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Limaye A, Liu JR. Screening and Characterization of a Chryseobacterium timonianum Strain with Aflatoxin B1 Removal Ability. Microb Physiol 2024; 34:182-196. [PMID: 39137739 DOI: 10.1159/000540803] [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: 04/15/2023] [Accepted: 08/01/2024] [Indexed: 08/15/2024]
Abstract
INTRODUCTION Aflatoxin B1 (AFB1) is a potent hepatocarcinogenic mycotoxin found in animal feed and human food components. AFB1 contamination poses severe food safety and economic consequences. METHODS In this study, we used a coumarin-selective medium to isolate bacterial strains that can remove AFB1. Among the isolated bacterial strains, strain c4a exhibited the highest AFB1 removal activity. This strain was subjected to biochemical and phylogenetic characterization. The AFB1 removal activity of the extracellular supernatant of this strain was optimized for growth medium, reaction temperature, pH, and metal ions. The degradation products were analyzed using UPLC-ESI MS/MS. RESULTS Strain c4a was found to be most closely related to Chryseobacterium timonianum. The extracellular supernatant of C. timonianum c4a grown in a modified nutrient broth (with gelatin peptone and beef extract in a 4:1 ratio) demonstrated the highest AFB1 removal activity when incubated with 1 ppm AFB1 at 60°C, pH 8, and Mn2+ or Mg2+ supplementation for 72 h. Surprisingly, the autoclaved extracellular supernatant also retained AFB1 removal activity. UPLC-ESI MS/MS analysis suggested that AFB1 was transformed into a metabolite (m/z value 285.08) by water molecule addition on furan ring double bond. CONCLUSION The AFB1 removal activity of C. timonianum c4a was extracellular, constitutive, and highly thermostable, structurally transforming AFB1 into a much less toxic product. Herein, we present the first evidence of thermostable AFB1 removal activity of a strain belonging to C. timonianum.
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Affiliation(s)
- Aniket Limaye
- Institute of Biotechnology, National Taiwan University, Taipei, Taiwan
| | - Je-Ruei Liu
- Institute of Biotechnology, National Taiwan University, Taipei, Taiwan
- Department of Animal Science and Technology, National Taiwan University, Taipei, Taiwan
- Center for Biotechnology, National Taiwan University, Taipei, Taiwan
- Agricultural Biotechnology Research Center, Academia Sinica, Taipei, Taiwan
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Wang Y, Shang J, Cai M, Liu Y, Yang K. Detoxification of mycotoxins in agricultural products by non-thermal physical technologies: a review of the past five years. Crit Rev Food Sci Nutr 2023; 63:11668-11678. [PMID: 35791798 DOI: 10.1080/10408398.2022.2095554] [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: 11/03/2022]
Abstract
Mycotoxins produced by Aspergillus spp., Penicillium spp. and Fusarium spp. with small molecular weight and thermal stability, are highly toxic and carcinogenic secondary metabolites. Mycotoxins have caused widespread concern regarding food safety internationally because of their adverse effects on the health of humans and animals, and the major economic losses they cause. There is an urgent need to find ways to reduce or eliminate the impact of mycotoxins in food and feed without introducing new safety issues, or reducing nutritional quality. Non-thermal physical technology is the basis for new techniques to degrade mycotoxins, with great potential for practical detoxification applications in the food industry. Compared with conventional thermal treatments, non-thermal physical detoxification technologies are easier to apply and effective, with less adverse impact on the nutritional value of agricultural products. The advantages, limitations and development prospects of these new detoxification technologies are discussed. Further studies are recommended to standardize the treatment conditions for each detoxification technology, evaluate the safety of the degradation products, and to combine different detoxification technologies to achieve synergistic effects. This will facilitate realization of the great potential of the new technologies and the development of practical applications.
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Affiliation(s)
- Yan Wang
- College of Food science and Technology, Zhejiang University of Technology/Key Laboratory of Food Macromolecular Resources Processing Technology Research (Zhejiang University of Technology), China National Light Industry, Hangzhou, Zhejiang, P. R. China
| | - Jie Shang
- College of Food science and Technology, Zhejiang University of Technology/Key Laboratory of Food Macromolecular Resources Processing Technology Research (Zhejiang University of Technology), China National Light Industry, Hangzhou, Zhejiang, P. R. China
| | - Ming Cai
- College of Food science and Technology, Zhejiang University of Technology/Key Laboratory of Food Macromolecular Resources Processing Technology Research (Zhejiang University of Technology), China National Light Industry, Hangzhou, Zhejiang, P. R. China
| | - Yang Liu
- School of Food Science and Engineering, Foshan University/South China Food Safety Research Center, Foshan, Guangdong, P. R. China
| | - Kai Yang
- College of Food science and Technology, Zhejiang University of Technology/Key Laboratory of Food Macromolecular Resources Processing Technology Research (Zhejiang University of Technology), China National Light Industry, Hangzhou, Zhejiang, P. R. China
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Peng Z, Zhang Y, Ai Z, Pandiselvam R, Guo J, Kothakota A, Liu Y. Current physical techniques for the degradation of aflatoxins in food and feed: Safety evaluation methods, degradation mechanisms and products. Compr Rev Food Sci Food Saf 2023; 22:4030-4052. [PMID: 37306549 DOI: 10.1111/1541-4337.13197] [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: 11/15/2022] [Revised: 05/16/2023] [Accepted: 05/26/2023] [Indexed: 06/13/2023]
Abstract
Aflatoxins are the most toxic natural mycotoxins discovered so far, posing a serious menace to the food safety and trading economy of the world, especially developing countries. How to effectively detoxify has persistently occupied a place on the list of "global hot-point" concerns. Among the developed detoxification methods, physical methods, as the authoritative techniques for aflatoxins degradation, could rapidly induce irreversible denaturation of aflatoxins. This review presents a brief overview of aflatoxins detection and degradation product structure identification methods. Four main safety evaluation methods for aflatoxins and degradation product toxicity assessment are highlighted combined with an update on research of aflatoxins decontamination in the last decade. Furthermore, the latest applications, degradation mechanisms and products of physical aflatoxin decontamination techniques including microwave heating, irradiation, pulsed light, cold plasma and ultrasound are discussed in detail. Regulatory issues related to "detoxification" are also explained. Finally, we put forward the challenges and future work in studying aflatoxin degradation based on the existing research. The purpose of supplying this information is to help researchers have a deeper understanding on the degradation of aflatoxins, break through the existing bottleneck, and further improve and innovate the detoxification methods of aflatoxins.
