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Deng X, Ma B, Gong Y, Li J, Zhou Y, Xu T, Hao P, Sun K, Lv Z, Yu X, Zhang M. Advances in Aptamer-Based Conjugate Recognition Techniques for the Detection of Small Molecules in Food. Foods 2024; 13:1749. [PMID: 38890976 PMCID: PMC11172347 DOI: 10.3390/foods13111749] [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: 04/16/2024] [Revised: 05/23/2024] [Accepted: 05/30/2024] [Indexed: 06/20/2024] Open
Abstract
Small molecules are significant risk factors for causing food safety issues, posing serious threats to human health. Sensitive screening for hazards is beneficial for enhancing public security. However, traditional detection methods are unable to meet the requirements for the field screening of small molecules. Therefore, it is necessary to develop applicable methods with high levels of sensitivity and specificity to identify the small molecules. Aptamers are short-chain nucleic acids that can specifically bind to small molecules. By utilizing aptamers to enhance the performance of recognition technology, it is possible to achieve high selectivity and sensitivity levels when detecting small molecules. There have been several varieties of aptamer target recognition techniques developed to improve the ability to detect small molecules in recent years. This review focuses on the principles of detection platforms, classifies the conjugating methods between small molecules and aptamers, summarizes advancements in aptamer-based conjugate recognition techniques for the detection of small molecules in food, and seeks to provide emerging powerful tools in the field of point-of-care diagnostics.
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Affiliation(s)
- Xin Deng
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, China Jiliang University, Hangzhou 310018, China; (X.D.); (B.M.); (Y.G.); (P.H.); (K.S.); (X.Y.)
| | - Biao Ma
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, China Jiliang University, Hangzhou 310018, China; (X.D.); (B.M.); (Y.G.); (P.H.); (K.S.); (X.Y.)
| | - Yunfei Gong
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, China Jiliang University, Hangzhou 310018, China; (X.D.); (B.M.); (Y.G.); (P.H.); (K.S.); (X.Y.)
| | - Jiali Li
- Hangzhou Quickgene Sci-Tech. Co., Ltd., Hangzhou 310018, China;
| | - Yuxin Zhou
- College of Life Science, China Jiliang University, Hangzhou 310018, China; (Y.Z.); (T.X.)
| | - Tianran Xu
- College of Life Science, China Jiliang University, Hangzhou 310018, China; (Y.Z.); (T.X.)
| | - Peiying Hao
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, China Jiliang University, Hangzhou 310018, China; (X.D.); (B.M.); (Y.G.); (P.H.); (K.S.); (X.Y.)
| | - Kai Sun
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, China Jiliang University, Hangzhou 310018, China; (X.D.); (B.M.); (Y.G.); (P.H.); (K.S.); (X.Y.)
| | - Zhiyong Lv
- Dept Qual Managemet, Inner Mongolia Yili Grp. Co., Ltd., Hohhot 151100, China;
| | - Xiaoping Yu
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, China Jiliang University, Hangzhou 310018, China; (X.D.); (B.M.); (Y.G.); (P.H.); (K.S.); (X.Y.)
| | - Mingzhou Zhang
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, China Jiliang University, Hangzhou 310018, China; (X.D.); (B.M.); (Y.G.); (P.H.); (K.S.); (X.Y.)
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Ben Hassouna K, Hamed AM, Salah-Abbès JB, Chaieb K, Abbès S, García-Campaña AM, Gámiz-Gracia L. Mycotoxin Occurrence in Milk and Durum Wheat Samples from Tunisia Using Dispersive Liquid-Liquid Microextraction and Liquid Chromatography with Fluorescence Detection. Toxins (Basel) 2023; 15:633. [PMID: 37999496 PMCID: PMC10675211 DOI: 10.3390/toxins15110633] [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: 09/13/2023] [Revised: 10/21/2023] [Accepted: 10/24/2023] [Indexed: 11/25/2023] Open
Abstract
Food and feed contamination with mycotoxins is a major public health concern. Humans and animals are exposed to these toxins by consuming contaminated products throughout their lives. In this study, a method based on dispersive liquid-liquid microextraction (DLLME), followed by liquid chromatography with fluorescence detection (LC-FLD), was validated for the determination of aflatoxins (AFs) M1, B1, B2, G1, G2, zearalenone (ZEN), and ochratoxin A (OTA). The method was applied to 150 raw cow milk samples and 90 market durum wheat samples from two Tunisian climatic regions: the littoral region (Mahdia) and the continental region (Béja). This work was carried out to obtain more surveillance data to support rapid initiatives to assure safe foods and protect consumer health and to estimate the daily exposure of the Tunisian population consuming those products. AFG2 and OTA were found in wheat with incidences of 54.4 and 11.1%, respectively. On the other side, milk samples were contaminated by AFG2, AFB1, and AFB2 with incidences of 8.7%, 2.0%, and 0.67%, respectively. Some of the samples showed OTA concentrations above the maximum limit allowed by the European Union, which represents a health risk for consumers in Tunisia, where no legislation exists about the maximum content of mycotoxins in food.
