1
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Liu YL, Chen XW, Tian SQ, Tan XH, Peng B. Edwardsiella tarda Attenuates Virulence upon Oxytetracycline Resistance. J Proteome Res 2024; 23:2576-2586. [PMID: 38860290 DOI: 10.1021/acs.jproteome.4c00303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2024]
Abstract
The relationship between antibiotic resistance and bacterial virulence has not yet been fully explored. Here, we use Edwardsiella tarda as the research model to investigate the proteomic change upon oxytetracycline resistance (LTB4-ROTC). Compared to oxytetracycline-sensitive E. tarda (LTB4-S), LTB4-ROTC has 234 differentially expressed proteins, of which the abundance of 84 proteins is downregulated and 15 proteins are enriched to the Type III secretion system, Type VI secretion system, and flagellum pathways. Functional analysis confirms virulent phenotypes, including autoaggregation, biofilm formation, hemolysis, swimming, and swarming, are impaired in LTB4-ROTC. Furthermore, the in vivo bacterial challenge in both tilapia and zebrafish infection models suggests that the virulence of LTB4-ROTC is attenuated. Analysis of immune gene expression shows that LTB4-ROTC induces a stronger immune response in the spleen but a weaker response in the head kidney than that induced by LTB4-S, suggesting it's a potential vaccine candidate. Zebrafish and tilapia were challenged with a sublethal dose of LTB4-ROTC as a live vaccine followed by LTB4-S challenge. The relative percentage of survival of zebrafish is 60% and that of tilapia is 75% after vaccination. Thus, our study suggests that bacteria that acquire antibiotic resistance may attenuate virulence, which can be explored as a potential live vaccine to tackle bacterial infection in aquaculture.
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Affiliation(s)
- Ying-Li Liu
- State Key Laboratory of Biocontrol, Guangdong Key Laboratory of Pharmaceutical Functional Genes, School of Life Sciences, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-sen University, Guangzhou 510275, People's Republic of China
| | - Xuan-Wei Chen
- State Key Laboratory of Biocontrol, Guangdong Key Laboratory of Pharmaceutical Functional Genes, School of Life Sciences, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-sen University, Guangzhou 510275, People's Republic of China
| | - Si-Qi Tian
- State Key Laboratory of Biocontrol, Guangdong Key Laboratory of Pharmaceutical Functional Genes, School of Life Sciences, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-sen University, Guangzhou 510275, People's Republic of China
| | - Xiao-Hua Tan
- State Key Laboratory of Biocontrol, Guangdong Key Laboratory of Pharmaceutical Functional Genes, School of Life Sciences, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-sen University, Guangzhou 510275, People's Republic of China
| | - Bo Peng
- State Key Laboratory of Biocontrol, Guangdong Key Laboratory of Pharmaceutical Functional Genes, School of Life Sciences, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-sen University, Guangzhou 510275, People's Republic of China
- Laboratory for Marine Biology and Biotechnology, Qingdao Marine Science and Technology Center, Qingdao 266071, China
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2
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Wei X, Hu Y, Sun C, Wu S. Characterization of a Novel Antimicrobial Peptide Bacipeptin against Foodborne Pathogens. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:5283-5292. [PMID: 38429098 DOI: 10.1021/acs.jafc.4c00573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/03/2024]
Abstract
The increasing emergence of multidrug-resistant pathogens and development of biopreservatives in food industries has increased the demand of novel and safe antimicrobial agents. In this study, a marine bacterial strain Bacillus licheniformis M1 was isolated and exhibited obvious antimicrobial activities against foodborne pathogens, especially against methicillin-resistant Staphylococcus aureus. The antimicrobial agent was purified and identified as a novel antimicrobial peptide, which was designated as bacipeptin, and the corresponding mechanism was further investigated by electron microscopy observation and transcriptomic analysis with biochemical validation. The results showed that bacipeptin could reduce the virulence of methicillin-resistant Staphylococcus aureus and exerted its antimicrobial activity by interfering with histidine metabolism, inducing the accumulation of reactive oxygen species and down-regulating genes related to Na+/H+ antiporter and the cell wall, thus causing damage to the cell wall and membrane. Overall, our study provides a novel natural product against foodborne pathogens and discloses the corresponding action mechanism.
