, Lee SY, Park SB, Chun HS. Simultaneous determination of 17 regulated and non-regulated Fusarium mycotoxins co-occurring in foodstuffs by UPLC-MS/MS with solid-phase extraction. Food Chem 2024; 438:137624. [PMID: 38011795 DOI: 10.1016/j.foodchem.2023.137624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Revised: 09/25/2023] [Accepted: 09/27/2023] [Indexed: 11/29/2023]
Abstract
Fusarium species produce numerous mycotoxins known to co-occur in food. While some of these mycotoxins (e.g., deoxynivalenol, fumonisins) are regulated in several countries, others are non-regulated (e.g., nivalenol, beauvericin). In this study, UPLC-MS/MS with solid-phase extraction cleanup was used to determine 17 Fusarium mycotoxins (FTs) simultaneously. The method showed excellent performance in terms of linearity (R2 > 0.99), LOD (<1.2 μg/kg), LOQ (<3.6 μg/kg), accuracy (70.0-116.3 %), repeatability (<15.7 %), reproducibility (<25.3 %), and expanded uncertainty (<41.7 %). The validated method was successfully applied to 198 marketed food samples collected in South Korea. Of the tested samples, 79 % were contaminated with at least one FT. Job's tears showed the highest prevalence of 14 FTs, and sorghum had the highest total FTs level (3.03 mg/kg). The results suggest that this method can be used for the simultaneous analysis of 17 FTs in food samples, which would serve as crucial information for risk management.
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Affiliation(s)
- So Young Woo
- School of Food Science and Technology, Chung-Ang University, Anseong 17546, Republic of Korea
| | - Sang Yoo Lee
- School of Food Science and Technology, Chung-Ang University, Anseong 17546, Republic of Korea
| | - Su Been Park
- School of Food Science and Technology, Chung-Ang University, Anseong 17546, Republic of Korea
| | - Hyang Sook Chun
- School of Food Science and Technology, Chung-Ang University, Anseong 17546, Republic of Korea.
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4
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Topi D, Babič J, Jakovac-Strajn B, Tavčar-Kalcher G. Incidence of Aflatoxins and Ochratoxin A in Wheat and Corn from Albania. Toxins (Basel) 2023; 15:567. [PMID: 37755993 PMCID: PMC10537406 DOI: 10.3390/toxins15090567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 09/02/2023] [Accepted: 09/07/2023] [Indexed: 09/28/2023] Open
Abstract
In this study, aflatoxins (AFs) and ochratoxin A (OTA) were analyzed in grains, specifically wheat and corn, from Albania. To summarize, 71 wheat and 45 corn samples from different growing areas were collected. The multi-toxin analytical procedure involved sample extraction and liquid chromatography-tandem mass spectrometry (LC-MS/MS). The incidence of AF was 18% in the analyzed wheat and 71% in the corn samples. The concentration of AFs was much higher in the corn samples than in the wheat samples. The maximum permitted levels for aflatoxin B1 (AFB1) and total AFs were not exceeded in the wheat samples, while they were exceeded in 36% of the corn samples. In the wheat samples, the AFB1 concentration varied between 0.2 and 0.4 µg kg-1. However, the highest concentrations in the corn samples were 2057, 2944, and 3550 µg kg-1. OTA was present in only three corn samples and one wheat sample. However, all contaminated samples exceeded the maximum permitted levels. This report reveals the presence of AFs and OTA in grain commodities, specifically wheat and corn, grown in Albania.
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Affiliation(s)
- Dritan Topi
- Veterinary Faculty, Institute of Food Safety, Feed and Environment, University of Ljubljana, Gerbičeva 60, 1000 Ljubljana, Slovenia; (J.B.); (B.J.-S.); (G.T.-K.)
- Department of Chemistry, Faculty of Natural Sciences, University of Tirana, Boulevard Zogu 1, 25/1, 1000 Tirana, Albania
| | - Janja Babič
- Veterinary Faculty, Institute of Food Safety, Feed and Environment, University of Ljubljana, Gerbičeva 60, 1000 Ljubljana, Slovenia; (J.B.); (B.J.-S.); (G.T.-K.)
| | - Breda Jakovac-Strajn
- Veterinary Faculty, Institute of Food Safety, Feed and Environment, University of Ljubljana, Gerbičeva 60, 1000 Ljubljana, Slovenia; (J.B.); (B.J.-S.); (G.T.-K.)
| | - Gabrijela Tavčar-Kalcher
- Veterinary Faculty, Institute of Food Safety, Feed and Environment, University of Ljubljana, Gerbičeva 60, 1000 Ljubljana, Slovenia; (J.B.); (B.J.-S.); (G.T.-K.)
