1
|
Zhang H, Wei J, Xv H, Khan I, Sun Q, Zhao X, Gao J, Liu S, Wei S. Bactericidal efficacy of plasma-activated water against Vibrio parahaemolyticus on Litopenaeus vannamei. Front Nutr 2024; 11:1365282. [PMID: 38515524 PMCID: PMC10954878 DOI: 10.3389/fnut.2024.1365282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 02/22/2024] [Indexed: 03/23/2024] Open
Abstract
In this study, the antimicrobial mechanism of plasma-activated water (PAW) against Vibrio parahaemolyticus and the effectiveness of PAW in artificially contaminated Litopenaeus vannamei were investigated. The results demonstrated a significant reduction (p < 0.05) in viable counts of V. parahaemolyticus with increasing plasma discharge time (5, 10, 20, and 30 min) and PAW immersion time (3, 5, 10, 20, and 30 s). Specifically, the count of V. parahaemolyticus decreased by 2.1, 2.7, 3.3, and 4.4 log CFU/mL after exposed to PAW 5, PAW 10, PAW 20, and PAW 30 for 30 s, respectively. Significant cell surface wrinkling, accompanied by notable nucleic acid and protein leakage were observed after treatment with PAW. The permeability of the inner and outer cell membranes was significantly increased (p < 0.05), along with an increase in electrical conductivity (p < 0.05). The reactive oxygen species (ROS) within V. parahaemolyticus cells were significantly increased (p < 0.05), while superoxide dismutase (SOD) activity, and the relative expression of the ompW, emrD, and luxS genes were significantly decreased (p < 0.05). A reduction number of 1.3, 1.8, 2.1, and 2.2 log CFU/g of V. parahaemolyticus in artificially contaminated L. vannamei was obtained with PAW for 5 min. The study elucidated that PAW could destroy cell membranes, leading to cell death. The findings would strengthen strategies for V. parahaemolyticus control and provide a potential application of PAW for preserving aquatic products.
Collapse
Affiliation(s)
- Huanlan Zhang
- College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Province Engineering Laboratory for Marine Biological Products, Guangdong Provincial Engineering Technology Research Center of Seafood, Key Laboratory of Advanced Processing of Aquatic Product of Guangdong Higher Education Institution, Zhanjiang, China
| | - Jie Wei
- College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Province Engineering Laboratory for Marine Biological Products, Guangdong Provincial Engineering Technology Research Center of Seafood, Key Laboratory of Advanced Processing of Aquatic Product of Guangdong Higher Education Institution, Zhanjiang, China
| | - Hongjie Xv
- College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Province Engineering Laboratory for Marine Biological Products, Guangdong Provincial Engineering Technology Research Center of Seafood, Key Laboratory of Advanced Processing of Aquatic Product of Guangdong Higher Education Institution, Zhanjiang, China
| | - Imran Khan
- Department of Food Science and Technology, The University of Haripur, Haripur, Pakistan
| | - Qinxiu Sun
- College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Province Engineering Laboratory for Marine Biological Products, Guangdong Provincial Engineering Technology Research Center of Seafood, Key Laboratory of Advanced Processing of Aquatic Product of Guangdong Higher Education Institution, Zhanjiang, China
| | - Xihong Zhao
- School of Environmental Ecology and Biological Engineering, Wuhan Institute of Technology, Wuhan, China
| | - Jialong Gao
- College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Province Engineering Laboratory for Marine Biological Products, Guangdong Provincial Engineering Technology Research Center of Seafood, Key Laboratory of Advanced Processing of Aquatic Product of Guangdong Higher Education Institution, Zhanjiang, China
| | - Shucheng Liu
- College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Province Engineering Laboratory for Marine Biological Products, Guangdong Provincial Engineering Technology Research Center of Seafood, Key Laboratory of Advanced Processing of Aquatic Product of Guangdong Higher Education Institution, Zhanjiang, China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian, China
| | - Shuai Wei
- College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Province Engineering Laboratory for Marine Biological Products, Guangdong Provincial Engineering Technology Research Center of Seafood, Key Laboratory of Advanced Processing of Aquatic Product of Guangdong Higher Education Institution, Zhanjiang, China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian, China
| |
Collapse
|
2
|
Cheng JH, Du R, Sun DW. Regulating bacterial biofilms in food and biomedicine: unraveling mechanisms and Innovating strategies. Crit Rev Food Sci Nutr 2024:1-17. [PMID: 38384205 DOI: 10.1080/10408398.2024.2312539] [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: 02/23/2024]
Abstract
Bacterial biofilm has brought a lot of intractable problems in food and biomedicine areas. Conventional biofilm control mainly focuses on inactivation and removal of biofilm. However, with robust construction and enhanced resistance, the established biofilm is extremely difficult to eradicate. According to the mechanism of biofilm development, biofilm formation can be modulated by intervening in the key factors and regulatory systems. Therefore, regulation of biofilm formation has been proposed as an alternative way for effective biofilm control. This review aims to provide insights into the regulation of biofilm formation in food and biomedicine. The underlying mechanisms for early-stage biofilm establishment are summarized based on the key factors and correlated regulatory networks. Recent developments and applications of novel regulatory strategies such as anti/pro-biofilm agents, nanomaterials, functionalized surface materials and physical strategies are also discussed. The current review indicates that these innovative methods have contributed to effective biofilm control in a smart, safe and eco-friendly way. However, standard methodology for regulating biofilm formation in practical use is still missing. As biofilm formation in real-world systems could be far more complicated, further studies and interdisciplinary collaboration are still needed for simulation and experiments in the industry and other open systems.