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Affiliation(s)
- Zekang Peng
- College of Engineering, China Agricultural University, Beijing, China
| | - Yue Zhang
- College of Engineering, China Agricultural University, Beijing, China
| | - Ziping Ai
- College of Engineering, China Agricultural University, Beijing, China
| | - Ravi Pandiselvam
- Division of Physiology, Biochemistry and Post-Harvest Technology, ICAR-Central Plantation Crops Research Institute, Kasaragod, Kerala, India
| | - Jiale Guo
- College of Engineering, China Agricultural University, Beijing, China
| | - Anjineyulu Kothakota
- Agro-Processing & Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (NIIST), Trivandrum, Kerala, India
| | - Yanhong Liu
- College of Engineering, China Agricultural University, Beijing, China
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4
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Han Y, Zhou Z, Cao Z, Zong W, Zhao G, Wang X. Degradation of Alternaria mycotoxins by UV-C irradiation: Effect of selected process and exposure to food components. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2023; 40:134-146. [PMID: 36472620 DOI: 10.1080/19440049.2022.2151646] [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: 12/12/2022]
Abstract
Alternariol (AOH) and alternariol monomethyl ether (AME) are two Alternaria mycotoxins with high occurrence rates in food systems. This study aimed to investigate the photodegradation of AOH and AME by ultraviolet-C (UV-C) irradiation. The effect of UV-C intensity, pH, treatment time, solvents and the exposure of food components were evaluated. After treated by UV-C irradiation at 3500 μW/cm2 for 90 min, AOH samples in methanol, aqueous solution and solid state were degraded by 89.1%, 72.9% and 53.2%, respectively, while the degradation percentages of AME were 86.6%, 50.1% and 11.1%, respectively. Increasing irradiation intensity and prolonging irradiation time could significantly facilitate the degradation of AOH and AME. An alkaline environment (pH = 11) was more conducive to the degradation of toxins. In addition, 2.5 mg mL-1 citric acid or malic acid increased the photodegradation of AOH and AME to 94.6% and 95.3%, 93.2% and 70.5%, respectively. However, protein, polyphenols and vitamin C exerted inhibitory effects on the degradation, while 10% glucose or sucrose reduced the photodegradation of AOH and AME to 65.9% and 40.3%. UV-C treatment could effectively reduce the content of AOH and AME, with the highest efficiency achieved in methanol and alkaline environment. By contrast, UV-C irradiation is more effective in degrading toxins in some liquid foods rich in organic acids but lacking in protein. The utilization of UV-C radiation appears to be a potentially useful approach for decreasing the underlying risk of Alternaria mycotoxin contamination in foods.
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Affiliation(s)
- Yike Han
- School of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou, China
| | - Ziang Zhou
- School of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou, China
| | - Zihan Cao
- School of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou, China
| | - Wei Zong
- School of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou, China
| | - Guangyuan Zhao
- School of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou, China
| | - Xiaoyuan Wang
- School of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou, China
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Sánchez-Bravo P, Noguera-Artiaga L, Gómez-López VM, Carbonell-Barrachina ÁA, Gabaldón JA, Pérez-López AJ. Impact of Non-Thermal Technologies on the Quality of Nuts: A Review. Foods 2022; 11:3891. [PMID: 36496699 PMCID: PMC9739324 DOI: 10.3390/foods11233891] [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: 11/10/2022] [Revised: 11/24/2022] [Accepted: 11/30/2022] [Indexed: 12/04/2022] Open
Abstract
Nuts are widely consumed worldwide, mainly due to their characteristic flavor and texture, ease of consumption, and their functional properties. In addition, consumers increasingly demand natural or slightly processed foods with high quality. Consequently, non-thermal treatments are a viable alternative to thermal treatments used to guarantee safety and long shelf life, which produce undesirable changes that affect the sensory quality of nuts. Non-thermal treatments can achieve results similar to those of the traditional (thermal) ones in terms of food safety, while ensuring minimal loss of bioactive compounds and sensory properties, thus obtaining a product as similar as possible to the fresh one. This article focuses on a review of the main non-thermal treatments currently available for nuts (cold plasma, high pressure, irradiation, pulsed electric field, pulsed light, ultrasound and ultraviolet light) in relation to their effects on the quality and safety of nuts. All the treatments studied have shown promise with regard to the inhibition of the main microorganisms affecting nuts (e.g., Aspergillus, Salmonella, and E. coli). Furthermore, by optimizing the treatment, it is possible to maintain the organoleptic and functional properties of these products.
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Affiliation(s)
- Paola Sánchez-Bravo
- Laboratory of Fitoquímica y Alimentos Saludables (LabFAS), CEBAS-CSIC, University of Murcia, 25, 30100 Murcia, Spain
- Department of AgroFood Technology, Miguel Hernandez University, Carretera de Beniel, km 3.2, 03312 Orihuela, Spain
| | - Luis Noguera-Artiaga
- Department of AgroFood Technology, Miguel Hernandez University, Carretera de Beniel, km 3.2, 03312 Orihuela, Spain
| | - Vicente M. Gómez-López
- Catedra Alimentos Para la Salud, Campus de los Jerónimos, Universidad Católica San Antonio de Murcia (UCAM), 30107 Murcia, Spain
| | | | - José A. Gabaldón
- Catedra Alimentos Para la Salud, Campus de los Jerónimos, Universidad Católica San Antonio de Murcia (UCAM), 30107 Murcia, Spain
| | - Antonio J. Pérez-López
- Department of Food Technology and Nutrition, Catholic University of San Antonio, Campus de los Jerónimos s/n, 30107 Murcia, Spain
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Zhu C, Jiang H, Chen Q. High Precisive Prediction of Aflatoxin B1 in Pressing Peanut Oil Using Raman Spectra Combined with Multivariate Data Analysis. Foods 2022; 11:foods11111565. [PMID: 35681315 PMCID: PMC9180714 DOI: 10.3390/foods11111565] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 05/20/2022] [Accepted: 05/24/2022] [Indexed: 12/12/2022] Open
Abstract
This study proposes a label-free rapid detection method for aflatoxin B1 (AFB1) in pressing peanut oil based on Raman spectroscopy technology combined with appropriate chemometric methods. A DXR laser Raman spectrometer was used to acquire the Raman spectra of the pressed peanut oil samples, and the obtained spectra were preprocessed by wavelet transform (WT) combined with adaptive iteratively reweighted penalized least squares (airPLS). The competitive adaptive reweighted sampling (CARS) method was used to optimize the characteristic bands of the Raman spectra pretreated by the WT + airPLS, and a partial least squares (PLS) detection model for the AFB1 content was established based on the features optimized. The results obtained showed that the root mean square error of prediction (RMSEP) and determination coefficient of prediction (RP2) of the optimal CARS-PLS model in the prediction set were 22.6 µg/kg and 0.99, respectively. The results demonstrate that the Raman spectroscopy combined with appropriate chemometrics can be used to quickly detect the safety of edible oil with high precision. The overall results can provide a technical basis and method reference for the design and development of the portable Raman spectroscopy system for the quality and safety detection of edible oil storage, and also provide a green tool for fast on-site analysis for regulatory authorities of edible oil and production enterprises of edible oil.