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Affiliation(s)
- Xiaotong Wei
- College of Life Sciences, Qingdao University, Qingdao 266071, China
| | - Yuanyuan Hu
- College of Life Sciences, Qingdao University, Qingdao 266071, China
| | - Chaomin Sun
- CAS Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China
- Center of Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China
| | - Shimei Wu
- College of Life Sciences, Qingdao University, Qingdao 266071, China
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3
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Sun Y, Wang J, Li D, Cheng F. The Recent Progress of the Cellulose-Based Antibacterial Hydrogel. Gels 2024; 10:109. [PMID: 38391439 PMCID: PMC10887981 DOI: 10.3390/gels10020109] [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: 12/15/2023] [Revised: 01/26/2024] [Accepted: 01/26/2024] [Indexed: 02/24/2024] Open
Abstract
Cellulose-based antibacterial hydrogel has good biocompatibility, antibacterial performance, biodegradability, and other characteristics. It can be very compatible with human tissues and degradation, while its good water absorption and moisturizing properties can effectively absorb wound exudates, keep the wound moist, and promote wound healing. In this paper, the structural properties, and physical and chemical cross-linking preparation methods of cellulose-based antibacterial hydrogels were discussed in detail, and the application of cellulose-based hydrogels in the antibacterial field was deeply studied. In general, cellulose-based antibacterial hydrogels, as a new type of biomaterial, have shown good potential in antimicrobial properties and have been widely used. However, there are still some challenges, such as optimizing the preparation process and performance parameters, improving the antibacterial and physical properties, broadening the application range, and evaluating safety. However, with the deepening of research and technological progress, it is believed that cellulose-based antibacterial hydrogels will be applied and developed in more fields in the future.
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Affiliation(s)
- Ying Sun
- College of Light Industry and Textile, Qiqihar University, Qiqihar 161006, China
- Cold Area Hemp and Products Engineering Research Center of Ministry of Education, Qiqihar 161006, China
| | - Jiayi Wang
- College of Light Industry and Textile, Qiqihar University, Qiqihar 161006, China
| | - Duanxin Li
- College of Light Industry and Textile, Qiqihar University, Qiqihar 161006, China
- Cold Area Hemp and Products Engineering Research Center of Ministry of Education, Qiqihar 161006, China
| | - Feng Cheng
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
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4
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Han Q, Liu R, Wang H, Zhang R, Liu H, Li J, Bao J. Gut Microbiota-Derived 5-Hydroxyindoleacetic Acid Alleviates Diarrhea in Piglets via the Aryl Hydrocarbon Receptor Pathway. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:15132-15144. [PMID: 37797200 DOI: 10.1021/acs.jafc.3c04658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/07/2023]
Abstract
With the improvement in sow prolificacy, formula feeding has been increasingly used in the pig industry. Diarrhea remains a serious health concern in formula-fed (FF) piglets. Fecal microbiota transplantation (FMT) is an efficacious strategy to reshape gut microbiota and the metabolic profile for treating diarrhea. This study aims to investigate whether FMT from breast-fed piglets could alleviate diarrhea in FF piglets. The piglets were randomly assigned to the control (CON) group, FF group, and FMT group. Our results showed that FF piglets exhibited a higher diarrhea incidence, damaged colonic morphology, and disrupted barrier function. In contrast, FMT treatment normalized the morphology and barrier function. FMT suppressed the JNK/MAPK pathway and production of proinflammatory cytokines. Additionally, FF piglets had a lower abundance of the beneficial bacterial genus Bifidobacterium compared to CON piglets. Following FMT administration, Bifidobacterium was restored. Meanwhile, 5-HIAA, a metabolite of tryptophan, and AHR-responsive CYP1A1 and CYP1B1 were upregulated. Importantly, integrated multiomics analysis revealed a strong positive correlation between Bifidobacterium and 5-HIAA. In vitro, 5-HIAA supplementation reversed the LPS-induced disruption of tight junctions and production of proinflammatory cytokines in IPEC-J2 cells. In conclusion, FMT reduced diarrhea incidence and improved growth performance. The alleviative effect of FMT on diarrhea was associated with Bifidobacterium and 5-HIAA.