Collapse
Affiliation(s)
- Jun-Hu Cheng
- School of Food Science and Engineering, South China University of Technology, Guangzhou, China
- Academy of Contemporary Food Engineering, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, China
- Engineering and Technological Research Centre of Guangdong Province on Intelligent Sensing and Process Control of Cold Chain Foods, & Guangdong Province Engineering Laboratory for Intelligent Cold Chain Logistics Equipment for Agricultural Products, Guangzhou Higher Education Mega Centre, Guangzhou, China
| | - Rong Du
- School of Food Science and Engineering, South China University of Technology, Guangzhou, China
- Academy of Contemporary Food Engineering, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, China
- Engineering and Technological Research Centre of Guangdong Province on Intelligent Sensing and Process Control of Cold Chain Foods, & Guangdong Province Engineering Laboratory for Intelligent Cold Chain Logistics Equipment for Agricultural Products, Guangzhou Higher Education Mega Centre, Guangzhou, China
| | - Da-Wen Sun
- School of Food Science and Engineering, South China University of Technology, Guangzhou, China
- Academy of Contemporary Food Engineering, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou, China
- Engineering and Technological Research Centre of Guangdong Province on Intelligent Sensing and Process Control of Cold Chain Foods, & Guangdong Province Engineering Laboratory for Intelligent Cold Chain Logistics Equipment for Agricultural Products, Guangzhou Higher Education Mega Centre, Guangzhou, China
- Food Refrigeration and Computerized Food Technology (FRCFT), Agriculture and Food Science Centre, University College Dublin, National University of Ireland, Dublin 4, Ireland
| |
Collapse
|
3
|
Lee YR, Kim DY, Kim JY, Lee DH, Bae GT, Jang H, Park JY, Jung S, Jung EY, Park CS, Lee HK, Tae HS. Effects of Dielectric Barrier on Water Activation and Phosphorus Compound Digestion in Gas-Liquid Discharges. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 14:40. [PMID: 38202495 PMCID: PMC10780582 DOI: 10.3390/nano14010040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/14/2023] [Accepted: 12/20/2023] [Indexed: 01/12/2024]
Abstract
To generate a stable and effective air-liquid discharge in an open atmosphere, we investigated the effect of the dielectric barrier on the discharge between the pin electrode and liquid surface in an atmospheric-pressure plasma reactor. The atmospheric-pressure plasma reactor used in this study was based on a pin-plate discharge structure, and a metal wire was used as a pin-type power electrode. A plate-type ground electrode was placed above and below the vessel to compare the pin-liquid discharge and pin-liquid barrier discharge (PLBD). The results indicated that the PLBD configuration utilizing the bottom of the vessel as a dielectric barrier outperformed the pin-liquid setup in terms of the discharge stability and that the concentration of reactive species was different in the two plasma modes. PLBD can be used as a digestion technique for determining the phosphorus concentration in natural water sources. The method for decomposing phosphorus compounds by employing PLBD exhibited excellent decomposition performance, similar to the performance of thermochemical digestion-an established conventional method for phosphorus detection in water. The PLBD structure can replace the conventional chemical-agent-based digestion method for determining the total dissolved phosphorus concentration using the ascorbic acid reduction method.
Collapse
Affiliation(s)
- Ye Rin Lee
- School of Electronic and Electrical Engineering, College of IT Engineering, Kyungpook National University, Daegu 41566, Republic of Korea; (Y.R.L.); (J.Y.K.); (D.H.L.); (G.T.B.); (H.J.); (E.Y.J.)
| | - Do Yeob Kim
- Superintelligence Creative Research Laboratory, Electronics and Telecommunications Research Institute (ETRI), Daejeon 34129, Republic of Korea;
| | - Jae Young Kim
- School of Electronic and Electrical Engineering, College of IT Engineering, Kyungpook National University, Daegu 41566, Republic of Korea; (Y.R.L.); (J.Y.K.); (D.H.L.); (G.T.B.); (H.J.); (E.Y.J.)
| | - Da Hye Lee
- School of Electronic and Electrical Engineering, College of IT Engineering, Kyungpook National University, Daegu 41566, Republic of Korea; (Y.R.L.); (J.Y.K.); (D.H.L.); (G.T.B.); (H.J.); (E.Y.J.)
| | - Gyu Tae Bae
- School of Electronic and Electrical Engineering, College of IT Engineering, Kyungpook National University, Daegu 41566, Republic of Korea; (Y.R.L.); (J.Y.K.); (D.H.L.); (G.T.B.); (H.J.); (E.Y.J.)
| | - Hyojun Jang
- School of Electronic and Electrical Engineering, College of IT Engineering, Kyungpook National University, Daegu 41566, Republic of Korea; (Y.R.L.); (J.Y.K.); (D.H.L.); (G.T.B.); (H.J.); (E.Y.J.)
| | - Joo Young Park
- Department of Nano-Bio Convergence, Korea Institute of Materials Science, Changwon 51508, Republic of Korea; (J.Y.P.); (S.J.)
| | - Sunghoon Jung
- Department of Nano-Bio Convergence, Korea Institute of Materials Science, Changwon 51508, Republic of Korea; (J.Y.P.); (S.J.)
| | - Eun Young Jung
- School of Electronic and Electrical Engineering, College of IT Engineering, Kyungpook National University, Daegu 41566, Republic of Korea; (Y.R.L.); (J.Y.K.); (D.H.L.); (G.T.B.); (H.J.); (E.Y.J.)
- The Institute of Electronic Technology, College of IT Engineering, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Choon-Sang Park
- Department of Electrical Engineering, Milligan University, Johnson City, TN 37682, USA;
| | - Hyung-Kun Lee
- Superintelligence Creative Research Laboratory, Electronics and Telecommunications Research Institute (ETRI), Daejeon 34129, Republic of Korea;
| | - Heung-Sik Tae
- School of Electronic and Electrical Engineering, College of IT Engineering, Kyungpook National University, Daegu 41566, Republic of Korea; (Y.R.L.); (J.Y.K.); (D.H.L.); (G.T.B.); (H.J.); (E.Y.J.)
| |
Collapse
|
4
|
Hadinoto K, Niemira BA, Trujillo FJ. A review on plasma-activated water and its application in the meat industry. Compr Rev Food Sci Food Saf 2023; 22:4993-5019. [PMID: 37799092 DOI: 10.1111/1541-4337.13250] [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: 04/11/2023] [Revised: 08/16/2023] [Accepted: 09/15/2023] [Indexed: 10/07/2023]
Abstract
Meat is a nutritious food with a short shelf life, making it challenging to ensure safety, quality, and nutritional value. Foodborne pathogens and oxidation are the main concerns that lead to health risks and economic losses. Conventional approaches like hot water, steam pasteurization, and chemical washes for meat decontamination improve safety but cause nutritional and quality issues. Plasma-activated water (PAW) is a potential alternative to thermal treatment that can reduce oxidation and microbial growth, an essential factor in ensuring safety, quality, and nutritional value. This review explores the different types of PAW and their physiochemical properties. It also outlines the reaction pathways involved in the generation of short-lived and long-lived reactive nitrogen and oxygen species (RONS) in PAW, which contribute to its antimicrobial abilities. The review also highlights current studies on PAW inactivation against various planktonic bacteria, as well as critical processing parameters that can improve PAW inactivation efficacy. Promising applications of PAW for meat curing, thawing, and decontamination are discussed, with emphasis on the need to understand how RONS in PAW affect meat quality. Recent reports on combining PAW with ultrasound, mild heating, and non-thermal plasma to improve inactivation efficacy are also presented. Finally, the need to develop energy-efficient systems for the production and scalability of PAW is discussed for its use as a potential meat disinfectant without compromising meat quality.
