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Jia R, Tian S, Yang Z, Lu S, Wang L, Zhang G. The mitigative role of novel aflatoxin-degrading enzymes in diverse broiler performance indicators and gut microbiota following the consumption of diets contaminated with aflatoxins. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024; 104:7441-7453. [PMID: 38738519 DOI: 10.1002/jsfa.13564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Revised: 04/23/2024] [Accepted: 04/23/2024] [Indexed: 05/14/2024]
Abstract
BACKGROUND This study aims to explore both the toxic effects of aflatoxins (AFs) and the protective effects of degrading enzymes (DE) on broilers exposed to AFs. RESULTS The findings reveal that a diet contaminated with 69.15 μg kg-1 of aflatoxin B1 had significant adverse effects on broilers. Specifically, it led to a reduction in average daily gain, dressed yield percentage, half-eviscerated yield with giblet yield percentage, eviscerated yield percentage, as well as serum superoxide dismutase (SOD), glutathione peroxidase activity and liver SOD activity (P < 0.05). Conversely, the diet increased the feed conversion ratio, liver index, serum glutamic oxaloacetic transaminase levels and malondialdehyde levels in both serum and liver (P < 0.05). Additionally, AFs disrupted the intestinal microflora significantly (P < 0.05), altering the relative abundance of Enterococcus, Lactobacillus and Escherichia in broiler jejunum. The addition of DE to AF-contaminated feed mitigated these negative effects and reduced the residues of aflatoxin B1, aflatoxin B2 and aflatoxin M1 in the liver and duodenum (P < 0.05). We also observed that broilers fed the diet pelleted at 80 °C exhibited improved dressing percentage and water holding capacity compared to those on the 75 °C diet. CONCLUSION In summary, DE serves as an effective feed additive for mitigating AF contamination in poultry production. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Ru Jia
- School of Life Science, Shanxi University, Taiyuan, China
| | - Senmiao Tian
- School of Life Science, Shanxi University, Taiyuan, China
| | - Zhaofeng Yang
- School of Life Science, Shanxi University, Taiyuan, China
| | - Simeng Lu
- School of Life Science, Shanxi University, Taiyuan, China
| | - Lan Wang
- School of Life Science, Shanxi University, Taiyuan, China
| | - Guohua Zhang
- School of Life Science, Shanxi University, Taiyuan, China
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Hudu AR, Addy F, Mahunu GK, Abubakari A, Opoku N. Zearalenone contamination in maize, its associated producing fungi, control strategies, and legislation in Sub-Saharan Africa. Food Sci Nutr 2024; 12:4489-4512. [PMID: 39055180 PMCID: PMC11266927 DOI: 10.1002/fsn3.4125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 02/26/2024] [Accepted: 03/13/2024] [Indexed: 07/27/2024] Open
Abstract
The fungal genus Fusarium contains many important plant pathogens as well as endophytes of wild and crop plants. Globally, Fusarium toxins in food crops are considered one of the greatest food safety concerns. Their occurrence has become more pronounced in Africa in recent times. Among the major Fusarium mycotoxins with food and feed safety concerns, zearalenone is frequently detected in finished feeds and cereals in Africa. However, the impact of indigenous agricultural practices (pre- and postharvest factors) and food processing techniques on the prevalence rate of Fusarium species and zearalenone occurrence in food and feed have not been collated and documented systematically. This review studies and analyzes recent reports on zearalenone contamination in maize and other cereal products from Africa, including its fungi producers, agronomic and climate variables impacting their occurrences, preventive measures, removal/decontamination methods, and legislations regulating their limits. Reports from relevant studies demonstrated a high prevalence of F. verticillioides and F. graminearum as Africa's main producers of zearalenone. Elevated CO2 concentration and high precipitation may carry along an increased risk of zearalenone contamination in maize. African indigenous processing methods may contribute to reduced ZEA levels in agricultural products and foods. Most African countries do not know their zearalenone status in the food supply chain and they have limited regulations that control its occurrence.
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Affiliation(s)
- Abdul Rashid Hudu
- Department of Agricultural Biotechnology, Faculty of Agriculture, Food and Consumer SciencesUniversity for Development StudiesNyankpalaGhana
| | - Francis Addy
- Department of Biotechnology and Molecular Biology, Faculty of BiosciencesUniversity for Development StudiesNyankpalaGhana
| | - Gustav Komla Mahunu
- Department of Food Science and Technology, Faculty of Agriculture, Food, and Consumer SciencesUniversity for Development StudiesNyankpalaGhana
| | - Abdul‐Halim Abubakari
- Department of Horticulture, Faculty of Agriculture, Food, and Consumer SciencesUniversity for Development StudiesNyankpalaGhana
| | - Nelson Opoku
- Department of Biotechnology and Molecular Biology, Faculty of BiosciencesUniversity for Development StudiesNyankpalaGhana
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Rangel-Muñoz EJ, Valdivia-Flores AG, Cruz-Vázquez C, de-Luna-López MC, Hernández-Valdivia E, Vitela-Mendoza I, Medina-Esparza L, Quezada-Tristán T. Increased Dissemination of Aflatoxin- and Zearalenone-Producing Aspergillus spp. and Fusarium spp. during Wet Season via Houseflies on Dairy Farms in Aguascalientes, Mexico. Toxins (Basel) 2024; 16:302. [PMID: 39057942 PMCID: PMC11281273 DOI: 10.3390/toxins16070302] [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: 05/30/2024] [Revised: 06/26/2024] [Accepted: 06/27/2024] [Indexed: 07/28/2024] Open
Abstract
Crops contamination with aflatoxins (AFs) and zearalenone (ZEA) threaten human and animal health; these mycotoxins are produced by several species of Aspergillus and Fusarium. The objective was to evaluate under field conditions the influence of the wet season on the dissemination of AF- and ZEA-producing fungi via houseflies collected from dairy farms. Ten dairy farms distributed in the semi-arid Central Mexican Plateau were selected. Flies were collected in wet and dry seasons at seven points on each farm using entomological traps. Fungi were isolated from fly carcasses via direct seeding with serial dilutions and wet chamber methods. The production of AFs and ZEA from pure isolates was quantified using indirect competitive ELISA. A total of 693 Aspergillus spp. and 1274 Fusarium spp. isolates were obtained, of which 58.6% produced AFs and 50.0% produced ZEA (491 ± 122; 2521 ± 1295 µg/kg). Houseflies and both fungal genera were invariably present, but compared to the dry season, there was a higher abundance of flies as well as AF- and ZEA-producing fungi in the wet season (p < 0.001; 45.3/231 flies/trap; 8.6/29.6% contaminated flies). These results suggest that rainy-weather conditions on dairy farms increase the spread of AF- and ZEA-producing Aspergillus spp. and Fusarium spp. through houseflies and the incorporation of their mycotoxins into the food chain.
