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Tao F, Yao H, Hruska Z, Rajasekaran K, Qin J, Kim M, Chao K. Raman Hyperspectral Imaging as a Potential Tool for Rapid and Nondestructive Identification of Aflatoxin Contamination in Corn Kernels. J Food Prot 2024; 87:100335. [PMID: 39074611 DOI: 10.1016/j.jfp.2024.100335] [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: 05/28/2024] [Revised: 07/23/2024] [Accepted: 07/24/2024] [Indexed: 07/31/2024]
Abstract
The potential of Raman hyperspectral imaging with a 785 nm excitation line laser was examined for the detection of aflatoxin contamination in corn kernels. Nine-hundred kernels were artificially inoculated in the laboratory, with 300 kernels each inoculated with AF13 (aflatoxigenic) fungus, AF36 (nonaflatoxigenic) fungus, and sterile distilled water (control). One-hundred kernels from each treatment were subsequently incubated for 3, 5, and 8 days. The mean spectra of single kernels were extracted from the endosperm side and the embryo area of the germ side, and local Raman peaks were identified based upon the calculated reference spectra of aflatoxin-negative and -positive categories separately. The principal component analysis-linear discriminant analysis models were established using different types of variable inputs including original full spectra, preprocessed full spectra, and identified local peaks over kernel endosperm-side, germ-side, and both sides. The results of the established discriminant models showed that the germ-side spectra performed better than the endosperm-side spectra. Based upon the 20 ppb-threshold, the best mean prediction accuracy of 82.6% was achieved for the aflatoxin-negative category using the original spectra in the combined form of both kernel sides, and the best mean prediction accuracy of 86.7% was obtained for the -positive category using the preprocessed germ-side spectra. Based upon the 100 ppb-threshold, the best mean prediction accuracies of 85.0% and 89.6% were achieved for the aflatoxin-negative and -positive categories separately, using the same type of variable inputs for the 20 ppb-threshold. In terms of overall prediction accuracy, the models established upon the original spectra in the combined form of both kernel sides achieved the best predictive performance, regardless of the threshold. The mean overall prediction accuracies of 81.8% and 84.5% were achieved with the 20 ppb- and 100 ppb-thresholds, respectively.
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Affiliation(s)
- Feifei Tao
- Department of Agricultural and Biological Engineering, University of Florida, Gainesville, FL 32611, USA; USDA-ARS, Environmental Microbial and Food Safety Laboratory, Beltsville, MD 20705, USA
| | - Haibo Yao
- USDA-ARS, Genetics and Sustainable Agriculture Research Unit, Mississippi State, MS 39762, USA.
| | - Zuzana Hruska
- Department of Agricultural and Biological Engineering, Mississippi State University, Mississippi State, MS 39762, USA
| | - Kanniah Rajasekaran
- USDA-ARS, Food and Feed Safety Research Unit, Southern Regional Research Center, New Orleans, LA 70124, USA
| | - Jianwei Qin
- USDA-ARS, Environmental Microbial and Food Safety Laboratory, Beltsville, MD 20705, USA
| | - Moon Kim
- USDA-ARS, Environmental Microbial and Food Safety Laboratory, Beltsville, MD 20705, USA
| | - Kuanglin Chao
- USDA-ARS, Environmental Microbial and Food Safety Laboratory, Beltsville, MD 20705, USA
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Zhao W, Ma X, Yan H, Zhang L, Shi W, Zhou Y. Aspergillus flavus and aflatoxins control in long-term storage of food ingredients of Puerh tea, peanut and polished rice. Food Chem 2024; 461:140805. [PMID: 39181056 DOI: 10.1016/j.foodchem.2024.140805] [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: 06/09/2024] [Revised: 07/25/2024] [Accepted: 08/07/2024] [Indexed: 08/27/2024]
Abstract
Aflatoxins are a group of high toxic mycotoxins in food chain. Recent studies showed that aflatoxins might contaminate post-fermented tea, but the result remains controversial. Here, Aspgergillus flavus growth and aflatoxin production were characterized in Puerh tea, peanut and polished rice at different initial water activity (aw) values for long-term storage. As a result, food initial aw value was the critical factor for A. flavus growth and aflatoxin production, and A. flavus almost not grew on foods at aw value lower than 0.8. A. flavus grew best in peanut, followed by rice, but growth on Puerh tea was limited. A. flavus growth was inhibited significantly by adding tea to Potato Dextrose Agar (PDA). Accordingly, aflatoxins produced dramatically in peanut, followed by rice at the first 90 days storage. However, aflatoxin neither produced in Puerh tea nor on tea modified PDA, indicating tea components inhibited A. flavus growth and aflatoxins synthesis.
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Affiliation(s)
- Weifan Zhao
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, 130 Changjiang Road West, Hefei 230036, China
| | - Xue Ma
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, 130 Changjiang Road West, Hefei 230036, China
| | - Hangbin Yan
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, 130 Changjiang Road West, Hefei 230036, China
| | - Liang Zhang
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, 130 Changjiang Road West, Hefei 230036, China
| | - Wei Shi
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, 130 Changjiang Road West, Hefei 230036, China
| | - Yu Zhou
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, 130 Changjiang Road West, Hefei 230036, China; Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization, Ministry of Agriculture and Rural Affairs, Anhui Agricultural University, 130 Changjiang Road West, Hefei 230036, China.
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Ozcelikay G, Cetinkaya A, Kaya SI, Yence M, Canavar Eroğlu PE, Unal MA, Ozkan SA. Novel Sensor Approaches of Aflatoxins Determination in Food and Beverage Samples. Crit Rev Anal Chem 2024; 54:982-1001. [PMID: 35917408 DOI: 10.1080/10408347.2022.2105136] [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] [Indexed: 10/16/2022]
Abstract
The rapid quantification of toxins in food and beverage products has become a significant issue in overcoming and preventing many life-threatening diseases. Aflatoxin-contaminated food is one of the reasons for primary liver cancer and induces some tumors and cancer types. Advancements in biosensors technology have brought out different analysis methods. Therefore, the sensing performance has been improved for agricultural and beverage industries or food control processes. Nanomaterials are widely used for the enhancement of sensing performance. The enzymes, molecularly imprinted polymers (MIP), antibodies, and aptamers can be used as biorecognition elements. The transducer part of the biosensor can be selected, such as optical, electrochemical, and mass-based. This review explains the classification of major types of aflatoxins, the importance of nanomaterials, electrochemical, optical biosensors, and QCM and their applications for the determination of aflatoxins.
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Affiliation(s)
- Goksu Ozcelikay
- Department of Analytical Chemistry, Faculty of Pharmacy, Ankara University, Yenimahalle, Ankara, Turkey
| | - Ahmet Cetinkaya
- Department of Analytical Chemistry, Faculty of Pharmacy, Ankara University, Yenimahalle, Ankara, Turkey
| | - S Irem Kaya
- Department of Analytical Chemistry, Gulhane Faculty of Pharmacy, University of Health Sciences, Kecioren, Ankara, Turkey
| | - Merve Yence
- Department of Analytical Chemistry, Faculty of Pharmacy, Ankara University, Yenimahalle, Ankara, Turkey
| | | | | | - Sibel A Ozkan
- Department of Analytical Chemistry, Faculty of Pharmacy, Ankara University, Yenimahalle, Ankara, Turkey
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Mazlan NF, Sage EE, Mohamad NS, Mackeen MM, Tan LL. On-site sensing for aflatoxicosis poisoning via ultraviolet excitable aptasensor based on fluorinated ethylene propylene strip: a promising forensic tool. Sci Rep 2024; 14:17357. [PMID: 39075202 PMCID: PMC11286874 DOI: 10.1038/s41598-024-68264-3] [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: 02/29/2024] [Accepted: 07/22/2024] [Indexed: 07/31/2024] Open
Abstract
The environmental contamination by extremophile Aspergillus species, i.e., Aflatoxin B1, is hardly controllable in Southeast Asia and Sub-Saharan Africa, which lack handling resources and controlled storage facilities. Acute aflatoxicosis poisoning from aflatoxin-prone dietary staples could cause acute hepatic necrosis, acute liver failure, and death. Here, as the cheaper, more straightforward, and facile on-site diagnostic kit is needed, we report an ultraviolet-excitable optical aptasensor based on a fluorinated ethylene propylene film strip. Molecular dynamics on the aptamer.AFB1 complex revealed that the AFB1 to the aptamer increases the overall structural stability, suggesting that the aptamer design is suitable for the intended application. Under various influencing factors, the proposed label-free strategy offers a fast 20-min on-site fabrication simplicity and 19-day shelf-life. The one-pot incubation provides an alternative to catalytic detection and exhibited 4 times reusability. The recovery of crude brown sugar, processed peanuts, and long-grain rice were 102.74 ± 0.41 (n = 3), 86.90 ± 3.38 (n = 3), and 98.50 ± 0.42 (n = 3), comparable to High-Performance Liquid Chromatography-Photodiode Array Detector results. This study is novel owing to the peculiar UV-active spectrum fingerprint and the convenient use of hydrophobic film strips that could promote breakthrough innovations and new frontiers for on-site/forensic detection of environmental pollutants.
