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Shi H, Li C, Lu H, Zhu J, Tian S. Synergistic effect of electrolyzed water generated by sodium chloride combined with dimethyl dicarbonate for inactivation of Listeria monocytogenes on lettuce. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2023; 103:7905-7913. [PMID: 37490703 DOI: 10.1002/jsfa.12884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 04/11/2023] [Accepted: 07/26/2023] [Indexed: 07/27/2023]
Abstract
BACKGROUND Electrolyzed water (EW) is recognized as an effective way to control and reduce pathogens in vegetables. However, the disinfection efficacy of EW alone is limited. In this work, the bactericidal activity and biofilm removal capability of EW, generated by adding NaCl to a portable EW generator, were investigated with special reference to Listeria monocytogenes. Furthermore, the impact of EW in combination with dimethyl dicarbonate (DMDC) in reducing the microbial load and improving the overall quality of lettuce during refrigerated storage was evaluated. RESULTS EW with 0.3% NaCl (SEW) had the highest bactericidal activity against L. monocytogenes. The pathogen treated with SEW exhibited lower superoxide dismutase activity and more leakage of proteins and nucleic acids than in the case of EW. Furthermore, the use of SEW resulted in changes in the cell permeability and morphology of L. monocytogenes. A decrease in adhesion and collapse of the biofilm architecture were also observed, indicating that SEW was more effective for inactivating L. monocytogenes cells compared to EW. For untreated lettuce, the populations of the total plate count and inoculated L. monocytogenes decreased by 2.47 and 2.35 log CFU g-1 , respectively, after the combined SEW/DMDC treatment for 3 min. The use of SEW alone or combined with DMDC did not negatively impact the lettuce color values, titratable acid, ascorbic acid and soluble solids compared to the control group. CONCLUSION SEW in combination with DMDC can be used as a novel and potentially effective disinfection strategy for ensuring the safety of vegetable consumption. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Honghui Shi
- College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, China
| | - Chunliu Li
- College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, China
| | - Haixia Lu
- College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, China
| | - Junli Zhu
- College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, China
| | - Shiyi Tian
- College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, China
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2
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Chen Q, Zhou Y, Yun X, Zhao N, Bu H, Dong T. Bactericidal Efficacy and Mechanisms of Non-Electrolytic Slightly Acidic Hypochlorous Water on Pseudomonas fragi and Pseudomonas fluorescens. Foods 2023; 12:3980. [PMID: 37959099 PMCID: PMC10647583 DOI: 10.3390/foods12213980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 09/21/2023] [Accepted: 09/22/2023] [Indexed: 11/15/2023] Open
Abstract
Chilled pork is frequently contaminated with Pseudomonas fragi and Pseudomonas fluorescens. In this study, the bactericidal efficacy and mechanisms of non-electrolytic slightly acidic hypochlorous water (NE-SAHW) against two strains of these two species were evaluated. The results showed that the antibacterial efficacy of NE-SAHW was positively correlated with the concentration level of NE-SAHW and negatively correlated with the initial populations of the strains. The strains of small populations were completely inhibited when provided with each level of NE-SAHW. The killed cells of P. fragi were 0.94, 1.39, 4.02, and 5.60 log10 CFU/mL, respectively, and of P. fluorescens they were 1.21, 1.52, 4.14, and 5.74 log10 CFU/mL, respectively, when the initial populations of the strains were at high levels (about 7 log10 CFU/mL). Both strains were completely killed within 12 s with the available chlorine concentration (ACC) of 50 mg/L of NE-SAHW. Morphological changes in both cells were observed by using a Scanning Electron Microscope (SEM) and it was discovered that the cell membranes were damaged, which led to the leakage of the intracellular substances, including K+, nucleic acid, and protein. In terms of the Fourier Transform Infrared Spectroscopy (FTIR) results, NE-SAHW destroyed the structures of membrane proteins and cell structure proteins, and influenced the composition of polysaccharides. The bacteria were definitely dead after treatment by NE-SAHW compared to the control according to the results of flow cytometry. These results demonstrated the potential bactericidal property of NE-SAHW when applied to the meat and other food sterilization industries.
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Affiliation(s)
- Qianru Chen
- College of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China; (Q.C.); (Y.Z.); (X.Y.)
| | - Yanfang Zhou
- College of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China; (Q.C.); (Y.Z.); (X.Y.)
| | - Xueyan Yun
- College of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China; (Q.C.); (Y.Z.); (X.Y.)
| | - Namula Zhao
- Shanghai Wanlay Environmental Technology Co., Ltd., Shanghai 200129, China;
| | - Hongyu Bu
- Inner Mongolia Institute for Drug Control, West Taoli Street, Hohhot 010020, China;
| | - Tungalag Dong
- College of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China; (Q.C.); (Y.Z.); (X.Y.)