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Affiliation(s)
- Khouloud Ben Hassouna
- Laboratory of Genetic, Biodiversity and Bio-Resources Valorisation, High Institute of Biotechnology of Monastir, University of Monastir, Monastir 5000, Tunisia; (K.B.H.); (S.A.)
- Laboratory of Analysis, Treatment and Valorization of Environmental Pollutants and Products, Faculty of Pharmacy, University of Monastir, Monastir 5000, Tunisia;
| | - Ahmed M. Hamed
- Dairy Science Department, Faculty of Agriculture, Cairo University, Giza 12613, Egypt;
| | - Jalila Ben Salah-Abbès
- Laboratory of Genetic, Biodiversity and Bio-Resources Valorisation, High Institute of Biotechnology of Monastir, University of Monastir, Monastir 5000, Tunisia; (K.B.H.); (S.A.)
| | - Kamel Chaieb
- Laboratory of Analysis, Treatment and Valorization of Environmental Pollutants and Products, Faculty of Pharmacy, University of Monastir, Monastir 5000, Tunisia;
| | - Samir Abbès
- Laboratory of Genetic, Biodiversity and Bio-Resources Valorisation, High Institute of Biotechnology of Monastir, University of Monastir, Monastir 5000, Tunisia; (K.B.H.); (S.A.)
| | - Ana M. García-Campaña
- Department of Analytical Chemistry, Faculty of Sciences, University of Granada, 18071 Granada, Spain
| | - Laura Gámiz-Gracia
- Department of Analytical Chemistry, Faculty of Sciences, University of Granada, 18071 Granada, Spain
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Lima da Silva J, Lombardi S, Castaldo L, Morelli E, Garda-Buffon J, Izzo L, Ritieni A. Multi-Mycotoxin Analysis in Italian Grains Using Ultra-High-Performance Chromatography Coupled to Quadrupole Orbitrap Mass Spectrometry. Toxins (Basel) 2023; 15:562. [PMID: 37755988 PMCID: PMC10535900 DOI: 10.3390/toxins15090562] [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: 08/15/2023] [Revised: 09/02/2023] [Accepted: 09/06/2023] [Indexed: 09/28/2023] Open
Abstract
Mycotoxins are a major source of contamination in cereals, posing risks to human health and causing significant economic losses to the industry. A comprehensive strategy for the analysis of 21 mycotoxins in Italian cereal grain samples (n = 200) was developed using a simple and quick sample preparation method combined with ultra-high-performance liquid chromatography coupled with quadrupole Orbitrap high-resolution mass spectrometry (UHPLC Q-Orbitrap HRMS). The proposed method showed some advantages, such as multi-mycotoxin analyses with simple sample preparation, fast determination, and high sensitivity. The analysis of the sample revealed the presence of 11 mycotoxins, with α-zearalenol being the most frequently detected, while deoxynivalenol exhibited the highest contamination level. Furthermore, co-occurrence was identified in 15.5% of the samples under analysis. Among these, 13% of the samples reported the simultaneous presence of two mycotoxins, while 2.5% showed the co-occurrence of three mycotoxins. Currently, there has been a renewed interest in guaranteeing the quality and safety of products intended for human consumption. This study holds significant value due to its ability to simultaneously detect multiple mycotoxins within a complex matrix. Furthermore, it provides findings regarding the occurrence and co-occurrence of emerging mycotoxins that currently lack regulation under the existing European Commission Regulation.
