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Green and sustainable technologies for the decontamination of fungi and mycotoxins in rice: A review. Trends Food Sci Technol 2022. [DOI: 10.1016/j.tifs.2022.04.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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2
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Salimian Rizi E, Jahadi M, Zia M. Evaluation of gamma irradiation effect on morphological changes, macroscopic, microscopic characteristics and pigment production of
Monascus purpureus. J FOOD PROCESS PRES 2022. [DOI: 10.1111/jfpp.16129] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Elahe Salimian Rizi
- Department of Food Science and Technology Isfahan (Khorasgan) Branch Islamic Azad University Isfahan Iran
| | - Mahshid Jahadi
- Department of Food Science and Technology Isfahan (Khorasgan) Branch Islamic Azad University Isfahan Iran
| | - Mohammadali Zia
- Department of Medical Basic Science Isfahan (Khorasgan) Branch Islamic Azad University Isfahan Iran
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Romsdahl J, Schultzhaus Z, Cuomo CA, Dong H, Abeyratne-Perera H, Hervey WJ, Wang Z. Phenotypic Characterization and Comparative Genomics of the Melanin-Producing Yeast Exophiala lecanii-corni Reveals a Distinct Stress Tolerance Profile and Reduced Ribosomal Genetic Content. J Fungi (Basel) 2021; 7:1078. [PMID: 34947060 PMCID: PMC8709033 DOI: 10.3390/jof7121078] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 12/07/2021] [Accepted: 12/10/2021] [Indexed: 12/19/2022] Open
Abstract
The black yeast Exophiala lecanii-corni of the order Chaetothyriales is notable for its ability to produce abundant quantities of DHN-melanin. While many other Exophiala species are frequent causal agents of human infection, E. lecanii-corni CBS 102400 lacks the thermotolerance requirements that enable pathogenicity, making it appealing for use in targeted functional studies and biotechnological applications. Here, we report the stress tolerance characteristics of E. lecanii-corni, with an emphasis on the influence of melanin on its resistance to various forms of stress. We find that E. lecanii-corni has a distinct stress tolerance profile that includes variation in resistance to temperature, osmotic, and oxidative stress relative to the extremophilic and pathogenic black yeast Exophiala dermatitidis. Notably, the presence of melanin substantially impacts stress resistance in E. lecanii-corni, while this was not found to be the case in E. dermatitidis. The cellular context, therefore, influences the role of melanin in stress protection. In addition, we present a detailed analysis of the E. lecanii-corni genome, revealing key differences in functional genetic content relative to other ascomycetous species, including a significant decrease in abundance of genes encoding ribosomal proteins. In all, this study provides insight into how genetics and physiology may underlie stress tolerance and enhances understanding of the genetic diversity of black yeasts.
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Affiliation(s)
- Jillian Romsdahl
- National Research Council Postdoctoral Research Associate, U.S. Naval Research Laboratory, Washington, DC 20375, USA;
| | - Zachary Schultzhaus
- Center for Biomolecular Sciences and Engineering, U.S. Naval Research Laboratory, Washington, DC 20375, USA; (Z.S.); (W.J.H.IV)
| | - Christina A. Cuomo
- Infectious Disease and Microbiome Program, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA;
| | - Hong Dong
- Biotechnology Branch, CCDC Army Research Laboratory, Adelphi, MD 20783, USA;
| | - Hashanthi Abeyratne-Perera
- American Society for Engineering Education Postdoctoral Research Associate, U.S. Naval Research Laboratory, Washington, DC 20375, USA;
| | - W. Judson Hervey
- Center for Biomolecular Sciences and Engineering, U.S. Naval Research Laboratory, Washington, DC 20375, USA; (Z.S.); (W.J.H.IV)
| | - Zheng Wang
- Center for Biomolecular Sciences and Engineering, U.S. Naval Research Laboratory, Washington, DC 20375, USA; (Z.S.); (W.J.H.IV)
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Huang HH, Dikkala PK, Sridhar K, Yang HT, Lee JT, Tsai FJ. Effect of heat treatment and γ-irradiation on pasting, rheological, and fungal load of whole and dehulled millets. FOOD SCI TECHNOL INT 2021; 28:273-282. [PMID: 34000861 DOI: 10.1177/10820132211017683] [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: 11/17/2022]
Abstract
Millets are important food crops in food systems and application of physical treatments could improve the functional properties of millet-based products. Therefore, we investigated the effect of heat and γ-irradiation treatments on the pasting, rheological, and microbial load of whole and dehulled millets (sorghum, foxtail millet, and pearl millet). Moreover, similarity in treatment effect was evaluated by principal component analysis (PCA). The results revealed the significant (p < 0.05) decrease in pasting properties of whole and dehulled millets, except for pasting temperature (71.03 to 74.88 °C). Likewise, significantly (p < 0.05) decreased tendency was observed for all rheological properties, except for phase angle (0.05 to 0.30°) and yield point (13 to 5089). Samples showed a significant (p < 0.05) reduction in fungal growth (89.75 × 104 to 4.46 × 104 CFU/g) compared to control (110.30 × 104 CFU/g). Moreover, samples individually formed 3 clusters (clusters 1: sorghum, 2: pearl millet, and 3: foxtail millet) based on pasting properties, which was confirmed by PCA. Therefore, the findings concluded that the effect of heat and γ-irradiation would be necessary to decrease pasting, rheological, and no microbial growth characteristics of dehulled and whole millets for the development of specific millet-based food products.