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Affiliation(s)
- Erika Janet Rangel-Muñoz
- Departamento de Ciencias Veterinarias, Centro de Ciencias Agropecuarias, Universidad Autónoma de Aguascalientes, Aguascalientes 20131, Mexico; (E.J.R.-M.); (M.C.d.-L.-L.); (E.H.-V.); (T.Q.-T.)
| | - Arturo Gerardo Valdivia-Flores
- Departamento de Ciencias Veterinarias, Centro de Ciencias Agropecuarias, Universidad Autónoma de Aguascalientes, Aguascalientes 20131, Mexico; (E.J.R.-M.); (M.C.d.-L.-L.); (E.H.-V.); (T.Q.-T.)
| | - Carlos Cruz-Vázquez
- División de Estudios de Posgrado e Investigación, Tecnológico Nacional de México, Instituto Tecnológico El Llano Aguascalientes, km 18 carretera Aguascalientes—San Luis Potosí, El Llano, Aguascalientes 20330, Mexico; (C.C.-V.); (I.V.-M.)
| | - María Carolina de-Luna-López
- Departamento de Ciencias Veterinarias, Centro de Ciencias Agropecuarias, Universidad Autónoma de Aguascalientes, Aguascalientes 20131, Mexico; (E.J.R.-M.); (M.C.d.-L.-L.); (E.H.-V.); (T.Q.-T.)
| | - Emmanuel Hernández-Valdivia
- Departamento de Ciencias Veterinarias, Centro de Ciencias Agropecuarias, Universidad Autónoma de Aguascalientes, Aguascalientes 20131, Mexico; (E.J.R.-M.); (M.C.d.-L.-L.); (E.H.-V.); (T.Q.-T.)
| | - Irene Vitela-Mendoza
- División de Estudios de Posgrado e Investigación, Tecnológico Nacional de México, Instituto Tecnológico El Llano Aguascalientes, km 18 carretera Aguascalientes—San Luis Potosí, El Llano, Aguascalientes 20330, Mexico; (C.C.-V.); (I.V.-M.)
| | - Leticia Medina-Esparza
- División de Estudios de Posgrado e Investigación, Tecnológico Nacional de México, Instituto Tecnológico El Llano Aguascalientes, km 18 carretera Aguascalientes—San Luis Potosí, El Llano, Aguascalientes 20330, Mexico; (C.C.-V.); (I.V.-M.)
| | - Teódulo Quezada-Tristán
- Departamento de Ciencias Veterinarias, Centro de Ciencias Agropecuarias, Universidad Autónoma de Aguascalientes, Aguascalientes 20131, Mexico; (E.J.R.-M.); (M.C.d.-L.-L.); (E.H.-V.); (T.Q.-T.)
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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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Lapris M, Errico M, Rocchetti G, Gallo A. The Potential of Multi-Screening Methods and Omics Technologies to Detect Both Regulated and Emerging Mycotoxins in Different Matrices. Foods 2024; 13:1746. [PMID: 38890974 PMCID: PMC11171533 DOI: 10.3390/foods13111746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Revised: 05/23/2024] [Accepted: 05/27/2024] [Indexed: 06/20/2024] Open
Abstract
Mycotoxins are well-known secondary metabolites produced by several fungi that grow and occur in different crops during both pre-harvest and post-harvest conditions. The contamination and occurrence of mycotoxins currently represent some of the major issues in the entire agri-food system. The quantification of mycotoxins in different feeds and foodstuffs is extremely difficult because of the low concentration ranges; therefore, both sample collection and preparation are essential to providing accurate detection and reliable quantification. Currently, several analytical methods are available for the detection of mycotoxins in both feed and food products, and liquid chromatography coupled with high-resolution mass spectrometry (LC-HRMS) represents the most reliable instrumental approach. In particular, the fast development of high-throughput methods has made it possible to screen and analyze, in the same analytical run and with high accuracy, multiple mycotoxins, such as those regulated, masked, or modified, and emerging ones. Therefore, the aim of this review is to provide an overview of the state of the art of mycotoxins occurrence, health-related concerns, and analyses, discussing the need to perform multi-screening approaches combined with omics technologies to simultaneously analyze several mycotoxins in different feed and food matrices. This approach is expected to provide more comprehensive information about the profile and distribution of emerging mycotoxins, thus enhancing the understanding of their co-occurrence and impact on the entire production chain.