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Affiliation(s)
- Nur-Fadhilah Mazlan
- Southeast Asia Disaster Prevention Research Initiative (SEADPRI), Institute for Environment and Development (LESTARI), Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia
| | - Edison Eukun Sage
- Department of Applied Physics, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia
| | - Nur Syamimi Mohamad
- Southeast Asia Disaster Prevention Research Initiative (SEADPRI), Institute for Environment and Development (LESTARI), Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia
| | - Mukram Mohamed Mackeen
- Department of Chemical Sciences, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia
- Institute of Systems Biology, Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia
| | - Ling Ling Tan
- Southeast Asia Disaster Prevention Research Initiative (SEADPRI), Institute for Environment and Development (LESTARI), Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia.
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Hassen JY, Debella A, Eyeberu A, Mussa I. Prevalence and concentration of aflatoxin M 1 in breast milk in Africa: a meta-analysis and implication for the interface of agriculture and health. Sci Rep 2024; 14:16611. [PMID: 39025909 PMCID: PMC11258143 DOI: 10.1038/s41598-024-59534-1] [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: 09/20/2023] [Accepted: 04/11/2024] [Indexed: 07/20/2024] Open
Abstract
Breast milk is one of the many distinct forms of food that can be contaminated with aflatoxin M1 (AFM1). They may be consumed by eating contaminated foods, such as contaminated meat and crops, which would then be present in breast milk and cause health problems, including nervous system disorders and cancers of the lungs, liver, kidneys, and urinary tract. However, the prevalently inconsistent explanation of prevalence and concentration remains a big challenge. Thus, this meta-analysis was conducted to determine the prevalence and concentration of harmful chemicals in breast milk in an African context. The databases MEDLINE, PubMed, Embase, SCOPUS, Web of Science, and Google Scholar were searched for both published and unpublished research. To conduct the analysis, the collected data were exported to Stata version 18. The results were shown using a forest plot and a prevalence with a 95% confidence interval (CI) using the random-effects model. The Cochrane chi-square (I2) statistics were used to measure the studies' heterogeneity, and Egger's intercept was used to measure publication bias. This review included twenty-eight studies with 4016 breast milk samples and newborns. The analysis showed the overall prevalence and concentration of aflatoxin M1 in breast milk were 53% (95% CI 40, 65; i2 = 98.26%; P = 0.001). The pooled mean aflatoxin M1 concentration in breast milk was 93.02 ng/l. According to this study, the eastern region of Africa was 62% (95% CI 39-82) profoundly affected as compared to other regions of the continent. In subgroup analysis by publication year, the highest level of exposure to aflatoxins (68%; 95% CI 47-85) was observed among studies published from 2010 to 2019. This finding confirmed that more than half of lactating women's breast milk was contaminated with aflatoxin M1 in Africa. The pooled mean aflatoxin M1 concentration in breast milk was 93.02 ng/l. According to this study, the eastern region of Africa was profoundly affected compared with other regions. Thus, the government and all stakeholders must instigate policies that mitigate the toxicity of aflatoxins in lactating women, fetuses, and newborns.
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Affiliation(s)
- Jemal Y Hassen
- Department of Rural Development and Agricultural Extension, College of Agriculture and Environmental Sciences, Haramaya University, Dire Dawa, Ethiopia
| | - Adera Debella
- School of Nursing and Midwifery, College of Health and Medical Sciences, Haramaya University, Harar, Ethiopia
| | - Addis Eyeberu
- School of Nursing and Midwifery, College of Health and Medical Sciences, Haramaya University, Harar, Ethiopia
| | - Ibsa Mussa
- School of Public Health, College of Health and Medical Sciences, Haramaya University, Harar, Ethiopia.
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Li H, Shang Q, Zhang L, Mao J, Zhang Q, Li P. Europium nanospheres based ultrasensitive fluorescence immunosensor for aflatoxin B1 determination in feed. Talanta 2024; 270:125569. [PMID: 38141463 DOI: 10.1016/j.talanta.2023.125569] [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: 08/16/2023] [Revised: 12/06/2023] [Accepted: 12/18/2023] [Indexed: 12/25/2023]
Abstract
In this work, a new competitive immunosensor for aflatoxin B1 (AFB1) detection was developed using europium (Eu) fluorescent nanospheres and magnetic beads. Firstly, Eu nanospheres were synthesized through two steps including carboxylated polystyrene nanospheres and Eu-doped polystyrene nanospheres preparation. Then Eu nanospheres were covalently tagged to anti-AFB1 monoclonal antibody (anti-AFB1 mAb) through an EDC coupling method. Carboxylated Fe3O4 magnetic beads were conjugated to AFB1-BSA through EDC/NHS crosslinking to obtain AFB1-BSA-Fe3O4. In the absence of AFB1, Eu-anti-AFB1 mAb were incubated with AFB1-BSA-Fe3O4 to form Eu-anti-AFB1 mAb-AFB1-BSA-Fe3O4 in PBS buffer. However, in the presence of AFB1, the competitive interaction of AFB1 and AFB1-BSA-Fe3O4 to bind with Eu-anti-AFB1 mAb occurred. With the increasing concentration of AFB1, less Eu-anti-AFB1 mAb-AFB1-BSA-Fe3O4 formed. So the fluorescence intensity of Eu-anti-AFB1 mAb-AFB1-BSA-Fe3O4 was gradually decreased after magnetic separation. The degree of fluorescence decrease was linear with respect to the logarithm of AFB1 concentration in the range of 0.01-2 ng/mL in both buffer solution and feed samples and the detection limit was 0.003 ng/mL. What's more, the immunosensor showed excellent specificity for AFB1 without being interfered by other mycotoxins. In consideration of the excellent performance of this immunosensor, we can speculate that the proposed method could be widely used in detecting food contaminants.
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Affiliation(s)
- Hui Li
- Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, 430062, China; Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Wuhan, 430062, China; National Reference Laboratory for Agricultural Testing (Biotoxin), Wuhan, 430062, China; Key Laboratory of Detection for Mycotoxins, Ministry of Agriculture and Rural Affairs, Wuhan, 430062, China; Laboratory of Quality and Safety Risk Assessment for Oilseed Products (Wuhan), Ministry of Agriculture and Rural Affairs, Wuhan, 430062, China.
| | - Qingyu Shang
- Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, 430062, China; Key Laboratory of Detection for Mycotoxins, Ministry of Agriculture and Rural Affairs, Wuhan, 430062, China; Laboratory of Quality and Safety Risk Assessment for Oilseed Products (Wuhan), Ministry of Agriculture and Rural Affairs, Wuhan, 430062, China
| | - Liangxiao Zhang
- Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, 430062, China; Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Wuhan, 430062, China; Laboratory of Quality and Safety Risk Assessment for Oilseed Products (Wuhan), Ministry of Agriculture and Rural Affairs, Wuhan, 430062, China
| | - Jin Mao
- Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, 430062, China; Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Wuhan, 430062, China; National Reference Laboratory for Agricultural Testing (Biotoxin), Wuhan, 430062, China; Key Laboratory of Detection for Mycotoxins, Ministry of Agriculture and Rural Affairs, Wuhan, 430062, China
| | - Qi Zhang
- Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, 430062, China; Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Wuhan, 430062, China; National Reference Laboratory for Agricultural Testing (Biotoxin), Wuhan, 430062, China; Key Laboratory of Detection for Mycotoxins, Ministry of Agriculture and Rural Affairs, Wuhan, 430062, China; Laboratory of Quality and Safety Risk Assessment for Oilseed Products (Wuhan), Ministry of Agriculture and Rural Affairs, Wuhan, 430062, China.
| | - Peiwu Li
- Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, 430062, China; Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture and Rural Affairs, Wuhan, 430062, China; National Reference Laboratory for Agricultural Testing (Biotoxin), Wuhan, 430062, China; Key Laboratory of Detection for Mycotoxins, Ministry of Agriculture and Rural Affairs, Wuhan, 430062, China; Laboratory of Quality and Safety Risk Assessment for Oilseed Products (Wuhan), Ministry of Agriculture and Rural Affairs, Wuhan, 430062, China.