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Affiliation(s)
- Hsiu-Hsiang Huang
- Department of Environmental Science and Engineering, National Pingtung University of Science and Technology, Pingtung, Taiwan
| | - Praveen Kumar Dikkala
- Department of Food Science and Technology, Punjab Agricultural University, Ludhiana, India
| | - Kandi Sridhar
- Department of Food Science, Fu Jen Catholic University, New Taipei, Taiwan
| | - Hung-To Yang
- Department of Information Technology, Meiho University, Pingtung, Taiwan
| | - Jia-Twu Lee
- Department of Environmental Science and Engineering, National Pingtung University of Science and Technology, Pingtung, Taiwan
| | - Feng-Jen Tsai
- Department of Hospitality Management, Meiho University, Pingtung, Taiwan
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Influence of electron beam treatment on naturally contaminated red pepper (Capsicum annuum L.) powder: Kinetics of microbial inactivation and physicochemical quality changes. INNOV FOOD SCI EMERG 2021. [DOI: 10.1016/j.ifset.2020.102588] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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6
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Begum T, Follett PA, Hossain F, Christopher L, Salmieri S, Lacroix M. Microbicidal effectiveness of irradiation from Gamma and X-ray sources at different dose rates against the foodborne illness pathogens Escherichia coli, Salmonella Typhimurium and Listeria monocytogenes in rice. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2020.109841] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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7
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Microbial radiosensitization using combined treatments of essential oils and irradiation- part B: Comparison between gamma-ray and X-ray at different dose rates. Microb Pathog 2020; 143:104118. [PMID: 32147410 DOI: 10.1016/j.micpath.2020.104118] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 02/27/2020] [Accepted: 03/01/2020] [Indexed: 11/23/2022]
Abstract
Stored rice and rice products are prone to contamination by pathogenic fungi and bacteria such as Aspergillus niger, Bacillus cereus, and Paenibacillus amylolyticus. Treatment with antimicrobial essential oils (EOs) and irradiation are options to control spoilage organisms. Microbial samples with or without fumigation with an oregano/thyme EO mixture were irradiated at 0.5, 0.75, 1.0, 1.5, 2.0, 2.5, 3.0 and 3.5 kGy for calculation of a D10 value. The relative sensitivity was calculated as the ratio of D10 values for the irradiation plus oregano and thyme EO combination and irradiation alone treatments. In all cases, irradiation plus fumigation with the oregano and thyme EO mixture showed increased efficacy compared with irradiation alone. The relative sensitivity of γ-ray irradiation against A. niger was 1.22, 1.33, and 1.24 for radiation dose rates of 10.445, 4.558, and 0.085 kGy/h, respectively, however against B. cereus it was 1.28, 1.45, and 1.49, and against P. amylolyticus it was 1.35, 1.33, and 1.38, for respective γ-ray irradiation dose rates. The relative sensitivity of X-ray irradiation against A. niger, B. cereus, and P. amylolyticus was 1.63, 1.21, and 1.31, respectively, at the X-ray dose rate of 0.76 kGy/h. The results showed that the relative sensitivity of γ-ray irradiation was higher against the two bacteria than the fungus, whereas X-ray showed higher sensitivity against the fungus than the two bacteria. There was no consistent positive or negative relationship between dose rate and relative sensitivity. The results demonstrated the potential of an oregano and thyme EOs mixture as an antimicrobial agent and its efficacy to increase the radiosensitization of A. niger, B. cereus, and P. amylolyticus during γ-ray or X-ray irradiation treatments.