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Affiliation(s)
| | | | - Gabriele Rocchetti
- Department of Animal Science, Food and Nutrition, Università Cattolica del Sacro Cuore, Via Emilia Parmense 84, 29122 Piacenza, Italy; (M.L.); (M.E.); (A.G.)
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Kos J, Radić B, Lešić T, Anić M, Jovanov P, Šarić B, Pleadin J. Climate Change and Mycotoxins Trends in Serbia and Croatia: A 15-Year Review. Foods 2024; 13:1391. [PMID: 38731762 PMCID: PMC11083470 DOI: 10.3390/foods13091391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Revised: 04/22/2024] [Accepted: 04/25/2024] [Indexed: 05/13/2024] Open
Abstract
This review examines the 15-year presence of mycotoxins in food from Serbia and Croatia to provide a comprehensive overview of trends. Encompassing the timeframe from 2009 to 2023, this study integrates data from both countries and investigates climate change patterns. The results from Serbia focus primarily on maize and milk and show a strong dependence of contamination on weather conditions. However, there is limited data on mycotoxins in cereals other than maize, as well as in other food categories. Conversely, Croatia has a broader spectrum of studies, with significant attention given to milk and maize, along with more research on other cereals, meat, and meat products compared to Serbia. Over the investigated 15-year period, both Serbia and Croatia have experienced notable shifts in climate, including fluctuations in temperature, precipitation, and humidity levels. These changes have significantly influenced agriculture, consequently affecting the occurrence of mycotoxins in various food products. The results summarized in this 15-year review indicate the urgent need for further research and action to address mycotoxins contamination in Serbian and Croatian food supply chains. This urgency is further emphasized by the changing climatic conditions and their potential to exacerbate public health and food safety risks associated with mycotoxins.
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Affiliation(s)
- Jovana Kos
- Institute of Food Technology in Novi Sad, University of Novi Sad, Bulevar Cara Lazara 1, 21000 Novi Sad, Serbia; (B.R.); (P.J.); (B.Š.)
| | - Bojana Radić
- Institute of Food Technology in Novi Sad, University of Novi Sad, Bulevar Cara Lazara 1, 21000 Novi Sad, Serbia; (B.R.); (P.J.); (B.Š.)
| | - Tina Lešić
- Laboratory for Analytical Chemistry, Croatian Veterinary Institute, Savska Cesta 143, 10000 Zagreb, Croatia; (T.L.); (J.P.)
| | - Mislav Anić
- Croatian Meteorological and Hydrological Service, Ravnice 48, 10000 Zagreb, Croatia;
| | - Pavle Jovanov
- Institute of Food Technology in Novi Sad, University of Novi Sad, Bulevar Cara Lazara 1, 21000 Novi Sad, Serbia; (B.R.); (P.J.); (B.Š.)
| | - Bojana Šarić
- Institute of Food Technology in Novi Sad, University of Novi Sad, Bulevar Cara Lazara 1, 21000 Novi Sad, Serbia; (B.R.); (P.J.); (B.Š.)
| | - Jelka Pleadin
- Laboratory for Analytical Chemistry, Croatian Veterinary Institute, Savska Cesta 143, 10000 Zagreb, Croatia; (T.L.); (J.P.)
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Kos J, Radić B, Radović R, Šarić B, Jovanov P, Šarić L. Aflatoxins in maize, milk and dairy products from Serbia. FOOD ADDITIVES & CONTAMINANTS. PART B, SURVEILLANCE 2024:1-12. [PMID: 38616521 DOI: 10.1080/19393210.2024.2335656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Accepted: 03/24/2024] [Indexed: 04/16/2024]
Abstract
This study presents data on the occurrence of aflatoxins B1, B2, G1 and G2 in maize and aflatoxin M1 (AFM1) in milk and dairy products from Serbia in 2022. A total of 100 maize samples were analysed using liquid chromatography tandem mass spectrometry, while 107 cow and goat milk, besides dairy products were tested with an ELISA method. Aflatoxins contaminated 78% of the maize samples, with aflatoxin B1 as the most prevalent aflatoxin, also at the highest determined level. All milk samples tested positive for AFM1, while contamination in dairy products ranged from 14% to 100%. The hot and dry weather during the 2022 maize growing season, characterised by moderate to extreme drought conditions, significantly increased maize contamination with aflatoxins, impacting subsequent milk and dairy products contamination. The findings of this study confirm the continuous trend and persistent challenge in Serbia concerning the prevalence of aflatoxins in maize and milk, closely linked to climate change.
