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Silva Amorim D, Silva Amorim I, Campos Chisté R, André Narciso Fernandes F, Regina Barros Mariutti L, Teixeira Godoy H, Rosane Barboza Mendonça C. Non-thermal technologies for the conservation of açai pulp and derived products: A comprehensive review. Food Res Int 2023; 174:113575. [PMID: 37986445 DOI: 10.1016/j.foodres.2023.113575] [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: 06/07/2023] [Revised: 10/06/2023] [Accepted: 10/09/2023] [Indexed: 11/22/2023]
Abstract
Açai (Euterpe oleracea) is one of the main sustainable extractive crops in the Amazon region, widely consumed by the local population and a significant export product. This review presents the current knowledge regarding nonthermal technologies employed in açai processing. This review aims to discuss and compare the main results attained by the application of HPP, ultrasound, ozone, UV light, cold plasma, and pulsed electric field on microbial inactivation, enzymatic inhibition, and the content of anthocyanin and other bioactive compounds after açai pulp processing. The discussion compares these technologies with pasteurization, the current main technology applied to açai sanitization. This review shows that there are still many gaps to be filled concerning açai processing in thermal and non-thermal technologies. Data analysis allowed the conclusion that pasteurization and HPP are, up to now, the only technologies that enable a 5-log CFU reduction of yeasts, molds, and some bacteria in açai. However, no study has reported the inactivation of Trypanosoma cruzi, which is the major gap found in current knowledge. Other technologies, such as pulsed electric field, cold plasma, and ultrasound, require further development and process intensification studies to be as successful as HPP and pasteurization.
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Affiliation(s)
- Danyelly Silva Amorim
- Centro de Ciências Químicas, Farmacêuticas e de Alimentos - Universidade Federal de Pelotas, 96010-900 Pelotas, Rio Grande do Sul, Brazil; Departamento de Ciência de Alimentos e Nutrição, Faculdade de Engenharia de Alimentos, Universida Estadual de Campinas (UNICAMP), 13083-862 Campinas, São Paulo, Brazil.
| | - Isabelly Silva Amorim
- Centro de Ciências Químicas, Farmacêuticas e de Alimentos - Universidade Federal de Pelotas, 96010-900 Pelotas, Rio Grande do Sul, Brazil; Departamento de Ciência de Alimentos e Nutrição, Faculdade de Engenharia de Alimentos, Universida Estadual de Campinas (UNICAMP), 13083-862 Campinas, São Paulo, Brazil
| | - Renan Campos Chisté
- Faculdade de Engenharia de Alimentos (FEA), Instituto de Tecnologia (ITEC), Universidade Federal do Pará (UFPA), 66075-110 Belém, Pará, Brazil
| | - Fabiano André Narciso Fernandes
- Universidade Federal do Ceará, Departamento de Engenharia Química, Campus do Pici, Bloco 709, 60440-900 Fortaleza, CE, Brazil
| | - Lilian Regina Barros Mariutti
- Departamento de Ciência de Alimentos e Nutrição, Faculdade de Engenharia de Alimentos, Universida Estadual de Campinas (UNICAMP), 13083-862 Campinas, São Paulo, Brazil
| | - Helena Teixeira Godoy
- Departamento de Ciência de Alimentos e Nutrição, Faculdade de Engenharia de Alimentos, Universida Estadual de Campinas (UNICAMP), 13083-862 Campinas, São Paulo, Brazil
| | - Carla Rosane Barboza Mendonça
- Centro de Ciências Químicas, Farmacêuticas e de Alimentos - Universidade Federal de Pelotas, 96010-900 Pelotas, Rio Grande do Sul, Brazil
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Mun W, Choi SY, Upatissa S, Mitchell RJ. Predatory bacteria as potential biofilm control and eradication agents in the food industry. Food Sci Biotechnol 2023; 32:1729-1743. [PMID: 37780591 PMCID: PMC10533476 DOI: 10.1007/s10068-023-01310-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 04/04/2023] [Accepted: 04/12/2023] [Indexed: 10/03/2023] Open
Abstract
Biofilms are a major concern within the food industry since they have the potential to reduce productivity in situ (within the field), impact food stability and storage, and cause downstream food poisoning. Within this review, predatory bacteria as potential biofilm control and eradication agents are discussed, with a particular emphasis on the intraperiplasmic Bdellovibrio-and-like organism (BALO) grouping. After providing a brief overview of predatory bacteria and their activities, focus is given to how BALOs fulfill four attributes that are essential for biocontrol agents to be successful in the food industry: (1) Broad spectrum activity against pathogens, both plant and human; (2) Activity against biofilms; (3) Safety towards humans and animals; and (4) Compatibility with food. As predatory bacteria possess all of these characteristics, they represent a novel form of biofilm biocontrol that is ripe for use within the food industry.