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Affiliation(s)
- Juliane Lima da Silva
- School of Chemistry and Food, Federal University of Rio Grande, Av. Itália, Km 8, Rio Grande 96203-900, RS, Brazil; (J.L.d.S.); (J.G.-B.)
| | - Sonia Lombardi
- Department of Pharmacy, University of Naples Federico II, Via Domenico Montesano 49, 80131 Naples, Italy; (L.C.); (E.M.)
| | - Luigi Castaldo
- Department of Pharmacy, University of Naples Federico II, Via Domenico Montesano 49, 80131 Naples, Italy; (L.C.); (E.M.)
| | - Elena Morelli
- Department of Pharmacy, University of Naples Federico II, Via Domenico Montesano 49, 80131 Naples, Italy; (L.C.); (E.M.)
| | - Jaqueline Garda-Buffon
- School of Chemistry and Food, Federal University of Rio Grande, Av. Itália, Km 8, Rio Grande 96203-900, RS, Brazil; (J.L.d.S.); (J.G.-B.)
| | - Luana Izzo
- Department of Pharmacy, University of Naples Federico II, Via Domenico Montesano 49, 80131 Naples, Italy; (L.C.); (E.M.)
| | - Alberto Ritieni
- Department of Pharmacy, University of Naples Federico II, Via Domenico Montesano 49, 80131 Naples, Italy; (L.C.); (E.M.)
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Hassouna KB, Salah-Abbès JB, Chaieb K, Abbès S, Ferrer E, Martí-Quijal FJ, Pallarés N, Berrada H. The Occurrence and Health Risk Assessment of Aflatoxin M1 in Raw Cow Milk Collected from Tunisia during a Hot Lactating Season. Toxins (Basel) 2023; 15:518. [PMID: 37755944 PMCID: PMC10537819 DOI: 10.3390/toxins15090518] [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: 07/04/2023] [Revised: 07/28/2023] [Accepted: 08/22/2023] [Indexed: 09/28/2023] Open
Abstract
Milk is a staple food that is essential for human nutrition because of its high nutrient content and health benefits. However, it is susceptible to being contaminated by Aflatoxin M1 (AFM1), which is a toxic metabolite of Aflatoxin B1 (AFB1) presented in cow feeds. This research investigated AFM1 in Tunisian raw cow milk samples. A total of 122 samples were collected at random from two different regions in 2022 (Beja and Mahdia). AFM1 was extracted from milk using the QuEChERS method, and contamination amounts were determined using liquid chromatography (HPLC) coupled with fluorescence detection (FD). Good recoveries were shown with intra-day and inter-day precisions of 97 and 103%, respectively, and detection and quantification levels of 0.003 and 0.01 µg/L, respectively. AFM1 was found in 97.54% of the samples, with amounts varying from values below the LOQ to 197.37 µg/L. Lower AFM1 was observed in Mahdia (mean: 39.37 µg/L), respectively. In positive samples, all AFM1 concentrations exceeded the EU maximum permitted level (0.050 µg/L) for AFM1 in milk. In Tunisia, a maximum permitted level for AFM1 in milk and milk products has not been established. The risk assessment of AFM1 was also determined. Briefly, the estimated intake amount of AFM1 by Tunisian adults through raw cow milk consumption was 0.032 µg/kg body weight/day. The Margin of Exposure (MOE) values obtained were lower than 10,000. According to the findings, controls as well as the establishment of regulations for AFM1 in milk are required in Tunisia.
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Affiliation(s)
- Khouloud Ben Hassouna
- Laboratory of Genetic, Biodiversity and Bio-Resources Valorisation, University of Monastir, Monastir 5000, Tunisia; (K.B.H.); (J.B.S.-A.); (S.A.)
- Laboratory of Analysis, Treatment and Valorization of Environmental Pollutants and Products, Faculty of Pharmacy, Monastir University, Monastir 5000, Tunisia
| | - Jalila Ben Salah-Abbès
- Laboratory of Genetic, Biodiversity and Bio-Resources Valorisation, University of Monastir, Monastir 5000, Tunisia; (K.B.H.); (J.B.S.-A.); (S.A.)
| | - Kamel Chaieb
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
| | - Samir Abbès
- Laboratory of Genetic, Biodiversity and Bio-Resources Valorisation, University of Monastir, Monastir 5000, Tunisia; (K.B.H.); (J.B.S.-A.); (S.A.)