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Affiliation(s)
- Chengyun Zhu
- School of Physics and Electronic Engineering, Yancheng Teachers University, Yancheng 224007, China;
- Jiangsu Intelligent Optoelectronic Devices and Measurement and Control Engineering Research Center, Yancheng 224007, China
| | - Hui Jiang
- School of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, China
- Correspondence:
| | - Quansheng Chen
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China;
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Nguyen T, Palmer J, Loo T, Shilton A, Petcu M, Newson HL, Flint S. Investigation of UV light treatment (254 nm) on the reduction of aflatoxin M1 in skim milk and degradation products after treatment. Food Chem 2022; 390:133165. [PMID: 35561509 DOI: 10.1016/j.foodchem.2022.133165] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 04/20/2022] [Accepted: 05/03/2022] [Indexed: 11/04/2022]
Abstract
This study investigates the reduction of aflatoxin M1 (AFM1) in skim milk by using ultraviolet light at 254 nm and the effects of influencing factors on the efficacy including treatment time (min), depth of samples (mm), contamination level (μg L-1), stirring, temperature, and fat content in milk. The colour and pH of milk samples were measured to evaluate the influence of the treatment on these values. It was found that short-wave ultraviolet radiation (UVC) reduced up to 50% of AFM1 in milk after 20 min of treatment regardless of the initial AFM1 contamination level. Treatment time, depth of samples, and stirring were all found to significantly (P < 0.05) enhance the reduction of AFM1. The milk colour was affected but there was no influence on the pH of milk samples at any duration of UV exposure. It is concluded that UVC light treatment has the potential to reduce AFM1 in milk.
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Affiliation(s)
- Thu Nguyen
- School of Food and Advanced Technology, Massey University, New Zealand.
| | - Jon Palmer
- School of Food and Advanced Technology, Massey University, New Zealand
| | - Trevor Loo
- School of Fundamental Sciences, Massey University, New Zealand
| | - Andrew Shilton
- School of Food and Advanced Technology, Massey University, New Zealand
| | | | | | - Steve Flint
- School of Food and Advanced Technology, Massey University, New Zealand
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9
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Shen MH, Singh RK. Effective UV wavelength range for increasing aflatoxins reduction and decreasing oil deterioration in contaminated peanuts. Food Res Int 2022; 154:111016. [DOI: 10.1016/j.foodres.2022.111016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 02/11/2022] [Accepted: 02/12/2022] [Indexed: 12/25/2022]
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10
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Evaluation of ultraviolet irradiation effects on Aspergillus flavus and Aflatoxin B1 in maize and peanut using innovative vibrating decontamination equipment. Food Control 2022. [DOI: 10.1016/j.foodcont.2021.108691] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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11
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Kurup AH, Patras A, Pendyala B, Vergne MJ, Bansode RR. Evaluation of Ultraviolet-Light (UV-A) Emitting Diodes Technology on the Reduction of Spiked Aflatoxin B1 and Aflatoxin M1 in Whole Milk. FOOD BIOPROCESS TECH 2022. [DOI: 10.1007/s11947-021-02731-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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12
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Gibellato S, Dalsóquio L, do Nascimento I, Alvarez T. Current and promising strategies to prevent and reduce aflatoxin contamination in grains and food matrices. WORLD MYCOTOXIN J 2021. [DOI: 10.3920/wmj2020.2559] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Mycotoxins are secondary metabolites produced by filamentous fungi that colonise various crops around the world and cause major damage to the agro-industrial sector on a global scale. Considering the estimative of population growth in the next decades, it is of fundamental importance the implementation of practices that help prevent the economics and social impacts of aflatoxin contamination. Even though various approaches have been developed – including physical, chemical and biological approaches – there is not yet one that strikes a balance in terms of safety, food quality and cost, especially when considering large scale application. In this review, we present a compilation of advantages and disadvantages of different strategies for prevention and reduction of aflatoxin contamination. Biological approaches represent the trend in innovations mainly due to their specificity and versatility, since it is possible to consider the utilisation of whole microorganisms, culture supernatants, purified enzymes or even genetic engineering. However, challenges related to improvement of the efficiency of such methods and ensuring safety of treated foods still need to be overcome.
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Affiliation(s)
- S.L. Gibellato
- Graduate Programme in Industrial Biotechnology, Universidade Positivo, Curitiba, Paraná, 81280-330, Brazil
| | - L.F. Dalsóquio
- Bioprocesses and Biotechnology Engineering, Universidade Positivo, Curitiba, Paraná, 81280-330, Brazil
| | - I.C.A. do Nascimento
- Bioprocesses and Biotechnology Engineering, Universidade Positivo, Curitiba, Paraná, 81280-330, Brazil
| | - T.M. Alvarez
- Graduate Programme in Industrial Biotechnology, Universidade Positivo, Curitiba, Paraná, 81280-330, Brazil
- Bioprocesses and Biotechnology Engineering, Universidade Positivo, Curitiba, Paraná, 81280-330, Brazil
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Aflatoxin contamination in food crops: causes, detection, and management: a review. FOOD PRODUCTION, PROCESSING AND NUTRITION 2021. [DOI: 10.1186/s43014-021-00064-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
AbstractMycotoxins are secondary metabolites produced by several fungal species and molds. Under favorable conditions like high temperature and moisture, they contaminate a large number of food commodities and regional crops during pre and post-harvesting. Aflatoxin is the main mycotoxin that harm animal and human health due to its carcinogenic nature. Aflatoxins are mainly released by Aspergillus flavus and Aspergillus parasiticus. AFB1 constitutes the most harmful type of aflatoxins and is a potent hepato-carcinogenic, mutagenic, teratogenic and it suppresses the immune system. To maintain food safety and to prevent aflatoxin contamination in food crops, combined approaches of using resistant varieties along with recommended farming practices should be followed. This review concentrates on various aspects of mycotoxin contamination in crops and recent methods to prevent or minimize the contamination.