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Okechukwu VO, Adelusi OA, Kappo AP, Njobeh PB, Mamo MA. Aflatoxins: Occurrence, biosynthesis, mechanism of action and effects, conventional/emerging detection techniques. Food Chem 2024; 436:137775. [PMID: 37866099 DOI: 10.1016/j.foodchem.2023.137775] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 10/11/2023] [Accepted: 10/14/2023] [Indexed: 10/24/2023]
Abstract
Aflatoxins (AFs) are toxic secondary metabolites prevalent in various food and agricultural products, posing significant challenges to global food safety. The detection and quantification of AFs through high-precision analytical techniques are crucial in mitigating AF contamination levels and associated health risks. Variousmethods,including conventional and emerging techniques, have been developed for detecting and quantifyingAFsinfood samples. This review provides an in-depth analysis of the global occurrence of AF in food commodities, covering their biosynthesis, mode of action, and effects on humans and animals. Additionally, the review discusses different conventional strategies, including chromatographic and immunochemical approaches, for AF quantification and identification in food samples. Furthermore, emerging AF detection strategies, such as solid-state gas sensors and electronic nose technologies, along with their applications, limitations, and future perspectives, were reviewed. Sample purification, along with their respective advantages and limitations, are also discussed herein.
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Affiliation(s)
- Viola O Okechukwu
- Department of Biochemistry, Auckland Park Kingsway Campus, University of Johannesburg, South Africa
| | - Oluwasola A Adelusi
- Department of Biotechnology and Food Technology, PO Box 17011, Doornfontein Campus, University of Johannesburg, South Africa
| | - Abidemi P Kappo
- Department of Biochemistry, Auckland Park Kingsway Campus, University of Johannesburg, South Africa
| | - Patrick B Njobeh
- Department of Biotechnology and Food Technology, PO Box 17011, Doornfontein Campus, University of Johannesburg, South Africa
| | - Messai A Mamo
- Department of Chemical Sciences, PO Box 2028, Doornfontein Campus, University of Johannesburg, South Africa.
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Hassen JY, Debella A, Eyeberu A, Mussa I. Level of exposure to aflatoxins during pregnancy and its association with adverse birth outcomes in Africa: a meta-analysis. Int Health 2024:ihae015. [PMID: 38339961 DOI: 10.1093/inthealth/ihae015] [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: 08/08/2023] [Revised: 12/28/2023] [Accepted: 01/18/2024] [Indexed: 02/12/2024] Open
Abstract
BACKGROUND Aflatoxins are various poisonous carcinogens and mutagens produced by Aspergillus species. Exposure to aflatoxins during pregnancy results in adverse birth outcomes. This meta-analysis was carried out to determine the estimates of how much aflatoxin is harmful to the pregnancy and its outcome, including birthweight, birth length, low birthweight (LBW), small for gestational age (SGA), stunting, poverty, food insecurity, income, pesticides and stillbirth, in an African context. METHODS Both published and unpublished studies in Africa were searched on MEDLINE, PubMed, Embase, SCOPUS, Web of Science and Google Scholar. Stata version 18.2 software was used for cleaning and analysis. The prevalence with a 95% confidence interval (CI) was estimated using the random effects model and a forest plot was used to present the findings. In addition, the heterogeneity of the study was assessed using Cochrane I2 statistics and publication bias was assessed using Egger's intercept and funnel plot. RESULTS This review included 28 studies with a total of 6283 pregnant women and newborns. The analysis showed the overall level of exposure to aflatoxins was 64% (95% CI 48 to 78, τ2=0.66, I2=99.34%, p=0.001). In the subgroup analysis by publication year, the highest level of exposure to aflatoxins (82% [95% CI 69 to 92]) was observed among studies published from 2020 to 2023. This study also found that exposure to aflatoxins during pregnancy had an association with prematurity, LBW, SGA and stillbirth. CONCLUSIONS The data analysed in this study indicated that three of every five pregnant women had exposure to aflatoxins in Africa. Moreover, pregnant women exposed to aflatoxins had a higher likelihood of having a LBW and SGA newborn. Thus governments and all stakeholders should initiate policies that mitigate the toxicity of aflatoxins in pregnant women, foetuses and newborns.
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Affiliation(s)
- Jemal Y Hassen
- School of Rural Development and Agricultural Innovation, Haramaya University, Dire Dawa, Ethiopia
| | - Adera Debella
- School of Nursing and Midwifery, College of Health and Medical Sciences, Haramaya University, Harar, Ethiopia
| | - Addis Eyeberu
- School of Nursing and Midwifery, College of Health and Medical Sciences, Haramaya University, Harar, Ethiopia
| | - Ibsa Mussa
- School of Public Health, College of Health and Medical Sciences, Haramaya University, Harar, Ethiopia
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Ali EM, Abdallah BM. The potential use of ozone as antifungal and antiaflatoxigenic agent in nuts and its effect on nutritional quality. BRAZ J BIOL 2024; 84:e263814. [DOI: 10.1590/1519-6984.263814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Accepted: 05/31/2022] [Indexed: 11/21/2022] Open
Abstract
Abstract Ozone gas is considered as a safe antimicrobial agent in food industries. Here, we evaluated the antifungal and antiaflatoxigenic activities of ozone against fungal contamination in nuts. The most predominant fungal genera in nuts were Aspergillus, Penicillium, Fusarium, and Rhizopus. Ozone (4 ppm) significantly reduced the fungal sporulation of A. flavus and their aflatoxin production. Interestingly, ozone treatment of nuts reduced the total fungal count and increased aflatoxins degradation by approximately 95% and 85%, respectively. Ozone displayed high efficiency to increase the permeability of cell membrane and injury of cell wall of fungi. Increasing the exposure time of ozone in nuts up to 180 minutes showed to reduce the total lipid, carbohydrates, and protein by around 41.2%, 42.7% and 38.4% respectively, in pistachio, almond and peanuts. In conclusion, ozonation is a suitable decontaminating approach for reducing the microbial load in nuts, when used with suitable exposure time.
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Affiliation(s)
- E. M. Ali
- King Faisal University, Saudi Arabia; Cairo University, Egypt
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Mohamed AB, Gathman RJ, Chavez RA, Wagacha MJ, Mutegi CK, Muthomi JW, Stasiewicz MJ. Multispectral Sorting Based on Visibly High-Risk Kernels Sourced from Another Country Reduces Fumonisin and Toxigenic Fusarium on Maize Kernels. J Food Prot 2023; 86:100142. [PMID: 37562513 DOI: 10.1016/j.jfp.2023.100142] [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: 04/17/2023] [Revised: 07/31/2023] [Accepted: 08/03/2023] [Indexed: 08/12/2023]
Abstract
Fusarium species infect maize crops leading to the production of fumonisin by their toxigenic members. Elimination of microbes is critical in mitigating further postharvest spoilage and toxin accumulation. The current study investigates the efficacy of a previously described multispectral sorting technique to analyze the reduction of fumonisin and toxigenic Fusarium species found contaminating maize kernels in Kenya. Maize samples (n = 99) were collected from six mycotoxin hotspot counties in Kenya (Embu, Meru, Tharaka Nithi, Machakos, Makueni, and Kitui County) and analyzed for aflatoxin and fumonisin using commercial ELISA kits. Aflatoxin levels in majority (91%) of the samples were below the 10 ng/g threshold set by the Kenya Bureau of Standards and therefore not studied further. The 23/99 samples that had >2,000 ng/g of fumonisin were selected for sorting. The sorter was calibrated using kernels sourced from Ghana to reject visibly high-risk kernels for fumonisin contamination using reflectance at nine distinct wavelengths (470-1,550 nm). Accepted and rejected streams were tested for fumonisin using ELISA, and the presence of toxigenic Fusarium using qPCR. After sorting, there was a significant (p < 0.001) reduction of fumonisin, by an average of 1.8 log ng/g (98%) and ranging between 0.14 and 2.7 log ng/g reduction (28-99.8%) with a median mass rejection rate of 1.9% (ranged 0% to 48%). The fumonisin rejection rate ranged between 0 and 99.8% with a median of 77%. There was also a significant reduction (p = 0.005) in the proportion of DNA represented by toxigenic Fusarium, from a mean of 30-1.4%. This study demonstrates the use of multispectral sorting as a potential postharvest intervention tool for the reduction of Fusarium species and preformed fumonisin. The spectral sorting approach of this study suggests that classification algorithms based on high-risk visual features associated with mycotoxin can be applied across different sources of maize to reduce fumonisin.