- High Institute of Biotechnology of Béja, University of Jendouba, Jendouba 8189, Tunisia
| | - Emilia Ferrer
- Nutrition and Food Science Area, Preventive Medicine and Public Health, Food Science, Toxicology and Forensic Medicine Department, Faculty of Pharmacy, Universitat de València, Burjassot, 46100 València, Spain; (E.F.); (F.J.M.-Q.); (H.B.)
| | - Francisco J. Martí-Quijal
- Nutrition and Food Science Area, Preventive Medicine and Public Health, Food Science, Toxicology and Forensic Medicine Department, Faculty of Pharmacy, Universitat de València, Burjassot, 46100 València, Spain; (E.F.); (F.J.M.-Q.); (H.B.)
| | - Noelia Pallarés
- Nutrition and Food Science Area, Preventive Medicine and Public Health, Food Science, Toxicology and Forensic Medicine Department, Faculty of Pharmacy, Universitat de València, Burjassot, 46100 València, Spain; (E.F.); (F.J.M.-Q.); (H.B.)
| | - Houda Berrada
- Nutrition and Food Science Area, Preventive Medicine and Public Health, Food Science, Toxicology and Forensic Medicine Department, Faculty of Pharmacy, Universitat de València, Burjassot, 46100 València, Spain; (E.F.); (F.J.M.-Q.); (H.B.)
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Nadimi M, Hawley E, Liu J, Hildebrand K, Sopiwnyk E, Paliwal J. Enhancing traceability of wheat quality through the supply chain. Compr Rev Food Sci Food Saf 2023; 22:2495-2522. [PMID: 37078119 DOI: 10.1111/1541-4337.13150] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 03/02/2023] [Accepted: 03/16/2023] [Indexed: 04/21/2023]
Abstract
With the growing global population, the need for food is expected to grow tremendously in the next few decades. One of the key tools to address such growing food demand is minimizing grain losses and optimizing food processing operations. Hence, several research studies are underway to reduce grain losses/degradation at the farm (upon harvest) and later during the milling and baking processes. However, less attention has been paid to changes in grain quality between harvest and milling. This paper aims to address this knowledge gap and discusses possible strategies for preserving grain quality (for Canadian wheat in particular) during unit operations at primary, process, or terminal elevators. To this end, the importance of wheat flour quality metrics is briefly described, followed by a discussion on the effect of grain properties on such quality parameters. This work also explores how drying, storage, blending, and cleaning, as some of the common post-harvest unit operations, could affect grain's end-product quality. Finally, an overview of the available techniques for grain quality monitoring is provided, followed by a discussion on existing gaps and potential solutions for quality traceability throughout the wheat supply chain.
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Affiliation(s)
- Mohammad Nadimi
- Department of Biosystems Engineering, University of Manitoba, Winnipeg, Manitoba, Canada
| | | | - Jing Liu
- Department of Biosystems Engineering, University of Manitoba, Winnipeg, Manitoba, Canada
| | | | | | - Jitendra Paliwal
- Department of Biosystems Engineering, University of Manitoba, Winnipeg, Manitoba, Canada
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Ayeni KI, Sulyok M, Krska R, Warth B, Ezekiel CN. Mycotoxins in complementary foods consumed by infants and young children within the first 18 months of life. Food Control 2022. [DOI: 10.1016/j.foodcont.2022.109328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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Krausová M, Ayeni KI, Wisgrill L, Ezekiel CN, Braun D, Warth B. Trace analysis of emerging and regulated mycotoxins in infant stool by LC-MS/MS. Anal Bioanal Chem 2021; 414:7503-7516. [PMID: 34932144 PMCID: PMC9482899 DOI: 10.1007/s00216-021-03803-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 11/12/2021] [Accepted: 11/23/2021] [Indexed: 11/30/2022]
Abstract
Infants are sensitive to negative effects caused by food contaminants such as mycotoxins. To date, analytical methods assessing mycotoxin mixture exposure in infant stool are absent. Herein, we present a novel multi-mycotoxin LC-MS/MS assay capable of detecting 30+ analytes including the regulated mycotoxin classes (aflatoxins, trichothecenes, ochratoxins, zearalenone, citrinin), emerging Alternaria and Fusarium toxins, and several key metabolites. Sample preparation consisted of a ‘dilute, filter, and shoot’ approach. The method was in-house validated and demonstrated that 25 analytes fulfilled all required criteria despite the high diversity of chemical structures included. Extraction recoveries for most of the analytes were in the range of 65–114% with standard deviations below 30% and limits of detection between 0.03 and 11.3 ng/g dry weight. To prove the methods’ applicability, 22 human stool samples from premature Austrian infants (n = 12) and 12-month-old Nigerian infants (n = 10) were analyzed. The majority of the Nigerian samples were contaminated with alternariol monomethyl ether (8/10) and fumonisin B1 (8/10), while fumonisin B2 and citrinin were quantified in some samples. No mycotoxins were detected in any of the Austrian samples. The method can be used for sensitive human biomonitoring (HBM) purposes and to support exposure and, potentially, risk assessment of mycotoxins. Moreover, it allows for investigating potential associations between toxicant exposure and the infants’ developing gut microbiome.