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5
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Li Y, Gao H, Wang R, Xu Q. Deoxynivalenol in food and feed: Recent advances in decontamination strategies. Front Microbiol 2023; 14:1141378. [PMID: 36998392 PMCID: PMC10043330 DOI: 10.3389/fmicb.2023.1141378] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 02/17/2023] [Indexed: 03/16/2023] Open
Abstract
Deoxynivalenol (DON) is a mycotoxin that contaminates animal feed and crops around the world. DON not only causes significant economic losses, but can also lead diarrhea, vomiting, and gastroenteritis in humans and farm animals. Thus, there is an urgent need to find efficient approaches for DON decontamination in feed and food. However, physical and chemical treatment of DON may affect the nutrients, safety, and palatability of food. By contrast, biological detoxification methods based on microbial strains or enzymes have the advantages of high specificity, efficiency, and no secondary pollution. In this review, we comprehensively summarize the recently developed strategies for DON detoxification and classify their mechanisms. In addition, we identify remaining challenges in DON biodegradation and suggest research directions to address them. In the future, an in-depth understanding of the specific mechanisms through which DON is detoxified will provide an efficient, safe, and economical means for the removal of toxins from food and feed.
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Li F, Zhao X, Jiao Y, Duan X, Yu L, Zheng F, Wang X, Wang L, Wang JS, Zhao X, Zhang T, Li W, Zhou J. Exposure assessment of aflatoxins and zearalenone in edible vegetable oils in Shandong, China: health risks posed by mycotoxin immunotoxicity and reproductive toxicity in children. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:3743-3758. [PMID: 35953745 DOI: 10.1007/s11356-022-22385-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 07/31/2022] [Indexed: 06/15/2023]
Abstract
Human exposure to aflatoxins (AFs) and zearalenone (ZEA) has not been sufficiently investigated. Here, we analyzed the exposure level and health risks posed by AFs (B1, B2, G1, G2) and ZEA through cooking oil consumption in Shandong, China. The individual daily consumption of cooking oil was calculated through 2745 questionnaires during 2017-2019. The average contamination levels of mycotoxins were estimated by examining 60 cooking oil samples. For the peanut oil, AFs ranged from <0.2 to 274 μg/kg, with a positive rate of 66.6% (20/30). Average levels of 36.62 μg/kg AFB1 and 44.43 μg/kg total AFs were found. Over-the-limit level (20 μg/kg) of AFB1 was detected in 8/30 samples. Estimated daily intake (EDI) and margin of exposure (MOE) for age-stratified population groups showed that children are facing highest adverse health risk with AFB1 (MOE 5.88-6.39). The liver cancer incidences attributable to AFB1 exposure are non-negligible as 0.896, 0.825, and 0.767 cases per 100,000 for 6-14 age group, 15-17 age group, and adult labor-intensive workers. Over-the-limit level (60 μg/kg) ZEA contamination was detected in 25/30 corn oil samples with a 50th percentile value of 97.95 μg/kg. Our health risk assessment suggested significant health risks of enterohepatic (inflammation and cancer), reproductive, and endocrine systems posed by AFs and ZEA. However, the health risk of immunotoxicity is unclear because currently animal study data are not available for the immunotoxicity induced after long-term exposure. In general, the health risks posed by mycotoxins are non-negligible and long-term mycotoxin surveillance is necessary.
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Affiliation(s)
- Fenghua Li
- Shandong Center for Food Safety Risk Assessment, Shandong Center for Disease Control and Prevention, and Academy of Preventive Medicine, Shandong University, Jinan, 250014, China
| | - Xianqi Zhao
- School of Public Health, Cheeloo College of Medicine, Shandong University, Room 9307, Wenhuaxi Road 44, Lixia District, Jinan, 250012, China
| | - Yanni Jiao
- Shandong Center for Food Safety Risk Assessment, Shandong Center for Disease Control and Prevention, and Academy of Preventive Medicine, Shandong University, Jinan, 250014, China
| | - Xinglan Duan
- School of Public Health, Cheeloo College of Medicine, Shandong University, Room 9307, Wenhuaxi Road 44, Lixia District, Jinan, 250012, China
| | - Lianlong Yu
- Shandong Center for Food Safety Risk Assessment, Shandong Center for Disease Control and Prevention, and Academy of Preventive Medicine, Shandong University, Jinan, 250014, China
| | - Fengjia Zheng
- Shandong Center for Food Safety Risk Assessment, Shandong Center for Disease Control and Prevention, and Academy of Preventive Medicine, Shandong University, Jinan, 250014, China
| | - Xiaolin Wang
- Shandong Center for Food Safety Risk Assessment, Shandong Center for Disease Control and Prevention, and Academy of Preventive Medicine, Shandong University, Jinan, 250014, China
| | - Lin Wang
- Shandong Center for Food Safety Risk Assessment, Shandong Center for Disease Control and Prevention, and Academy of Preventive Medicine, Shandong University, Jinan, 250014, China
| | - Jia-Sheng Wang
- Interdisciplinary Toxicology Program and Department of Environmental Health Science, College of Public Health, University of Georgia, Athens, GA, 30602, USA
| | - Xiulan Zhao
- Department of Toxicology and Nutrition, School of Public Health, Shandong University, Jinan, 250012, China
| | - Tianliang Zhang
- Shandong Center for Food Safety Risk Assessment, Shandong Center for Disease Control and Prevention, and Academy of Preventive Medicine, Shandong University, Jinan, 250014, China
| | - Wei Li
- Shandong Center for Food Safety Risk Assessment, Shandong Center for Disease Control and Prevention, and Academy of Preventive Medicine, Shandong University, Jinan, 250014, China
| | - Jun Zhou
- School of Public Health, Cheeloo College of Medicine, Shandong University, Room 9307, Wenhuaxi Road 44, Lixia District, Jinan, 250012, China.