Collapse
Affiliation(s)
- Koentadi Hadinoto
- School of Chemical Engineering, University of New South Wales, Sydney, New South Wales, Australia
| | - Brendan A Niemira
- USDA-ARS, Eastern Regional Research Center, Food Safety and Intervention Technologies Unit, Wyndmoor, Pennsylvania, USA
| | - Francisco J Trujillo
- School of Chemical Engineering, University of New South Wales, Sydney, New South Wales, Australia
| |
Collapse
|
5
|
Upadrasta A, Daniels S, Thompson TP, Gilmore B, Humphreys H. In situ generation of cold atmospheric plasma-activated mist and its biocidal activity against surrogate viruses for COVID-19. J Appl Microbiol 2023; 134:lxad181. [PMID: 37580171 DOI: 10.1093/jambio/lxad181] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 07/17/2023] [Accepted: 08/12/2023] [Indexed: 08/16/2023]
Abstract
AIMS To provide an alternative to ultra violet light and vapourized hydrogen peroxide to enhance decontamination of surfaces as part of the response to the COVID-19 pandemic. METHODS AND RESULTS We developed an indirect method for in situ delivery of cold plasma and evaluated the anti-viral activity of plasma-activated mist (PAM) using bacteriophages phi6, MS2, and phiX174, surrogates for SARS-CoV-2. Exposure to ambient air atmospheric pressure derived PAM caused a 1.71 log10 PFU ml-1 reduction in phi6 titer within 5 min and a 7.4 log10 PFU ml-1 reduction after 10 min when the the PAM source was at 5 and 10 cm. With MS2 and phiX174, a 3.1 and 1.26 log10 PFU ml-1 reduction was achieved, respectively, after 30 min. The rate of killing was increased with longer exposure times but decreased when the PAM source was further away. Trace amounts of reactive species, hydrogen peroxide and nitrite were produced in the PAM, and the anti-viral activity was probably attributable to these and their secondary reactive species. CONCLUSIONS PAM exhibits virucidal activity against surrogate viruses for COVID-19, which is time and distance from the plasma source dependent.
Collapse
Affiliation(s)
- Aditya Upadrasta
- Department of Clinical Microbiology, Royal College of Surgeons in Ireland, University of Medicine and Health Sciences, Dublin, D09 YD60, Ireland
| | - Stephen Daniels
- School of Electronic Engineering, Dublin City University, Dublin, D09 V209, Ireland
| | | | - Brendan Gilmore
- School of Pharmacy, Queen's University Belfast, Belfast BT9 7BL, Northern Ireland
| | - Hilary Humphreys
- Department of Clinical Microbiology, Royal College of Surgeons in Ireland, University of Medicine and Health Sciences, Dublin, D09 YD60, Ireland
| |
Collapse
|
6
|
Zhang H, Zhang C, Han Q. Mechanisms of bacterial inhibition and tolerance around cold atmospheric plasma. Appl Microbiol Biotechnol 2023:10.1007/s00253-023-12618-w. [PMID: 37421472 PMCID: PMC10390405 DOI: 10.1007/s00253-023-12618-w] [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: 01/21/2023] [Revised: 05/29/2023] [Accepted: 06/01/2023] [Indexed: 07/10/2023]
Abstract
The grim situation of bacterial infection has undoubtedly become a major threat to human health. In the context of frequent use of antibiotics, a new bactericidal method is urgently needed to fight against drug-resistant bacteria caused by non-standard use of antibiotics. Cold atmospheric plasma (CAP) is composed of a variety of bactericidal species, which has excellent bactericidal effect on microbes. However, the mechanism of interaction between CAP and bacteria is not completely clear. In this paper, we summarize the mechanisms of bacterial killing by CAP in a systematic manner, discuss the responses of bacteria to CAP treatment that are considered to be related to tolerance and their underlying mechanisms, review the recent advances in bactericidal applications of CAP finally. This review indicates that CAP inhibition and tolerance of survival bacteria are a set of closely related mechanisms and suggests that there might be other mechanisms of tolerance to survival bacteria that had not been discovered yet. In conclusion, this review shows that CAP has complex and diverse bactericidal mechanisms, and has excellent bactericidal effect on bacteria at appropriate doses. KEY POINTS: • The bactericidal mechanism of CAP is complex and diverse. • There are few resistant bacteria but tolerant bacteria during CAP treatment. • There is excellent germicidal effect when CAP in combination with other disinfectants.
Collapse
Affiliation(s)
- Hao Zhang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, People's Republic of China
| | - Chengxi Zhang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, People's Republic of China
| | - Qi Han
- Department of Oral Pathology, State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, People's Republic of China.