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Affiliation(s)
- Magdaléna Krausová
- Faculty of Chemistry, Department of Food Chemistry and Toxicology, University of Vienna, Währinger Straße 38, 1090, Vienna, Austria
| | - Kolawole I Ayeni
- Faculty of Chemistry, Department of Food Chemistry and Toxicology, University of Vienna, Währinger Straße 38, 1090, Vienna, Austria.,Department of Microbiology, Babcock University, Ilishan Remo, Ogun State, Nigeria
| | - Lukas Wisgrill
- Division of Neonatology, Pediatric Intensive Care and Neuropediatrics, Comprehensive Center for Pediatrics, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna, 1090, Vienna, Austria
| | - Chibundu N Ezekiel
- Department of Microbiology, Babcock University, Ilishan Remo, Ogun State, Nigeria
| | - Dominik Braun
- Faculty of Chemistry, Department of Food Chemistry and Toxicology, University of Vienna, Währinger Straße 38, 1090, Vienna, Austria
| | - Benedikt Warth
- Faculty of Chemistry, Department of Food Chemistry and Toxicology, University of Vienna, Währinger Straße 38, 1090, Vienna, Austria.
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Ezekiel CN, Ayeni KI, Akinyemi MO, Sulyok M, Oyedele OA, Babalola DA, Ogara IM, Krska R. Dietary Risk Assessment and Consumer Awareness of Mycotoxins among Household Consumers of Cereals, Nuts and Legumes in North-Central Nigeria. Toxins (Basel) 2021; 13:635. [PMID: 34564639 PMCID: PMC8472633 DOI: 10.3390/toxins13090635] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 09/03/2021] [Accepted: 09/06/2021] [Indexed: 12/28/2022] Open
Abstract
This study characterized the health risks due to the consumption of mycotoxin-contaminated foods and assessed the consumer awareness level of mycotoxins in households in two north-central Nigerian states during the harvest and storage seasons of 2018. Twenty-six mycotoxins and 121 other microbial and plant metabolites were quantified by LC-MS/MS in 250 samples of cereals, nuts and legumes. Aflatoxins were detected in all food types (cowpea, maize, peanut and sorghum) except in millet. Aflatoxin B1 was the most prevalent mycotoxin in peanut (64%) and rice (57%), while fumonisin B1 occurred most in maize (93%) and beauvericin in sorghum (71%). The total aflatoxin concentration was highest in peanut (max: 8422 µg/kg; mean: 1281 µg/kg) and rice (max: 955 µg/kg; mean: 94 µg/kg), whereas the totals of the B-type fumonisins and citrinin were highest in maize (max: 68,204 µg/kg; mean: 2988 µg/kg) and sorghum (max: 1335 µg/kg; mean: 186 µg/kg), respectively. Citrinin levels also reached 51,195 µg/kg (mean: 2343 µg/kg) in maize. Aflatoxin and citrinin concentrations in maize were significantly (p < 0.05) higher during storage than at harvest. The estimated chronic exposures to aflatoxins, citrinin and fumonisins were high, resulting in as much as 247 new liver cancer cases/year/100,000 population and risks of nephrotoxicity and esophageal cancer, respectively. Children who consumed the foods were the most vulnerable. Mycotoxin co-occurrence was evident, which could increase the health risk of the outcomes. Awareness of mycotoxin issues was generally low among the households.
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Affiliation(s)
- Chibundu N. Ezekiel
- Department of Microbiology, Babcock University, Ilishan Remo 121103, Ogun State, Nigeria; (K.I.A.); (M.O.A.); (O.A.O.)