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Rezaie MR, Zareie N. Impact of granite irradiation on aflatoxin reduction in pistachio. Toxicon 2021; 199:7-11. [PMID: 34051219 DOI: 10.1016/j.toxicon.2021.05.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 05/10/2021] [Accepted: 05/18/2021] [Indexed: 10/21/2022]
Abstract
In this research with the effect of radioactive granite gamma radiation, the reduction of aflatoxin B1 in pistachios was examined in three steps. In the first step, the aflatoxin reduction in small packets by granite bed was tested. In this step, the aflatoxin level of 300 g pistachios packets was reduced up to 81.3 ± 1.5 percent by 4 kg granite bed after 4 days. After observation of aflatoxin reduction by granite bed, the second step was done with increasing the granite and pistachio mass and irradiation time. In this step, the aflatoxin level of 1 kg pistachios was reduced up to 4949 ± 2.6 percent by 6 kg granite after 9 days. According to the results, the aflatoxin reduction of 1 kg pistachios by 1 kg granite after 1 days (as aflatoxin Reduction Coefficient (ARC)) was calculated as ARC = 0.0090 ± 0.0025 (kg. day)-1. The aflatoxin types of detected in this research were B1 and B2 types that AFB2 level was much less than one. Therefore the effect of granite irradiation on AFB2 reduction wasn't considered. The final step was designed for testing the aflatoxin Reduction Coefficient (ARC). This step was shown that the confidence level between practical result and aflatoxin Reduction Coefficient (ARC) result is about 97 percent. The results indicated that the level of fat and protein of pistachios by granite gamma radiation did not change after 9 days. Therefore the granite irradiation can be used for aflatoxin reduction of pistachios.
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Affiliation(s)
- Mohammad Raza Rezaie
- Department of Nuclear Engineering, Faculty of Sciences and Modern Technologies, Graduate University of Advanced Technology, Kerman, Iran.
| | - Neda Zareie
- Department of Nuclear Engineering, Faculty of Sciences and Modern Technologies, Graduate University of Advanced Technology, Kerman, Iran
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Hojnik N, Modic M, Walsh JL, Žigon D, Javornik U, Plavec J, Žegura B, Filipič M, Cvelbar U. Unravelling the pathways of air plasma induced aflatoxin B 1 degradation and detoxification. JOURNAL OF HAZARDOUS MATERIALS 2021; 403:123593. [PMID: 33264852 DOI: 10.1016/j.jhazmat.2020.123593] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 07/24/2020] [Accepted: 07/28/2020] [Indexed: 06/12/2023]
Abstract
Aflatoxins are considered to be a critical dietary risk factor for humans, with aflatoxin B1 (AFB1) identified by the WHO as one of the most potent natural group 1 carcinogen. Despite this, more than half of the world's population is chronically exposed, resulting in up to 170,000 annual cases of human hepatocellular carcinoma cancer. Here we report an easily implemented approach using non-equilibrium plasma for targeted degradation of AFB1. Apart from reaching the 100 % decontamination in less than 120 s of treatment, this is the first study that combines hypersensitive analytical methods such as high-resolution mass spectroscopy (HRMS) and nuclear magnetic resonance spectroscopy (NMR) to provide a detailed description of CAP mediated AFB1 degradation. We identify rapid scission of the vinyl bond between 8- and 9-position on the terminal furan ring of AFB1 as being of paramount importance for the suppression of toxic potential, which is confirmed by the examination of both cytotoxicity and genotoxicity. The plasma reactive species mediated degradation pathways are elucidated, and it is demonstrated that the approach not only renders AFB1 harmless but does so in order of magnitude less time than UV irradiation as one of the other non-thermal methods currently under investigation.
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Affiliation(s)
- Nataša Hojnik
- Jozef Stefan Institute, Ljubljana, Slovenia; Jozef Stefan International Postgraduate School, Ljubljana, Slovenia; Department of Electrical Engineering and Electronics, University of Liverpool, Liverpool, United Kingdom
| | | | - James L Walsh
- Department of Electrical Engineering and Electronics, University of Liverpool, Liverpool, United Kingdom
| | | | - Uroš Javornik
- Slovenian NMR Centre, National Institute of Chemistry, Hajdrihova 19, SI-1001, Ljubljana, Slovenia
| | - Janez Plavec
- Slovenian NMR Centre, National Institute of Chemistry, Hajdrihova 19, SI-1001, Ljubljana, Slovenia
| | - Bojana Žegura
- Department of Genetic Toxicology and Cancer Biology National Institute of Biology, Večna pot 111, 1000, Ljubljana, Slovenia
| | - Metka Filipič
- Department of Genetic Toxicology and Cancer Biology National Institute of Biology, Večna pot 111, 1000, Ljubljana, Slovenia
| | - Uroš Cvelbar
- Jozef Stefan Institute, Ljubljana, Slovenia; Jozef Stefan International Postgraduate School, Ljubljana, Slovenia.
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Kaale L, Kimanya M, Macha I, Mlalila N. Aflatoxin contamination and recommendations to improve its control: a review. WORLD MYCOTOXIN J 2021. [DOI: 10.3920/wmj2020.2599] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Aflatoxin producing fungi cause contamination of food and feed resulting in health hazards and economic loss. It is imperative to develop workable control measures throughout the food chain to prevent and reduce aflatoxin contamination. This is a critical review of contemporary published papers in the field. It is a review of reports from the original aflatoxin researches conducted on foods, from 2015-2020. Most of the reports show high aflatoxin contaminations in food at levels that exceed a regulatory limit of 20 μg/kg and 4 μg/kg set for foods for human consumption in the USA and European Union, respectively. The highest aflatoxin concentration (3,760 μg/kg) was observed in maize. Some of the strategies being deployed in aflatoxin control include application of biocontrol agents, specifically of Aflasafe™, development of resistant crop varieties, and application of other good agricultural practices. We recommend the adoption of emerging technologies such as combined methods technology (CMT) or hurdle technology, one health concept (OHC), improved regulations, on-line monitoring of aflatoxins, and creative art intervention (CAI) to prevent or restrict the growth of target aflatoxin causative fungi.