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Affiliation(s)
- Wonsik Mun
- School of Biological Sciences, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919 South Korea
| | - Seong Yeol Choi
- School of Biological Sciences, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919 South Korea
| | - Sumudu Upatissa
- School of Biological Sciences, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919 South Korea
| | - Robert J. Mitchell
- School of Biological Sciences, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919 South Korea
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3
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Effect of negative air ionization technology on microbial reduction of food-related microorganisms. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.113998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Anjali KU, Reshma C, Sruthi NU, Pandiselvam R, Kothakota A, Kumar M, Siliveru K, Marszałek K, Mousavi Khaneghah A. Influence of ozone treatment on functional and rheological characteristics of food products: an updated review. Crit Rev Food Sci Nutr 2022; 64:3687-3701. [PMID: 36268992 DOI: 10.1080/10408398.2022.2134292] [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
In this milieu, ozone technology has emerged as an avant-garde non-thermal mode of disinfection with potential applications in the food industry. This eco-friendly technology has a comprehendible adeptness in replacing alternative chemical sanitizers and is recognized as a generally safe disinfectant for fruits and vegetables. Several researchers have been focusing on the biochemical impacts of ozone on different quantitative and qualitative aspects of fruits and vegetables. A collection of those works is presented in this review highlighting the effect of ozone on the functional, antioxidant, and rheological properties of food. This can be a benevolent tool for discovering the processing states of ozone applications and ensuing influence on safety and quality attributes of previously studied foods and opening further research areas. It extends shelf life and never leaves any harmful residues on the product since it decomposes to form oxygen. It was seen that the impact on a specific property of food was dependent on the ozone concentration and treatment time, and the adverse effects of ozone exposure can be alleviated once the processing conditions are optimized. The present review can be used as a baseline for designing different food processing operations involving ozone.
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Affiliation(s)
- K U Anjali
- Department of Food Science and Technology, Pondicherry University, Puducherry, India
| | - C Reshma
- National Institute of Food Technology Entrepreneurship and Management, Sonipat, Haryana, India
| | - N U Sruthi
- Agricultural and Food Engineering Department, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, India
| | - R Pandiselvam
- Physiology, Biochemistry, and Post-harvest Technology Division, ICAR-Central Plantation Crops Research Institute, Kasaragod, Kerala, India
| | - Anjineyulu Kothakota
- Agro-Processing & Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (NIIST), Trivandrum, Kerala, India
| | - Manoj Kumar
- Chemical and Biochemical Processing Division, ICAR-Central Institute for Research on Cotton Technology, Mumbai, Maharashtra, India
| | - Kaliramesh Siliveru
- Department of Grain Science & Industry, Kansas State University, Manhattan, Kansas, USA
| | - Krystian Marszałek
- Department of Fruit and Vegetable Product Technology, Prof. Wacław Dąbrowski Institute of Agricultural and Food Biotechnology - State Research Institute, Warsaw, Poland
| | - Amin Mousavi Khaneghah
- Department of Fruit and Vegetable Product Technology, Prof. Wacław Dąbrowski Institute of Agricultural and Food Biotechnology - State Research Institute, Warsaw, Poland
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5
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Understanding the Effect of Ozone on Listeria monocytogenes and Resident Microbiota of Gorgonzola Cheese Surface: A Culturomic Approach. Foods 2022; 11:foods11172640. [PMID: 36076825 PMCID: PMC9455919 DOI: 10.3390/foods11172640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Revised: 08/17/2022] [Accepted: 08/25/2022] [Indexed: 11/29/2022] Open
Abstract
The occurrence of Listeria monocytogenes on Gorgonzola cheese surface was reported by many authors, with risks arising from the translocation of the pathogen inside the product during cutting procedures. Among the novel antimicrobial strategies, ozone may represent a useful tool against L. monocytogenes contamination on Gorgonzola cheese rind. In this study, the effect of gaseous ozone (2 and 4 ppm for 10 min) on L. monocytogenes and resident microbiota of Gorgonzola cheese rind stored at 4 °C for 63 days was evaluated. A culturomic approach, based on the use of six media and identification of colonies by MALDI-TOF MS, was used to analyse variations of resident populations. The decrease of L. monocytogenes was less pronounced in ozonised rinds with final loads of ~1 log CFU/g higher than controls. This behaviour coincided with a lower maximum population density of lactobacilli in treated samples at day 28. No significant differences were detected for the other microbial determinations and resident microbiota composition among treated and control samples. The dominant genera were Candida, Carnobacterium, Staphylococcus, Penicillium, Saccharomyces, Aerococcus, Yarrowia, and Enterococcus. Based on our results, ozone was ineffective against L. monocytogenes contamination on Gorgonzola rinds. The higher final L. monocytogenes loads in treated samples could be associated with a suppressive effect of ozone on lactobacilli, since these are antagonists of L. monocytogenes. Our outcomes suggest the potential use of culturomics to study the ecosystems of complex matrices, such as the surface of mould and blue-veined cheeses.