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Affiliation(s)
- Jovana Kos
- Institute of food technology in Novi Sad, University of Novi Sad, Serbia
| | - Bojana Radić
- Institute of food technology in Novi Sad, University of Novi Sad, Serbia
| | - Radmila Radović
- Institute of food technology in Novi Sad, University of Novi Sad, Serbia
| | - Bojana Šarić
- Institute of food technology in Novi Sad, University of Novi Sad, Serbia
| | - Pavle Jovanov
- Institute of food technology in Novi Sad, University of Novi Sad, Serbia
| | - Ljubiša Šarić
- Institute of food technology in Novi Sad, University of Novi Sad, Serbia
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Furlong EB, Buffon JG, Cerqueira MB, Kupski L. Mitigation of Mycotoxins in Food-Is It Possible? Foods 2024; 13:1112. [PMID: 38611416 PMCID: PMC11011883 DOI: 10.3390/foods13071112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 04/01/2024] [Accepted: 04/03/2024] [Indexed: 04/14/2024] Open
Abstract
Among microorganisms found in food, fungi stand out because they are adaptable and competitive in a large range of water activities, temperatures, pHs, humidities and substrate types. Besides sporulating, some species are toxigenic and produce toxic metabolites, mycotoxins, under adverse biotic and abiotic variables. Microorganisms are inactivated along the food chain, but mycotoxins have stable structures and remain in ready-to-eat food. The most prevalent mycotoxins in food, which are aflatoxins, fumonisins, ochratoxin A, patulin, tenuazonic acid, trichothecenes and zearalenone, have maximum tolerable limits (MTLs) defined as ppb and ppt by official organizations. The chronic and acute toxicities of mycotoxins and their stability are different in a chemical family. This critical review aims to discuss promising scientific research that successfully mitigated levels of mycotoxins and focus the results of our research group on this issue. It highlights the application of natural antifungal compounds, combinations of management, processing parameters and emergent technologies, and their role in reducing the levels and bioaccessibility. Despite good crop management and processing practices, total decontamination is almost impossible. Experimental evidence has shown that exposure to mycotoxins may be mitigated. However, multidisciplinary efforts need to be made to improve the applicability of successful techniques in the food supply chain to avoid mycotoxins' impact on global food insecurity.
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Affiliation(s)
| | | | | | - Larine Kupski
- Laboratory of Mycotoxins and Food Science (LAMCA), School of Chemistry and Food, Federal University of Rio Grande, Av. Itália, km 8, s/n, Rio Grande 96203-900, Rio Grande do Sul, Brazil; (E.B.F.); (J.G.B.); (M.B.C.)
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Sdogati S, Pacini T, Bibi R, Caporali A, Verdini E, Orsini S, Ortenzi R, Pecorelli I. Co-Occurrence of Aflatoxin B 1, Zearalenone and Ochratoxin A in Feed and Feed Materials in Central Italy from 2018 to 2022. Foods 2024; 13:313. [PMID: 38254614 PMCID: PMC10815256 DOI: 10.3390/foods13020313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 01/12/2024] [Accepted: 01/16/2024] [Indexed: 01/24/2024] Open
Abstract
Mycotoxin contamination of feed and feed materials represent a serious health hazard. This study details the occurrence of aflatoxin B1 (AFB1), zearalenone (ZEN) and ochratoxin A (OTA) in 826 feed and 617 feed material samples, collected in two Italian Regions (Umbria and Marche) from 2018 to 2022 analyzed using a UPLC-FLD platform. The developed method was validated and accredited (ISO/IEC 17025) with satisfactory accuracy and precision data obtained in repeatability and intralaboratory reproducibility conditions. Feed had a higher incidence of contaminated samples (26%) with respect to feed materials (6%). AFB1 was found up to 0.1045 mg/kg in cattle feeds and 0.1234 mg/kg in maize; ZEN was detected up to 6.420 mg/kg in sheep feed while OTA was rarely reported and in lower concentrations (up to 0.085 mg/kg). Co-contamination of at least two mycotoxins was reported in 0.8% of the analyzed samples. The incidence of above maximum content/guidance level samples was 2% for feed and feed materials while almost 3-fold-higher for maize (5.8%) suggesting how mycotoxin contamination can affect some matrices more than others. Obtained data can be useful to improve official monitoring plans and therefore further raise awareness of this issue between agriculture stakeholders, healthcare entities and non-professionals.
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Affiliation(s)
- Stefano Sdogati
- Istituto Zooprofilattico Sperimentale dell’Umbria e delle Marche “Togo Rosati”, 06126 Perugia, Italy (I.P.)
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Badmos FO, Muhammad HL, Dabara A, Adefolalu F, Salubuyi S, Abdulkadir A, Oyetunji VT, Apeh DO, Muhammad HK, Mwanza M, Monjerezi M, Matumba L, Makun HA. Assessment of dietary exposure and levels of mycotoxins in sorghum from Niger State of Nigeria. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2024; 41:74-90. [PMID: 38109413 DOI: 10.1080/19440049.2023.2293998] [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: 09/11/2023] [Accepted: 12/06/2023] [Indexed: 12/20/2023]
Abstract
This study reports levels of mycotoxins in sorghum from Niger State, Nigeria, and provides a comprehensive assessment of their potential health risks by combining mycotoxin levels and dietary exposure assessment. A total of 240 samples of red and white sorghum were collected from both stores and markets across four microclimatic zones. Fungal species were identified using a dilution plate method. Aflatoxins (AFs), deoxynivalenol, nivalenol, and ochratoxin (OTA) were quantified using HPLC, whereas cyclopiazonic acid, fumonisins (FUMs) and zearalenone were quantified using ELISA. A. flavus and A. fumigatus were dominant fungal species followed by F. verticilloides, A. oryzae and P. verrucosum. Aflatoxins (mean: 29.97 µg/kg) were detected in all samples, whereas OTA (mean: 37.5 µg/kg) and FUMs (mean: 3269.8 µg/kg) were detected in 72% and 50% of the samples, respectively. Mycotoxins frequently co-occurred in binary mixtures of AFs + OTA and AFs + FUMs. Dietary exposure estimates were highest for FUMs at 230% of TDI and margin of exposures (MOEs) for both AFs and OTA (<10,000) indicating a potential risk associated with combined exposure to AFs and OTA. The Risk of hepatocellular carcinoma cases (HCC/year) attributable to AFs and OTA exposure from sorghum was estimated to be 5.99 × 105 and 0.24 × 105 cases for HBsAg + individuals based on 13.6% HBV incidence. Similarly, the HCC/year for AFs and OTA were assessed to be 3.59 × 105 and 0.14 × 105 at an 8.1% prevalence rate. Therefore, the results of this study demonstrate the high prevalence and dietary exposure to mycotoxins through sorghum consumption, raising public health and trade concerns.