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Affiliation(s)
- Asha B Mohamed
- Department of Plant Science and Crop Protection, University of Nairobi, P. O. Box 29053-00625, Nairobi, Kenya
| | - Rachel J Gathman
- Department of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, 1302 W Pennsylvania Ave., Urbana, IL 61801, USA
| | - Ruben A Chavez
- Department of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, 1302 W Pennsylvania Ave., Urbana, IL 61801, USA
| | - Maina J Wagacha
- Department of Biology, University of Nairobi, P.O. Box 30197, GPO, Nairobi, Kenya
| | - Charity K Mutegi
- International Institute of Tropical Agriculture, ILRI, P.O Box 30709-00100, Nairobi, Kenya
| | - James W Muthomi
- Department of Plant Science and Crop Protection, University of Nairobi, P. O. Box 29053-00625, Nairobi, Kenya
| | - Matthew J Stasiewicz
- Department of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, 1302 W Pennsylvania Ave., Urbana, IL 61801, USA.
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Guo Z, Zhang J, Dong H, Sun J, Huang J, Li S, Ma C, Guo Y, Sun X. Spatio-temporal distribution patterns and quantitative detection of aflatoxin B 1 and total aflatoxin in peanut kernels explored by short-wave infrared hyperspectral imaging. Food Chem 2023; 424:136441. [PMID: 37244182 DOI: 10.1016/j.foodchem.2023.136441] [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: 12/14/2022] [Revised: 05/17/2023] [Accepted: 05/19/2023] [Indexed: 05/29/2023]
Abstract
Aflatoxin contamination in peanut kernels seriously harms the health of humans and causes significant economic losses. Rapid and accurate detection of aflatoxin is necessary to minimize its contamination. However, current detection methods are time-consuming, expensive and destructive to samples. Therefore, short-wave infrared (SWIR) hyperspectral imaging coupled with multivariate statistical analysis was used to investigate the spatio-temporal distribution patterns of aflatoxin, and quantitatively detect the aflatoxin B1 (AFB1) and total aflatoxin in peanut kernels. In addition, Aspergillus flavus contamination was identified to prevent the production of aflatoxin. The result of validation set demonstrated that SWIR hyperspectral imaging could predict the contents of the AFB1 and total aflatoxin accurately, with residual prediction deviation values of 2.7959 and 2.7274, and limits of detection of 29.3722 and 45.7429 μg/kg, respectively. This study presents a novel method for the quantitative detection of aflatoxin and offers an early warning system for its potential application.
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Affiliation(s)
- Zhen Guo
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China
| | - Jing Zhang
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong 255049, China
| | - Haowei Dong
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China
| | - Jiashuai Sun
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China
| | - Jingcheng Huang
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China
| | - Shiling Li
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China
| | - Chengye Ma
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong 255049, China
| | - Yemin Guo
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China
| | - Xia Sun
- School of Agricultural Engineering and Food Science, Shandong University of Technology, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Shandong Provincial Engineering Research Center of Vegetable Safety and Quality Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China; Zibo City Key Laboratory of Agricultural Product Safety Traceability, No. 266 Xincun Xilu, Zibo, Shandong 255049, China
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12
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Current Developments of Analytical Methodologies for Aflatoxins' Determination in Food during the Last Decade (2013-2022), with a Particular Focus on Nuts and Nut Products. Foods 2023; 12:foods12030527. [PMID: 36766055 PMCID: PMC9914313 DOI: 10.3390/foods12030527] [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: 12/02/2022] [Revised: 01/09/2023] [Accepted: 01/20/2023] [Indexed: 01/26/2023] Open
Abstract
This review aims to provide a clear overview of the most important analytical development in aflatoxins analysis during the last decade (2013-2022) with a particular focus on nuts and nuts-related products. Aflatoxins (AFs), a group of mycotoxins produced mainly by certain strains of the genus Aspergillus fungi, are known to impose a serious threat to human health. Indeed, AFs are considered carcinogenic to humans, group 1, by the International Agency for Research on Cancer (IARC). Since these toxins can be found in different food commodities, food control organizations worldwide impose maximum levels of AFs for commodities affected by this threat. Thus, they represent a cumbersome issue in terms of quality control, analytical result reliability, and economical losses. It is, therefore, mandatory for food industries to perform analysis on potentially contaminated commodities before the trade. A full perspective of the whole analytical workflow, considering each crucial step during AFs investigation, namely sampling, sample preparation, separation, and detection, will be presented to the reader, focusing on the main challenges related to the topic. A discussion will be primarily held regarding sample preparation methodologies such as partitioning, solid phase extraction (SPE), and immunoaffinity (IA) related methods. This will be followed by an overview of the leading analytical techniques for the detection of aflatoxins, in particular liquid chromatography (LC) coupled to a fluorescence detector (FLD) and/or mass spectrometry (MS). Moreover, the focus on the analytical procedure will not be specific only to traditional methodologies, such as LC, but also to new direct approaches based on imaging and the ability to detect AFs, reducing the need for sample preparation and separative techniques.
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13
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Wang B, Shen F, He X, Fang Y, Hu Q, Liu X. Simultaneous detection of Aspergillus moulds and aflatoxin B1 contamination in rice by laser induced fluorescence spectroscopy. Food Control 2022. [DOI: 10.1016/j.foodcont.2022.109485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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14
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Yin S, Niu L, Liu Y. Recent Progress on Techniques in the Detection of Aflatoxin B 1 in Edible Oil: A Mini Review. Molecules 2022; 27:6141. [PMID: 36234684 PMCID: PMC9573432 DOI: 10.3390/molecules27196141] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 09/12/2022] [Accepted: 09/15/2022] [Indexed: 11/16/2022] Open
Abstract
Contamination of agricultural products and foods by aflatoxin B1 (AFB1) is becoming a serious global problem, and the presence of AFB1 in edible oil is frequent and has become inevitable, especially in underdeveloped countries and regions. As AFB1 results from a possible degradation of aflatoxins and the interaction of the resulting toxic compound with food components, it could cause chronic disease or severe cancers, increasing morbidity and mortality. Therefore, rapid and reliable detection methods are essential for checking AFB1 occurrence in foodstuffs to ensure food safety. Recently, new biosensor technologies have become a research hotspot due to their characteristics of speed and accuracy. This review describes various technologies such as chromatographic and spectroscopic techniques, ELISA techniques, and biosensing techniques, along with their advantages and weaknesses, for AFB1 control in edible oil and provides new insight into AFB1 detection for future work. Although compared with other technologies, biosensor technology involves the cross integration of multiple technologies, such as spectral technology and new nano materials, and has great potential, some challenges regarding their stability, cost, etc., need further studies.
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Affiliation(s)
- Shipeng Yin
- School of Food Science and Technology, Jiangnan University, No. 1800 Lihu Road, Binhu District, Wuxi 214122, China
| | - Liqiong Niu
- School of Life Sciences, Guangzhou University, Guangzhou 510006, China
| | - Yuanfa Liu
- School of Food Science and Technology, Jiangnan University, No. 1800 Lihu Road, Binhu District, Wuxi 214122, China
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15
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Lu Y, Jia B, Yoon SC, Zhuang H, Ni X, Guo B, Gold SE, Fountain JC, Glenn AE, Lawrence KC, Zhang H, Guo X, Zhang F, Wang W. Spatio-temporal patterns of Aspergillus flavus infection and aflatoxin B 1 biosynthesis on maize kernels probed by SWIR hyperspectral imaging and synchrotron FTIR microspectroscopy. Food Chem 2022; 382:132340. [PMID: 35139463 DOI: 10.1016/j.foodchem.2022.132340] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 01/09/2022] [Accepted: 01/31/2022] [Indexed: 11/16/2022]
Abstract
The dynamics mechanisms regulating the growth and AFB1 production of Aspergillus flavus during its interactions with maize kernels remain unclear. In this study, shortwave infrared hyperspectral imaging (SWIR-HSI) and synchrotron radiation Fourier transform infrared (SR-FTIR) microspectroscopy were combined to investigate chemical and spatial-temporal changes in incremental damaged maize kernels induced by A. flavus infection at macroscopic and microscopic levels. SWIR-HSI was employed to extract spectral information of A. flavus growth and quantitatively detect AFB1 levels. Satisfactory full-spectrum models and simplified multispectral models were obtained respectively by partial least squares regression (PLSR) for three types of samples. Furthermore, SR-FTIR microspectroscopy coupled with two-dimensional correlation spectroscopy (2DCOS) was utilized to reveal the possible sequence of dynamic changes of nutrient loss and trace AFB1 in maize kernels. It exhibited new insights on how to quantify the spatio-temporal patterns of fungal infection and AFB1 accumulation on maize and provided theoretical basis for online sorting.