| |
Collapse
|
7
|
Pourbagher R, Abbaspour‐Fard MH, Sohbatzadeh F, Rohani A, Pourbagher M. Effect of plasma‐activated water generated by surface
DBD
on inactivation of pathogens
Pseudomonas tolaasii
and
Lecanicillium fungicola
and enhancement of storage quality of button mushroom. J FOOD PROCESS ENG 2023. [DOI: 10.1111/jfpe.14312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Affiliation(s)
- Roghayeh Pourbagher
- Department of Biosystems Engineering, Faculty of Agriculture Ferdowsi University of Mashhad Mashhad Iran
| | | | - Farshad Sohbatzadeh
- Department of Atomic and Molecular Physics Faculty of Basic Sciences, University of Mazandaran Babolsar Iran
| | - Abbas Rohani
- Department of Biosystems Engineering, Faculty of Agriculture Ferdowsi University of Mashhad Mashhad Iran
| | - Maryam Pourbagher
- Department of Engineering Faculty of Computer Engineering, Golestan Institute of Higher Education Gorgan Iran
| |
Collapse
|
8
|
Große-Peclum V, Siekmann L, Krischek C, Avramidis G, Ochs C, Viöl W, Plötz M. Using TRIS-Buffered Plasma-Activated Water to Reduce Pathogenic Microorganisms on Poultry Carcasses with Evaluation of Physicochemical and Sensory Parameters. Foods 2023; 12:foods12051113. [PMID: 36900630 PMCID: PMC10000659 DOI: 10.3390/foods12051113] [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: 02/06/2023] [Revised: 03/02/2023] [Accepted: 03/04/2023] [Indexed: 03/09/2023] Open
Abstract
Foodborne diseases are mainly caused by the contamination of meat or meat products with pathogenic microorganisms. In this study, we first investigated the in vitro application of TRIS-buffered plasma-activated water (Tb-PAW) on Campylobacter (C.) jejuni and Escherichia (E.) coli, with a reduction of approx. 4.20 ± 0.68 and 5.12 ± 0.46 log10 CFU/mL. Furthermore, chicken and duck thighs (inoculated with C. jejuni or E. coli) and breasts (with natural microflora) with skin were sprayed with Tb-PAW. Samples were packed under a modified atmosphere and stored at 4 °C for 0, 7, and 14 days. The Tb-PAW could reduce C. jejuni on days 7 and 14 (chicken) and E. coli on day 14 (duck) significantly. In chicken, there were no significant differences in sensory, pH-value, color, and antioxidant activity, but %OxyMb levels decreased, whereas %MetMb and %DeoMb increased. In duck, we observed slight differences in pH-value, color, and myoglobin redox forms for the Tb-PAW, which were not perceived by the sensory test persons. With only slight differences in product quality, its application as a spray treatment may be a useful method to reduce C. jejuni and E. coli on chicken and duck carcasses.
Collapse
Affiliation(s)
- Vanessa Große-Peclum
- Institute of Food Quality and Food Safety, University of Veterinary Medicine Hannover, Foundation, 30173 Hannover, Germany
| | - Lisa Siekmann
- Institute of Food Quality and Food Safety, University of Veterinary Medicine Hannover, Foundation, 30173 Hannover, Germany
- Correspondence: ; Tel.: +49-511-856-7314
| | - Carsten Krischek
- Institute of Food Quality and Food Safety, University of Veterinary Medicine Hannover, Foundation, 30173 Hannover, Germany
| | - Georg Avramidis
- Faculty Engineering and Health, University of Applied Sciences and Arts, 37085 Göttingen, Germany
| | - Christian Ochs
- Faculty Engineering and Health, University of Applied Sciences and Arts, 37085 Göttingen, Germany
| | - Wolfgang Viöl
- Faculty Engineering and Health, University of Applied Sciences and Arts, 37085 Göttingen, Germany
| | - Madeleine Plötz
- Institute of Food Quality and Food Safety, University of Veterinary Medicine Hannover, Foundation, 30173 Hannover, Germany
| |
Collapse
|
9
|
Jyung S, Kang JW, Kang DH. Inactivation of Listeria monocytogenes through the synergistic interaction between plasma-activated water and organic acid. Food Res Int 2023; 167:112687. [PMID: 37087257 DOI: 10.1016/j.foodres.2023.112687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 02/24/2023] [Accepted: 03/09/2023] [Indexed: 03/17/2023]
Abstract
This study observed that when plasma-activated water (PAW) was combined with organic acid, it showed a synergistic inactivation effect on Listeria monocytogenes, which is highly resistant to PAW. When comparing various organic acids, lactic acid (LA) showed the greatest synergistic effect, followed by malic acid (MA), citric acid (CA), and acetic acid (AA), whereas propionic acid (PA) did not show a synergistic effect. Organic acid lowered the activity of ROS defense enzymes (catalase, superoxide dismutase) by reducing intracellular pH (pHi), which induced the increase in the accumulation of ROS of PAW within the cell. In the end, the synergistic inactivation effect appeared as the increased occurrence of oxidative damage when organic acid was combined as a series of preceding causes. In this case, LA with the greatest ability to lower the pH induced the greatest synergistic effect, suggesting that LA is the best candidate to be combined with PAW. As a result of observing changes in inactivation activity for L. monocytogenes of PAW combined with 1.0% LA while storing at - 80, -20, 4, 25, & 37 °C for 30 days, respectively, it was confirmed that the lower the temperature, the lower the activity loss during the storage period, and that it had an activity of 3.72 log reduction based on 10 min treatment when stored at - 80 °C for 30 days. Application of PAW combined with 1.0% LA stored at - 80 °C for 30 days to mackerel inoculated with L. monocytogenes in ice form resulted in a decrease of 4.53 log after 120 min treatment, without changing the quality of mackerel. These results suggest that combining LA with PAW can be an effective control strategy for L. monocytogenes with high resistance to PAW, and can be effectively utilized, even in ice form.
Collapse
|
10
|
Fernández-Gómez P, Cobo-Díaz JF, Oliveira M, González-Raurich M, Alvarez-Ordóñez A, Prieto M, Walsh JL, Sivertsvik M, Noriega-Fernández E, López M. Susceptibility and transcriptomic response to plasma-activated water of Listeria monocytogenes planktonic and sessile cells. Food Microbiol 2023; 113:104252. [PMID: 37098419 DOI: 10.1016/j.fm.2023.104252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 03/05/2023] [Accepted: 03/06/2023] [Indexed: 03/09/2023]
Abstract
Plasma-Activated Water (PAW) was generated from tap water using a surface dielectric barrier discharge at different discharge power (26 and 36 W) and activation time (5 and 30 min). The inactivation of a three-strain Listeria monocytogenes cocktail in planktonic and biofilm state was evaluated. PAW generated at 36 W-30 min showed the lowest pH and the highest hydrogen peroxide, nitrates, nitrites contents and effectiveness against cells on planktonic state, resulting in 4.6 log reductions after a 15-min treatment. Although the antimicrobial activity in biofilms formed on stainless steel and on polystyrene was lower, increasing the exposure time to 30 min allowed an inactivation >4.5 log cycles. The mechanisms of action of PAW were investigated using chemical solutions that mimic its physico-chemical characteristics and also RNA-seq analysis. The main transcriptomic changes affected carbon metabolism, virulence and general stress response genes, with several overexpressed genes belonging to the cobalamin-dependent gene cluster.