- Institute of Bioanalytics and Agro-Metabolomics, Department of Agrobiotechnology (IFA-Tulln), University of Natural Resources and Life Sciences Vienna (BOKU), Konrad Lorenz-Str. 20, A-3430 Tulln, Austria; (M.S.); (R.K.)
| | - Kolawole I. Ayeni
- Department of Microbiology, Babcock University, Ilishan Remo 121103, Ogun State, Nigeria; (K.I.A.); (M.O.A.); (O.A.O.)
| | - Muiz O. Akinyemi
- Department of Microbiology, Babcock University, Ilishan Remo 121103, Ogun State, Nigeria; (K.I.A.); (M.O.A.); (O.A.O.)
| | - Michael Sulyok
- Institute of Bioanalytics and Agro-Metabolomics, Department of Agrobiotechnology (IFA-Tulln), University of Natural Resources and Life Sciences Vienna (BOKU), Konrad Lorenz-Str. 20, A-3430 Tulln, Austria; (M.S.); (R.K.)
| | - Oluwawapelumi A. Oyedele
- Department of Microbiology, Babcock University, Ilishan Remo 121103, Ogun State, Nigeria; (K.I.A.); (M.O.A.); (O.A.O.)
| | - Daniel A. Babalola
- Department of Agriculture and Industrial Technology, Babcock University, Ilishan Remo 121103, Ogun State, Nigeria;
| | - Isaac M. Ogara
- Faculty of Agriculture, Lafia Campus, Nasarawa State University, Keffi 950101, Nasarawa State, Nigeria;
| | - Rudolf Krska
- Institute of Bioanalytics and Agro-Metabolomics, Department of Agrobiotechnology (IFA-Tulln), University of Natural Resources and Life Sciences Vienna (BOKU), Konrad Lorenz-Str. 20, A-3430 Tulln, Austria; (M.S.); (R.K.)
- Institute for Global Food Security, School of Biological Sciences, Queen’s University Belfast, University Road, Belfast BT7 1NN, UK
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Onyeaka H, Ekwebelem OC, Eze UA, Onwuka QI, Aleke J, Nwaiwu O, Chionuma JO. Improving Food Safety Culture in Nigeria: A Review of Practical Issues. Foods 2021; 10:foods10081878. [PMID: 34441654 PMCID: PMC8394198 DOI: 10.3390/foods10081878] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Revised: 07/30/2021] [Accepted: 08/07/2021] [Indexed: 01/13/2023] Open
Abstract
As a developing nation and the most populous nation in Africa, Nigeria has enormous challenges connected with food safety culture. To produce and provide safe, secure and nutritious food, consumers and food businesses must abide by a set of shared values known as food safety culture. In Nigeria, food safety culture is a complex subject due to Nigeria’s heterogeneous and diverse nature, as demonstrated by its over 250 ethnic groups. As Nigeria becomes more urbanized and incomes continue to fluctuate at robust rates, few Nigerians are conscious of food safety issues. In addition, oversight from government regulators around food safety require improvement. Public engagement in food safety issues has not witnessed a promising trajectory in recent years. In this article, we provide a review of the food safety culture in Nigeria and its role and influence on various cases of food safety issues in Nigeria. Of interest to this paper are studies exploring consumer and food handler perceptions and behavior regarding food safety. In addition, keen attention is devoted to areas that are in need of additional research to help address practical and on-the-ground challenges associated with Nigeria’s food safety practices. This article suggests that improving food safety culture in Nigeria requires both applying the best management and communication approaches in different regions and understanding the local food safety practices.
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Affiliation(s)
- Helen Onyeaka
- School of Chemical Engineering, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
- Correspondence: ; Tel.: +44-(0)-121-414-5292
| | - Osmond C. Ekwebelem
- Faculty of Biological Sciences, University of Nigeria, Nsukka 410001, Nigeria; (O.C.E.); (J.A.)
| | - Ukpai A. Eze
- School of Life Sciences, Faculty of Health and Life Sciences, Coventry University, Coventry CV1 5FB, UK;
| | - Queeneth I. Onwuka
- Department of Food Science and Technology, Abia State University, Uturu 441101, Nigeria;
| | - Job Aleke
- Faculty of Biological Sciences, University of Nigeria, Nsukka 410001, Nigeria; (O.C.E.); (J.A.)