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Affiliation(s)
- L.D. Kaale
- University of Dar es Salaam (UDSM), Department of Food Science and Technology, P.O. Box 35134, Dar es Salaam, Tanzania
| | - M.E. Kimanya
- School of Life Sciences and Bioengineering, Nelson Mandela African Institution of Science and Technology, P.O. Box 447, Arusha, Tanzania
| | - I.J. Macha
- University of Dar es Salaam (UDSM), Department of Mechanical and Industrial Engineering, P.O. Box 35131, Dar es Salaam, Tanzania
| | - N. Mlalila
- University of Dar es Salaam (UDSM), Department of Food Science and Technology, P.O. Box 35134, Dar es Salaam, Tanzania
- Ministry of Livestock and Fisheries, P.O. Box 2847, Dodoma, Tanzania
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Shen MH, Singh RK. Effect of rotating peanuts on aflatoxin detoxification by ultraviolet C light and irradiation uniformity evaluated by AgCl-based dosimeter. Food Control 2021. [DOI: 10.1016/j.foodcont.2020.107533] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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He J, Evans NM, Liu H, Zhu Y, Zhou T, Shao S. UV treatment for degradation of chemical contaminants in food: A review. Compr Rev Food Sci Food Saf 2021; 20:1857-1886. [PMID: 33486857 DOI: 10.1111/1541-4337.12698] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 11/09/2020] [Accepted: 12/01/2020] [Indexed: 12/30/2022]
Abstract
Application of ultraviolet (UV) irradiation for the degradation of chemical contaminants in food products has gained more and more interest in the past two decades. The majority of the research in this field was on mycotoxins, especially aflatoxins and patulin, with limited studies on pesticide residues and other chemical contaminants in food. These studies have been focused on identifying the structure and toxicity of degradation products, investigating the influence of UV treatment factors on the degradation efficiency, determining the impact of UV treatment on the quality of food products, and developing updated UV treatment methods such as TiO2 induced photocatalytic degradation. The summary of published literatures provided insights into future research opportunities in this area, which include determining a standard for the UV treatment description, working with naturally contaminated samples rather than artificially spiked samples, conducting pilot plant or industrial scale studies, examining more targets and conducting multi-targets studies, and developing more innovative methods for UV treatment.
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Affiliation(s)
- Jiang He
- Guelph Research and Development Centre, Agriculture and Agri-Food Canada, Guelph, Ontario, Canada.,College of Life and Environmental Science, Hunan University of Arts and Science, Changde, Hunan, China
| | - Natasha Marie Evans
- Guelph Research and Development Centre, Agriculture and Agri-Food Canada, Guelph, Ontario, Canada
| | - Huaizhi Liu
- Guelph Research and Development Centre, Agriculture and Agri-Food Canada, Guelph, Ontario, Canada
| | - Yan Zhu
- Guelph Research and Development Centre, Agriculture and Agri-Food Canada, Guelph, Ontario, Canada
| | - Ting Zhou
- Guelph Research and Development Centre, Agriculture and Agri-Food Canada, Guelph, Ontario, Canada
| | - Suqin Shao
- Guelph Research and Development Centre, Agriculture and Agri-Food Canada, Guelph, Ontario, Canada
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19
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Guo Y, Zhao L, Ma Q, Ji C. Novel strategies for degradation of aflatoxins in food and feed: A review. Food Res Int 2020; 140:109878. [PMID: 33648196 DOI: 10.1016/j.foodres.2020.109878] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Revised: 10/31/2020] [Accepted: 11/01/2020] [Indexed: 02/06/2023]
Abstract
Aflatoxins are toxic secondary metabolites mainly produced by Aspergillus fungi, posing high carcinogenic potency in humans and animals. Dietary exposure to aflatoxins is a global problem in both developed and developing countries especially where there is poor regulation of their levels in food and feed. Thus, academics have been striving over the decades to develop effective strategies for degrading aflatoxins in food and feed. These strategies are technologically diverse and based on physical, chemical, or biological principles. This review summarizes the recent progress on novel aflatoxin degradation strategies including irradiation, cold plasma, ozone, electrolyzed oxidizing water, organic acids, natural plant extracts, microorganisms and enzymes. A clear understanding of the detoxification efficiency, mechanism of action, degradation products, application potential and current limitations of these methods is presented. In addition, the development and future perspective of nanozymes in aflatoxins degradation are introduced.
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Affiliation(s)
- Yongpeng Guo
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China.
| | - Lihong Zhao
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China.
| | - Qiugang Ma
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China.
| | - Cheng Ji
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China.
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20
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Sun S, Zhao R, Xie Y, Liu Y. Reduction of aflatoxin B 1 by magnetic graphene oxide/TiO 2 nanocomposite and its effect on quality of corn oil. Food Chem 2020; 343:128521. [PMID: 33162254 DOI: 10.1016/j.foodchem.2020.128521] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Revised: 10/28/2020] [Accepted: 10/28/2020] [Indexed: 12/28/2022]
Abstract
Magnetic graphene oxide/TiO2(MGO/TiO2) nanocomposite was synthesized for the reduction of aflatoxin B1 (AFB1) in corn oil. The photodegradation of synthesized nanocomposites on AFB1 in corn oil under different treatment conditions and its effect on the quality of corn oil were investigated. The doping of magnetic GO effectively enhanced the photocatalytic activity of TiO2 both under UV light and visible light. The reduction of AFB1 in corn oil reached 96.4% after illumination for 120 min under UV-Vis light. Holes (h+) and the hydroxyl radicals (OH) were found to play important roles in the reduction of AFB1, and three transformation products were confirmed by electrospray ionization mass spectrometry (ESI/MS) analysis. In addition, the quality of the treated corn oil was still acceptable after storage for 180 days. This study provides an effective, environmental-friendly and practical approach for reduction of AFB1 in oil products.