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Affiliation(s)
- Yao Lu
- Beijing Key Laboratory of Optimization Design for Modern Agricultural Equipment, College of Engineering, China Agricultural University, Beijing 100083, China
| | - Beibei Jia
- Institute of Food Safety, Chinese Academy of Inspection and Quarantine, Beijing 100176, China
| | - Seung-Chul Yoon
- Quality & Safety Assessment Research Unit, U. S. National Poultry Research Center, USDA-ARS, 950 College Station Rd., Athens, GA 30605, USA
| | - Hong Zhuang
- Quality & Safety Assessment Research Unit, U. S. National Poultry Research Center, USDA-ARS, 950 College Station Rd., Athens, GA 30605, USA
| | - Xinzhi Ni
- Crop Genetics and Breeding Research Unit, USDA-ARS, 2747 Davis Road, Tifton, GA 31793, USA
| | - Baozhu Guo
- Crop Genetics and Breeding Research Unit, USDA-ARS, 2747 Davis Road, Tifton, GA 31793, USA
| | - Scott E Gold
- Toxicology & Mycotoxin Research Unit, U. S. National Poultry Research Center, USDA-ARS, 950 College Station Rd., Athens, GA 30605, USA
| | - Jake C Fountain
- Department of Biochemistry, Molecular Biology, Entomology and Plant Pathology, Mississippi State, University, Starkville, MS 39762, USA
| | - Anthony E Glenn
- Toxicology & Mycotoxin Research Unit, U. S. National Poultry Research Center, USDA-ARS, 950 College Station Rd., Athens, GA 30605, USA
| | - Kurt C Lawrence
- Quality & Safety Assessment Research Unit, U. S. National Poultry Research Center, USDA-ARS, 950 College Station Rd., Athens, GA 30605, USA
| | - Haicheng Zhang
- Beijing Key Laboratory of Optimization Design for Modern Agricultural Equipment, College of Engineering, China Agricultural University, Beijing 100083, China
| | - Xiaohuan Guo
- Beijing Key Laboratory of Optimization Design for Modern Agricultural Equipment, College of Engineering, China Agricultural University, Beijing 100083, China
| | - Feng Zhang
- Institute of Food Safety, Chinese Academy of Inspection and Quarantine, Beijing 100176, China
| | - Wei Wang
- Beijing Key Laboratory of Optimization Design for Modern Agricultural Equipment, College of Engineering, China Agricultural University, Beijing 100083, China.
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16
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Yavuzer E, Köse M. Prediction of fish quality level with machine learning. Int J Food Sci Technol 2022. [DOI: 10.1111/ijfs.15853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Emre Yavuzer
- Department of Food Engineering, Faculty of Engineering and Architecture Kırşehir Ahi Evran University 40100 Kırşehir Turkey
| | - Memduh Köse
- Department of Electrical Electronics Engineering, Faculty of Engineering and Architecture Kırşehir Ahi Evran University 40100 Kırşehir Turkey
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17
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Naeem I, Ismail A, Rehman AU, Ismail Z, Saima S, Naz A, Faraz A, de Oliveira CAF, Benkerroum N, Aslam MZ, Aslam R. Prevalence of Aflatoxins in Selected Dry Fruits, Impact of Storage Conditions on Contamination Levels and Associated Health Risks on Pakistani Consumers. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:3404. [PMID: 35329090 PMCID: PMC8954913 DOI: 10.3390/ijerph19063404] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Revised: 02/21/2022] [Accepted: 03/09/2022] [Indexed: 12/16/2022]
Abstract
Dry fruits and nuts are nutritious foods with several health-promoting properties. However, they are prone to contamination with aflatoxins at all stages of production and storage. The present study aimed to determine the natural occurrence of aflatoxin B1 (AFB1), aflatoxin B2 (AFB2), aflatoxin G1 (AFG1), aflatoxin G2 (AFG2), and total aflatoxins (AFT) in dates, pistachios, and walnuts collected from four districts of South Punjab (Pakistan), and to assess the associated health risks as estimated by dietary exposure and the Margin of Exposure (MoE) determinations. The contents of AFB1 and AFT in these food products were monitored during storage under three different conditions (open-air, hermetically closed jars, and refrigeration at 4 °C) to determine the most efficient conditions in preventing aflatoxin accumulation. HPLC-fluorescence analysis of 60 samples of these products for aflatoxin contamination showed that 52 (86.7%) samples were contaminated at different levels, with a maximum of 24.2 ng/g. The overall (all samples) mean concentrations of AFB1, AFB2, AFG1, AFG2, and AFT were 3.39 ± 2.96, 1.39 ± 1.68, 1.63 ± 1.48. 1.12 ± 1.23, and 7.54 ± 6.68, respectively. The Estimated Daily Intake (EDI) and MoE of aflatoxins through the consumption of the products ranged from 0.06 ng/kg bw/day to 2.0 ng/kg bw/day and from 84.84 to 2857.13, respectively, indicating that consumers are at high health risk. Significant differences were recorded between aflatoxin levels in the samples stored under different storage conditions, with storage under refrigeration (4 °C) being the most effective in controlling aflatoxin accumulation, although storage in closed jars was also efficient and offers a more flexible alternative to retailers. The findings of the study urge official authorities of Pakistan to implement appropriate regulatory and control measures and surveillance program to alleviate the potential public health risks associated with the consumption of dry fruits and nuts in the scope of their increased consumption.
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Affiliation(s)
- Iqra Naeem
- Faculty of Agricultural Sciences and Technology, Institute of Food Science and Nutrition, Bahauddin Zakariya University, Multan 60000, Pakistan; (I.N.); (A.U.R.); (Z.I.)
| | - Amir Ismail
- Faculty of Agricultural Sciences and Technology, Institute of Food Science and Nutrition, Bahauddin Zakariya University, Multan 60000, Pakistan; (I.N.); (A.U.R.); (Z.I.)
| | - Awais Ur Rehman
- Faculty of Agricultural Sciences and Technology, Institute of Food Science and Nutrition, Bahauddin Zakariya University, Multan 60000, Pakistan; (I.N.); (A.U.R.); (Z.I.)
| | - Zubair Ismail
- Faculty of Agricultural Sciences and Technology, Institute of Food Science and Nutrition, Bahauddin Zakariya University, Multan 60000, Pakistan; (I.N.); (A.U.R.); (Z.I.)
| | - Shehzadi Saima
- Faculty of Sciences, Institute of Pure and Applied Biology, Bahauddin Zakariya University, Multan 60000, Pakistan;
| | - Ambreen Naz
- Department of Food Science and Technology, MNS University of Agriculture, Multan 60000, Pakistan;
| | - Asim Faraz
- Department of Livestock & Poultry Production, Faculty of Veterinary Sciences, Bahauddin Zakariya University, Multan 60000, Pakistan;
| | | | - Noreddine Benkerroum
- Canadian Food Inspection Agency, 93 Mount Edward Rd Charlottetown, Charlottetown, PE C1A 5T1, Canada
| | | | - Rashida Aslam
- Cytogenetics Section, Central Cotton Research Institute, Multan 60000, Pakistan;
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18
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Pérez-Fernández B, Muñiz ADLE. Electrochemical biosensors based on nanomaterials for aflatoxins detection: A review (2015–2021). Anal Chim Acta 2022; 1212:339658. [DOI: 10.1016/j.aca.2022.339658] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 02/09/2022] [Accepted: 02/24/2022] [Indexed: 12/25/2022]
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19
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Mishra G, Panda BK, Ramirez WA, Jung H, Singh CB, Lee SH, Lee I. Application of SWIR hyperspectral imaging coupled with chemometrics for rapid and non-destructive prediction of Aflatoxin B1 in single kernel almonds. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2021.112954] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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20
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Zhou Y, Wu Y, Chen Z. Early Detection of Mold-Contaminated Maize Kernels Based on Optical Coherence Tomography. FOOD ANAL METHOD 2022. [DOI: 10.1007/s12161-021-02205-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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21
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Mohd Ali M, Hashim N. Non-destructive methods for detection of food quality. FUTURE FOODS 2022. [DOI: 10.1016/b978-0-323-91001-9.00003-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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22
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Zhang J, Xu B, Wang Z, Cheng F. Application of hyperspectral imaging in the detection of aflatoxin B1 on corn seed. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2021. [DOI: 10.1007/s11694-021-01171-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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23