Collapse
|
11
|
Effect of the pH on the Antibacterial Potential and Cytotoxicity of Different Plasma-Activated Liquids. Int J Mol Sci 2022; 23:ijms232213893. [PMID: 36430372 PMCID: PMC9693261 DOI: 10.3390/ijms232213893] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 11/06/2022] [Accepted: 11/08/2022] [Indexed: 11/16/2022] Open
Abstract
In this study, different plasma-activated liquids were evaluated for their antimicrobial effects against Escherichia coli, as well as for their cytotoxicity on mammalian cells. The PALs were prepared from distilled (DIS), deionized (DI), filtered (FIL), and tap (TAP) water. Additionally, 0.9% NaCl saline solution (SAL) was plasma-activated. These PALs were prepared using 5 L/min air gliding arc plasma jet for up to 60.0 min of exposure. Subsequently, the physicochemical properties, such as, the oxidation-reduction potential (ORP), the pH, the conductivity, and the total dissolved solids (TDS) were characterized by a water multiparameter. The PALs obtained showed a drastic decrease in the pH with increasing plasma exposure time, in contrast, the conductivity and TDS increased. In a general trend, the UV-vis analyses identified a higher production of the following reactive species of nitrogen and oxygen (RONS), HNO2, H2O2, NO3-, and NO2-. Except for the plasma-activated filtered water (PAW-FIL), where there was a change in the position of NO2- and NO3- at some pHs, The higher production of HNO2 and H2O2-reactive species was observed at a low pH. Finally, the standardized suspensions of Escherichia coli were exposed to PAL for up to 60.0 min. The plasma-activated deionized water (PAW-DI pH 2.5), plasma-activated distilled water (PAW-DIS pH 2.5 and 3), and plasma-activated tap water (PAW-TAP 3.5) showed the best antimicrobial effects at exposure times of 3.0, 10.0, and 30.0 min, respectively. The MTT analysis demonstrated low toxicity of all of the PAL samples. Our results indicate that the plasma activation of different liquids using the gliding arc system can generate specific physicochemical conditions that produce excellent antibacterial effects for E. coli with a safe application, thus bringing future contributions to creating new antimicrobial protocols.
Collapse
|
12
|
Effects of Plasma on Physical Properties of Water: Nanocrystalline-to-Amorphous Phase Transition and Improving Produce Washing. PLASMA 2022. [DOI: 10.3390/plasma5040034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Washing fresh produce using Plasma-activated water recently became a promising eco-friendly alternative to using chemical additives such as Chlorine. We discuss the produce-washing experiments that illustrate that addition of plasma to washing water is a multi-faced phenomena. Not only it increases the sterilization ability of water by killing pathogens, but it also has improved washibility: the ability to remove pathogens from the cleaning surface. We propose an explanation of these features based on the recently discoveries that many physical and chemical properties of water change their temperature dependence between about 35 and 60 degrees Celsius. In particular, heat conductance, light absorption, and surface tension all change their temperature dependence. These drastic changes were associated with water gradually changing its mesoscopic structure: while at the higher temperatures water is a uniform media (amorphous state), at the temperatures below transition it consists of many nano-to-micro-scale clusters (crystalline state). This transition is similar to the second order phase transition. In the present paper we propose that treating water with non-thermal plasma (adding plasma-created active compounds) can lower the temperature of the transition and thus cause a significant change in such physical quantities as surface tension, viscosity, freezing rate, and wettability and washability.
Collapse
|
13
|
Jyung S, Kang JW, Kang DH. L. monocytogens exhibited less cell membrane damage, lipid peroxidation, and intracellular reactive oxygen species accumulation after plasma-activated water treatment compared to E. coli O157:H7 and S. Typhimurium. Food Microbiol 2022; 108:104098. [DOI: 10.1016/j.fm.2022.104098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 07/19/2022] [Accepted: 07/19/2022] [Indexed: 11/04/2022]
|
14
|
Human Trial for the Effect of Plasma-Activated Water Spray on Vaginal Cleaning in Patients with Bacterial Vaginosis. Med Sci (Basel) 2022; 10:medsci10020033. [PMID: 35736353 PMCID: PMC9227462 DOI: 10.3390/medsci10020033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 05/03/2022] [Accepted: 06/16/2022] [Indexed: 11/18/2022] Open
Abstract
Underwater plasma discharge temporally produces several reactive radicals and/or free chlorine molecules in water, which is responsible for antimicrobial activity. Hence, it can simply sanitize tap water without disinfectant treatment. Additionally, the spraying technique using cleaning water exploits deep application in the narrow and curved vaginal tract of patients. Herein, we attempted a clinical trial to evaluate the vaginal cleaning effect of spraying plasma-activated water (PAW) to patients with vaginitis (46 patients). The efficacy was compared with treatment with betadine antiseptics used to treat bacterial vaginosis (40 patients). To evaluate the cleaning effect, Gram staining of the vaginal secretions was conducted before and after spraying PAW or betadine treatment (BT). Consequently, PAW-sprayed (PAWS) patients (22.3%) showed a better vaginal cleaning effect against Gram-positive and -negative bacteria than BT patients (14.4%). Moreover, 18 patients in the BT group showed worsened vaginal contamination, whereas five patients in the PAWS group showed worsened vaginal contamination. Taken together, the noncontact method of spraying cleaning water to the vagina exhibited a reliable vaginal cleaning effect without further bacterial infection compared with BT. Therefore, we suggest a clinical application of the spraying method using PAW for vaginal cleaning to patients with vaginitis without disinfectants and antibiotics.
Collapse
|
15
|
Wang H, Li Y, Xi Q, Han R, Cullen PJ, Du Q, Yang Y, Forghani F, Zhang J, Wang J. Application of plasma activated water for Escherichia coli decontamination and shelf-life extension of kale. FOOD QUALITY AND SAFETY 2022. [DOI: 10.1093/fqsafe/fyac041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
The aim of this study was to examine the effectiveness of plasma activated water (PAW) for inactivating Escherichia coli and retention of key quality factors for kale. Different plasma discharge times (1, 2, 3, 4, 5 and 10 minutes) and different exposure times (2, 4, 6, 8, 10 and 15 minutes) were used to investigate the inactivation effect of E. coli spot-inoculated on kale. The influence of different exposure times on the pH, hardness and color of kale was studied post- treatment. In addition, the effects of PAW on the shelf-life of kale over 12 days of storage at 4 °C was investigated. The results showed that after the treatment of 5-PAW-8 (8 min treatment by PAW generated by 5 min plasma discharge), the population of E. coli on kale was reduced about 1.55 log CFU/g and the changes of pH, hardness and color of kale were not significant (P > 0.05). During the storage period after 5-PAW-8 treatment, the statue of hardness, weight loss, color, surface morphology and ascorbic acid were found to be better than two control groups (P < 0.05). Furthermore, no significant changes were observed in pH values, the content of total phenols and 1,1-dipheny1-2-picrylhydrazyl radical-scavenging capacity (P > 0.05). It is indicated that PAW treatment is a promising method for improving the microbiological safety and extending the shelf-life of kale.