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Iversen LJL, Rovina K, Vonnie JM, Matanjun P, Erna KH, ‘Aqilah NMN, Felicia WXL, Funk AA. The Emergence of Edible and Food-Application Coatings for Food Packaging: A Review. Molecules 2022; 27:molecules27175604. [PMID: 36080371 PMCID: PMC9457879 DOI: 10.3390/molecules27175604] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 08/08/2022] [Accepted: 08/16/2022] [Indexed: 12/04/2022] Open
Abstract
Food packaging was not as important in the past as it is now, because the world has more people but fewer food resources. Food packaging will become more prevalent and go from being a nice-to-have to an essential feature of modern life. Food packaging has grown to be an important industry sector in today’s world of more people and more food. Food packaging innovation faces significant challenges in extending perishable food products’ shelf life and contributing to meeting daily nutrient requirements as people nowadays are searching for foods that offer additional health advantages. Modern food preservation techniques have two objectives: process viability and safe, environmentally friendly end products. Long-term storage techniques can include the use of edible coatings and films. This article gives a succinct overview of the supplies and procedures used to coat food products with conventional packaging films and coatings. The key findings summarizing the biodegradable packaging materials are emphasized for their ability to prolong the freshness and flavor of a wide range of food items; films and edible coatings are highlighted as viable alternatives to traditional packaging methods. We discuss the safety concerns and opportunities presented by applying edible films and coatings, allowing it to be used as quality indicators for time-sensitive foods.
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Affiliation(s)
- Luk Jun Lam Iversen
- Faculty of Food Science and Nutrition, Universiti Malaysia Sabah, Kota Kinabalu 88400, Sabah, Malaysia
| | - Kobun Rovina
- Faculty of Food Science and Nutrition, Universiti Malaysia Sabah, Kota Kinabalu 88400, Sabah, Malaysia
- Correspondence: ; Tel.: +60-88320000 (ext. 8713); Fax: +60-88-320993
| | - Joseph Merillyn Vonnie
- Faculty of Food Science and Nutrition, Universiti Malaysia Sabah, Kota Kinabalu 88400, Sabah, Malaysia
| | - Patricia Matanjun
- Faculty of Food Science and Nutrition, Universiti Malaysia Sabah, Kota Kinabalu 88400, Sabah, Malaysia
| | - Kana Husna Erna
- Faculty of Food Science and Nutrition, Universiti Malaysia Sabah, Kota Kinabalu 88400, Sabah, Malaysia
| | - Nasir Md Nur ‘Aqilah
- Faculty of Food Science and Nutrition, Universiti Malaysia Sabah, Kota Kinabalu 88400, Sabah, Malaysia
| | - Wen Xia Ling Felicia
- Faculty of Food Science and Nutrition, Universiti Malaysia Sabah, Kota Kinabalu 88400, Sabah, Malaysia
| | - Andree Alexander Funk
- Rural Development Corporation, Level 2, Wisma Pertanian, Locked Bag 86, Kota Kinabalu 88998, Sabah, Malaysia
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Effect of the Application of Cold Plasma Energy on the Inactivation of Microorganisms, Proteins, and Lipids Deterioration in Adobera Cheese. J FOOD QUALITY 2022. [DOI: 10.1155/2022/8230955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Cheeses are perishable foods that must fulfill sanitary and quality requirements according to the parameters established globally. Plasma as a nonthermal inactivation technique has been a current research topic for food preservation, so the objective of this work was to study the effect of plasma energy against microorganisms in Adobera cheese (traditional Mexican cheese) as well as evaluate the possible degradation of lipids and protein. 108 CFU/mL of Escherichia coli ATCC 25922, Salmonella ATCC13076, and Staphylococcus aureus ATCC 6538 were inoculated at 0.5 g of Adobera cheese and were subjected to an energy of 30 volts, in a dielectric barrier discharge reactor (DBDR) at intervals of times 1, 3, 5, 7, 10, and 15 min. A flow of a mixture of air and helium at 96% purity was used. The decimal reduction time (D) was determined, and the oxidation of proteins and lipids was analyzed after each treatment. The results showed an annihilating effect of plasma on the indicator bacteria under study, and a reduction of 5 logarithmic cycles was obtained. The maximum degree of lipid oxidation was 23 acid degree values (ADV) after 7 min of exposure to plasma. The oxidation of proteins showed a direct and proportional relationship between the formation of carbonyl groups with the percentage significant loss to the concentration of carbonyl groups with the concentration of protein oxidation, after 3 min of exposure to cold plasma levels of 82% and 99% oxidation of Adobera cheese protein and free casein, respectively. We conclude that the plasma energy applied to Adobera cheese is an effective treatment to inactivate bacteria. However, there is the possibility of causing changes in taste and odor, due to the release of fatty acids and the oxidation of proteins.