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3
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Lin Z, Wang G, Zhang K, Jiang S, Li S, Yang H. Metabolomics investigation of global responses of Cronobacter sakazakii against common sanitizing in infant formula processing environments. Food Res Int 2023; 172:113162. [PMID: 37689917 DOI: 10.1016/j.foodres.2023.113162] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 06/14/2023] [Accepted: 06/16/2023] [Indexed: 09/11/2023]
Abstract
Cronobacter sakazakii, an opportunistic bacterium, has raised a serious outbreak in powdered infant formula recent years. In this work, four sanitizing strategies used during infant formula processing, including chlorine, quaternary ammonium chloride (QAC), 60 °C heating, and malic acid (MA), were utilized against C. sakazakii among planktonic, air-dried (A), and air-dried & washed (AW) state, followed by an exploration of the metabolic responses induced by these treatments via a dual-platform metabolomics analysis with the ultra-high performance liquid chromatography-mass spectrometry and nuclear magnetic resonance. In the planktonic state, MA was the most effective in inhibiting bacterial growth, followed by chlorine, QAC, and 60 °C heating. Under A state, the efficacy of heating improved considerably, compared to that in the planktonic state, and remained unaltered under AW state. Chlorine and QAC were ineffective to control bacterial growth under A state, but their efficacy rose under AW state. Furthermore, the metabolomic analysis revealed chlorine induces amino acids catabolism, membrane lysis, and depression in carbohydrate and nucleotide metabolism in both planktonic and AW states, while the initiation of antioxidation mechanism was only found under AW state. Although the metabolic change caused by QAC in the planktonic state was similar to chlorine, the accumulation of osmoprotectant and membrane phospholipids within the AW cells reflected the effort to restore intracellular homeostasis upon QAC. Heating was characterized by considerable amino acid anabolism, along with mildly perturbed carbohydrate and nucleotide metabolism for heat shock protein preparation in both states. Lastly, MA promoted amino acid-dependent acid resistance under the planktonic state, and the regulation of antioxidation and osmoprotection under AW state. The metabolomics study elucidated the intracellular perturbation induced by common sanitizing, as well as the bacterial response, which provides insights for novel sanitization development.
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Affiliation(s)
- Zejia Lin
- Department of Food Science & Technology, National University of Singapore, Singapore 117542, Singapore.
| | - Guoshu Wang
- Department of Food Science & Technology, National University of Singapore, Singapore 117542, Singapore
| | - Kexin Zhang
- Department of Food Science & Technology, National University of Singapore, Singapore 117542, Singapore
| | - Shaoqian Jiang
- Department of Food Science & Technology, National University of Singapore, Singapore 117542, Singapore
| | - Songshen Li
- Department of Food Science & Technology, National University of Singapore, Singapore 117542, Singapore
| | - Hongshun Yang
- Shaoxing Key Laboratory of Traditional Fermentation Food and Human Health, Jiangnan University (Shaoxing) Industrial Technology Research Institute, Zhejiang 312000, China
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4
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Ramadan H, Al-Ashmawy M, Soliman AM, Elbediwi M, Sabeq I, Yousef M, Algammal AM, Hiott LM, Berrang ME, Frye JG, Jackson CR. Whole-genome sequencing of Listeria innocua recovered from retail milk and dairy products in Egypt. Front Microbiol 2023; 14:1160244. [PMID: 37234542 PMCID: PMC10206011 DOI: 10.3389/fmicb.2023.1160244] [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: 02/06/2023] [Accepted: 04/14/2023] [Indexed: 05/28/2023] Open
Abstract
The similarity of the Listeria innocua genome with Listeria monocytogenes and their presence in the same niche may facilitate gene transfer between them. A better understanding of the mechanisms responsible for bacterial virulence requires an in-depth knowledge of the genetic characteristics of these bacteria. In this context, draft whole genome sequences were completed on five L. innocua isolated from milk and dairy products in Egypt. The assembled sequences were screened for antimicrobial resistance and virulence genes, plasmid replicons and multilocus sequence types (MLST); phylogenetic analysis of the sequenced isolates was also performed. The sequencing results revealed the presence of only one antimicrobial resistance gene, fosX, in the L. innocua isolates. However, the five isolates carried 13 virulence genes involved in adhesion, invasion, surface protein anchoring, peptidoglycan degradation, intracellular survival, and heat stress; all five lacked the Listeria Pathogenicity Island 1 (LIPI-1) genes. MLST assigned these five isolates into the same sequence type (ST), ST-1085; however, single nucleotide polymorphism (SNP)-based phylogenetic analysis revealed 422-1,091 SNP differences between our isolates and global lineages of L. innocua. The five isolates possessed an ATP-dependent protease (clpL) gene, which mediates heat resistance, on a rep25 type plasmids. Blast analysis of clpL-carrying plasmid contigs showed approximately 99% sequence similarity to the corresponding parts of plasmids of L. monocytogenes strains 2015TE24968 and N1-011A previously isolated from Italy and the United States, respectively. Although this plasmid has been linked to L. monocytogenes that was responsible for a serious outbreak, this is the first report of L. innocua containing clpL-carrying plasmids. Various genetic mechanisms of virulence transfer among Listeria species and other genera could raise the possibility of the evolution of virulent strains of L. innocua. Such strains could challenge processing and preservation protocols and pose health risks from dairy products. Ongoing genomic research is necessary to identify these alarming genetic changes and develop preventive and control measures.