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Affiliation(s)
- Fatimah Omolola Badmos
- Africa Centre of Excellence for Mycotoxin and Food Safety, Federal University of Technology Minna, Nigeria
- Department of Biochemistry, Federal University of Technology Minna, Nigeria
| | - Hadiza Lami Muhammad
- Africa Centre of Excellence for Mycotoxin and Food Safety, Federal University of Technology Minna, Nigeria
- Department of Biochemistry, Federal University of Technology Minna, Nigeria
| | - Achi Dabara
- Africa Centre of Excellence for Mycotoxin and Food Safety, Federal University of Technology Minna, Nigeria
- Department of Biochemistry, Federal University of Technology Minna, Nigeria
| | - Funmilola Adefolalu
- Africa Centre of Excellence for Mycotoxin and Food Safety, Federal University of Technology Minna, Nigeria
- Department of Biochemistry, Federal University of Technology Minna, Nigeria
| | - Susan Salubuyi
- Africa Centre of Excellence for Mycotoxin and Food Safety, Federal University of Technology Minna, Nigeria
- Department of Biochemistry, Federal University of Technology Minna, Nigeria
| | - Abdullahi Abdulkadir
- Africa Centre of Excellence for Mycotoxin and Food Safety, Federal University of Technology Minna, Nigeria
- Department of Biochemistry, Federal University of Technology Minna, Nigeria
| | - Victor Tope Oyetunji
- Africa Centre of Excellence for Mycotoxin and Food Safety, Federal University of Technology Minna, Nigeria
- Department of Biochemistry, Federal University of Technology Minna, Nigeria
| | - Daniel Ojochenemi Apeh
- Africa Centre of Excellence for Mycotoxin and Food Safety, Federal University of Technology Minna, Nigeria
- Department of Biochemistry, Federal University of Technology Minna, Nigeria
- Department of Biological Sciences, Confluence University of Science and Technology, Osara, Nigeria
| | - Hadiza Kudu Muhammad
- Africa Centre of Excellence for Mycotoxin and Food Safety, Federal University of Technology Minna, Nigeria
- Department of Biochemistry, Federal University of Technology Minna, Nigeria
| | - Mulunda Mwanza
- Africa Centre of Excellence for Mycotoxin and Food Safety, Federal University of Technology Minna, Nigeria
- Department of Animal Health, Northwest University, Mafikeng, South Africa
| | - Maurice Monjerezi
- Department of Animal Health, Northwest University, Mafikeng, South Africa
- Department of Chemistry and Chemical Engineering, University of Malawi, Zomba, Malawi
| | - Limbikani Matumba
- Centre for Resilient Agri-Food Systems (CRAFS), University of Malawi, Zomba, Malawi
- Food Technology and Nutrition Group-NRC, Lilongwe University of Agriculture and Natural Resources (LUANAR), Lilongwe, Malawi
| | - Hussaini Anthony Makun
- Africa Centre of Excellence for Mycotoxin and Food Safety, Federal University of Technology Minna, Nigeria
- Department of Biochemistry, Federal University of Technology Minna, Nigeria
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11
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Amminikutty N, Spalenza V, Jarriyawattanachaikul W, Badino P, Capucchio MT, Colombino E, Schiavone A, Greco D, D’Ascanio V, Avantaggiato G, Dabbou S, Nebbia C, Girolami F. Turmeric Powder Counteracts Oxidative Stress and Reduces AFB1 Content in the Liver of Broilers Exposed to the EU Maximum Levels of the Mycotoxin. Toxins (Basel) 2023; 15:687. [PMID: 38133191 PMCID: PMC10747922 DOI: 10.3390/toxins15120687] [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: 11/06/2023] [Revised: 12/04/2023] [Accepted: 12/05/2023] [Indexed: 12/23/2023] Open
Abstract
The most frequent adverse effects of AFB1 in chicken are low performance, the depression of the immune system, and a reduced quality of both eggs and meat, leading to economic losses. Since oxidative stress plays a major role in AFB1 toxicity, natural products are increasingly being used as an alternative to mineral binders to tackle AFB1 toxicosis in farm animals. In this study, an in vivo trial was performed by exposing broilers for 10 days to AFB1 at dietary concentrations approaching the maximum limits set by the EU (0.02 mg/kg feed) in the presence or absence of turmeric powder (TP) (included in the feed at 400 mg/kg). The aims were to evaluate (i) the effects of AFB1 on lipid peroxidation, antioxidant parameters, histology, and the expression of drug transporters and biotransformation enzymes in the liver; (ii) the hepatic accumulation of AFB1 and its main metabolites (assessed using an in-house-validated HPLC-FLD method); (iii) the possible modulation of the above parameters elicited by TP. Broilers exposed to AFB1 alone displayed a significant increase in lipid peroxidation in the liver, which was completely reverted by the concomitant administration of TP. Although no changes in glutathione levels and antioxidant enzyme activities were detected in any treatment group, AFB1 significantly upregulated and downregulated the mRNA expression of CYP2A6 and Nrf2, respectively. TP counteracted such negative effects and increased the hepatic gene expression of selected antioxidant enzymes (i.e., CAT and SOD2) and drug transporters (i.e., ABCG2), which were further enhanced in combination with AFB1. Moreover, both AFB1 and TP increased the mRNA levels of ABCC2 and ABCG2 in the duodenum. The latter changes might be implicated in the decrease in hepatic AFB1 to undetectable levels (
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Affiliation(s)
- Neenu Amminikutty
- Department of Veterinary Sciences, University of Torino, 10095 Grugliasco, Italy; (N.A.); (V.S.); (W.J.); (P.B.); (M.T.C.); (E.C.); (A.S.); (F.G.)