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Akohoue F, Koch S, Plieske J, Miedaner T. Separation of the effects of two reduced height (Rht) genes and genomic background to select for less Fusarium head blight of short-strawed winter wheat (Triticum aestivum L.) varieties. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2022; 135:4303-4326. [PMID: 36152062 PMCID: PMC9734223 DOI: 10.1007/s00122-022-04219-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 09/08/2022] [Indexed: 06/16/2023]
Abstract
FHB resistance shared pleiotropic loci with plant height and anther retention. Genomic prediction allows to select for genomic background reducing FHB susceptibility in the presence of the dwarfing allele Rht-D1b. With the high interest for semi-dwarf cultivars in wheat, finding locally adapted resistance sources against Fusarium head blight (FHB) and FHB-neutral reduced height (Rht) genes is of utmost relevance. In this study, 401 genotypes of European origin without/with dwarfing alleles of Rht-D1 and/or Rht24 were analysed across five environments on FHB severity and the morphological traits such as plant height (PH), anther retention (AR), number of spikelets per ear, ear length and ear density. Data were analysed by combined correlation and path analyses, association mapping and coupling single- and multi-trait genome-wide association studies (ST-GWAS and MT-GWAS, respectively) and genomic prediction (GP). All FHB data were corrected for flowering date or heading stage. High genotypic correlation (rg = 0.74) and direct path effect (0.57) were detected between FHB severity and anther retention (AR). Moderate correlation (rg = - 0.55) was found between FHB severity and plant height (PH) with a high indirect path via AR (- 0.31). Indirect selection for FHB resistance should concentrate on AR and PH. ST-GWAS identified 25 quantitative trait loci (QTL) for FHB severity, PH and AR, while MT-GWAS detected six QTL across chromosomes 2A, 4D, 5A, 6B and 7B conveying pleiotropic effects on the traits. Rht-D1b was associated with high AR and FHB susceptibility. Our study identified a promising positively acting pleiotropic QTL on chromosome 7B which can be utilized to improve FHB resistance while reducing PH and AR. Rht-D1b genotypes having a high resistance genomic background exhibited lower FHB severity and AR. The use of GP for estimating the genomic background was more effective than selection of GWAS-detected markers. We demonstrated that GP has a great potential and should be exploited by selecting for semi-dwarf winter wheat genotypes with higher FHB resistance due to their genomic background.
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Affiliation(s)
- Félicien Akohoue
- State Plant Breeding Institute, University of Hohenheim, Stuttgart, Germany
| | - Silvia Koch
- State Plant Breeding Institute, University of Hohenheim, Stuttgart, Germany
| | - Jörg Plieske
- SGS INSTITUT FRESENIUS GmbH, TraitGenetics Section, Am Schwabeplan 1b, 06466, Seeland OT Gatersleben, Germany
| | - Thomas Miedaner
- State Plant Breeding Institute, University of Hohenheim, Stuttgart, Germany.
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Bryła M, Pierzgalski A, Zapaśnik A, Uwineza PA, Ksieniewicz-Woźniak E, Modrzewska M, Waśkiewicz A. Recent Research on Fusarium Mycotoxins in Maize—A Review. Foods 2022; 11:foods11213465. [PMID: 36360078 PMCID: PMC9659149 DOI: 10.3390/foods11213465] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 10/27/2022] [Accepted: 10/28/2022] [Indexed: 11/06/2022] Open
Abstract
Maize (Zea mays L.) is one of the most susceptible crops to pathogenic fungal infections, and in particular to the Fusarium species. Secondary metabolites of Fusarium spp.—mycotoxins are not only phytotoxic, but also harmful to humans and animals. They can cause acute or chronic diseases with various toxic effects. The European Union member states apply standards and legal regulations on the permissible levels of mycotoxins in food and feed. This review summarises the most recent knowledge on the occurrence of toxic secondary metabolites of Fusarium in maize, taking into account modified forms of mycotoxins, the progress in research related to the health effects of consuming food or feed contaminated with mycotoxins, and also the development of biological methods for limiting and/or eliminating the presence of the same in the food chain and in compound feed.