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Affiliation(s)
- Hazem Ramadan
- Hygiene and Zoonoses Department, Faculty of Veterinary Medicine, Mansoura University, Mansoura, Egypt
- Poultry Microbiological Safety and Processing Research Unit, US National Poultry Research Center, USDA-ARS, Athens, GA, United States
| | - Maha Al-Ashmawy
- Department of Food Hygiene and Control, Faculty of Veterinary Medicine, Mansoura University, Mansoura, Egypt
| | - Ahmed M. Soliman
- Department of Microbiology and Immunology, Faculty of Pharmacy, Kafrelsheikh University, Kafr El-Sheikh, Egypt
| | - Mohammed Elbediwi
- Evolutionary Biology, Institute for Biology, Freie Universität Berlin, Berlin, Germany
- Animal Health Research Institute, Agriculture Research Center, Cairo, Egypt
| | - Islam Sabeq
- Department of Food Hygiene and Control, Faculty of Veterinary Medicine, Benha University, Tukh, Qalyubia, Egypt
| | - Mona Yousef
- Department of Food Hygiene and Control, Faculty of Veterinary Medicine, Mansoura University, Mansoura, Egypt
| | - Abdelazeem M. Algammal
- Department of Bacteriology, Immunology and Mycology, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, Egypt
| | - Lari M. Hiott
- Poultry Microbiological Safety and Processing Research Unit, US National Poultry Research Center, USDA-ARS, Athens, GA, United States
| | - Mark E. Berrang
- Poultry Microbiological Safety and Processing Research Unit, US National Poultry Research Center, USDA-ARS, Athens, GA, United States
| | - Jonathan G. Frye
- Poultry Microbiological Safety and Processing Research Unit, US National Poultry Research Center, USDA-ARS, Athens, GA, United States
| | - Charlene R. Jackson
- Poultry Microbiological Safety and Processing Research Unit, US National Poultry Research Center, USDA-ARS, Athens, GA, United States
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5
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Biodegradable fish gelatin/chitosan-based active films alter chill-stored golden pomfret (Trachinotus blochii) metabolites mainly through modulating four metabolic pathways. Food Packag Shelf Life 2023. [DOI: 10.1016/j.fpsl.2023.101046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
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6
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He Y, Xie Z, Xu Y, Guo C, Zhao X, Yang H. Effect of slightly acid electrolysed water ice on metabolite and volatilome profile of shrimp (Penaeus vannamei) during cold storage. Food Control 2023. [DOI: 10.1016/j.foodcont.2022.109421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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7
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He Y, Yeo IKX, Guo C, Kai Y, Lu Y, Yang H. Elucidating the inhibitory mechanism on polyphenol oxidase from mushroom and melanosis formation by slightly acid electrolysed water. Food Chem 2023; 404:134580. [DOI: 10.1016/j.foodchem.2022.134580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 09/13/2022] [Accepted: 10/08/2022] [Indexed: 11/06/2022]
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8
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Zhao L, Chen MH, Bi X, Du J. Physicochemical properties, structural characteristics and in vitro digestion of brown rice–pea protein isolate blend treated by microbial transglutaminase. Food Hydrocoll 2023. [DOI: 10.1016/j.foodhyd.2023.108673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
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9
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Antimicrobial Activity of Sertraline on Listeria monocytogenes. Int J Mol Sci 2023; 24:ijms24054678. [PMID: 36902108 PMCID: PMC10002541 DOI: 10.3390/ijms24054678] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 01/31/2023] [Accepted: 02/22/2023] [Indexed: 03/04/2023] Open
Abstract
We explored the antimicrobial activity of sertraline on Listeria monocytogenes and further investigated the effects of sertraline on biofilm formation and the virulence gene expression of L. monocytogenes. The minimum inhibitory concentration and minimum bactericidal concentration for sertraline against L. monocytogenes were in the range of 16-32 μg/mL and 64 μg/mL, respectively. Sertraline-dependent damage of the cell membrane and a decrease in intracellular ATP and pHin in L. monocytogenes were observed. In addition, sertraline reduced the biofilm formation efficiency of the L. monocytogenes strains. Importantly, low concentrations (0.1 μg/mL and 1 μg/mL) of sertraline significantly down-regulated the expression levels of various L. monocytogens virulence genes (prfA, actA, degU, flaA, sigB, ltrC and sufS). These results collectively suggest a role of sertraline for the control of L. monocytogenes in the food industry.