Collapse
Affiliation(s)
| | | | | | | | - Patrick J Cullen
- School of Chemical and Biomolecular Engineering, University of Sydney, Sydney , NSW, Australia
| | | | | | - Fereidoun Forghani
- Molecular Epidemiology, Inc., 15300 Bothell Way NE , Lake Forest Park, WA 98155, USA
| | | | | |
Collapse
|
16
|
Indigo Carmine Degradation in Water Induced by a Pulsed Positive Corona Discharge in Air: Discharge and Postdischarge Effects. PLASMA 2022. [DOI: 10.3390/plasma5020021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
In recent years, one of the fastest growing technological applications in the field of nonthermal plasmas is the degradation of organic contaminants of water. In this work, the degradation of indigo carmine (IC) in water induced by a pulsed positive corona discharge operating in ambient air is reported. Degradation levels in different volumes of IC in solution with distilled water treated with different plasma exposure times immediately after discharge (0 h), and in the postdischarge up to 24 h were examined. To explain the IC discoloration in the postdischarge phase, a chemical model was developed. The stability of the reactive species in solution nitrate (NO3−), nitrite (NO2−) and hydrogen peroxide (H2O2), as well as the properties of the solution (electrical conductivity, pH) were also measured. The results suggest that the hydroxyl radical (OH˙) as well as ozone (O3) are the main oxidizing species during the discharge phase, being primarily formed in the gas phase through plasma-mediated reactions and then transferred to the liquid by diffusion, while the OH˙ production in the bulk liquid through the decomposition of peroxinitrous acid (O=NOOH) plays a major role in the IC degradation during the postdischarge. These results are associated with a noticeably increase in the energy-yield values observed at 24 h post-treatment.
Collapse
|
17
|
Effect of plasma activated water on the nutritional composition, storage quality and microbial safety of beef. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2021.112794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
18
|
Wang Q, Salvi D. Recent progress in the application of plasma-activated water (PAW) for food decontamination. Curr Opin Food Sci 2021. [DOI: 10.1016/j.cofs.2021.04.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
19
|
Efficacy optimization of plasma-activated water for food sanitization through two reactor design configurations. INNOV FOOD SCI EMERG 2021. [DOI: 10.1016/j.ifset.2021.102867] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
|
20
|
Asimakopoulou E, Εkonomou SΙ, Papakonstantinou P, Doran O, Stratakos AC. Inhibition of corrosion causing Pseudomonas aeruginosa using plasma-activated water. J Appl Microbiol 2021; 132:2781-2794. [PMID: 34846774 DOI: 10.1111/jam.15391] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 11/24/2021] [Accepted: 11/28/2021] [Indexed: 12/28/2022]
Abstract
AIMS The cost of Microbiologically Influenced Corrosion (MIC) significantly affects a wide range of sectors. This study aims to assess the efficiency of a novel technology based on the use of plasma-activated water (PAW) in inhibiting corrosion caused by bacteria. METHODS AND RESULTS This study evaluated the effectiveness of PAW, produced by a plasma bubble reactor, in reducing corrosion causing Pseudomonas aeruginosa planktonic cells in tap water and biofilms were grown onto stainless steel (SS) coupons. Planktonic cells and biofilms were treated with PAW at different discharge frequencies (500-1500 Hz) and exposure times (0-20 min). P. aeruginosa cells in tap water were significantly reduced after treatment, with higher exposure times and discharge frequencies achieving higher reductions. Also, PAW treatment led to a gradual reduction for young and mature biofilms, achieving >4-Log reductions after 20 min. Results were also used to develop two predictive inactivation models. CONCLUSIONS This work presents evidence that PAW can be used to inactivate both planktonic cells and biofilms of P. aeruginosa. Experimental and theoretical results also demonstrate that reduction is dependent on discharge frequency and exposure time. SIGNIFICANCE AND IMPACT OF THE STUDY This work demonstrates the potential of using PAW as means to control MIC.
Collapse
Affiliation(s)
| | - Sotiriοs Ι Εkonomou
- Faculty of Health and Applied Sciences (HAS), Centre for Research in Biosciences, University of the West of England, Bristol, UK
| | | | - Olena Doran
- Faculty of Health and Applied Sciences (HAS), University of the West of England, Coldharbour Ln, Bristol, UK
| | - Alexandros Ch Stratakos
- Centre for Research in Biosciences, Faculty of Health and Applied Sciences (HAS), University of the West of England, Bristol, UK
| |
Collapse
|
21
|
Zhao YM, Oliveira M, Burgess CM, Cropotova J, Rustad T, Sun DW, Tiwari BK. Combined effects of ultrasound, plasma-activated water, and peracetic acid on decontamination of mackerel fillets. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111957] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
|
22
|
Antibacterial activity and the physicochemical characteristics of plasma activated water on tomato surfaces. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111879] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
23
|
Wang Q, Salvi D. Evaluation of plasma-activated water (PAW) as a novel disinfectant: Effectiveness on Escherichia coli and Listeria innocua, physicochemical properties, and storage stability. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111847] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
24
|
Guo D, Liu H, Zhou L, Xie J, He C. Plasma-activated water production and its application in agriculture. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2021; 101:4891-4899. [PMID: 33860533 DOI: 10.1002/jsfa.11258] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 03/24/2021] [Accepted: 04/16/2021] [Indexed: 05/27/2023]
Abstract
The use of plasma-activated water (PAW) treatment is a promising technology that has many advantages, such as high efficiency, flexibility, environmental safety, and no residue. Thus, PAW has been applied in the agriculture industry to increase agricultural production. The application of PAW technology in agricultural production should emphasize its systematic nature, controllability, and operability, making it practical. This review systematically illustrates the production of PAW and the factors influencing it. The application of PAW in agriculture and its mechanism are discussed, including the effect on seed germination, the promotion of plant growth, and the control of plant diseases and pests. The implications of PAW for agriculture production and some of the related challenges are discussed. This review provides a deeper understanding of the viability of PAW technology in agriculture production. © 2021 Society of Chemical Industry.