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Affiliation(s)
- Marcin Bryła
- Department of Food Safety and Chemical Analysis, Waclaw Dabrowski Institute of Agricultural and Food Biotechnology—State Research Institute, 02-532 Warsaw, Poland
| | - Adam Pierzgalski
- Department of Food Safety and Chemical Analysis, Waclaw Dabrowski Institute of Agricultural and Food Biotechnology—State Research Institute, 02-532 Warsaw, Poland
| | - Agnieszka Zapaśnik
- Department of Microbiology, Waclaw Dabrowski Institute of Agricultural and Food Biotechnology—State Research Institute, Rakowiecka 36, 02-532 Warsaw, Poland
| | - Pascaline Aimee Uwineza
- Department of Chemistry, Poznań University of Life Sciences, Wojska Polskiego 75, 60-625 Poznań, Poland
| | - Edyta Ksieniewicz-Woźniak
- Department of Food Safety and Chemical Analysis, Waclaw Dabrowski Institute of Agricultural and Food Biotechnology—State Research Institute, 02-532 Warsaw, Poland
| | - Marta Modrzewska
- Department of Food Safety and Chemical Analysis, Waclaw Dabrowski Institute of Agricultural and Food Biotechnology—State Research Institute, 02-532 Warsaw, Poland
| | - Agnieszka Waśkiewicz
- Department of Chemistry, Poznań University of Life Sciences, Wojska Polskiego 75, 60-625 Poznań, Poland
- Correspondence: ; Tel.: +48-61-848-78-41
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9
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Li F, Duan X, Zhang L, Jiang D, Zhao X, Meng E, Yi R, Liu C, Li Y, Wang JS, Zhao X, Li W, Zhou J. Mycotoxin surveillance on wheats in Shandong province, China, reveals non-negligible probabilistic health risk of chronic gastrointestinal diseases posed by deoxynivalenol. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:71826-71839. [PMID: 35604603 DOI: 10.1007/s11356-022-20812-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 05/10/2022] [Indexed: 06/15/2023]
Abstract
Abnormal climate changes have resulted in over-precipitation in many regions. The occurrence and contamination levels of mycotoxins in crops and cereals have been elevated largely. From 2017 to 2019, we did investigation targeting 15 mycotoxins shown in the wheat samples collected from Shandong, a region suffering over-precipitation in China. We found that deoxynivalenol (DON) was the dominant mycotoxin contaminating wheats, with detection rates 304/340 in 2017 (89.41%), 303/330 in 2018 (91.82%), and 303/340 in 2019 (89.12%). The ranges of DON levels were < 4 to 580 μg/kg in 2017, < 4 to 3070 μg/kg in 2018, and < 4 to 1540 μg/kg in 2019. The exposure levels were highly correlated with local precipitation. Male exposure levels were generally higher than female's, with significant difference found in 2017 (1.89-fold, p = 0.023). Rural exposure levels were higher than that of cities but not statistically significant (1.41-fold, p = 0.13). Estimated daily intake (EDI) and margin of exposure (MoE) approaches revealed that 8 prefecture cities have probabilistically extra adverse health effects (vomiting or diarrhea) cases > 100 patients in 100,000 residents attributable to DON exposure. As a prominent wheat-growing area, Dezhou city reached ~ 300/100,000 extra cases while being considered as a major regional contributor to DON contamination. Our study suggests that more effort should be given to the prevention and control of DON contamination in major wheat-growing areas, particularly during heavy precipitation year. The mechanistic association between DON and chronic intestinal disorder/diseases should be further investigated.
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Affiliation(s)
- Fenghua Li
- Academy of Preventive Medicine, Shandong University, Jinan, 250014, China
- Department of Chemistry and Physics, Center for Food Safety Risk Assessment, Shandong Center for Disease Control and Prevention, Jinan, 250014, China
| | - Xinglan Duan
- School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, 250012, China
| | - Liwen Zhang
- Department of Toxicology and Nutrition, School of Public Health, Shandong University, Jinan, 250012, China
| | - Dafeng Jiang
- Academy of Preventive Medicine, Shandong University, Jinan, 250014, China
- Department of Chemistry and Physics, Center for Food Safety Risk Assessment, Shandong Center for Disease Control and Prevention, Jinan, 250014, China
| | - Xianqi Zhao
- School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, 250012, China
| | - En Meng
- School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, 250012, China
| | - Ran Yi
- School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, 250012, China
| | - Chang Liu
- School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, 250012, China
| | - Yirui Li
- School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, 250012, China
| | - Jia-Sheng Wang
- Interdisciplinary Toxicology Program and Department of Environmental Health Science, College of Public Health, University of Georgia, Athens, GA, 30602, USA
| | - Xiulan Zhao
- Department of Toxicology and Nutrition, School of Public Health, Shandong University, Jinan, 250012, China
| | - Wei Li
- Academy of Preventive Medicine, Shandong University, Jinan, 250014, China
- Department of Chemistry and Physics, Center for Food Safety Risk Assessment, Shandong Center for Disease Control and Prevention, Jinan, 250014, China
| | - Jun Zhou
- Department of Toxicology and Nutrition, School of Public Health, Shandong University, Jinan, 250012, China.