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10
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Xanthan gum modified fish gelatin and binary culture modulates the metabolism of probiotics in fermented milk mainly via amino acid metabolism pathways. Food Res Int 2022; 161:111844. [DOI: 10.1016/j.foodres.2022.111844] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 08/16/2022] [Accepted: 08/21/2022] [Indexed: 02/07/2023]
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11
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Wang Y, Yang H. Metabolomics elucidating the effect of water activity on the thermal resistance of Salmonella in wheat flour. Food Res Int 2022; 162:112203. [DOI: 10.1016/j.foodres.2022.112203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Revised: 11/12/2022] [Accepted: 11/15/2022] [Indexed: 11/21/2022]
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12
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Dual-Species Biofilms Formed by Escherichia coli and Salmonella Enhance Chlorine Tolerance. Appl Environ Microbiol 2022; 88:e0148222. [PMID: 36300924 PMCID: PMC9680634 DOI: 10.1128/aem.01482-22] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Outbreaks of
Escherichia coli
and
Salmonella
in food might be associated with the cross-contamination of biofilms on food-contact surfaces. The knowledge of the sanitization of mono-species biofilm on the food-contact surface is well established, while mixed-species biofilm occurs more naturally, which could profoundly affect the efficacy of sanitizer.
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13
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Wang XY, Xie J. Response to Cold Adaption in Acinetobacter johnsonii XY27 from Spoiled Bigeye Tuna ( Thunnus obesus): Membrane Protein Composition and Protein Biomarker Identification by Proteomics. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:10000-10010. [PMID: 35919963 DOI: 10.1021/acs.jafc.2c03303] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Acinetobacter johnsonii is one of the major food-spoilage bacteria and can survive under cold stress. In this study, the membrane composition, membrane permeability, and energy transduction of A. johnsonii XY27 cultured at 4 and 30 °C were examined comparatively by flow cytometry combined with liquid chromatography-mass spectrometry and gas chromatography-mass spectrometry. The Na+/K+ATPase activity, alkaline phosphatase and ATPase activity, fluorescence intensity, and cell viability in A. johnsonii XY27 increased with the decrease in cultivation temperature. The polyunsaturated fatty acid and monounsaturated fatty acids have a higher content in A. johnsonii XY27 cultured at 4 °C compared to that cultured at 30 °C, in which the contents of methyl palmitoleate, methyl myristoleate, and methyl oleate increased dramatically with decreasing temperature. Comparative proteomics analysis revealed that 31 proteins were downregulated and 4 proteins were upregulated, in which catalase-peroxidase 1 and cold shock proteins as biomarker proteins could effectively control A. johnsonii during cold adaptation.
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Affiliation(s)
- Xin-Yun Wang
- Shanghai Engineering Research Center of Aquatic Product Processing & Preservation, Shanghai Ocean University, Shanghai 201306, China
- Shanghai Professional Technology Service Platform on Cold Chain Equipment Performance and Energy Saving Evaluation, Shanghai Ocean University, Shanghai 201306, China
- National Experimental Teaching Demonstration Center for Food Science and Engineering Shanghai Ocean University, Shanghai Ocean University, Shanghai 201306, China
- College of Food Science & Technology, Shanghai Ocean University, Shanghai 201306, China
| | - Jing Xie
- Shanghai Engineering Research Center of Aquatic Product Processing & Preservation, Shanghai Ocean University, Shanghai 201306, China
- Shanghai Professional Technology Service Platform on Cold Chain Equipment Performance and Energy Saving Evaluation, Shanghai Ocean University, Shanghai 201306, China
- National Experimental Teaching Demonstration Center for Food Science and Engineering Shanghai Ocean University, Shanghai Ocean University, Shanghai 201306, China
- College of Food Science & Technology, Shanghai Ocean University, Shanghai 201306, China
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14
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Yan Q, Mei J, Li D, Xie J. Application of sonodynamic technology and sonosensitizers in food sterilization: a review of developments, trends and challenges. Crit Rev Food Sci Nutr 2022; 64:740-759. [PMID: 35950483 DOI: 10.1080/10408398.2022.2108368] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Food safety and food waste have always been hot topics of discussion in recent years. However, the infection of human pathogenic bacteria and the waste of food resources caused by microbial-contaminated food remains common. Although traditional sterilization technology has been very mature, it causes changes in food flavor and excessive energy consumption to a certain extent. Moreover, the widespread bacterial resistance has also sounded a warning for researchers and finding a new alternative to antibiotics is urgently needed. The application of sonodynamic sterilization technology in medical treatment has aroused the interest of researchers. It provides ideas for new food sterilization technology. As a new non-thermal sterilization technology, sonodynamic sterilization technology has strong penetration, safety, less residue and by-products, and will less change the quality of the food itself. Therefore, sonodynamic sterilization technology has great potential applied in food sterilization technology. This review describes the concept of sonodynamic sterilization technology, the sterilization mechanism of sonodynamic sterilization and the inactivation mechanism of various pathogens, the classification and application of sonosensitizers, and the ultrasonic technology in sonodynamic sterilization in the application over the recent years. It provides a scientific reference for the application of sonodynamic sterilization technology in the field of food sterilization.