| | - Veronica Spalenza
- Department of Veterinary Sciences, University of Torino, 10095 Grugliasco, Italy; (N.A.); (V.S.); (W.J.); (P.B.); (M.T.C.); (E.C.); (A.S.); (F.G.)
| | - Watanya Jarriyawattanachaikul
- Department of Veterinary Sciences, University of Torino, 10095 Grugliasco, Italy; (N.A.); (V.S.); (W.J.); (P.B.); (M.T.C.); (E.C.); (A.S.); (F.G.)
| | - Paola Badino
- Department of Veterinary Sciences, University of Torino, 10095 Grugliasco, Italy; (N.A.); (V.S.); (W.J.); (P.B.); (M.T.C.); (E.C.); (A.S.); (F.G.)
| | - Maria Teresa Capucchio
- Department of Veterinary Sciences, University of Torino, 10095 Grugliasco, Italy; (N.A.); (V.S.); (W.J.); (P.B.); (M.T.C.); (E.C.); (A.S.); (F.G.)
| | - Elena Colombino
- Department of Veterinary Sciences, University of Torino, 10095 Grugliasco, Italy; (N.A.); (V.S.); (W.J.); (P.B.); (M.T.C.); (E.C.); (A.S.); (F.G.)
| | - Achille Schiavone
- Department of Veterinary Sciences, University of Torino, 10095 Grugliasco, Italy; (N.A.); (V.S.); (W.J.); (P.B.); (M.T.C.); (E.C.); (A.S.); (F.G.)
| | - Donato Greco
- Institute of Sciences of Food Production, Italian National Research Council, 70126 Bari, Italy; (D.G.); (V.D.); (G.A.)
| | - Vito D’Ascanio
- Institute of Sciences of Food Production, Italian National Research Council, 70126 Bari, Italy; (D.G.); (V.D.); (G.A.)
| | - Giuseppina Avantaggiato
- Institute of Sciences of Food Production, Italian National Research Council, 70126 Bari, Italy; (D.G.); (V.D.); (G.A.)
| | - Sihem Dabbou
- Center Agriculture Food Environment (C3A), University of Trento, 38010 San Michele all’Adige, Italy;
| | - Carlo Nebbia
- Department of Veterinary Sciences, University of Torino, 10095 Grugliasco, Italy; (N.A.); (V.S.); (W.J.); (P.B.); (M.T.C.); (E.C.); (A.S.); (F.G.)
| | - Flavia Girolami
- Department of Veterinary Sciences, University of Torino, 10095 Grugliasco, Italy; (N.A.); (V.S.); (W.J.); (P.B.); (M.T.C.); (E.C.); (A.S.); (F.G.)
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12
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Gómez M, Casado A, Caro I. Assessing the Effect of Flour (White or Whole-Grain) and Process (Direct or Par-Baked) on the Mycotoxin Content of Bread in Spain. Foods 2023; 12:4240. [PMID: 38231598 DOI: 10.3390/foods12234240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 11/19/2023] [Accepted: 11/21/2023] [Indexed: 01/19/2024] Open
Abstract
Bread is the staple food in many parts of the world. Like other foods, bread can contain mycotoxins resulting from microbial development throughout the supply chain (from field to table). In this study, baguette-style bread from small artisanal bakeries (direct) and supermarkets (par-baked loaves made by large companies) in Castile and Leon (Spain) was analyzed. Both white and whole-grain breads were collected from all retail outlets. The mycotoxins analyzed included deoxynivalenol (DON), ochratoxin (OTA), and aflatoxin B1 and B2 (AFB1, AFB2). All of the bread samples studied had mycotoxin levels below the maximum limits established by legislation. The presence of DON was higher than that of OTA, and AFB1 and AFB2 could not be quantified. Industrial breads had higher levels of DON and OTA (only in the whole-grain breads) compared to artisanal breads. However, no significant differences were found between white and industrial breads beyond those mentioned above. These results demonstrate that the established control chains ensure low mycotoxin content in bread of this type.