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10
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Jing S, Liu C, Zheng J, Dong Z, Guo N. Toxicity of zearalenone and its nutritional intervention by natural products. Food Funct 2022; 13:10374-10400. [PMID: 36165278 DOI: 10.1039/d2fo01545e] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Zearalenone (ZEN) is a toxic secondary metabolite mainly produced by fungi of the genus Fusarium, and is often present in various food and feed ingredients such as corn and wheat. The structure of ZEN is similar to that of natural estrogen, and it can bind to estrogen receptors and has estrogenic activity. Therefore, it can cause endocrine-disrupting effects and promote the proliferation of estrogen receptor-positive cell lines. In addition, ZEN can cause oxidative damage, endoplasmic reticulum stress, apoptosis, and other hazards, resulting in systemic toxic effects, including reproductive toxicity, hepatotoxicity, and immunotoxicity. In the past few decades, researchers have tried many ways to remove ZEN from food and feed, but it is still a challenge to eliminate it. In recent years, natural compounds have become of interest for their excellent protective effects on human health from food contaminants. Researchers have discovered that natural compounds often used as dietary supplements can effectively alleviate ZEN-induced systemic toxic effects. Most of the compounds mitigate ZEN-induced toxicity through antioxidant effects. In this article, the contamination of food and feed by ZEN and the various toxic effects and mechanisms of ZEN are reviewed, as well as the mitigation effects of natural compounds on ZEN-induced toxicity.
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Affiliation(s)
- Siyuan Jing
- College of Food Science and Engineering, Jilin University, Changchun 130062, China.
| | - Chunmei Liu
- College of Food Science and Engineering, Jilin University, Changchun 130062, China.
| | - Jian Zheng
- College of Food Science and Engineering, Jilin University, Changchun 130062, China.
| | - Zhijian Dong
- College of Food Science and Engineering, Jilin University, Changchun 130062, China.
| | - Na Guo
- College of Food Science and Engineering, Jilin University, Changchun 130062, China.
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11
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Smaoui S, Agriopoulou S, D'Amore T, Tavares L, Mousavi Khaneghah A. The control of Fusarium growth and decontamination of produced mycotoxins by lactic acid bacteria. Crit Rev Food Sci Nutr 2022; 63:11125-11152. [PMID: 35708071 DOI: 10.1080/10408398.2022.2087594] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Global crop and food contamination with mycotoxins are one of the primary worldwide concerns, while there are several restrictions regarding approaching conventional physical and chemical mycotoxins decontamination methods due to nutrition loss, sensory attribute reduction in foods, chemical residual, inconvenient operation, high cost of equipment, and high energy consumption of some methods. In this regard, the overarching challenges of mycotoxin contamination in food and food crops require the development of biological decontamination strategies. Using certain lactic acid bacteria (LAB) as generally recognized safe (GRAS) compounds is one of the most effective alternatives due to their potential to release antifungal metabolites against various fungal factors species. This review highlights the potential applications of LAB as biodetoxificant agents and summarizes their decontamination activities against Fusarium growth and Fusarium mycotoxins released into food/feed. Firstly, the occurrence of Fusarium and the instrumental and bioanalytical methods for the analysis of mycotoxins were in-depth discussed. Upgraded knowledge on the biosynthesis pathway of mycotoxins produced by Fusarium offers new insightful ideas clarifying the function of these secondary metabolites. Moreover, the characterization of LAB metabolites and their impact on the decontamination of the mycotoxin from Fusarium, besides the main mechanisms of mycotoxin decontamination, are covered. While the thematic growth inhibition of Fusarium and decontamination of their mycotoxin by LAB is very complex, approaching certain lactic acid bacteria (LAB) is worth deeper investigations.