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Affiliation(s)
- Qi Yan
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
| | - Jun Mei
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
| | - Dapeng Li
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
| | - Jing Xie
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
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15
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Yu X, Zou Y, Zhang Z, Wei T, Ye Z, Yuk HG, Zheng Q. Recent advances in antimicrobial applications of curcumin-mediated photodynamic inactivation in foods. Food Control 2022. [DOI: 10.1016/j.foodcont.2022.108986] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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16
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Li L, Zhou P, Wang Y, Pan Y, Chen M, Tian Y, Zhou H, Yang B, Meng H, Zheng J. Antimicrobial activity of cyanidin-3-O-glucoside-lauric acid ester against Staphylococcus aureus and Escherichia coli. Food Chem 2022; 383:132410. [PMID: 35182879 DOI: 10.1016/j.foodchem.2022.132410] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 01/16/2022] [Accepted: 02/07/2022] [Indexed: 11/18/2022]
Abstract
Enzymatic acylation of anthocyanin with fatty acid improves its lipophilic solubility and application potential. Nevertheless, evaluation of functional properties of product is premise for application. This study investigated the antimicrobial potential and the underlying mechanisms of an acylated anthocyanin, namely, cyanidin-3-O-glucoside-lauric acid ester (C3G-LA), to provide guidelines for its application. C3G-LA exhibited outstanding antibacterial activity against Staphylococcus aureus [minimum inhibitory concentration (MIC) = 0.3125 mg/mL] and modest activity against Escherichia coli (MIC = 5 mg/mL). Moreover, C3G-LA manifested bactericide ability against S. aureus at 0.625 mg/mL. Decreases in membrane integrity (by 96% and 92% at MIC in S. aureus and E. coli, respectively), intracellular ATP concentration (by 96% and 92%) and intracellular pH (by 11% and 9%) and changes in cellular morphology altogether indicated the dysfunction of cell membrane under C3G-LA treatment. These findings demonstrated that C3G-LA could be adopted as an alternative food preservative against foodborne pathogens.
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Affiliation(s)
- Lili Li
- Institute of Food Safety and Nutrition, Jinan University, Guangzhou 510632, Guangdong, China
| | - Ping Zhou
- Department of Food Science and Engineering, Jinan University, Guangzhou 510632, Guangdong, China; InnoStar Bio-Tech Nantong Site, Nantong 226133, Jiangsu, China
| | - Yidi Wang
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, Guangdong, China
| | - Ying Pan
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Jinan University, Guangzhou 510632, Guangdong, China
| | - Min Chen
- Department of Food Science and Engineering, Jinan University, Guangzhou 510632, Guangdong, China
| | - Ye Tian
- Food Chemistry and Food Development Unit, Department of Life Technologies, University of Turku, Turku FI-20014, Finland
| | - Hua Zhou
- Department of Food Science and Engineering, Jinan University, Guangzhou 510632, Guangdong, China
| | - Baoru Yang
- Food Chemistry and Food Development Unit, Department of Life Technologies, University of Turku, Turku FI-20014, Finland
| | - Hecheng Meng
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, Guangdong, China
| | - Jie Zheng
- Department of Food Science and Engineering, Jinan University, Guangzhou 510632, Guangdong, China; Zhongshan Hongli Health Food Industry Research Institute Co., Ltd, Zhongshan 528400, Guangdong, China.
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17
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Liu CY, Tsai GJ, Pan CL, Shang KC, Tseng HJ, Chai HJ, Hsiao HI. Dual bacterial strains TTI for monitoring fish quality in food cold chain. J Food Sci 2022; 87:3562-3572. [PMID: 35789483 DOI: 10.1111/1750-3841.16174] [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: 11/21/2021] [Revised: 04/12/2022] [Accepted: 04/13/2022] [Indexed: 12/01/2022]
Abstract
Most microbial time-temperature indicators (TTIs) considered only one spoilage strain. This research compared single and dual spoilage strains-based microbial TTI for quality changes of chilled grouper fish (Epinephelus fuscoguttatus x E. lanceolatus) fillet products during distribution. The next-generation sequencing (NGS) and traditional plate count approach showed that Pseudomonas fragi and Vibrio parahaemolyticus were specific spoilage bacteria at 7 and 15°C. A dual-strain TTI response provides more accurate results than a single-strain TTI and provides an irreversible color change from yellow to reddish-brown, showing levels of fish freshness. The microbial TTI comprises fish spoilage bacteria strains with 3 log CFU/ml, a nutrient broth supplemented with 2% NaCl as a medium, and phenol red with 0.25 mg/ml as a pH indicator. Overall, this study points to the applicability of a dual-strain microbial TTI as a valuable tool for monitoring fish quality changes during cold chain break condition.