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The Use of Ozone as an Eco-Friendly Strategy against Microbial Biofilm in Dairy Manufacturing Plants: A Review. Microorganisms 2022; 10:microorganisms10010162. [PMID: 35056612 PMCID: PMC8781958 DOI: 10.3390/microorganisms10010162] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 12/30/2021] [Accepted: 01/10/2022] [Indexed: 02/04/2023] Open
Abstract
Managing spoilage and pathogenic bacteria contaminations represents a major challenge for the food industry, especially for the dairy sector. Biofilms formed by these microorganisms in food processing environment continue to pose concerns to food manufacturers as they may impact both the safety and quality of processed foods. Bacteria inside biofilm can survive in harsh environmental conditions and represent a source of repeated food contamination in dairy manufacturing plants. Among the novel approaches proposed to control biofilm in food processing plants, the ozone treatment, in aqueous or gaseous form, may represent one of the most promising techniques due to its antimicrobial action and low environmental impact. The antimicrobial effectiveness of ozone has been well documented on a wide variety of microorganisms in planktonic forms, whereas little data on the efficacy of ozone treatment against microbial biofilms are available. In addition, ozone is recognized as an eco-friendly technology since it does not leave harmful residuals in food products or on contact surfaces. Thus, this review intends to present an overview of the current state of knowledge on the possible use of ozone as an antimicrobial agent against the most common spoilage and pathogenic microorganisms, usually organized in biofilm, in dairy manufacturing plants.
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Davies CR, Wohlgemuth F, Young T, Violet J, Dickinson M, Sanders JW, Vallieres C, Avery SV. Evolving challenges and strategies for fungal control in the food supply chain. FUNGAL BIOL REV 2021; 36:15-26. [PMID: 34084209 PMCID: PMC8127832 DOI: 10.1016/j.fbr.2021.01.003] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Revised: 01/18/2021] [Accepted: 01/20/2021] [Indexed: 02/07/2023]
Abstract
Fungi that spoil foods or infect crops can have major socioeconomic impacts, posing threats to food security. The strategies needed to manage these fungi are evolving, given the growing incidence of fungicide resistance, tightening regulations of chemicals use and market trends imposing new food-preservation challenges. For example, alternative methods for crop protection such as RNA-based fungicides, biocontrol, or stimulation of natural plant defences may lessen concerns like environmental toxicity of chemical fungicides. There is renewed focus on natural product preservatives and fungicides, which can bypass regulations for 'clean label' food products. These require investment to find effective, safe activities within complex mixtures such as plant extracts. Alternatively, physical measures may be one key for fungal control, such as polymer materials which passively resist attachment and colonization by fungi. Reducing or replacing traditional chlorine treatments (e.g. of post-harvest produce) is desirable to limit formation of disinfection by-products. In addition, the current growth in lower sugar food products can alter metabolic routing of carbon utilization in spoilage yeasts, with implications for efficacy of food preservatives acting via metabolism. The use of preservative or fungicide combinations, while involving more than one chemical, can reduce total chemicals usage where these act synergistically. Such approaches might also help target different subpopulations within heteroresistant fungal populations. These approaches are discussed in the context of current challenges for food preservation, focussing on pre-harvest fungal control, fresh produce and stored food preservation. Several strategies show growing potential for mitigating or reversing the risks posed by fungi in the food supply chain.