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Affiliation(s)
- Slim Smaoui
- Laboratory of Microbial, Enzymatic Biotechnology and Biomolecules (LBMEB), Center of Biotechnology of Sfax, University of Sfax-Tunisia, Sfax, Tunisia
| | - Sofia Agriopoulou
- Department of Food Science and Technology, University of the Peloponnese, Antikalamos, Kalamata, Greece
| | - Teresa D'Amore
- Chemistry Department, Istituto Zooprofilattico Sperimentale della Puglia e della Basilicata (IZSPB), Foggia, Italy
| | - Loleny Tavares
- Institute of Food Science and Technology, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, CEP, Brazil
| | - Amin Mousavi Khaneghah
- Department of Fruit and Vegetable Product Technology, Prof. Wacław Dąbrowski Institute of Agricultural and Food Biotechnology - State Research Institute, Warsaw, Poland
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12
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13
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Deoxynivalenol: An Overview on Occurrence, Chemistry, Biosynthesis, Health Effects and Its Detection, Management, and Control Strategies in Food and Feed. MICROBIOLOGY RESEARCH 2022. [DOI: 10.3390/microbiolres13020023] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Mycotoxins are fungi-produced secondary metabolites that can contaminate many foods eaten by humans and animals. Deoxynivalenol (DON), which is formed by Fusarium, is one of the most common occurring predominantly in cereal grains and thus poses a significant health risk. When DON is ingested, it can cause both acute and chronic toxicity. Acute signs include abdominal pain, anorexia, diarrhea, increased salivation, vomiting, and malaise. The most common effects of chronic DON exposure include changes in dietary efficacy, weight loss, and anorexia. This review provides a succinct overview of various sources, biosynthetic mechanisms, and genes governing DON production, along with its consequences on human and animal health. It also covers the effect of environmental factors on its production with potential detection, management, and control strategies.
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14
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Gagiu V, Mateescu E, Belc N, Oprea OA, Pîrvu GP. Assessment of Fusarium-Damaged Kernels in Common Wheat in Romania in the Years 2015 and 2016 with Extreme Weather Events. Toxins (Basel) 2022; 14:toxins14050326. [PMID: 35622573 PMCID: PMC9145446 DOI: 10.3390/toxins14050326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 04/26/2022] [Accepted: 04/28/2022] [Indexed: 12/04/2022] Open
Abstract
This article assesses the occurrence of Fusarium-damaged kernels (FDKs) in common wheat (Triticum aestivum) under the influence of environmental factors and extreme weather events in Romania (exceptionally high air temperatures and extreme pedological drought produced by a dipole block in summer 2015, and extreme precipitation and floods produced by an omega block in spring 2016). Wheat samples (N = 272) were analyzed for FDKs via visual estimation and manual weighing according to ISO 7970 and are statistically evaluated using SPSS. The dipole block in 2015 reduced the effects of environmental factors to non-significant correlations with FDKs, while the omega block in 2016 was non-significantly to very significantly correlated with FDKs in the northwestern and western regions. The occurrence of FDKs was favored for wheat cultivation in acidic soils and inhibited in alkaline soils. Wheat samples with FDKs ≥ 1% were sampled from crops grown in river meadows with high and very high risks of flooding. Knowing the contaminants’ geographical and spatial distributions under the influence of regular and extreme weather events is important for establishing measures to mitigate the effects of climate change and to ensure human and animal health.
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Affiliation(s)
- Valeria Gagiu
- National Research & Development Institute for Food Bioresources—IBA Bucharest, 020323 Bucharest, Romania; (N.B.); (G.-P.P.)
- Correspondence:
| | - Elena Mateescu
- National Meteorological Administration (METEO—Romania), 013686 Bucharest, Romania; (E.M.); (O.-A.O.)
| | - Nastasia Belc
- National Research & Development Institute for Food Bioresources—IBA Bucharest, 020323 Bucharest, Romania; (N.B.); (G.-P.P.)
| | - Oana-Alexandra Oprea
- National Meteorological Administration (METEO—Romania), 013686 Bucharest, Romania; (E.M.); (O.-A.O.)
| | - Gina-Pușa Pîrvu
- National Research & Development Institute for Food Bioresources—IBA Bucharest, 020323 Bucharest, Romania; (N.B.); (G.-P.P.)