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Affiliation(s)
- Chia-Yu Liu
- Department of Food Science, National Taiwan Ocean University, Keelung, Taiwan (ROC)
| | - Guo-Jane Tsai
- Department of Food Science, National Taiwan Ocean University, Keelung, Taiwan (ROC)
| | - Chorng-Liang Pan
- Department of Food Science, National Taiwan Ocean University, Keelung, Taiwan (ROC)
| | - Kuo-Chung Shang
- Department of Transportation Science, National Taiwan Ocean University, Keelung, Taiwan
| | - Hsiang-Jung Tseng
- Research and Development Department, Plastic Industry Development Center, Taichung, Taiwan
| | - Huey-Jine Chai
- Seafood Technology Division, Fisheries Research Institute, Council of Agriculture, Keelung, Taiwan
| | - Hsin-I Hsiao
- Department of Food Science, National Taiwan Ocean University, Keelung, Taiwan (ROC)
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18
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Wang Y, Gao X, Yang H. Integrated metabolomics of "big six" Escherichia coli on pea sprouts to organic acid treatments. Food Res Int 2022; 157:111354. [PMID: 35761617 DOI: 10.1016/j.foodres.2022.111354] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 04/27/2022] [Accepted: 05/06/2022] [Indexed: 11/17/2022]
Abstract
Naturally occurring organic acids (OAs) have demonstrated satisfactory effects in inhibiting common pathogens on fresh produce; however, their effectiveness on "big six" Escherichia coli serotypes, comprised of E. coli O26:H11, O45:H2, O103:H11, O111, O121:H19 and O145, remained unaddressed. Regarding this, using nuclear magnetic resonance (NMR) spectroscopy and ultra-high performance liquid chromatography-mass spectrometry (UPLC-MS), the sanitising efficacy and the underlying antimicrobial mechanisms of 10-min treatments with 0.2 mol/L ascorbic acid (AA), citric acid (CA) and malic acid (MA) against the "big six" strains on pea sprouts were thoroughly investigated in this study. Despite the varying antimicrobial efficacy (AA: 0.12-0.99, CA: 0.36-1.72, MA: 0.75-3.28 log CFU/g reductions), the three OAs induced consistent metabolic changes in the E. coli strains, particularly in the metabolism of membrane lipids, nucleotide derivatives and amino acids. Comparing all strains, the most OA-resistant strain, O26 (0.36-1.12 log CFU/g reductions), had the largest total amino acids accumulated to resist osmotic stress; its ulteriorly suppressed cell activity further strengthened its endurance. In contrast, the lowest OA-resistance of O121 (0.99-3.28 log CFU/g reductions) might be explained by the depletion of putrescine, an oxidative stress regulator. Overall, the study sheds light on the effectiveness of a dual-platform metabolomics investigation in elucidating the metabolic responses of "big six" E. coli to OAs. The manifested antimicrobial effects of OAs, especially MA, together with the underlying metabolic perturbations detected in the "big six" strains, provided scientific basis for applying OA treatments to future fresh produce sanitisation.
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Affiliation(s)
- Yue Wang
- Department of Food Science and Technology, National University of Singapore, Singapore 117542, Singapore; National University of Singapore (Suzhou) Research Institute, 377 Lin Quan Street, Suzhou Industrial Park, Suzhou, Jiangsu 215123, PR China
| | - Xianfu Gao
- Shanghai Profleader Biotech Co., Ltd, Jiading District, Shanghai 201805, PR China
| | - Hongshun Yang
- Department of Food Science and Technology, National University of Singapore, Singapore 117542, Singapore; National University of Singapore (Suzhou) Research Institute, 377 Lin Quan Street, Suzhou Industrial Park, Suzhou, Jiangsu 215123, PR China.
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NMR-based metabolomic investigation on antimicrobial mechanism of Salmonella on cucumber slices treated with organic acids. Food Control 2022. [DOI: 10.1016/j.foodcont.2022.108973] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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Lin Z, Chen T, Zhou L, Yang H. Effect of chlorine sanitizer on metabolic responses of Escherichia coli biofilms "big six" during cross-contamination from abiotic surface to sponge cake. Food Res Int 2022; 157:111361. [PMID: 35761623 DOI: 10.1016/j.foodres.2022.111361] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 04/19/2022] [Accepted: 05/10/2022] [Indexed: 11/04/2022]
Abstract
The effect of chlorine on Escherichia coli biofilm O157:H7 are well established; however, the effect on biofilm adhesion to food as well as the six emerging E. coli serotypes ("big six") have not been fully understood. Chlorine sanitization with 1-min 100 mg/L was applied against seven pathogenic E. coli (O111, O121:H19, O45:H2, O26:H11, O103:H11, O145, and O157:H7) biofilms on high-density polyethylene (HDPE) and stainless steel (SS) coupons, respectively. Using sponge cake as a food model, the adhesion behavior was evaluated by comparison of bacteria transfer rate before and after treatment. Besides, the metabolic profiles of biofilms were analyzed by nuclear magnetic resonance (NMR) spectrometer. A significant decrease in transfer rate (79% decline on SS and 33% decline on HDPE) was recorded as well as the distinctive pattern between SS and HDPE coupons was also noticed, with a low population (6-7 log CFU/coupon) attached and low survivals (0-3 log CFU/coupon) upon chlorine on SS, while high population (7-8 log CFU/coupon) attached and high survivals (5-7 log CFU/coupon) on HDPE. Moreover, O121:H19 and O26:H11 demonstrated the highest resistance to chlorine with the least metabolic status and pathways affected. O103:H11, O145, and O111 followed similar metabolic patterns on both surfaces. Distinct metabolic patterns were found in O45:H2 and O157:H7, where the former had more affected metabolic status and pathways on SS but less on HDPE, whereas the latter showed an opposite trend. Overall, a potential contamination source of STEC infection in flour products was demonstrated and metabolic changes induced by chlorine were revealed by NMR-based metabolomics, which provides insights to avoid "big six" biofilms contamination in food.