Collapse
Affiliation(s)
- Dingmeng Guo
- Department of Environmental Science and Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, P.R. China
| | - Hongxia Liu
- Department of Environmental Science and Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, P.R. China
| | - Lei Zhou
- Jiangsu Tester Professional Testing Co., Ltd, Suqian, P.R. China
| | - Jinzhuo Xie
- Department of Environmental Science and Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, P.R. China
| | - Chi He
- Department of Environmental Science and Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, P.R. China
| |
Collapse
|
25
|
Antimicrobial Effect of Plasma-Activated Tap Water on Staphylococcus aureus, Escherichia coli, and Candida albicans. WATER 2021. [DOI: 10.3390/w13111480] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
In this study, the potential antimicrobial activity of plasma-activated tap water (PAW) was evaluated against Staphylococcus aureus, Escherichia coli, and Candida albicans. For this, PAW was prepared in a gliding arc plasma system using two treatment conditions: stagnant water and water stirring by a magnetic stirrer, called moving water. Subsequently, their oxidation-reduction potential (ORP), pH, electrical conductivity (σ), and total dissolved solids (TDS) were monitored in different areas of the sample divided according to the depth of the beaker. It was observed that PAW obtained in dynamic conditions showed a more uniform acidity among the evaluated areas with pH 3.53 and ORP of 215 mV. Finally, standardized suspensions of Staphylococcus aureus (ATCC 6538), Escherichia coli (ATCC 10799), and Candida albicans (SC 5314) were treated with PAW, and the reduction of viable cells determined the antimicrobial effect. Our results indicate that the tap water, activated by plasma treatment using gliding arc, is an excellent inactivation agent in the case of Staphylococcus aureus and Escherichia coli. On the other hand, no significant antimicrobial activity was achieved for Candida albicans.
Collapse
|
26
|
Dzimitrowicz A, Jamroz P, Pohl P, Babinska W, Terefinko D, Sledz W, Motyka-Pomagruk A. Multivariate Optimization of the FLC-dc-APGD-Based Reaction-Discharge System for Continuous Production of a Plasma-Activated Liquid of Defined Physicochemical and Anti-Phytopathogenic Properties. Int J Mol Sci 2021; 22:ijms22094813. [PMID: 34062832 PMCID: PMC8124219 DOI: 10.3390/ijms22094813] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 04/23/2021] [Accepted: 04/27/2021] [Indexed: 01/09/2023] Open
Abstract
To the present day, no efficient plant protection method against economically important bacterial phytopathogens from the Pectobacteriaceae family has been implemented into agricultural practice. In this view, we have performed a multivariate optimization of the operating parameters of the reaction-discharge system, employing direct current atmospheric pressure glow discharge, generated in contact with a flowing liquid cathode (FLC-dc-APGD), for the production of a plasma-activated liquid (PAL) of defined physicochemical and anti-phytopathogenic properties. As a result, the effect of the operating parameters on the conductivity of PAL acquired under these conditions was assessed. The revealed optimal operating conditions, under which the PAL of the highest conductivity was obtained, were as follows: flow rate of the solution equaled 2.0 mL min-1, the discharge current was 30 mA, and the inorganic salt concentration (ammonium nitrate, NH4NO3) in the solution turned out to be 0.50% (m/w). The developed PAL exhibited bacteriostatic and bactericidal properties toward Dickeya solani IFB0099 and Pectobacterium atrosepticum IFB5103 strains, with minimal inhibitory and minimal bactericidal concentrations equaling 25%. After 24 h exposure to 25% PAL, 100% (1-2 × 106) of D. solani and P. atrosepticum cells lost viability. We attributed the antibacterial properties of PAL to the presence of deeply penetrating, reactive oxygen and nitrogen species (RONS), which were, in this case, OH, O, O3, H2O2, HO2, NH, N2, N2+, NO2-, NO3-, and NH4+. Putatively, the generated low-cost, eco-friendly, easy-to-store, and transport PAL, exhibiting the required antibacterial and physicochemical properties, may find numerous applications in the plant protection sector.
Collapse
Affiliation(s)
- Anna Dzimitrowicz
- Department of Analytical Chemistry and Chemical Metallurgy, Wroclaw University of Science and Technology, 27 Wybrzeze St. Wyspianskiego, 50-370 Wroclaw, Poland; (P.J.); (P.P.); (D.T.)
- Correspondence: (A.D.); (A.M.-P.); Tel.: +48-71-320-2815 (A.D.); +48-58-523-6330 (A.M.-P.)
| | - Piotr Jamroz
- Department of Analytical Chemistry and Chemical Metallurgy, Wroclaw University of Science and Technology, 27 Wybrzeze St. Wyspianskiego, 50-370 Wroclaw, Poland; (P.J.); (P.P.); (D.T.)
| | - Pawel Pohl
- Department of Analytical Chemistry and Chemical Metallurgy, Wroclaw University of Science and Technology, 27 Wybrzeze St. Wyspianskiego, 50-370 Wroclaw, Poland; (P.J.); (P.P.); (D.T.)
| | - Weronika Babinska
- Laboratory of Plant Protection and Biotechnology, Intercollegiate Faculty of Biotechnology University of Gdansk and Medical University of Gdansk, University of Gdansk, 58 Abrahama, 80-307 Gdansk, Poland; (W.B.); (W.S.)
| | - Dominik Terefinko
- Department of Analytical Chemistry and Chemical Metallurgy, Wroclaw University of Science and Technology, 27 Wybrzeze St. Wyspianskiego, 50-370 Wroclaw, Poland; (P.J.); (P.P.); (D.T.)
| | - Wojciech Sledz
- Laboratory of Plant Protection and Biotechnology, Intercollegiate Faculty of Biotechnology University of Gdansk and Medical University of Gdansk, University of Gdansk, 58 Abrahama, 80-307 Gdansk, Poland; (W.B.); (W.S.)
| | - Agata Motyka-Pomagruk
- Laboratory of Plant Protection and Biotechnology, Intercollegiate Faculty of Biotechnology University of Gdansk and Medical University of Gdansk, University of Gdansk, 58 Abrahama, 80-307 Gdansk, Poland; (W.B.); (W.S.)