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Affiliation(s)
- Shumin Sun
- College of Food Science and Engineering, Henan Key Laboratory of Cereal and Oil Food Safety Inspection and Control, Henan University of Technology, Lianhua Street, Zhengzhou 450001, China
| | - Ran Zhao
- College of Food Science and Engineering, Henan Key Laboratory of Cereal and Oil Food Safety Inspection and Control, Henan University of Technology, Lianhua Street, Zhengzhou 450001, China
| | - Yanli Xie
- College of Food Science and Engineering, Henan Key Laboratory of Cereal and Oil Food Safety Inspection and Control, Henan University of Technology, Lianhua Street, Zhengzhou 450001, China.
| | - Yong Liu
- College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China
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21
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Conte G, Fontanelli M, Galli F, Cotrozzi L, Pagni L, Pellegrini E. Mycotoxins in Feed and Food and the Role of Ozone in Their Detoxification and Degradation: An Update. Toxins (Basel) 2020; 12:E486. [PMID: 32751684 PMCID: PMC7472270 DOI: 10.3390/toxins12080486] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 07/20/2020] [Accepted: 07/28/2020] [Indexed: 02/07/2023] Open
Abstract
Mycotoxins are secondary metabolites produced by some filamentous fungi, which can cause toxicity in animal species, including humans. Because of their high toxicological impacts, mycotoxins have received significant consideration, leading to the definition of strict legislative thresholds and limits in many areas of the world. Mycotoxins can reduce farm profits not only through reduced crop quality and product refusal, but also through a reduction in animal productivity and health. This paper briefly addresses the impacts of mycotoxin contamination of feed and food on animal and human health, and describes the main pre- and post-harvest systems to control their levels, including genetic, agronomic, biological, chemical, and physical methods. It so highlights (i) the lack of effective and straightforward solutions to control mycotoxin contamination in the field, at pre-harvest, as well as later post-harvest; and (ii) the increasing demand for novel methods to control mycotoxin infections, intoxications, and diseases, without leaving toxic chemical residues in the food and feed chain. Thus, the broad objective of the present study was to review the literature on the use of ozone for mycotoxin decontamination, proposing this gaseous air pollutant as a powerful tool to detoxify mycotoxins from feed and food.
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Affiliation(s)
| | | | | | - Lorenzo Cotrozzi
- Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80, 56124 Pisa, Italy; (G.C.); (M.F.); (F.G.); (L.P.); (E.P.)
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22
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Liu Z, Zhao H, Yang G, He K, Sun X, Wang Z, Wang D, Qiu J. Study of photodegradation kinetics of aflatoxins in cereals using trilinear component modeling of excitation-emission matrix fluorescence data. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 235:118266. [PMID: 32217441 DOI: 10.1016/j.saa.2020.118266] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 03/04/2020] [Accepted: 03/15/2020] [Indexed: 06/10/2023]
Abstract
In this work, a smart analytical strategy that combines excitation-emission matrix (EEM) fluorescence detection with alternating trilinear decomposition (ATLD) algorithm was developed for fast, on-line and interference-free study on the photodegradation kinetics of aflatoxin B1 (AFB1) and aflatoxin G1 (AFG1) in rice and wheat under UV-Vis light (λ = 250-500 nm) treatment. With the aid of prominent "second-order advantage" of ATLD method, pure fluorescence signals of two targeted analytes can be directly resolved out from heavily overlapping spectral environment and accurately quantified even in the presence of unknown matrix interferences. Cereal samples in kinetic processing of photodegradation were detected without complex pretreatment steps except for a simple extraction using methanol/water solution (4:1, v/v), which solves the problem facing varied matrix interferences in the case of on-line monitoring of aflatoxins. The kinetic signals of analytes of interest were directly extracted regardless of varied matrix backgrounds of various cereals. The kinetic curves and degradation speeds of AFB1 and AFG1 can be estimated by resolved quantitative data, optimal radiation conditions including 365 nm wavelength and 35 J m-2 density were discussed for high-efficiency detoxification control of aflatoxins in rice and wheat. This strategy was promising to be as an alternative tool for eco-friendly photodegradation kinetic study of mycotoxins or other hazards in complex foodstuff matrixes.
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Affiliation(s)
- Zhi Liu
- College of Agriculture and Biotechnology, Hunan University of Humanities, Science and Technology, Loudi 417000, China; State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Quality and Standards for Agricultural Products, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Huiyu Zhao
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Quality and Standards for Agricultural Products, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Guilin Yang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Quality and Standards for Agricultural Products, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China.
| | - Kaiyu He
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Quality and Standards for Agricultural Products, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Xiaodong Sun
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Ziyan Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Quality and Standards for Agricultural Products, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Dou Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Quality and Standards for Agricultural Products, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Jing Qiu
- Institute of Quality Standard & Testing Technology for Agro-Products, Key Laboratory of Agro-product Quality and Safety, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
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23
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Li P, Su R, Yin R, Lai D, Wang M, Liu Y, Zhou L. Detoxification of Mycotoxins through Biotransformation. Toxins (Basel) 2020; 12:toxins12020121. [PMID: 32075201 PMCID: PMC7076809 DOI: 10.3390/toxins12020121] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 02/08/2020] [Accepted: 02/12/2020] [Indexed: 01/18/2023] Open
Abstract
Mycotoxins are toxic fungal secondary metabolites that pose a major threat to the safety of food and feed. Mycotoxins are usually converted into less toxic or non-toxic metabolites through biotransformation that are often made by living organisms as well as the isolated enzymes. The conversions mainly include hydroxylation, oxidation, hydrogenation, de-epoxidation, methylation, glycosylation and glucuronidation, esterification, hydrolysis, sulfation, demethylation and deamination. Biotransformations of some notorious mycotoxins such as alfatoxins, alternariol, citrinin, fomannoxin, ochratoxins, patulin, trichothecenes and zearalenone analogues are reviewed in detail. The recent development and applications of mycotoxins detoxification through biotransformation are also discussed.
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Affiliation(s)
- Peng Li
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China; (P.L.); (R.S.); (R.Y.); (D.L.)
| | - Ruixue Su
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China; (P.L.); (R.S.); (R.Y.); (D.L.)
| | - Ruya Yin
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China; (P.L.); (R.S.); (R.Y.); (D.L.)
| | - Daowan Lai
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China; (P.L.); (R.S.); (R.Y.); (D.L.)
| | - Mingan Wang
- Department of Applied Chemistry, College of Sciences, China Agricultural University, Beijing 100193, China;
| | - Yang Liu
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China;
| | - Ligang Zhou
- Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing 100193, China; (P.L.); (R.S.); (R.Y.); (D.L.)