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Affiliation(s)
- Zejia Lin
- Department of Food Science & Technology, National University of Singapore, Singapore 117542, Singapore; National University of Singapore (Suzhou) Research Institute, 377 Lin Quan Street, Suzhou Industrial Park, Suzhou, Jiangsu 215123, PR China
| | - Tong Chen
- Department of Food Science & Technology, National University of Singapore, Singapore 117542, Singapore; National University of Singapore (Suzhou) Research Institute, 377 Lin Quan Street, Suzhou Industrial Park, Suzhou, Jiangsu 215123, PR China
| | - Lehao Zhou
- Department of Food Science & Technology, National University of Singapore, Singapore 117542, Singapore; National University of Singapore (Suzhou) Research Institute, 377 Lin Quan Street, Suzhou Industrial Park, Suzhou, Jiangsu 215123, PR China
| | - Hongshun Yang
- Department of Food Science & Technology, National University of Singapore, Singapore 117542, Singapore; National University of Singapore (Suzhou) Research Institute, 377 Lin Quan Street, Suzhou Industrial Park, Suzhou, Jiangsu 215123, PR China.
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He Y, Xie Z, Xu Y, Zhao X, Zhao L, Yang H. Preservative effect of slightly acid electrolysed water ice generated by the developed sanitising unit on shrimp (Penaeus vannamei). Food Control 2022. [DOI: 10.1016/j.foodcont.2022.108876] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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22
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Stearns R, Xue J, Freshour N, Matak K, Luo Y, Shen C. The Efficacy of Conventional Spray, Electrostatic Spray, and Dip with a Combination of Hydrogen Peroxide and Peroxyacetic Acid To Inactivate Listeria monocytogenes on Apples. J Food Prot 2022; 85:828-834. [PMID: 35146513 DOI: 10.4315/jfp-21-448] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 02/08/2022] [Indexed: 11/11/2022]
Abstract
ABSTRACT This study aimed to evaluate the efficacy of a hydrogen peroxide (H2O2) and peroxyacetic acid (PAA) mixer delivered by conventional garden spray (GS), electrostatic spray (ES), and dip methods to inactivate Listeria monocytogenes on apples. Organic Honeycrisp, Fuji, and Pink Lady apples were dip inoculated with L. monocytogenes (two strains, serotype 1/2b), which were then kept untreated (control), sprayed with water only, or treated with the H2O2-PAA mixer (0.0064, 0.1, 0.25, and 0.50%) for 20 s via GS, ES, or dip, followed by draining (for 2 min) on aluminum foil. Surviving bacteria were recovered on modified Oxford agar. Atomic force microscopy was used to detect the structural changes of inactivation of L. monocytogenes in broth medium by the H2O2-PAA mixer solution. Data (two replicates, with six samples per replicate) were analyzed using the mixed model procedure of SAS (P = 0.05). Initial counts of L. monocytogenes on untreated apples were 6.80 to 6.90 log CFU per apple. The dip method was the most effective treatment (P < 0.05) for pathogen reductions (2.31 to 2.41 log CFU per apple), followed by GS (1.44 to 1.70 log CFU per apple) and then ES (0.84 to 1.20 log CFU per apple). Reductions of L. monocytogenes were greatest (P < 0.05) when apples were treated with H2O2-PAA mixer -0.25 and -0.50%. Atomic force microscopy analyses indicated that inactivation of L. monocytogenes cells in H2O2-PAA mixer solutions resulted from disruption of the outer membrane. The H2O2-PAA mixer-treated cells had increased width and height and decreased roughness compared with the untreated cells. Results suggested that applying a H2O2-PAA mixer by dip or GS methods is better for pathogen reduction than ES on apples. HIGHLIGHTS
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Affiliation(s)
- Rebecca Stearns
- Division of Animal and Nutritional Sciences, West Virginia University, Morgantown, West Virginia 26506
| | - Jingyi Xue
- Department of Nutritional Sciences, University of Connecticut, Storrs, Connecticut 06269, USA
| | - Nettie Freshour
- Division of Animal and Nutritional Sciences, West Virginia University, Morgantown, West Virginia 26506
| | - Kristen Matak
- Division of Animal and Nutritional Sciences, West Virginia University, Morgantown, West Virginia 26506
| | - Yangchao Luo
- Department of Nutritional Sciences, University of Connecticut, Storrs, Connecticut 06269, USA
| | - Cangliang Shen
- Division of Animal and Nutritional Sciences, West Virginia University, Morgantown, West Virginia 26506
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Metabolic Responses of "Big Six" Escherichia coli in Wheat Flour to Thermal Treatment Revealed by Nuclear Magnetic Resonance Spectroscopy. Appl Environ Microbiol 2022; 88:e0009822. [PMID: 35285244 DOI: 10.1128/aem.00098-22] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Escherichia coli outbreaks linked to wheat flour consumption have kept emerging in recent years, which necessitated an antimicrobial step being incorporated into the flour production process. The objectives of this in vivo study were to holistically evaluate the sanitizing efficacy of thermal treatment at 60 and 70°C against the "big six" E. coli strains (O26:H11, O45:H2, O103:H11, O111, O121:H19, and O145) in wheat flour and to assess the strain-specific metabolic responses using nuclear magnetic resonance (NMR) spectroscopy. The 70°C treatment temperature indiscriminatingly inactivated all strains by over 4.3-log