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Kothamasi D, Wannijn J, Van Hees M, Nauts R, Van Gompel A, Vanhoudt N, Vandenhove H. Exposure to ionizing radiation affects the growth of ectomycorrhizal fungi and induces increased melanin production and increased capacities of reactive oxygen species scavenging enzymes. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 2019; 197:16-22. [PMID: 30500479 DOI: 10.1016/j.jenvrad.2018.11.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Revised: 10/12/2018] [Accepted: 11/06/2018] [Indexed: 06/09/2023]
Abstract
Ectomycorrhizal (EM) fungi form symbioses with dominant tree families in boreal, temperate and tropical ecosystems and are important drivers of ecosystem function. EM fungal hyphae extend over a large area making them susceptible to enhanced radiation levels from naturally occurring or anthropogenically originating radioisotopes in the rhizosphere. In this study, the in-vitro effects of ionizing radiation on the growth and biomass of EM fungi Suillus luteus, S. bovinus and Rhizopogon luteolus were investigated. EM fungal cultures were exposed to gamma radiation from a 137Cs source for 137 h in darkness at 21 °C at dose rates of 404, 108.5 and 54.9 mGy h-1 resulting in total absorbed doses of 55.21, 14.82 and 7.50 Gy respectively. Cultures grown in the dark at 21 °C but not exposed to the 137Cs source served as the control. Our results show that EM fungi vary in their sensitivity to ionizing radiation. EM fungi used in this study produced melanin and reactive oxygen species scavenging enzymes such as catalase and superoxide dismutase as a response to ionizing radiation.
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Affiliation(s)
- David Kothamasi
- Biosphere Impact Studies Unit, Belgian Nuclear Research Center (SCK•CEN), Boeretang 200, 2400, Mol, Belgium; Laboratory of Soil Biology and Microbial Ecology, Department of Environmental Studies, University of Delhi, Delhi, 110 007, India.
| | - Jean Wannijn
- Biosphere Impact Studies Unit, Belgian Nuclear Research Center (SCK•CEN), Boeretang 200, 2400, Mol, Belgium
| | - May Van Hees
- Biosphere Impact Studies Unit, Belgian Nuclear Research Center (SCK•CEN), Boeretang 200, 2400, Mol, Belgium
| | - Robin Nauts
- Biosphere Impact Studies Unit, Belgian Nuclear Research Center (SCK•CEN), Boeretang 200, 2400, Mol, Belgium
| | - Axel Van Gompel
- Biosphere Impact Studies Unit, Belgian Nuclear Research Center (SCK•CEN), Boeretang 200, 2400, Mol, Belgium
| | - Nathalie Vanhoudt
- Biosphere Impact Studies Unit, Belgian Nuclear Research Center (SCK•CEN), Boeretang 200, 2400, Mol, Belgium
| | - Hildegarde Vandenhove
- Institute Environment Health and Safety, Belgian Nuclear Research Center (SCK•CEN), Boeretang 200, 2400, Mol, Belgium
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Inactivation of fungal contaminants on Korean traditional cashbox by gamma irradiation. Radiat Phys Chem Oxf Engl 1993 2016. [DOI: 10.1016/j.radphyschem.2015.05.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Song MA, Park JS, Kim KD, Jeun YC. Effect of X-irradiation on Citrus Canker Pathogen Xanthomonas citri subsp. citri of Satsuma Mandarin Fruits. THE PLANT PATHOLOGY JOURNAL 2015; 31:343-9. [PMID: 26672670 PMCID: PMC4677743 DOI: 10.5423/ppj.oa.06.2015.0106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/08/2015] [Revised: 07/30/2015] [Accepted: 08/06/2015] [Indexed: 06/05/2023]
Abstract
Citrus canker caused by Xanthomonas citri subsp. citri (Xcc) is one of the most important bacterial diseases of citrus. Because citrus canker is not found in many countries including European Union and Australia, Xcc is strictly regulated in order to prevent its spread. In this study, the effects of X-irradiation on Xcc growth either in the suspension or on the surface of citrus fruits were investigated. The suspension containing 1×10(7) cfu/ml of Xcc was irradiated with different absorbed doses of X-irradiation ranging from 50 to 400 Gy. The results showed that Xcc was fully dead at 400 Gy of X-irradiation. To determine the effect of X-irradiation on quarantine, the Xcc-inoculated citrus fruits were irradiated with different X-ray doses at which Xcc was completely inhibited by an irradiation dose of 250 Gy. The D10 value for Xcc on citrus fruits was found to be 97 Gy, indicating the possibility of direct application on citrus quarantine without any side sterilizer. Beside, presence of Xcc on the surface of asymptomatic citrus fruits obtained from citrus canker-infected orchards was noted. It indicated that the exporting citrus fruits need any treatment so that Xcc on the citrus fruits should be completely eliminated. Based on these results, ionizing radiation can be considered as an alternative method of eradicating Xcc for export of citrus fruits.