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[Progress of sample preparation and analytical methods of dried fruit foods]. Se Pu 2021; 39:958-967. [PMID: 34486835 PMCID: PMC9404242 DOI: 10.3724/sp.j.1123.2021.06030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
坚果、果脯等干果类食品含有丰富的营养成分,深受国内外广大消费者的喜爱。但这些食品在果实生产、加工、储运时会使用农药或产生霉变等,造成干果中农药、重金属、霉菌毒素或添加剂等有害成分残留,甚至超过国家限量要求,带来严重的食品安全问题。因此,加强干果类食品的质量监督具有重要的经济和社会意义。但干果类食品基质复杂,有害物质种类多,结构和性质差异大,含量低,其分析检测需要快速高效的样品前处理技术和准确灵敏的分析检测方法。该文主要综述了近十年来干果类食品中有害物质的样品前处理及分析检测方法研究进展。其中样品前处理方法主要包括各种场辅助萃取法、相分离法和衍生化萃取方法等。场辅助萃取法主要是借助超声波和微波场等外场(协同)作用加快干果中有害物质的溶出速度,提高其萃取效率。相分离法,包括固相(微)萃取、分散固相萃取和液相(微)萃取法等,具有溶剂消耗少、分离富集效率高的优势,是干果样品分析中较常使用的前处理方法。该文还重点介绍了干果中各类有害成分分析检测技术,主要包括色谱、原子光谱、无机质谱、电化学分析等常规实验室方法,以及一些适用于现场分析的快速检测技术,并以此为基础,展望了干果类食品中有害物质分析检测技术的发展趋势。
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Mishra G, Panda BK, Ramirez WA, Jung H, Singh CB, Lee SH, Lee I. Research advancements in optical imaging and spectroscopic techniques for nondestructive detection of mold infection and mycotoxins in cereal grains and nuts. Compr Rev Food Sci Food Saf 2021; 20:4612-4651. [PMID: 34338431 DOI: 10.1111/1541-4337.12801] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 06/07/2021] [Accepted: 06/15/2021] [Indexed: 12/01/2022]
Abstract
Cereal grains and nuts are represented as the economic backbone of many developed and developing countries. Kernels of cereal grains and nuts are prone to mold infection under high relative humidity and suitable temperature conditions in the field as well as storage conditions. Health risks caused by molds and their molecular metabolite mycotoxins are, therefore, important topics to investigate. Strict regulations have been developed by international trade regulatory bodies for the detection of mold growth and mycotoxin contamination across the food chain starting from the harvest to storage and consumption. Molds and aflatoxins are not evenly distributed over the bulk of grains, thus appropriate sampling for detection and quantification is crucial. Existing reference methods for mold and mycotoxin detection are destructive in nature as well as involve skilled labor and hazardous chemicals. Also, these methods cannot be used for inline sorting of the infected kernels. Thus, analytical methods have been extensively researched to develop the one that is more practical to be used in commercial detection and sorting processes. Among various analytical techniques, optical imaging and spectroscopic techniques are attracting growers' attention for their potential of nondestructive and rapid inline identification and quantification of molds and mycotoxins in various food products. This review summarizes the recent application of rapid and nondestructive optical imaging and spectroscopic techniques, including digital color imaging, X-ray imaging, near-infrared spectroscopy, fluorescent, multispectral, and hyperspectral imaging. Advance chemometric techniques to identify very low-level mold growth and mycotoxin contamination are also discussed. Benefits, limitations, and challenges of deploying these techniques in practice are also presented in this paper.
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Affiliation(s)
- Gayatri Mishra
- UniSA STEM, University of South Australia, Mawson Lakes, South Australia, Australia
| | - Brajesh Kumar Panda
- UniSA STEM, University of South Australia, Mawson Lakes, South Australia, Australia
| | - Wilmer Ariza Ramirez
- UniSA STEM, University of South Australia, Mawson Lakes, South Australia, Australia
| | - Hyewon Jung
- UniSA STEM, University of South Australia, Mawson Lakes, South Australia, Australia
| | - Chandra B Singh
- UniSA STEM, University of South Australia, Mawson Lakes, South Australia, Australia.,Centre for Applied Research, Innovation and Entrepreneurship, Lethbridge College, Lethbridge, Alberta, Canada
| | - Sang-Heon Lee
- UniSA STEM, University of South Australia, Mawson Lakes, South Australia, Australia
| | - Ivan Lee
- UniSA STEM, University of South Australia, Mawson Lakes, South Australia, Australia
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25
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Song H, Li F, Guang P, Yang X, Pan H, Huang F. Detection of Aflatoxin B1 in Peanut Oil Using Attenuated Total Reflection Fourier Transform Infrared Spectroscopy Combined with Partial Least Squares Discriminant Analysis and Support Vector Machine Models. J Food Prot 2021; 84:1315-1320. [PMID: 33710323 DOI: 10.4315/jfp-20-447] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Accepted: 03/11/2021] [Indexed: 11/11/2022]
Abstract
ABSTRACT This study was conducted to establish a rapid and accurate method for identifying aflatoxin contamination in peanut oil. Attenuated total reflection Fourier transform infrared (ATR-FTIR) spectroscopy combined with either partial least squares discriminant analysis (PLS-DA) or a support vector machine (SVM) algorithm were used to construct discriminative models for distinguishing between uncontaminated and aflatoxin-contaminated peanut oil. Peanut oil samples containing various concentrations of aflatoxin B1 were examined with an ATR-FTIR spectrometer. Preprocessed spectral data were input to PLS-DA and SVM algorithms to construct discriminative models for aflatoxin contamination in peanut oil. SVM penalty and kernel function parameters were optimized using grid search, a genetic algorithm, and particle swarm optimization. The PLS-DA model established using spectral data had an accuracy of 94.64% and better discrimination than did models established based on preprocessed data. The SVM model established after data normalization and grid search optimization with a penalty parameter of 16 and a kernel function parameter of 0.0359 had the best discrimination, with 98.2143% accuracy. The discriminative models for aflatoxin contamination in peanut oil established by combining ATR-FTIR spectral data and nonlinear SVM algorithm were superior to the linear PLS-DA models. HIGHLIGHTS
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Affiliation(s)
- Han Song
- Department of Optoelectronic Engineering, Jinan University, Guangzhou 510632, People's Republic of China
| | - Feng Li
- Guangzhou Huibiao Testing Technology Center, Guangzhou 510700, People's Republic of China
| | - Peiwen Guang
- Department of Optoelectronic Engineering, Jinan University, Guangzhou 510632, People's Republic of China
| | - Xinhao Yang
- Department of Optoelectronic Engineering, Jinan University, Guangzhou 510632, People's Republic of China
| | - Huanyu Pan
- Guangzhou Huibiao Testing Technology Center, Guangzhou 510700, People's Republic of China
| | - Furong Huang
- Department of Optoelectronic Engineering, Jinan University, Guangzhou 510632, People's Republic of China
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26
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Şen L. A small field search on the effects of hand sorting process on aflatoxins and sterigmatocystin occurrence in raw hazelnut kernels. J FOOD PROCESS PRES 2021. [DOI: 10.1111/jfpp.15607] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Levent Şen
- Food Engineering Department, Engineering Faculty Giresun University Giresun Turkey
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27
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Awan HS, Ahmad KS, Iram S, Hanif NQ, Gul MM. Analysis and quantification of naturally occurring aflatoxin B1 in dry fruits with subsequent physical and biological detoxification. Nat Prod Res 2021; 36:3100-3104. [PMID: 34085582 DOI: 10.1080/14786419.2021.1935930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Current research involves extraction, identification and detoxification of mycotoxins from ten dry fruit samples. Mycotoxins were identified by high performance thin layer chromatography followed by physical and biological detoxification, analysed by HPLC. Three fungal species were observed after isolation including, Aspergillus niger, Aspergillus flavus and Fussarium sp. HP-TLC analysis revealed the presence of mycotoxin, aflatoxin B1 ranging from 0.000303-0.03636 mg/kg in all samples. Results were further analysed through various statistical tests. Detoxification methods proved to be cost effective and easily implementable. Concentration of aflatoxin B1 in pine nuts was reduced to 0.0043 mg/kg and 0.0039 mg/kg in dry dates through UV based detoxification. Solarisation reduced the concentration of aflatoxin B1 in figs to 0.0044 mg/kg. 90% aflatoxins were detoxified by UV treatment while Zingiber officinale powder detoxified 90% mycotoxin. This research concludes that the studied detoxification methods can be generalised on larger scale to benefit the dry fruit industry worldwide.