- Correspondence: (A.D.); (A.M.-P.); Tel.: +48-71-320-2815 (A.D.); +48-58-523-6330 (A.M.-P.)
| |
Collapse
|
27
|
Soni A, Choi J, Brightwell G. Plasma-Activated Water (PAW) as a Disinfection Technology for Bacterial Inactivation with a Focus on Fruit and Vegetables. Foods 2021; 10:foods10010166. [PMID: 33467523 PMCID: PMC7830122 DOI: 10.3390/foods10010166] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 01/10/2021] [Accepted: 01/12/2021] [Indexed: 12/11/2022] Open
Abstract
Plasma-activated water (PAW) is generated by treating water with cold atmospheric plasma (CAP) using controllable parameters, such as plasma-forming voltage, carrier gas, temperature, pulses, or frequency as required. PAW is reported to have lower pH, higher conductivity, and higher oxygen reduction potential when compared with untreated water due to the presence of reactive species. PAW has received significant attention from researchers over the last decade due to its non-thermal and non-toxic mode of action especially for bacterial inactivation. The objective of the current review is to develop a summary of the effect of PAW on bacterial strains in foods as well as model systems such as buffers, with a specific focus on fruit and vegetables. The review elaborated the properties of PAW, the effect of various treatment parameters on its efficiency in bacterial inactivation along with its usage as a standalone technology as well as a hurdle approach with mild thermal treatments. A section highlighting different models that can be employed to generate PAW alongside a direct comparison of the PAW characteristics on the inactivation potential and the existing research gaps are also included. The mechanism of action of PAW on the bacterial cells and any reported effects on the sensory qualities and shelf life of food has been evaluated. Based on the literature, it can be concluded that PAW offers a significant potential as a non-chemical and non-thermal intervention for bacterial inactivation, especially on food. However, the applicability and usage of PAW depend on the effect of environmental and bacterial strain-based conditions and cost-effectiveness.
Collapse
Affiliation(s)
- Aswathi Soni
- Food Assurance, AgResearch, Palmerston North 4442, New Zealand;
- Correspondence: ; Tel.: +64-21-0860-7979
| | - Jonghyun Choi
- The New Zealand Institute for Plant and Food Research Ltd., Private Bag 3230, Waikato Mail Centre, Hamilton 3240, New Zealand;
| | - Gale Brightwell
- Food Assurance, AgResearch, Palmerston North 4442, New Zealand;
- New Zealand Food Safety Science Research Centre, Palmerston North 4474, New Zealand
| |
Collapse
|
28
|
Xiang Q, Fan L, Li Y, Dong S, Li K, Bai Y. A review on recent advances in plasma-activated water for food safety: current applications and future trends. Crit Rev Food Sci Nutr 2020; 62:2250-2268. [PMID: 33261517 DOI: 10.1080/10408398.2020.1852173] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Plasma-activated water (PAW), the water or solutions treated with atmospheric cold plasma, is an eco-friendly technique with minimal changes in food products, making it a befitting alternative to traditional disinfection methods. Due to its potential microbicidal properties, PAW has been receiving increasing attention for applications in the food, agricultural, and biomedical fields. In this article, we aimed at presenting an overview of recent studies on the generation methods, physicochemical properties, and antimicrobial activity of PAW, as well as its application in the food industry. Specific areas were well discussed including microbial decontamination of food products, reduction of pesticide residues, meat curing, sprouts production, and disinfection of food contact materials. In addition, the factors influencing PAW efficiency were also well illustrated in detail, such as discharge parameters, types and amounts of microorganisms, characteristics of the liquid solution and food products, and treatment time. Moreover, the strategies to improve the efficacy of PAW were also presented in combination with other technologies. Furthermore, the salient drawbacks of this technology were discussed and the important areas for future research were also highlighted. Overall, the present review provides important insights for the application of PAW in the food industry.
Collapse
Affiliation(s)
- Qisen Xiang
- College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou, PR China.,Henan Key Laboratory of Cold Chain Food Quality and Safety Control, Zheng, PR China
| | - Liumin Fan
- College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou, PR China.,Henan Key Laboratory of Cold Chain Food Quality and Safety Control, Zheng, PR China
| | - Yunfei Li
- College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou, PR China.,Henan Key Laboratory of Cold Chain Food Quality and Safety Control, Zheng, PR China
| | - Shanshan Dong
- College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou, PR China.,Henan Key Laboratory of Cold Chain Food Quality and Safety Control, Zheng, PR China
| | - Ke Li
- College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou, PR China.,Henan Key Laboratory of Cold Chain Food Quality and Safety Control, Zheng, PR China
| | - Yanhong Bai
- College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou, PR China.,Henan Key Laboratory of Cold Chain Food Quality and Safety Control, Zheng, PR China
| |
Collapse
|
29
|
Inactivation of Dermatophytes Causing Onychomycosis and Its Therapy Using Non-Thermal Plasma. J Fungi (Basel) 2020; 6:jof6040214. [PMID: 33050542 PMCID: PMC7712512 DOI: 10.3390/jof6040214] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 09/18/2020] [Accepted: 10/01/2020] [Indexed: 11/28/2022] Open
Abstract
Onychomycosis is one of the most common nail disorders. Its current treatment is not satisfactorily effective and often causes adverse side effects. This study aims to determine the optimal conditions for non-thermal plasma (NTP) inactivation of the most common dermatophytes in vitro and to apply it in patient`s therapy. The in vitro exposure to NTP produced by negative DC corona discharge caused full inactivation of Trichophyton spp. if applied during the early growth phases. This effect decreased to negligible inactivation with the exposure applied six days after inoculation. In a group of 40 patients with onychomycosis, NTP therapy was combined with nail plate abrasion and refreshment (NPAR) or treatment with antimycotics. The cohort included 17 patients treated with NPAR combined with NTP, 11 patients treated with antimycotics and NTP, and 12 patients treated with NPAR alone. The combination of NPAR and NTP resulted in clinical cure in more than 70% of patients. The synergistic effect of NPAR and NTP caused 85.7% improvement of mycological cure confirmed by negative microscopy and culture of the affected nail plate. We conclude that NTP can significantly improve the treatment of onychomycosis.
Collapse
|