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15
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Janić Hajnal E, Babič J, Pezo L, Banjac V, Čolović R, Kos J, Krulj J, Pavšič-Vrtač K, Jakovac-Strajn B. Effects of extrusion process on Fusarium and Alternaria mycotoxins in whole grain triticale flour. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2021.112926] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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16
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Muharremi H, Raka L, Spahiu J, Tershnjaku I, Topi D. Investigation of aflatoxin M1 in baby milk and aflatoxin B1 in infant cereals marketed in Kosovo. J FOOD PROCESS PRES 2022. [DOI: 10.1111/jfpp.16285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Hidajete Muharremi
- Faculty of Agriculture and Veterinary University of Pristina Pristina Kosovo
| | - Lul Raka
- Faculty of Medicine Hasan Prishtina University of Pristina Pristina Kosovo
| | - Jeton Spahiu
- Department of Serology and Molecular Diagnostics Food and Veterinary Agency Pristina Kosovo
- Department of Pharmacology College of Medical Sciences ‘Rezonanca’ Pristina Kosovo
| | - Ibrahim Tershnjaku
- Department of Serology and Molecular Diagnostics Food and Veterinary Agency Pristina Kosovo
| | - Dritan Topi
- Faculty of Natural Sciences University of Tirana Tirana Albania
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Gacem MA, Abd-Elsalam KA. Nanomaterials for the Reduction of Mycotoxins in Cereals. CEREAL DISEASES: NANOBIOTECHNOLOGICAL APPROACHES FOR DIAGNOSIS AND MANAGEMENT 2022:371-406. [DOI: 10.1007/978-981-19-3120-8_18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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18
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In vitro and in vivo evaluation of AFB1 and OTA-toxicity through immunofluorescence and flow cytometry techniques: A systematic review. Food Chem Toxicol 2021; 160:112798. [PMID: 34973406 DOI: 10.1016/j.fct.2021.112798] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 12/03/2021] [Accepted: 12/24/2021] [Indexed: 01/20/2023]
Abstract
Due to the globalization, mycotoxins have been considered a major risk to human health being the main contaminants of foodstuffs. Among them, AFB1 and OTA are the most toxic and studied. Therefore, the goal of this review is to deepen the knowledge about the toxicological effects that AFB1 and OTA can induce on human health by using flow cytometry and immunofluorescence techniques in vitro and in vivo models. The examination of the selected reports shows that the majority of them are focused on immunotoxicity while the rest are concerned about nephrotoxicity, hepatotoxicity, gastrointestinal toxicity, neurotoxicity, embryotoxicity, reproductive system, breast, esophageal and lung toxicity. In relation to immunofluorescence analysis, biological processes related to AFB1- and OTA-toxicity were evaluated such as inflammation, neuronal differentiation, DNA damage, oxidative stress and cell death. In flow cytometry analysis, a wide range of assays have been performed across the reviewed studies being apoptosis assay, cell cycle analysis and intracellular ROS measurement the most employed. Although, the toxic effects of AFB1 and OTA have been reported, further research is needed to clarify AFB1 and OTA-mechanism of action on human health.
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Gagiu V, Mateescu E, Dobre AA, Smeu I, Cucu ME, Oprea OA, Alexandru D, Iorga E, Belc N. Deoxynivalenol Occurrence in Triticale Crops in Romania during the 2012-2014 Period with Extreme Weather Events. Toxins (Basel) 2021; 13:toxins13070456. [PMID: 34210066 PMCID: PMC8310060 DOI: 10.3390/toxins13070456] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Revised: 06/18/2021] [Accepted: 06/18/2021] [Indexed: 11/29/2022] Open
Abstract
This article aims to evaluate deoxynivalenol occurrence in triticale crops in Romania in years with extreme weather events (2012: Siberian anticyclone with cold waves and heavy snowfall; 2013 and 2014: “Vb” cyclones with heavy precipitation and floods in spring). The deoxynivalenol level in triticale samples (N = 236) was quantified by ELISA. In Romania, the extreme weather events favoured deoxynivalenol occurrence in triticale in Transylvania and the Southern Hilly Area (44–47° N, 22–25° E) with a humid/balanced-humid temperate continental climate, luvisols and high/very high risk of floods. Maximum deoxynivalenol contamination was lower in the other regions, although heavy precipitation in May–July 2014 was higher, with chernozems having higher aridity. Multivariate analysis of the factors influencing deoxynivalenol occurrence in triticale showed at least a significant correlation for all components of variation source (agricultural year, agricultural region, average of deoxynivalenol, average air temperature, cumulative precipitation, soil moisture reserve, aridity indices) (p-value < 0.05). The spatial and geographic distribution of deoxynivalenol in cereals in the countries affected by the 2012–2014 extreme weather events revealed a higher contamination in Central Europe compared to southeastern and eastern Europe. Deoxynivalenol occurrence in cereals was favoured by local and regional agroclimatic factors and was amplified by extreme weather events.
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Affiliation(s)
- Valeria Gagiu
- National Research & Development Institute for Food Bioresources—IBA Bucharest, 5 Baneasa Ancuta Street, 2nd District, 020323 Bucharest, Romania; (A.A.D.); (I.S.); (M.E.C.); (E.I.); (N.B.)
- Correspondence:
| | - Elena Mateescu
- National Meteorological Administration (METEO—Romania), 97 Bucuresti-Ploiesti Street, 1st District, 013686 Bucharest, Romania; (E.M.); (O.A.O.); (D.A.)
| | - Alina Alexandra Dobre
- National Research & Development Institute for Food Bioresources—IBA Bucharest, 5 Baneasa Ancuta Street, 2nd District, 020323 Bucharest, Romania; (A.A.D.); (I.S.); (M.E.C.); (E.I.); (N.B.)
| | - Irina Smeu
- National Research & Development Institute for Food Bioresources—IBA Bucharest, 5 Baneasa Ancuta Street, 2nd District, 020323 Bucharest, Romania; (A.A.D.); (I.S.); (M.E.C.); (E.I.); (N.B.)