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Affiliation(s)
- Hareem Shaukat Awan
- Department of Environmental Sciences, Fatima Jinnah Women University, Rawalpindi, Pakistan
| | - Khuram Shahzad Ahmad
- Department of Environmental Sciences, Fatima Jinnah Women University, Rawalpindi, Pakistan
| | - Shazia Iram
- Department of Environmental Sciences, Fatima Jinnah Women University, Rawalpindi, Pakistan
| | | | - Mahwash Mahar Gul
- Department of Environmental Sciences, Fatima Jinnah Women University, Rawalpindi, Pakistan
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28
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Moslehi Z, Mohammadi Nafchi A, Moslehi M, Jafarzadeh S. Aflatoxin, microbial contamination, sensory attributes, and morphological analysis of pistachio nut coated with methylcellulose. Food Sci Nutr 2021; 9:2576-2584. [PMID: 34026073 PMCID: PMC8116842 DOI: 10.1002/fsn3.2212] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 02/15/2021] [Accepted: 02/17/2021] [Indexed: 01/06/2023] Open
Abstract
Pistachio is a nut with high consumption that could be affected by aflatoxin contamination, which affects the consumption market; therefore, broad studies seem to be necessary for this area. In the current study, pistachio nuts (Abbasali variety) were coated with different concentrations (0.1%, 0.5%, 1%, and 2%) of methylcellulose (MC) by immersion method and then stored in the incubator (25°C) for four months. The inhibitory effect of hydrocolloid coating on microbial (mold, yeast, and total count) and aflatoxin (B1, B2, G1, G2, and total aflatoxin) contamination, as well as sensory attributes (flavor, color, crispiness, aroma, and total acceptability), was investigated during storage periods. Results showed that the storage period had a significant effect on yeast, mold, and total count. HPLC analysis results showed that coating with MC had a significant inhibitory effect on aflatoxin contamination, and the highest amount of aflatoxin contamination was related to the control sample (3.5%). All samples except sample coated with MC 0.5% had appropriate total acceptability. Regarding the inhibitory effect of MC edible coating on aflatoxin contamination, its application on pistachio nut could be a promising approach to control the fungus infection and reduce aflatoxin production in coated pistachio.
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Affiliation(s)
- Zeinab Moslehi
- Food Science and Technology DepartmentDamghan BranchIslamic Azad UniversityDamghanIran
| | - Abdorreza Mohammadi Nafchi
- Food Science and Technology DepartmentDamghan BranchIslamic Azad UniversityDamghanIran
- Food Biopolymer Research GroupFood Technology DivisionSchool of Industrial TechnologyUniversiti Sains MalaysiaPenangMalaysia
| | - Marzie Moslehi
- Engineering DepartmentAyatollah Amoli BranchIslamic Azad UniversityAmolIran
| | - Shima Jafarzadeh
- Food Biopolymer Research GroupFood Technology DivisionSchool of Industrial TechnologyUniversiti Sains MalaysiaPenangMalaysia
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29
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Fingerprinting and tagging detection of mycotoxins in agri-food products by surface-enhanced Raman spectroscopy: Principles and recent applications. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.02.013] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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30
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31
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Laser induced fluorescence spectroscopy for detection of Aflatoxin B1 contamination in peanut oil. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2021. [DOI: 10.1007/s11694-021-00821-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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32
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Bertani F, Businaro L, Gambacorta L, Mencattini A, Brenda D, Di Giuseppe D, De Ninno A, Solfrizzo M, Martinelli E, Gerardino A. Optical detection of aflatoxins B in grained almonds using fluorescence spectroscopy and machine learning algorithms. Food Control 2020. [DOI: 10.1016/j.foodcont.2019.107073] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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33
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Lopes M, Castilho MDC, Sanches-Silva A, Freitas A, Barbosa J, Gonçalves MJ, Cavaleiro C, Ramos F. Evaluation of the mycotoxins content of Salicornia spp .: a gourmet plant alternative to salt. FOOD ADDITIVES & CONTAMINANTS PART B-SURVEILLANCE 2020; 13:162-170. [PMID: 32216619 DOI: 10.1080/19393210.2020.1741692] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
SALICORNIA spp. are traditionally used in Asia as food, forage and medicine. In the West, its popularity has been increasing as an alternative to salt. Nevertheless, the potential presence of contaminants needs to be considered. Hence this study, which aimed to investigate the presence of potentially mycotoxigenic fungi and the occurrence of aflatoxins and ochratoxin A in Salicornia sampled in Portugal. Fungi isolation was performed by the direct plating technique in selective media. The mycotoxins contamination levels were determined by an Ultra-High Performance Liquid Chromatography coupled with Time-of-Flight Mass Spectrometry (UHPLC-ToF-MS). The results suggest that Salicornia is highly susceptible to fungi infestation, e.g. by Aspergillus and Penicillium species. Relevant levels of AFB1 > 5 µg/Kg and total aflatoxins (sum of AFB1, AFB2, AFG1 and AFG2) > 10 µg/Kg were found in various samples.
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Affiliation(s)
- Maria Lopes
- University of Coimbra, Faculty of Pharmacy, Coimbra, Azinhaga de Santa Comba , 3000-548 Coimbra, Portugal.,REQUIMTE/LAQV, Faculty of Pharmacy, University of Coimbra , Coimbra, Portugal
| | | | - Ana Sanches-Silva
- Strategic Unit for Research and Technology and Food Safety Services, National Institute for Agricultural and Veterinary Research (INIAV) , Vila do Conde, Portugal.,Center for Study in Animal Science (CECA)-ICETA, University of Porto , Porto, Portugal
| | - Andreia Freitas
- REQUIMTE/LAQV, Faculty of Pharmacy, University of Coimbra , Coimbra, Portugal.,Strategic Unit for Research and Technology and Food Safety Services, National Institute for Agricultural and Veterinary Research (INIAV) , Vila do Conde, Portugal
| | - Jorge Barbosa
- REQUIMTE/LAQV, Faculty of Pharmacy, University of Coimbra , Coimbra, Portugal.,Strategic Unit for Research and Technology and Food Safety Services, National Institute for Agricultural and Veterinary Research (INIAV) , Vila do Conde, Portugal
| | - Maria José Gonçalves
- University of Coimbra, Faculty of Pharmacy, Coimbra, Azinhaga de Santa Comba , 3000-548 Coimbra, Portugal.,Chemical Process Engineering and Forest Products Research Centre , Coimbra, Portugal
| | - Carlos Cavaleiro
- University of Coimbra, Faculty of Pharmacy, Coimbra, Azinhaga de Santa Comba , 3000-548 Coimbra, Portugal.,Chemical Process Engineering and Forest Products Research Centre , Coimbra, Portugal
| | - Fernando Ramos
- University of Coimbra, Faculty of Pharmacy, Coimbra, Azinhaga de Santa Comba , 3000-548 Coimbra, Portugal.,REQUIMTE/LAQV, Faculty of Pharmacy, University of Coimbra , Coimbra, Portugal
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34
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Jia B, Wang W, Ni X, Chu X, Yoon S, Lawrence K. Detection of mycotoxins and toxigenic fungi in cereal grains using vibrational spectroscopic techniques: a review. WORLD MYCOTOXIN J 2020. [DOI: 10.3920/wmj2019.2510] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Nutrition-rich cereal grains and oil seeds are the major sources of food and feed for human and livestock, respectively. Infected by fungi and contaminated with mycotoxins are serious problems worldwide for cereals and oil seeds before and after harvest. The growth and development activities of fungi consume seed nutrients and destroy seed structures, leading to dramatic declines of crop yield and quality. In addition, the toxic secondary metabolites produced by these fungi pose a well-known threat to both human and animals. The existence of fungi and mycotoxins has been a redoubtable problem worldwide for decades but tends to be a severe food safety issue in developing countries and regions, such as China and Africa. Detection of fungal infection at an early stage and of mycotoxin contaminants, even at a small amount, is of great significance to prevent harmful toxins from entering the food supply chains worldwide. This review focuses on the recent advancements in utilising infrared spectroscopy, Raman spectroscopy, and hyperspectral imaging to detect fungal infections and mycotoxin contaminants in cereals and oil seeds worldwide, with an emphasis on recent progress in China. Brief introduction of principles, and corresponding shortcomings, as well as latest advances of each technique, are also being presented herein.