| | - Ogueri Nwaiwu
- Ingenuity Lab, Jubilee Campus, University of Nottingham, Nottingham NG8 1BB, UK;
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Comparative Analysis of Machine Learning Methods to Predict Growth of F. sporotrichioides and Production of T-2 and HT-2 Toxins in Treatments with Ethylene-Vinyl Alcohol Films Containing Pure Components of Essential Oils. Toxins (Basel) 2021; 13:toxins13080545. [PMID: 34437416 PMCID: PMC8402422 DOI: 10.3390/toxins13080545] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 07/31/2021] [Indexed: 11/30/2022] Open
Abstract
The efficacy of ethylene-vinyl alcohol copolymer films (EVOH) incorporating the essential oil components cinnamaldehyde (CINHO), citral (CIT), isoeugenol (IEG), or linalool (LIN) to control growth rate (GR) and production of T-2 and HT-2 toxins by Fusarium sporotrichioides cultured on oat grains under different temperature (28, 20, and 15 °C) and water activity (aw) (0.99 and 0.96) regimes was assayed. GR in controls/treatments usually increased with increasing temperature, regardless of aw, but no significant differences concerning aw were found. Toxin production decreased with increasing temperature. The effectiveness of films to control fungal GR and toxin production was as follows: EVOH-CIT > EVOH-CINHO > EVOH-IEG > EVOH-LIN. With few exceptions, effective doses of EVOH-CIT, EVOH-CINHO, and EVOH-IEG films to reduce/inhibit GR by 50%, 90%, and 100% (ED50, ED90, and ED100) ranged from 515 to 3330 µg/culture in Petri dish (25 g oat grains) depending on film type, aw, and temperature. ED90 and ED100 of EVOH-LIN were >3330 µg/fungal culture. The potential of several machine learning (ML) methods to predict F. sporotrichioides GR and T-2 and HT-2 toxin production under the assayed conditions was comparatively analyzed. XGBoost and random forest attained the best performance, support vector machine and neural network ranked third or fourth depending on the output, while multiple linear regression proved to be the worst.
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Ekpakpale DO, Kraak B, Meijer M, Ayeni KI, Houbraken J, Ezekiel CN. Fungal Diversity and Aflatoxins in Maize and Rice Grains and Cassava-Based Flour (Pupuru) from Ondo State, Nigeria. J Fungi (Basel) 2021; 7:635. [PMID: 34436174 PMCID: PMC8397998 DOI: 10.3390/jof7080635] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 07/23/2021] [Accepted: 07/29/2021] [Indexed: 11/16/2022] Open
Abstract
Grains and cassava-based foods serve as major dietary sources for many households in Nigeria. However, these foods are highly prone to contamination by moulds and aflatoxins owing to poor storage and vending practices. Therefore, we studied the fungal diversity in maize, cassava-based flour (pupuru), and rice vended in markets from Ondo state, Nigeria, and assessed their aflatoxin levels using an enzyme-linked immunosorbent assay. Molecular analysis of 65 representative fungal isolates recovered from the ground grains and pupuru samples revealed 26 species belonging to five genera: Aspergillus (80.9%), Penicillium (15.4%), and Talaromyces (1.9%) in the Ascomycota; Syncephalastrum (1.2%) and Lichtheimia (0.6%) in Mucoromycota. Aspergillus flavus was the predominant species in the ground grains and pupuru samples. Aflatoxins were found in 73.8% of the 42 representative food samples and 41.9% exceeded the 10 μg/kg threshold adopted in Nigeria for total aflatoxins.
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Affiliation(s)
- Daniella O. Ekpakpale
- Department of Microbiology, Babcock University, Ilishan Remo 121103, Ogun State, Nigeria; (D.O.E.); (K.I.A.)
| | - Bart Kraak
- Westerdijk Fungal Biodiversity Institute, Uppsalalaan, 3584 Utrecht, The Netherlands; (B.K.); (M.M.); (J.H.)
| | - Martin Meijer
- Westerdijk Fungal Biodiversity Institute, Uppsalalaan, 3584 Utrecht, The Netherlands; (B.K.); (M.M.); (J.H.)
| | - Kolawole I. Ayeni
- Department of Microbiology, Babcock University, Ilishan Remo 121103, Ogun State, Nigeria; (D.O.E.); (K.I.A.)
| | - Jos Houbraken
- Westerdijk Fungal Biodiversity Institute, Uppsalalaan, 3584 Utrecht, The Netherlands; (B.K.); (M.M.); (J.H.)
| | - Chibundu N. Ezekiel
- Department of Microbiology, Babcock University, Ilishan Remo 121103, Ogun State, Nigeria; (D.O.E.); (K.I.A.)
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