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Affiliation(s)
- Manuel Gómez
- Food Technology Area, College of Agricultural Engineering, University of Valladolid, 34071 Palencia, Spain
| | - Andrea Casado
- Food Technology Area, College of Agricultural Engineering, University of Valladolid, 34071 Palencia, Spain
- Food Science and Nutrition, Faculty of Medicine, University of Valladolid, 47005 Valladolid, Spain
| | - Irma Caro
- Food Science and Nutrition, Faculty of Medicine, University of Valladolid, 47005 Valladolid, Spain
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13
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Radić B, Radović R, Janić Hajnal E, Mandić A, Đekić S, Stojanović Z, Kos J. Moniliformin Occurrence in Serbian Maize over Four Years: Understanding Weather-Dependent Variability. Toxins (Basel) 2023; 15:634. [PMID: 37999497 PMCID: PMC10675640 DOI: 10.3390/toxins15110634] [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: 09/19/2023] [Revised: 10/16/2023] [Accepted: 10/18/2023] [Indexed: 11/25/2023] Open
Abstract
Moniliformin (MON) represents one of the most widespread emerging mycotoxins, whose presence in food and feed can potentially cause harmful effects on the health of both the public and animals. In order to investigate MON occurrence, a total of four hundred (n = 400) samples of unprocessed maize were sampled from different regions (Bačka, Banat, and Srem) of Serbia during a period of four years (2018-2021) and were analyzed using a validated liquid chromatography with tandem mass spectrometry (LC-MS/MS) method. The influence of regional differences and variations from year to year in terms of weather conditions on the occurrence of MON was also assessed. The obtained validation parameters indicated that the LC-MS/MS method is applicable to the determination of MON in maize samples. It can be observed from the acquired findings that all samples were contaminated with MON, while concentration levels varied between the samples, especially from different sampling years. The maize samples showed the greatest levels of MON concentration during the dry and hot climatic conditions experienced in 2021. In maize samples harvested in the period 2018-2020, the MON concentration levels detected were about two to three times lower compared to the year 2021. Additionally, a comprehensive investigation into the correlation between weather conditions and the occurrence of MON in maize grown in Serbia was undertaken by reviewing the outcomes of research undertaken in the past decade.
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Affiliation(s)
- Bojana Radić
- Institute of Food Technology in Novi Sad, University of Novi Sad, Bulevar Cara Lazara 1, 21000 Novi Sad, Serbia; (R.R.); (E.J.H.); (A.M.); (J.K.)
- Faculty of Technology Novi Sad, University of Novi Sad, Bulevar Cara Lazara 1, 21000 Novi Sad, Serbia;
| | - Radmila Radović
- Institute of Food Technology in Novi Sad, University of Novi Sad, Bulevar Cara Lazara 1, 21000 Novi Sad, Serbia; (R.R.); (E.J.H.); (A.M.); (J.K.)
| | - Elizabet Janić Hajnal
- Institute of Food Technology in Novi Sad, University of Novi Sad, Bulevar Cara Lazara 1, 21000 Novi Sad, Serbia; (R.R.); (E.J.H.); (A.M.); (J.K.)
| | - Anamarija Mandić
- Institute of Food Technology in Novi Sad, University of Novi Sad, Bulevar Cara Lazara 1, 21000 Novi Sad, Serbia; (R.R.); (E.J.H.); (A.M.); (J.K.)
| | - Sanja Đekić
- Department of Analytical Chemistry, Faculty of Chemistry, University of Belgrade, Sudentski Trg 12-16, 11158 Belgrade, Serbia;
| | - Zorica Stojanović
- Faculty of Technology Novi Sad, University of Novi Sad, Bulevar Cara Lazara 1, 21000 Novi Sad, Serbia;
| | - Jovana Kos
- Institute of Food Technology in Novi Sad, University of Novi Sad, Bulevar Cara Lazara 1, 21000 Novi Sad, Serbia; (R.R.); (E.J.H.); (A.M.); (J.K.)
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14
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Smaoui S, D’Amore T, Tarapoulouzi M, Agriopoulou S, Varzakas T. Aflatoxins Contamination in Feed Commodities: From Occurrence and Toxicity to Recent Advances in Analytical Methods and Detoxification. Microorganisms 2023; 11:2614. [PMID: 37894272 PMCID: PMC10609407 DOI: 10.3390/microorganisms11102614] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 10/18/2023] [Accepted: 10/21/2023] [Indexed: 10/29/2023] Open
Abstract
Synthesized by the secondary metabolic pathway in Aspergilli, aflatoxins (AFs) cause economic and health issues and are culpable for serious harmful health and economic matters affecting consumers and global farmers. Consequently, the detection and quantification of AFs in foods/feeds are paramount from food safety and security angles. Nowadays, incessant attempts to develop sensitive and rapid approaches for AFs identification and quantification have been investigated, worldwide regulations have been established, and the safety of degrading enzymes and reaction products formed in the AF degradation process has been explored. Here, occurrences in feed commodities, innovative methods advanced for AFs detection, regulations, preventive strategies, biological detoxification, removal, and degradation methods were deeply reviewed and presented. This paper showed a state-of-the-art and comprehensive review of the recent progress on AF contamination in feed matrices with the intention of inspiring interests in both academia and industry.