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Affiliation(s)
- Qi Han
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, P. R. China
- College of Animal Science and Technology, Southwest University, Chongqing 400715, P. R. China
| | - Runze Liu
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Haowen Wang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Runxiang Zhang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Honggui Liu
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, P. R. China
- Key Laboratory of Swine Facilities Engineering, Ministry of Agriculture and Rural Affairs, Harbin 150030, P. R. China
| | - Jianhong Li
- College of Life Science, Northeast Agricultural University, Harbin 150030, P. R. China
| | - Jun Bao
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, P. R. China
- Key Laboratory of Swine Facilities Engineering, Ministry of Agriculture and Rural Affairs, Harbin 150030, P. R. China
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5
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Pang X, Hu X, Du X, Lv C, Yuk HG. Biofilm formation in food processing plants and novel control strategies to combat resistant biofilms: the case of Salmonella spp. Food Sci Biotechnol 2023; 32:1703-1718. [PMID: 37780596 PMCID: PMC10533767 DOI: 10.1007/s10068-023-01349-3] [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: 12/25/2022] [Revised: 04/27/2023] [Accepted: 05/17/2023] [Indexed: 10/03/2023] Open
Abstract
Salmonella is one of the pathogens that cause many foodborne outbreaks throughout the world, representing an important global public health problem. Salmonella strains with biofilm-forming abilities have been frequently isolated from different food processing plants, especially in poultry industry. Biofilm formation of Salmonella on various surfaces can increase their viability, contributing to their persistence in food processing environments and cross-contamination of food products. In recent years, increasing concerns arise about the antimicrobial resistant and disinfectant tolerant Salmonella, while adaptation of Salmonella in biofilms to disinfectants exacerbate this problem. Facing difficulties to inhibit or remove Salmonella biofilms in food industry, eco-friendly and effective strategies based on chemical, biotechnological and physical methods are in urgent need. This review discusses biofilm formation of Salmonella in food industries, with emphasis on the current available knowledge related to antimicrobial resistance, together with an overview of promising antibiofilm strategies for controlling Salmonella in food production environments.
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Affiliation(s)
- Xinyi Pang
- College of Food Science and Engineering , Nanjing University of Finance and Economics , Nanjing, 210023 Jiangsu Province China
| | - Xin Hu
- College of Food Science and Engineering , Nanjing University of Finance and Economics , Nanjing, 210023 Jiangsu Province China
| | - Xueying Du
- College of Food Science and Engineering , Nanjing University of Finance and Economics , Nanjing, 210023 Jiangsu Province China
| | - Chenglong Lv
- College of Food Science and Engineering , Nanjing University of Finance and Economics , Nanjing, 210023 Jiangsu Province China
| | - Hyun-Gyun Yuk
- Department of Food Science and Technology, National University of Transportation, 61 Daehak-ro Jeungpyeong-gun, Chungbuk, 27909 Republic of Korea
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6
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Tang Y, Xu H, Wang X, Dong S, Guo L, Zhang S, Yang X, Liu C, Jiang X, Kan M, Wu S, Zhang J, Xu C. Advances in preparation and application of antibacterial hydrogels. J Nanobiotechnology 2023; 21:300. [PMID: 37633883 PMCID: PMC10463510 DOI: 10.1186/s12951-023-02025-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Accepted: 07/24/2023] [Indexed: 08/28/2023] Open
Abstract
Bacterial infections, especially those caused by drug-resistant bacteria, have seriously threatened human life and health. There is urgent to develop new antibacterial agents to reduce the problem of antibiotics. Biomedical materials with good antimicrobial properties have been widely used in antibacterial applications. Among them, hydrogels have become the focus of research in the field of biomedical materials due to their unique three-dimensional network structure, high hydrophilicity, and good biocompatibility. In this review, the latest research progresses about hydrogels in recent years were summarized, mainly including the preparation methods of hydrogels and their antibacterial applications. According to their different antibacterial mechanisms, several representative antibacterial hydrogels were introduced, such as antibiotics loaded hydrogels, antibiotic-free hydrogels including metal-based hydrogels, antibacterial peptide and antibacterial polymers, stimuli-responsive smart hydrogels, and light-mediated hydrogels. In addition, we also discussed the applications and challenges of antibacterial hydrogels in biomedicine, which are expected to provide new directions and ideas for the application of hydrogels in clinical antibacterial therapy.