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Affiliation(s)
- Catheryn R. Davies
- School of Life Sciences, University of Nottingham, University Park Campus, Nottingham, United Kingdom
| | - Franziska Wohlgemuth
- School of Life Sciences, University of Nottingham, University Park Campus, Nottingham, United Kingdom
| | - Taran Young
- School of Life Sciences, University of Nottingham, University Park Campus, Nottingham, United Kingdom
| | - Joseph Violet
- School of Life Sciences, University of Nottingham, University Park Campus, Nottingham, United Kingdom
| | - Matthew Dickinson
- School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough, United Kingdom
| | - Jan-Willem Sanders
- Unilever Foods Innovation Centre, Bronland 14, 6708 WH Wageningen, the Netherlands
| | - Cindy Vallieres
- School of Life Sciences, University of Nottingham, University Park Campus, Nottingham, United Kingdom
| | - Simon V. Avery
- School of Life Sciences, University of Nottingham, University Park Campus, Nottingham, United Kingdom
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Wohlgemuth F, Gomes RL, Singleton I, Rawson FJ, Avery SV. Top-Down Characterization of an Antimicrobial Sanitizer, Leading From Quenchers of Efficacy to Mode of Action. Front Microbiol 2020; 11:575157. [PMID: 33101251 PMCID: PMC7546784 DOI: 10.3389/fmicb.2020.575157] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 09/07/2020] [Indexed: 01/29/2023] Open
Abstract
We developed a top-down strategy to characterize an antimicrobial, oxidizing sanitizer, which has diverse proposed applications including surface-sanitization of fresh foods, and with benefits for water resilience. The strategy involved finding quenchers of antimicrobial activity then antimicrobial mode of action, by identifying key chemical reaction partners starting from complex matrices, narrowing down reactivity to specific organic molecules within cells. The sanitizer electrolyzed-water (EW) retained partial fungicidal activity against the food-spoilage fungus Aspergillus niger at high levels of added soils (30–750 mg mL–1), commonly associated with harvested produce. Soil with high organic load (98 mg g–1) gave stronger EW inactivation. Marked inactivation by a complex organics mix (YEPD medium) was linked to its protein-rich components. Addition of pure proteins or amino acids (≤1 mg mL–1) fully suppressed EW activity. Mechanism was interrogated further with the yeast model, corroborating marked suppression of EW action by the amino acid methionine. Pre-culture with methionine increased resistance to EW, sodium hypochlorite, or chlorine-free ozonated water. Overexpression of methionine sulfoxide reductases (which reduce oxidized methionine) protected against EW. Fluoroprobe-based analyses indicated that methionine and cysteine inactivate free chlorine species in EW. Intracellular methionine oxidation can disturb cellular FeS-clusters and we showed that EW treatment impairs FeS-enzyme activity. The study establishes the value of a top-down approach for multi-level characterization of sanitizer efficacy and action. The results reveal proteins and amino acids as key quenchers of EW activity and, among the amino acids, the importance of methionine oxidation and FeS-cluster damage for antimicrobial mode-of-action.
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Affiliation(s)
| | - Rachel L Gomes
- Faculty of Engineering, University of Nottingham, Nottingham, United Kingdom
| | - Ian Singleton
- School of Applied Sciences, Edinburgh Napier University, Edinburgh, United Kingdom
| | - Frankie J Rawson
- School of Pharmacy, University of Nottingham, Nottingham, United Kingdom
| | - Simon V Avery
- School of Life Sciences, University of Nottingham, Nottingham, United Kingdom
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