- Correspondence: ; Tel.: +86-10-6273-1199
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24
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Kiseleva M, Chalyy Z, Sedova I, Aksenov I. Stability of Mycotoxins in Individual Stock and Multi-Analyte Standard Solutions. Toxins (Basel) 2020; 12:E94. [PMID: 32019119 PMCID: PMC7076964 DOI: 10.3390/toxins12020094] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 01/26/2020] [Accepted: 01/27/2020] [Indexed: 11/16/2022] Open
Abstract
Standard solutions of mycotoxins prepared in RP HPLC solvents from neat standards are usually used for analytical method development. Multi-mycotoxin HPLC-MS/MS methods necessitate stability estimation for the wide spectrum of fungal metabolites. The stability of individual diluted stock standard solutions of mycotoxins in RP-HPLC solvents and multi-analyte HPLC-MS/MS calibrants was evaluated under standard storage and analysis conditions. Individual stock standard solutions of aflatoxins, sterigmatocystin, A- and B-trichothecenes, zearalenone and its analogues, ochratoxin A, fumonisins, Alternaria toxins, enniatins and beauvericin, moniliformin, citrinin, mycophenolic, cyclopiazonic acids and citreoviridin were prepared in RP-HPLC solvents and stored at -18 °C for 14 months. UV-spectroscopy was utilized to monitor the stability of analytes, excluding fumonisins. The gradual degradation of α-, β-zearalenol and α-, β-zearalanol in acetonitrile was detected. Aflatoxins and sterigmatocystin, zearalenone, Alternaria toxins, enniatins and beauvericin, citrinin, mycophenolic, cyclopiazonic acids and citreoviridin can be referred to as stable. The concentration of the majority of trichothecenes should be monitored. Diluted multi-mycotoxin standard in water/methanol (50/50 v/v) solutions acidified with 0.1% formic acid proved to be stable in silanized glass at 23 °C exposed to light for at least 75 h (CV≤10%). An unexpected manifestation of MS/MS signal suppression/enhancement was discovered in the course of multi-mycotoxin standard solution stability evaluation.
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Affiliation(s)
- Mariya Kiseleva
- Federal Research Centre of Nutrition and Biotechnology, Ust’inskiy pr., 2/14, 109240 Moscow, Russian; (Z.C.); (I.S.); (I.A.)
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25
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Wang X, You SH, Lien KW, Ling MP. Using disease-burden method to evaluate the strategies for reduction of aflatoxin exposure in peanuts. Toxicol Lett 2019; 314:75-81. [PMID: 31284020 DOI: 10.1016/j.toxlet.2019.07.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Revised: 06/05/2019] [Accepted: 07/04/2019] [Indexed: 12/31/2022]
Abstract
Aflatoxin is a fungal secondary metabolite with high toxicity that is capable of contaminating various types of food crops. It has been identified as a Group 1 human carcinogen by the International Agency for Research on Cancer. Chronic aflatoxin exposure has caused worldwide concern as a matter of public food safety. Peanuts and peanut products are the major sources of aflatoxin exposure. Therefore, some reduction interventions have been developed to minimize contamination throughout the peanut production chain. The purpose of this study is to estimate the efficacy of interventions in reducing the health impact of hepatocellular carcinoma caused by aflatoxin contamination in peanuts. The estimated total Disability-Adjusted Life Years (DALYs) were calculated using FDA-iRISK software. Six aflatoxin reduction strategies were evaluated, including good agricultural practice (GAP), biocontrol, Purdue Improved Crop Storage packaging, basic processing, ozonolysis, and ultraviolet irradiation. The results indicated that basic processing could prevent huge public health loss of 4,079.7-21,833 total DALYs per year. In addition, GAP and biocontrol were both found to be effective strategies in the farm field. Meanwhile, the other three interventions had limited effectiveness in reducing total DALYs. In conclusion, this study could help farmers, processing plants, and government policy makers to alleviate aflatoxin contamination issues in the peanut production chain.
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Affiliation(s)
- Xin Wang
- Department of Food Science, National Taiwan Ocean University, Keelung City, Taiwan
| | - Shu-Han You
- Institute of Food Safety and Risk Management, National Taiwan Ocean University, Keelung City, Taiwan
| | - Keng-Wen Lien
- Food and Drug Administration, Ministry of Health and Welfare, Taipei City, Taiwan; Institute of Food Science and Technology, National Taiwan University, Taipei City, Taiwan
| | - Min-Pei Ling
- Department of Food Science, National Taiwan Ocean University, Keelung City, Taiwan.
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26
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Hosseini FS, Akhavan HR, Maghsoudi H, Hajimohammadi-Farimani R, Balvardi M. Effects of a rotational UV-C irradiation system and packaging on the shelf life of fresh pistachio. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2019; 99:5229-5238. [PMID: 31021408 DOI: 10.1002/jsfa.9763] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 04/16/2019] [Accepted: 04/17/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND In this study, fresh pistachio was exposed to UV-C irradiation (2.1 and 4.5 kJ m-2 ) in a rotating cylindrical system with seven germicidal UV-C lamps and immediately packed in perforated and non-perforated polyethylene terephthalate (PET). The fruit were evaluated for weight loss, total phenolic content, enzyme activities, color indices (L*, a*, b* and browning index), and microbial counts during 35 days of storage at 4 °C. RESULTS UV-C treatment caused a significant decrease (P < 0.05) in the weight loss of fresh pistachios compared to the control. The activity of catalase and peroxidase enzymes was significantly higher (P < 0.05) in irradiated samples packed in non-perforated PET in comparison to those of untreated samples. Irradiation did not inhibit the activity of polyphenol oxidase in treated samples, although a slight decrease in polyphenol oxidase activity was observed in irradiated samples compared to control. The fruit treated with 2.1 kJ m-2 of UV-C and the control packed in non-perforated PET were lighter (L*), redder (a*), and less yellow (b*) compared to 4.5 kJ m-2 treated samples. Furthermore, a dose of 4.5 kJ m-2 UV-C significantly decreased sensory attributes of fresh pistachios compared to the other irradiation level and control. CONCLUSION UV-C irradiation at a dose of 2.1 kJ m-2 and packing in non-perforated PET are recommended for fresh pistachio preservation based on the physicochemical, microbial, and sensory parameters. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Fereshteh-Sadat Hosseini
- Department of Mechanical Engineering of Bio-systems, Faculty of Agriculture, Shahid Bahonar University of Kerman, Kerman, Iran
| | - Hamid-Reza Akhavan
- Department of Food Science and Technology, Faculty of Agriculture, Shahid Bahonar University of Kerman, Kerman, Iran
| | - Hossein Maghsoudi
- Department of Mechanical Engineering of Bio-systems, Faculty of Agriculture, Shahid Bahonar University of Kerman, Kerman, Iran
| | - Reza Hajimohammadi-Farimani
- Department of Food Science and Technology, Faculty of Agriculture, Shahid Bahonar University of Kerman, Kerman, Iran
| | - Mohammad Balvardi
- Department of Food Science and Technology, Faculty of Agriculture, Shahid Bahonar University of Kerman, Kerman, Iran
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27
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Hojnik N, Modic M, Tavčar-Kalcher G, Babič J, Walsh JL, Cvelbar U. Mycotoxin Decontamination Efficacy of Atmospheric Pressure Air Plasma. Toxins (Basel) 2019; 11:E219. [PMID: 31013734 PMCID: PMC6521119 DOI: 10.3390/toxins11040219] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 03/26/2019] [Accepted: 04/01/2019] [Indexed: 11/17/2022] Open
Abstract
Mycotoxins, the toxic secondary metabolites of mould species, are a growing global concern, rendering almost 25% of all food produced unfit for human or animal consumption, thus placing immense pressure on the food supply chain. Cold Atmospheric pressure Plasma (CAP) represents a promising, low-cost, and environmentally friendly means to degrade mycotoxins with negligible effect on the quality of food products. Despite this promise, the study of CAP-mediated mycotoxin degradation has been limited to a small subset of the vast number of mycotoxins that plague the food supply chain. This study explores the degradation of aflatoxins, trichothecenes, fumonisins, and zearalenone using CAP generated in ambient air. CAP treatment was found to reduce aflatoxins by 93%, trichothecenes by 90%, fumonisins by 93%, and zearalenone by 100% after 8 minutes exposure. To demonstrate the potential of CAP-mediated mycotoxin degradation against more conventional methods, its efficiency was compared against ultraviolet C (UVC) light irradiation. In all cases, CAP was found to be considerably more efficient than UVC, with aflatoxin G1 and zearalenone being completely degraded, levels that could not be achieved using UVC irradiation.