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Affiliation(s)
- Yixin Tang
- Department of Biochemistry, College of Basic Medical Sciences, Jilin University, Changchun, 130021 Jilin China
| | - Huiqing Xu
- Department of Biochemistry, College of Basic Medical Sciences, Jilin University, Changchun, 130021 Jilin China
| | - Xue Wang
- Department of Biochemistry, College of Basic Medical Sciences, Jilin University, Changchun, 130021 Jilin China
| | - Shuhan Dong
- Department of Biochemistry, College of Basic Medical Sciences, Jilin University, Changchun, 130021 Jilin China
- Department of Preventive Medicine, School of Public Health, Jilin University, Changchun, 130021 Jilin China
| | - Lei Guo
- Department of Biochemistry, College of Basic Medical Sciences, Jilin University, Changchun, 130021 Jilin China
| | - Shichen Zhang
- Department of Biochemistry, College of Basic Medical Sciences, Jilin University, Changchun, 130021 Jilin China
- Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Jilin University, Changchun, 130021 Jilin China
| | - Xi Yang
- Department of Biochemistry, College of Basic Medical Sciences, Jilin University, Changchun, 130021 Jilin China
| | - Chang Liu
- Department of Biochemistry, College of Basic Medical Sciences, Jilin University, Changchun, 130021 Jilin China
| | - Xin Jiang
- Department of Biochemistry, College of Basic Medical Sciences, Jilin University, Changchun, 130021 Jilin China
| | - Mujie Kan
- Department of Biochemistry, College of Basic Medical Sciences, Jilin University, Changchun, 130021 Jilin China
| | - Shanli Wu
- Department of Biochemistry, College of Basic Medical Sciences, Jilin University, Changchun, 130021 Jilin China
| | - Jizhou Zhang
- Department of Biochemistry, College of Basic Medical Sciences, Jilin University, Changchun, 130021 Jilin China
| | - Caina Xu
- Department of Biochemistry, College of Basic Medical Sciences, Jilin University, Changchun, 130021 Jilin China
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7
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Kozukue N, Kim DS, Choi SH, Mizuno M, Friedman M. Isomers of the Tomato Glycoalkaloids α-Tomatine and Dehydrotomatine: Relationship to Health Benefits. Molecules 2023; 28:molecules28083621. [PMID: 37110854 PMCID: PMC10142774 DOI: 10.3390/molecules28083621] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 03/27/2023] [Accepted: 04/01/2023] [Indexed: 04/29/2023] Open
Abstract
High-performance liquid chromatography (HPLC) analysis of three commercial tomatine samples and another isolated from green tomatoes revealed the presence of two small peaks in addition to those associated with the glycoalkaloids dehydrotomatine and α-tomatine. The present study investigated the possible structures of the compounds associated with the two small peaks using HPLC-mass spectrophotometric (MS) methods. Although the two peaks elute much earlier on chromatographic columns than the elution times of the known tomato glycoalkaloids dehydrotomatine and α-tomatine, isolation of the two compounds by preparative chromatography and subsequent analysis by MS shows the two compounds have identical molecular weights, tetrasaccharide side chains, and MS and MS/MS fragmentation patterns to dehydrotomatine and α-tomatine. We suggest the two isolated compounds are isomeric forms of dehydrotomatine and α-tomatine. The analytical data indicate that widely used commercial tomatine preparations and those extracted from green tomatoes and tomato leaves consist of a mixture of α-tomatine, dehydrotomatine, an α-tomatine isomer, and a dehydrotomatine isomer in an approximate ratio of 81:15:4:1, respectively. The significance of the reported health benefits of tomatine and tomatidine is mentioned.