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Affiliation(s)
- Min-A Song
- Faculty of Bioscience and Industry, College of Applied Life Sciences, Jeju National University, Jeju-do 690-756,
Korea
| | - Jae Sin Park
- Faculty of Bioscience and Industry, College of Applied Life Sciences, Jeju National University, Jeju-do 690-756,
Korea
| | - Ki Deok Kim
- Division of Biotechnology, Korea University, Seoul 136-713,
Korea
| | - Yong Chull Jeun
- Faculty of Bioscience and Industry, College of Applied Life Sciences, Jeju National University, Jeju-do 690-756,
Korea
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Jeong RD, Shin EJ, Chu EH, Park HJ. Effects of Ionizing Radiation on Postharvest Fungal Pathogens. THE PLANT PATHOLOGY JOURNAL 2015; 31:176-80. [PMID: 26060436 PMCID: PMC4453998 DOI: 10.5423/ppj.nt.03.2015.0040] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Revised: 04/14/2015] [Accepted: 04/15/2015] [Indexed: 05/23/2023]
Abstract
Postharvest diseases cause losses in a wide variety of crops around the world. Irradiation, a useful nonchemical approach, has been used as an alternative treatment for fungicide to control plant fungal pathogens. For a preliminary study, ionizing radiations (gamma, X-ray, or e-beam irradiation) were evaluated for their antifungal activity against Botrytis cinerea, Penicillium expansum, and Rhizopus stolonifer through mycelial growth, spore germination, and morphological analysis under various conditions. Different fungi exhibited different radiosensitivity. The inhibition of fungal growth showed in a dose-dependent manner. Three fungal pathogens have greater sensitivity to the e-beam treatment compared to gamma or X-ray irradiations. The inactivation of individual fungal-viability to different irradiations can be considered between 3-4 kGy for B. cinerea and 1-2 kGy for P. expansum and R. stolonifer based on the radiosensitive and radio-resistant species, respectively. These preliminary data will provide critical information to control postharvest diseases through radiation.
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Affiliation(s)
- Rae-Dong Jeong
- Corresponding author. Phone) 63-570-3193, FAX) 63-570-3195, E-mail)
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Hossain F, Follett P, Vu KD, Salmieri S, Senoussi C, Lacroix M. Radiosensitization of Aspergillus niger and Penicillium chrysogenum using basil essential oil and ionizing radiation for food decontamination. Food Control 2014. [DOI: 10.1016/j.foodcont.2014.04.022] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Nemţanu MR, Braşoveanu M, Karaca G, Erper İ. Inactivation effect of electron beam irradiation on fungal load of naturally contaminated maize seeds. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2014; 94:2668-2673. [PMID: 24604474 DOI: 10.1002/jsfa.6607] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Revised: 01/17/2014] [Accepted: 01/30/2014] [Indexed: 06/03/2023]
Abstract
BACKGROUND This work focuses on the effect of accelerated electrons (0.1-6.2 kGy) on naturally attached fungi on maize seeds. The fungal viability and corresponding inactivation kinetics were determined. The inactivation and radiosensitivity of the most abundant species in the contaminant fungi detected on maize seeds (Aspergillus spp., Penicillium spp. and Fusarium spp.) are discussed. RESULTS Fungal contamination of maize seeds decreased significantly with increasing irradiation dose. The survival curve of total fungi determined by the blotter test showed a sigmoidal pattern that can be attributed to the mixture of fungal subpopulations with different radiation sensitivities. This behaviour could be modelled well (R² = 0.995) with a modified Gompertz equation. The predicted values for shoulder length and inactivation rate were 0.63 ± 0.10 kGy and 0.44 ± 0.04 kGy⁻¹ respectively. The sensitivity of the most common fungi to electron beam treatment followed the order Penicillium spp. > Fusarium spp. > Aspergillus spp., with total inactivation at irradiation doses of 1.7, 2.5 and 4.8 kGy respectively. CONCLUSION The effect of electron beam treatment against fungi on naturally contaminated maize seeds depended on irradiation dose, allowing the control of maize fungal load.
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Affiliation(s)
- Monica R Nemţanu
- Electron Accelerators Laboratory, National Institute for Lasers, Plasma and Radiation Physics, 409 Atomistilor Street, PO Box MG-36, RO-077125, Bucharest-Magurele, Romania
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Calado T, Venâncio A, Abrunhosa L. Irradiation for Mold and Mycotoxin Control: A Review. Compr Rev Food Sci Food Saf 2014. [DOI: 10.1111/1541-4337.12095] [Citation(s) in RCA: 100] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Thalita Calado
- CEB - Centre of Biological Engineering; Univ. of Minho; Campus de Gualtar; 4710-057 Braga Portugal
| | - Armando Venâncio
- CEB - Centre of Biological Engineering; Univ. of Minho; Campus de Gualtar; 4710-057 Braga Portugal
| | - Luís Abrunhosa
- CEB - Centre of Biological Engineering; Univ. of Minho; Campus de Gualtar; 4710-057 Braga Portugal
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