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Affiliation(s)
- Nataša Hojnik
- Laboratory for Gaseous Electronics F6, Jozef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia.
- Jožef Stefan International Postgraduate School, Jamova 39, 1000 Ljubljana, Slovenia.
| | - Martina Modic
- Laboratory for Gaseous Electronics F6, Jozef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia.
| | - Gabrijela Tavčar-Kalcher
- Institute of Food Safety, Feed and Environment, Veterinary Faculty, University of Ljubljana, Gerbičeva 60, 1000 Ljubljana, Slovenia.
| | - Janja Babič
- Institute of Food Safety, Feed and Environment, Veterinary Faculty, University of Ljubljana, Gerbičeva 60, 1000 Ljubljana, Slovenia.
| | - James L Walsh
- Department of Electrical, Engineering and Electronics, University of Liverpool, Liverpool L69 3GJ, UK.
| | - Uroš Cvelbar
- Laboratory for Gaseous Electronics F6, Jozef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia.
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28
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Magzoub R, Yassin A, Abdel-Rahim A, Gubartallah E, Miskam M, Saad B, Sabar S. Photocatalytic detoxification of aflatoxins in Sudanese peanut oil using immobilized titanium dioxide. Food Control 2019. [DOI: 10.1016/j.foodcont.2018.08.009] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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29
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El Khoury R, Caceres I, Puel O, Bailly S, Atoui A, Oswald IP, El Khoury A, Bailly JD. Identification of the Anti-Aflatoxinogenic Activity of Micromeria graeca and Elucidation of Its Molecular Mechanism in Aspergillus flavus. Toxins (Basel) 2017; 9:toxins9030087. [PMID: 28257049 PMCID: PMC5371842 DOI: 10.3390/toxins9030087] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Revised: 02/22/2017] [Accepted: 02/24/2017] [Indexed: 01/25/2023] Open
Abstract
Of all the food-contaminating mycotoxins, aflatoxins, and most notably aflatoxin B1 (AFB1), are found to be the most toxic and economically costly. Green farming is striving to replace fungicides and develop natural preventive strategies to minimize crop contamination by these toxic fungal metabolites. In this study, we demonstrated that an aqueous extract of the medicinal plant Micromeria graeca—known as hyssop—completely inhibits aflatoxin production by Aspergillus flavus without reducing fungal growth. The molecular inhibitory mechanism was explored by analyzing the expression of 61 genes, including 27 aflatoxin biosynthesis cluster genes and 34 secondary metabolism regulatory genes. This analysis revealed a three-fold down-regulation of aflR and aflS encoding the two internal cluster co-activators, resulting in a drastic repression of all aflatoxin biosynthesis genes. Hyssop also targeted fifteen regulatory genes, including veA and mtfA, two major global-regulating transcription factors. The effect of this extract is also linked to a transcriptomic variation of several genes required for the response to oxidative stress such as msnA, srrA, catA, cat2, sod1, mnsod, and stuA. In conclusion, hyssop inhibits AFB1 synthesis at the transcriptomic level. This aqueous extract is a promising natural-based solution to control AFB1 contamination.
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Affiliation(s)
- Rhoda El Khoury
- Toxalim, Université de Toulouse, INRA, ENVT, INP Purpan, UPS, Toulouse F-31027, France.
- Laboratoire de Mycologie et Sécurité des Aliments (LMSA), Département des sciences de la vie et de la terres - Biochimie, Faculté des Sciences, Université Saint-Joseph, P.O. Box 17-5208, Mar Mikhael Beirut 1104 2020 Lebanon.
| | - Isaura Caceres
- Toxalim, Université de Toulouse, INRA, ENVT, INP Purpan, UPS, Toulouse F-31027, France.
| | - Olivier Puel
- Toxalim, Université de Toulouse, INRA, ENVT, INP Purpan, UPS, Toulouse F-31027, France.
| | - Sylviane Bailly
- Toxalim, Université de Toulouse, INRA, ENVT, INP Purpan, UPS, Toulouse F-31027, France.
| | - Ali Atoui
- Laboratory of Microbiology, Department of Natural Sciences and Earth, Faculty of Sciences I, Lebanese University, Hadath Campus, P.O. Box 5, Beirut, Lebanon.
| | - Isabelle P Oswald
- Toxalim, Université de Toulouse, INRA, ENVT, INP Purpan, UPS, Toulouse F-31027, France.
| | - André El Khoury
- Laboratoire de Mycologie et Sécurité des Aliments (LMSA), Département des sciences de la vie et de la terres - Biochimie, Faculté des Sciences, Université Saint-Joseph, P.O. Box 17-5208, Mar Mikhael Beirut 1104 2020 Lebanon.
| | - Jean-Denis Bailly
- Toxalim, Université de Toulouse, INRA, ENVT, INP Purpan, UPS, Toulouse F-31027, France.
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