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Affiliation(s)
- Nobuyuki Kozukue
- Department of Food Service & Culinary Arts, Seowon University, Cheongju-City 28674, Republic of Korea
| | - Dong-Seok Kim
- Department of Food Service & Industry, Yeungnam University, Gyeongsan-City 38541, Republic of Korea
| | - Suk-Hyun Choi
- Department of Food Service & Culinary Arts, Seowon University, Cheongju-City 28674, Republic of Korea
| | - Masashi Mizuno
- Department of Agrobioscience, Graduate School of Agricultural Science, Kobe University, Kobe 657-8501, Japan
| | - Mendel Friedman
- Western Regional Research Center, Agricultural Research Service, United States Department of Agriculture, Albany, CA 94710, USA
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8
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Mokni-Tlili S, Hechmi S, Ouzari HI, Mechergui N, Ghorbel M, Jedidi N, Hassen A, Hamdi H. Co-occurrence of antibiotic and metal resistance in long-term sewage sludge-amended soils: influence of application rates and pedo-climatic conditions. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:26596-26612. [PMID: 36369449 PMCID: PMC9652132 DOI: 10.1007/s11356-022-23802-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 10/20/2022] [Indexed: 06/16/2023]
Abstract
Urban sewage sludge (USS) is increasingly being used as an alternative organic amendment in agriculture. Because USS originates mostly from human excreta, partially metabolized pharmaceuticals have also been considered in risk assessment studies after reuse. In this regard, we investigated the cumulative effect of five annual USS applications on the spread of antibiotic-resistant bacteria (ARB) and their subsequent resistance to toxic metals in two unvegetated soils. Eventually, USS contained bacterial strains resistant to all addressed antibiotics with indices of resistance varying between 0.25 for gentamicin to 38% for ampicillin and azithromycin. Sludge-amended soils showed also the emergence of resistome for all tested antibiotics compared to non-treated controls. In this regard, the increase of sludge dose generally correlated with ARB counts, while soil texture had no influence. On the other hand, the multi-antibiotic resistance (MAR) of 52 isolates selected from USS and different soil treatments was investigated for 10 most prescribed antibiotics. Nine isolates showed significant MAR index (≥ 0.3) and co-resistance to Cd, As and Be as well. However, events including an extreme flash flood and the termination of USS applications significantly disrupted ARB communities in all soil treatments. In any case, this study highlighted the risks of ARB spread in sludge-amended soils and a greater concern with the recent exacerbation of antibiotic overuse following COVID-19 outbreak.
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Affiliation(s)
- Sonia Mokni-Tlili
- Water Research and Technology Center, University of Carthage, P.O. Box 273, 8020, Soliman, Tunisia
| | - Sarra Hechmi
- Water Research and Technology Center, University of Carthage, P.O. Box 273, 8020, Soliman, Tunisia
| | - Hadda-Imene Ouzari
- Laboratory of Microorganisms and Active Biomolecules, Faculty of Sciences of Tunis, University of Tunis El Manar, LR03ES03, Tunis, Tunisia
| | - Najet Mechergui
- Water Research and Technology Center, University of Carthage, P.O. Box 273, 8020, Soliman, Tunisia
| | - Manel Ghorbel
- Water Research and Technology Center, University of Carthage, P.O. Box 273, 8020, Soliman, Tunisia
| | - Naceur Jedidi
- Water Research and Technology Center, University of Carthage, P.O. Box 273, 8020, Soliman, Tunisia
| | - Abdennaceur Hassen
- Water Research and Technology Center, University of Carthage, P.O. Box 273, 8020, Soliman, Tunisia
| | - Helmi Hamdi
- Food and Water Security Program, Center for Sustainable Development, College of Arts and Sciences, Qatar University, P.O. Box 2713, Doha, Qatar.
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9
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Jánosity A, Baranyi J, Surányi BB, Možina SS, Taczman-Brückner A, Kiskó G, Klančnik A. Estimating the optimal efflux inhibitor concentration of carvacrol as a function of the bacterial physiological state. Front Microbiol 2023; 14:1073798. [PMID: 36760502 PMCID: PMC9905641 DOI: 10.3389/fmicb.2023.1073798] [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: 10/18/2022] [Accepted: 01/06/2023] [Indexed: 01/26/2023] Open
Abstract
Our aim was to find the optimal efflux inhibitor concentration of a natural component, carvacrol, as a function of the physiological state of Escherichia coli. Using fluorescence-based measurements with two strains of E. coli, the effect of carvacrol was assessed at 17 sub-inhibitory concentrations, at which the bacterial efflux mechanism was compromised. The efficacy of carvacrol, as an efflux inhibitor, was compared to synthetic inhibitors and we found carvacrol the most efficient one. We considered the accumulation of Ethidium Bromide (EtBr) as a proxy for drugs spreading in the cell, thus measuring the efflux activity indirectly. The change in membrane integrity caused by the exposure to carvacrol was monitored using the LIVE/DEAD BacLight Bacterial Viability kit. To find the optimal inhibitory concentration of carvacrol, we used predictive microbiology methods. This optimum varied with the bacterial physiological state, as non-growing cultures were less susceptible to the effect of carvacrol than growing cultures were. Moreover, we point out, for the first time, that the efflux-mediated resistance of untreated cultures was also stronger in the non-growing than in the growing phase at population level.