| | - Mirela Elena Cucu
- National Research & Development Institute for Food Bioresources—IBA Bucharest, 5 Baneasa Ancuta Street, 2nd District, 020323 Bucharest, Romania; (A.A.D.); (I.S.); (M.E.C.); (E.I.); (N.B.)
| | - Oana Alexandra Oprea
- National Meteorological Administration (METEO—Romania), 97 Bucuresti-Ploiesti Street, 1st District, 013686 Bucharest, Romania; (E.M.); (O.A.O.); (D.A.)
| | - Daniel Alexandru
- National Meteorological Administration (METEO—Romania), 97 Bucuresti-Ploiesti Street, 1st District, 013686 Bucharest, Romania; (E.M.); (O.A.O.); (D.A.)
| | - Enuța Iorga
- National Research & Development Institute for Food Bioresources—IBA Bucharest, 5 Baneasa Ancuta Street, 2nd District, 020323 Bucharest, Romania; (A.A.D.); (I.S.); (M.E.C.); (E.I.); (N.B.)
| | - Nastasia Belc
- National Research & Development Institute for Food Bioresources—IBA Bucharest, 5 Baneasa Ancuta Street, 2nd District, 020323 Bucharest, Romania; (A.A.D.); (I.S.); (M.E.C.); (E.I.); (N.B.)
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Babič J, Tavčar-Kalcher G, Celar FA, Kos K, Knific T, Jakovac-Strajn B. Occurrence of Alternaria and Other Toxins in Cereal Grains Intended for Animal Feeding Collected in Slovenia: A Three-Year Study. Toxins (Basel) 2021; 13:304. [PMID: 33923249 PMCID: PMC8145452 DOI: 10.3390/toxins13050304] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 04/19/2021] [Accepted: 04/22/2021] [Indexed: 11/16/2022] Open
Abstract
In recent years, the less-studied Alternaria mycotoxins have attracted increasing interest due to the lack of survey data and their ability to cause toxic effects in animals and humans. To fill the gap, the aim of this three-year survey was to investigate the presence and co-occurrence of Alternaria and other mycotoxins in a total of 433 cereal grain samples from Slovenian farms and agricultural cooperatives from 2014 to 2016. Using the multi-mycotoxin method, 14 mycotoxins were determined. In 53% of 433 analysed samples, contamination with at least one mycotoxin was found. Deoxynivalenol (DON) and tenuazonic acid (TeA) were present in 32% and 26% of cereal grain samples, respectively, whereas alternariol (AOH), tentoxin (TEN), alternariol monomethyl ether (AME), 3- and 15-acetyldeoxynivalenol (3- and 15-AcDON), and zearalenone (ZEN) were present in fewer than 15% of the samples. Ochratoxin A (OTA) was found in one rye sample, while diacetoxyscirpenol (DAS), HT-2 and T-2 toxin, and fumonisins B1 and B2 (FB1 and FB2) were not detected. The highest maximum and median concentrations of Alternaria toxins were determined in spelt in 2016 (TeA, 2277 µg/kg and 203 µg/kg, respectively), and those of Fusarium toxins in wheat in 2015 (DON, 4082 µg/kg and 387 µg/kg, respectively). The co-occurrence of two or more mycotoxins was found in 43% of the positive samples. The correlations between Alternaria toxins were very weak but statistically significant (r: 0.15-0.17, p: 0.0042-0.0165). A well-known correlation between Fusarium toxins DON and ZEN was weak and highly significant (r = 0.28, p < 0.0001).
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Affiliation(s)
- Janja Babič
- Institute of Food Safety, Feed and Environment, Veterinary Faculty, University of Ljubljana, Gerbičeva 60, 1000 Ljubljana, Slovenia; (J.B.); (T.K.); (B.J.-S.)
| | - Gabrijela Tavčar-Kalcher
- Institute of Food Safety, Feed and Environment, Veterinary Faculty, University of Ljubljana, Gerbičeva 60, 1000 Ljubljana, Slovenia; (J.B.); (T.K.); (B.J.-S.)
| | - Franci Aco Celar
- Department of Agronomy, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, 1000 Ljubljana, Slovenia; (F.A.C.); (K.K.)
| | - Katarina Kos
- Department of Agronomy, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, 1000 Ljubljana, Slovenia; (F.A.C.); (K.K.)
| | - Tanja Knific
- Institute of Food Safety, Feed and Environment, Veterinary Faculty, University of Ljubljana, Gerbičeva 60, 1000 Ljubljana, Slovenia; (J.B.); (T.K.); (B.J.-S.)
| | - Breda Jakovac-Strajn
- Institute of Food Safety, Feed and Environment, Veterinary Faculty, University of Ljubljana, Gerbičeva 60, 1000 Ljubljana, Slovenia; (J.B.); (T.K.); (B.J.-S.)
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