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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 3029, Tunisia
| | - Teresa D’Amore
- IRCCS CROB, Centro di Riferimento Oncologico della Basilicata, 85028 Rionero in Vulture, Italy;
| | - Maria Tarapoulouzi
- Department of Chemistry, Faculty of Pure and Applied Science, University of Cyprus, P.O. Box 20537, Nicosia CY-1678, Cyprus;
| | - Sofia Agriopoulou
- Department of Food Science and Technology, University of the Peloponnese, Antikalamos, 24100 Kalamata, Greece;
| | - Theodoros Varzakas
- Department of Food Science and Technology, University of the Peloponnese, Antikalamos, 24100 Kalamata, Greece;
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15
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González-Curbelo MÁ, Kabak B. Occurrence of Mycotoxins in Dried Fruits Worldwide, with a Focus on Aflatoxins and Ochratoxin A: A Review. Toxins (Basel) 2023; 15:576. [PMID: 37756002 PMCID: PMC10537527 DOI: 10.3390/toxins15090576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 09/12/2023] [Accepted: 09/13/2023] [Indexed: 09/28/2023] Open
Abstract
Dried fruits are popular and nutritious snacks consumed worldwide due to their long shelf life and concentrated nutrient content. However, fruits can be contaminated with various toxigenic fungal species during different stages, including cultivation, harvesting, processing, drying, and storage. Consequently, these products may contain high levels of mycotoxins. This risk is particularly pronounced in developed countries due to the impact of climate change. Several factors contribute to mycotoxin production, including the type of fruit, geographical location, climate conditions, harvest treatments, and storage management practices. The main mycotoxins in dried fruits are aflatoxins (AFs) and ochratoxin A (OTA), which can induce human health problems and economic losses. Mycotoxin contamination can vary significantly depending on the geographic origin of dried fruits (vine fruits, figs, dates, apricots, prunes, and mulberries). The aim of this review was to fill the knowledge gap by consolidating data from various regions to understand the global picture and identify regions with higher contamination risks. By consolidating research from various origins and stages of the supply chain, the review intends to shed light on potential contamination events during pre-harvest, drying, storage, and trading, while also highlighting the effects of storage conditions and climate change on mycotoxin contamination.
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Affiliation(s)
- Miguel Ángel González-Curbelo
- Departamento de Ciencias Básicas, Facultad de Ingeniería, Universidad EAN, Calle 79 no 11-45, Bogotá 110221, Colombia
| | - Bulent Kabak
- Department of Food Engineering, Faculty of Engineering, Hitit University, Corum 19030, Turkey
- Biotechnology Laboratory, Machinery and Manufacturing Technology Application and Research Center, Hitit University, Corum 19030, Turkey
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16
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Jesmin R, Cary JW, Lebar MD, Majumdar R, Gummadidala PM, Dias T, Chandler S, Basu P, Decho AW, Keller NP, Chanda A. Vibrio gazogenes-dependent disruption of aflatoxin biosynthesis in Aspergillus flavus: the connection with endosomal uptake and hyphal morphogenesis. Front Microbiol 2023; 14:1208961. [PMID: 37744918 PMCID: PMC10516221 DOI: 10.3389/fmicb.2023.1208961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 08/07/2023] [Indexed: 09/26/2023] Open
Abstract
Aflatoxins, a family of fungal secondary metabolites, are toxic and carcinogenic compounds that pose an enormous threat to global food safety and agricultural sustainability. Specifically agricultural products in African, Southeast Asian and hot and humid regions of American countries suffer most damage from aflatoxin producing molds due to the ideal climate conditions promoting their growth. Our recent studies suggest that Vibrio gazogenes (Vg), an estuarine bacterium non-pathogenic to plants and humans, can significantly inhibit aflatoxin biosynthesis in the producers. In this study, we investigated the mechanism underlying Vg-dependent aflatoxin inhibition using the prominent aflatoxin producer, Aspergillus flavus. We show that aflatoxin inhibition upon Vg treatment was associated with fungal uptake of Vg-prodigiosin, a red pigment, which was consistently visible inside fungal hyphae during treatment. The association of prodigiosin with aflatoxin inhibition was further evident as Serratia marcescens, another prodigiosin producer, significantly inhibited aflatoxin, while non-producers like Escherichia coli, Staphylococcus aureus, Vibrio harveyi, and Vibrio fischeri did not. Also, pure prodigiosin significantly inhibited aflatoxin biosynthesis. Endocytosis inhibitors, filipin and natamycin, reduced the Vg-prodigiosin uptake by the fungus leading to a significant increase in aflatoxin production, suggesting that uptake is endocytosis-dependent. The Vg treatment also reduced hyphal fusion (>98% inhibition) and branching, which are both endosome-dependent processes. Our results, therefore, collectively support our theory that Vg-associated aflatoxin inhibition is mediated by an endocytosis-dependent uptake of Vg-prodigiosin, which possibly leads to a disruption of normal endosomal functions.
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Affiliation(s)
| | - Jeffrey W. Cary
- Food and Feed Safety Research Unit, USDA/ARS, Southern Regional Research Center, New Orleans, LA, United States
| | - Matthew D. Lebar
- Food and Feed Safety Research Unit, USDA/ARS, Southern Regional Research Center, New Orleans, LA, United States
| | - Rajtilak Majumdar
- Northwest Irrigation and Soils Research, United States Department of Agriculture, Kimberly, ID, United States
| | - Phani M. Gummadidala
- University of North Carolina School of Medicine, Chapell Hill, NC, United States
| | - Travis Dias
- University of South Carolina School of Medicine, Greenville, NC, United States
| | - Savannah Chandler
- Department of Environmental Health Sciences, University of South Carolina, Columbia, SC, United States
| | - Paramita Basu
- New York College of Podiatric Medicine, New York, NY, United States
| | - Alan W. Decho
- Department of Environmental Health Sciences, University of South Carolina, Columbia, SC, United States
| | - Nancy P. Keller
- Department of Medical Microbiology and Immunology, Department of Plant Pathology, University of Wisconsin-Madison, Madison, WI, United States
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