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Affiliation(s)
- B. Jia
- Beijing Key Laboratory of Optimized Design for modern Agricultural Equipment, College of Engineering, China Agriculture University, No. 17 Tsinghua East Road, Beijing, 100083, China P.R
| | - W. Wang
- Beijing Key Laboratory of Optimized Design for modern Agricultural Equipment, College of Engineering, China Agriculture University, No. 17 Tsinghua East Road, Beijing, 100083, China P.R
| | - X.Z. Ni
- Crop Genetics and Breeding Research Unit, USDA-ARS, 2747 Davis Road, Tifton, GA 31793, USA
| | - X. Chu
- College of Mechanical and Electrical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China P.R
| | - S.C. Yoon
- Quality and Safety Assessment Research Unit, USDA-ARS, Athens, GA 30605, USA
| | - K.C. Lawrence
- Quality and Safety Assessment Research Unit, USDA-ARS, Athens, GA 30605, USA
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35
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Mycotoxins in cereal-based products during 24 years (1983–2017): A global systematic review. Trends Food Sci Technol 2019. [DOI: 10.1016/j.tifs.2019.06.007] [Citation(s) in RCA: 80] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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36
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Tao F, Yao H, Zhu F, Hruska Z, Liu Y, Rajasekaran K, Bhatnagar D. A Rapid and Nondestructive Method for Simultaneous Determination of Aflatoxigenic Fungus and Aflatoxin Contamination on Corn Kernels. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:5230-5239. [PMID: 30986348 DOI: 10.1021/acs.jafc.9b01044] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Conventional methods for detecting aflatoxigenic fungus and aflatoxin contamination are generally time-consuming, sample-destructive, and require skilled personnel to perform, making them impossible for large-scale nondestructive screening detection, real-time, and on-site analysis. Therefore, the potential of visible-near-infrared (Vis-NIR) spectroscopy over the 400-2500 nm spectral range was examined for determination of aflatoxigenic fungus infection and the corresponding aflatoxin contamination on corn kernels in a rapid and nondestructive manner. The two A. flavus strains, AF13 and AF38, were used to represent the aflatoxigenic fungus and nonaflatoxigenic fungus, respectively, for artificial inoculation on corn kernels. The partial least-squares discriminant analysis (PLS-DA) models based on different combinations of spectral range (I: 410-1070 nm; II: 1120-2470 nm), corn side (endosperm or germ side), spectral variable number (full spectra or selected variables), modeling approach (two-step or one-step), and classification threshold (20 or 100 ppb) were developed and their performances were compared. The first study focusing on detection of aflatoxigenic fungus-infected corn kernels showed that, in classifying the "control+AF38-inoculated" and AF13-inoculated corn kernels, the full spectral PLS-DA models using the preprocessed spectra over range II and one-step approach yielded more accurate prediction results than using the spectra over range I and the two-step approach. The advantage of the full spectral PLS-DA models established using one corn side than the other side were not consistent in the explored combination cases. The best full spectral PLS-DA model obtained was obtained using the germ-side spectra over range II with the one-step approach, which achieved an overall accuracy of 91.11%. The established CARS-PLSDA models performed better than the corresponding full-spectral PLS-DA models, with the better model achieved an overall accuracy of 97.78% in separating the AF13-inoculated corn kernels and the uninfected control and AF38-inoculated corn kernels. The second study focusing on the detection of aflatoxin-contaminated corn kernels showed that, based on the aflatoxin threshold of 20 and 100 ppb, the best overall accuracy in classifying the aflatoxin-contaminated and healthy corn kernels attained 86.67% and 84.44%, respectively, using the CARS-PLSDA models. The quantitative modeling results using partial least-squares regression (PLSR) obtained the correlation coefficient of prediction set ( RP) of 0.91, which indicated the possibility of using Vis-NIR spectroscopy to quantify aflatoxin concentration in aflatoxigenic fungus-infected corn kernels.
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Affiliation(s)
- Feifei Tao
- Geosystems Research Institute , Mississippi State University , 1021 Balch Boulevard , Stennis Space Center , Mississippi 39529 , United States
| | - Haibo Yao
- Geosystems Research Institute , Mississippi State University , 1021 Balch Boulevard , Stennis Space Center , Mississippi 39529 , United States
| | - Fengle Zhu
- Geosystems Research Institute , Mississippi State University , 1021 Balch Boulevard , Stennis Space Center , Mississippi 39529 , United States
| | - Zuzana Hruska
- Geosystems Research Institute , Mississippi State University , 1021 Balch Boulevard , Stennis Space Center , Mississippi 39529 , United States
| | - Yongliang Liu
- Southern Regional Research Center , USDA-ARS , New Orleans , Louisiana 70124 , United States
| | - Kanniah Rajasekaran
- Southern Regional Research Center , USDA-ARS , New Orleans , Louisiana 70124 , United States
| | - Deepak Bhatnagar
- Southern Regional Research Center , USDA-ARS , New Orleans , Louisiana 70124 , United States
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37
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Wu Q, Xu H. Application of multiplexing fiber optic laser induced fluorescence spectroscopy for detection of aflatoxin B 1 contaminated pistachio kernels. Food Chem 2019; 290:24-31. [PMID: 31000043 DOI: 10.1016/j.foodchem.2019.03.079] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 03/17/2019] [Accepted: 03/17/2019] [Indexed: 10/27/2022]
Abstract
To explore the effect of signal acquisition way on screening ability, the multiplexing fiber optic laser induced fluorescence spectroscopy (LIFS) system with one-, two- and three-probe, were employed respectively to detect artificially aflatoxin B1 (AFB1, 5, 10, 20, 30, and 50 ppb) contaminated 300 pistachio kernels in this study. Compared to one- and two-probe modes, highest accuracy (≥97.0%) by support vector machine (SVM) employing 390-660 nm were obtained using three-probe, which also showed the most attractive precision (root mean square error of prediction (RMSEP) < 4.5 ppb) for AFB1 by stepwise multiple linear regression (SMLR) using 174-1100 nm. These suggested that the effective collection of spatial information could improve the performance of model, and the three-probe LIFS had a preliminary feasibility for discriminating pistachios contaminated with low concentration of AFB1. Further study on classifying naturally contaminated samples is needed to validate the applicability of this system.
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Affiliation(s)
- Qifang Wu
- College of Biosystems Engineering and Food Science, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China; Key Laboratory of on Site Processing Equipment for Agricultural Products, Ministry of Agriculture, China
| | - Huirong Xu
- College of Biosystems Engineering and Food Science, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China; Key Laboratory of on Site Processing Equipment for Agricultural Products, Ministry of Agriculture, China.
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38
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Liu JJ, Cai Z, Liao Y, Zhao L, Moulin J, Hartmann C. Validation of a laser based in‐line aflatoxin sorting technology in Spanish type raw peanut in factory‐scale production conditions. J Food Saf 2018. [DOI: 10.1111/jfs.12611] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
| | | | | | - Lina Zhao
- Nestlé R&D (China) Ltd. Beijing China
| | | | - Christoph Hartmann
- Nestlé R&D (China) Ltd. Beijing China
- Nestlé Research Centre Lausanne Switzerland
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39
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Wu Q, Xu J, Xu H. Interactions of aflatoxin B1 and related secondary metabolites with native cyclodextrins and their potential utilization. Food Control 2018. [DOI: 10.1016/j.foodcont.2018.06.037] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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40
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Baldissera MD, Souza CF, Zeppenfeld CC, Garzon LR, Descovi SN, Da Silva AS, Stefani LM, Baldisserotto B. Purinergic signalling displays a pro-inflammatory profile in spleen and splenic lymphocytes of Rhamdia quelen fed with a diet contaminated by fungal mycotoxin: Involvement on disease pathogenesis. Microb Pathog 2018; 123:449-453. [PMID: 30086344 DOI: 10.1016/j.micpath.2018.08.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 08/02/2018] [Accepted: 08/04/2018] [Indexed: 11/24/2022]
Abstract
The spleen is an important secondary lymphatic organ that plays a key role in the immune and inflammatory responses of teleost fish. The purinergic signalling has been associated to these types of responses under pathological conditions by the regulation of extracellular adenosine triphosphate (ATP) and its metabolite adenosine (Ado), where both exert potent pro-inflammatory and anti-inflammatory profiles, respectively. The exact pathway involved on the immunotoxic effects of aflatoxin B1 (AFB1) in fish fed with diets containing this mycotoxin remains poorly understood. Thus, the aim of this study was to evaluate whether purinergic signalling exerts anti or pro-inflammatory effects in spleen and splenic lymphocytes of Rhamdia quelen fed with a diet contaminated by AFB1. Ectonucleoside triphosphate diphosphohydrolase (NTPDase) activity (ATP as substrate) decreased in spleen and splenic lymphocytes of fish fed with an AFB1-contaminated diet on day 21 post-feeding compared to fish fed with a basal diet; while adenosine deaminase (ADA) activity increased. No differences were observed between groups or over time regarding NTPDase (adenosine diphosphate as substrate) and 5'-nucleotidase activities. In summary, the purinergic signalling can be a pathway involved in the impairment of the immune and inflammatory responses in fish fed with an AFB1-contaminated diet, contributing to the immunotoxic effects of AFB1 in spleens of fish.
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Affiliation(s)
- Matheus D Baldissera
- Department of Microbiology and Parasitology, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil.
| | - Carine F Souza
- Department of Physiology and Pharmacology, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Carla Cristina Zeppenfeld
- Department of Physiology and Pharmacology, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Litiérri R Garzon
- Department of Microbiology and Parasitology, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Sharine N Descovi
- Department of Physiology and Pharmacology, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Aleksandro S Da Silva
- Department of Animal Science, Universidade do Estado de Santa Catarina, Chapecó, RS, Brazil
| | - Lenita M Stefani
- Department of Animal Science, Universidade do Estado de Santa Catarina, Chapecó, RS, Brazil
| | - Bernardo Baldisserotto
- Department of Physiology and Pharmacology, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
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