CFU/g within 20 min, suggesting the high sanitization effectiveness of this treatment temperature, whereas the treatment at 60°C inactivated the strains to various degrees during the 1-h process. The most resistant strains at 60°C, O26 and O45, were characterized by amino acid and sugar depletion, and their high resistance was attributed to the dual effects of activated heat shock protein (HSP) synthesis and promoted glycolysis. O121 also demonstrated these metabolic changes, yet its thermal resistance was largely impaired by the weakened membrane structure and diminished osmotic protection due to phosphorylcholine exhaustion. In contrast, O111, O145, and O103 presented a substantial elevation of metabolites after stress at 60°C; their moderate thermal resistance was mainly explained by the accumulation of amino acids as osmolytes. Overall, the study enhanced our understanding of the metabolic responses of big six E. coli to heat stress and provided a model for conducting NMR-based metabolomic studies in powdered food matrices. IMPORTANCE "Big six" Escherichia coli strains have caused several outbreaks linked to wheat flour consumption in the last decade, revealing the vital importance of adopting an antimicrobial treatment during the flour production process. Therefore, the present study was carried out to evaluate the efficacy of a typical sanitizing approach, thermal treatment, against the big six strains in wheat flour along with the underlying antimicrobial mechanisms. Findings showed that thermal treatment at 60 and 70°C could markedly mitigate the loads of all strains in wheat flour. Moreover, activated heat shock protein synthesis combined with expedited glycolysis and enhanced osmotic protection were identified as two major metabolic alteration patterns in the E. coli strains to cope with the heat stress. With the responses of big six in wheat flour to thermal treatment elucidated, scientific basis for incorporating a thermal inactivation step in wheat flour production was provided.
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Zhao L, Poh CN, Wu J, Zhao X, He Y, Yang H. Effects of electrolysed water combined with ultrasound on inactivation kinetics and metabolite profiles of Escherichia coli biofilms on food contact surface. INNOV FOOD SCI EMERG 2022. [DOI: 10.1016/j.ifset.2022.102917] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Kobayashi F, Aoki H, Kamagata J, Odake S. Effect of electrolyzed water and carbon dioxide microbubbles on removal of diazinon and diazoxon. J FOOD PROCESS ENG 2022. [DOI: 10.1111/jfpe.13963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Fumiyuki Kobayashi
- Faculty of Applied Life Science Nippon Veterinary and Life Science University Tokyo Japan
| | - Hitoshi Aoki
- Research & Development Department Nichirei Foods Inc. Chiba Japan
| | - Junichi Kamagata
- Research & Development Department Nichirei Foods Inc. Chiba Japan
| | - Sachiko Odake
- Faculty of Applied Life Science Nippon Veterinary and Life Science University Tokyo Japan
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Research Trends on the Application of Electrolyzed Water in Food Preservation and Sanitation. Processes (Basel) 2021. [DOI: 10.3390/pr9122240] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Electrolyzed water (EW) has been proposed as a novel promising sanitizer and cleaner in recent years. It is an effective antimicrobial and antibiofilm agent that has several advantages of being on the spot, environmentally friendly, cheap, and safe for human beings. Therefore, EW has been applied widely in various fields, including agriculture, food sanitation, livestock management, medical disinfection, clinical, and other fields using antibacterial technology. Currently, EW has potential significance for high-risk settings in hospitals and other clinical facilities. The research focus has been shifted toward the application of slightly acidic EW as more effective with some supplemental chemical and physical treatment methods such as ultraviolet radiations and ultrasound. This review article summarizes the possible mechanism of action and highlights the latest research studies in antimicrobial applications.
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Jia Z, Xu Y, Wang J, Song R. Antioxidant activity and degradation kinetics of astaxanthin extracted from Penaeus sinensis (Solenocera crassicornis) byproducts under pasteurization treatment. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.112336] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Zhu J, Liu Z, Chen H, Liu H, Bao X, Li C, Chen L, Yu L. Designing and developing biodegradable intelligent package used for monitoring spoilage seafood using aggregation-induced emission indicator. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.112135] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Shen C, Rao J, Wu Q, Wu D, Chen K. The effect of indirect plasma-processed air pretreatment on the microbial loads, decay, and metabolites of Chinese bayberries. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111998] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Zhao L, Jia L, Ma B, Zhong W, Huang Y, Duan F. Heat-resistant bacteria contamination investigation in Chinese soybean curd industrial processing using high-throughput gene sequencing and MALDI-TOF-MS. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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