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Affiliation(s)
- Anna Jánosity
- Department of Food Microbiology, Hygiene and Safety, Institute of Food Science and Technology, Hungarian University of Agriculture and Life Sciences, Budapest, Hungary
| | - József Baranyi
- Department of Food Microbiology, Hygiene and Safety, Institute of Food Science and Technology, Hungarian University of Agriculture and Life Sciences, Budapest, Hungary
| | - Botond Bendegúz Surányi
- Department of Food Microbiology, Hygiene and Safety, Institute of Food Science and Technology, Hungarian University of Agriculture and Life Sciences, Budapest, Hungary
| | - Sonja Smole Možina
- Department of Food Science and Technology, Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
| | - Andrea Taczman-Brückner
- Department of Food Microbiology, Hygiene and Safety, Institute of Food Science and Technology, Hungarian University of Agriculture and Life Sciences, Budapest, Hungary
| | - Gabriella Kiskó
- Department of Food Microbiology, Hygiene and Safety, Institute of Food Science and Technology, Hungarian University of Agriculture and Life Sciences, Budapest, Hungary
| | - Anja Klančnik
- Department of Food Science and Technology, Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia,*Correspondence: Anja Klančnik, ✉
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10
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Plant-Derived Xanthones against Clostridial Enteric Infections. Antibiotics (Basel) 2023; 12:antibiotics12020232. [PMID: 36830143 PMCID: PMC9952316 DOI: 10.3390/antibiotics12020232] [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: 12/02/2022] [Revised: 01/13/2023] [Accepted: 01/17/2023] [Indexed: 01/26/2023] Open
Abstract
Intestinal bacterial infections are a major threat to human and animal health. In this study, we found plant-derived antibacterial xanthones, particularly α-mangostin (AMG) from the mangosteen peel, exhibiting extraordinary activities against Clostridium perfringens. Structure-activity relationship analysis showed that prenylation modulated the activity of xanthones. The efficacy of AMG (4, 8, 20 mg/kg body weight) was also demonstrated in the broiler chicken necrotic enteritis model infected with Clostridium perfringens. In the models (n = 6 per group), feed supplementation of AMG maintained the homeostasis of the gut microbiome by reducing the colonization of clostridia and promoting the integrity of intestinal barriers via the upregulation of mucin expression. These results suggest that plant-derived xanthones may be a potential alternative to antibiotics for treating clostridial enteric infections in the clinic.
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11
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Xu K, Wang Y, Yang W, Cai H, Zhang Y, Huang L. Strategies for Prevention and Control of Vibriosis in Asian Fish Culture. Vaccines (Basel) 2022; 11:vaccines11010098. [PMID: 36679943 PMCID: PMC9862775 DOI: 10.3390/vaccines11010098] [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: 11/16/2022] [Revised: 12/26/2022] [Accepted: 12/27/2022] [Indexed: 01/04/2023] Open
Abstract
It is estimated that vibriosis account for about half of the economic losses in Asian fish culture. Consequently, the prevention and control of vibriosis is one of the priority research topics in the field of Asian fish culture disease. Relevant measures have been proposed to control some Vibrios that pose a threat to Asian fish culture, but there are currently only a few effective vaccines available to combat these Vibrios. The purpose of our review is to sum up the main prevention methods and the latest control strategies of seven Vibrio species that cause great harm to Asian aquaculture, including Vibrio harveyi, Vibrio vulnificus, Vibrio parahaemolyticus, Vibrio mimicus, Vibrio anguillarum, Vibrio alginolyticus and Vibrio cholerae. Strategies such as antibiotics, probiotics, bacteriophages, antimicrobials from plants and other natural sources, as well as vaccines, are compared and discussed here. We expect this review will provide some new views and recommendations for the future better prevention and control of vibriosis in Asian fish culture.
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Affiliation(s)
- Kangping Xu
- Fisheries College, Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Jimei University, Xiamen 361021, China
| | - Yushu Wang
- Fisheries College, Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Jimei University, Xiamen 361021, China
| | - Wangxiaohan Yang
- Fisheries College, Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Jimei University, Xiamen 361021, China
| | - Hongyan Cai
- Fisheries College, Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Jimei University, Xiamen 361021, China
| | - Youyu Zhang
- Institute of Electromagnetics and Acoustics, School of Electronic Science and Engineering, Xiamen University, Xiamen 361005, China
- Correspondence: (Y.Z.); (L.H.)
| | - Lixing Huang
- Fisheries College, Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Jimei University, Xiamen 361021, China
- Fisheries College, Fujian Engineering Research Center of Aquatic Breeding and Healthy Aquaculture, Jimei University, Xiamen 361021, China
- Correspondence: (Y.Z.); (L.H.)
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12
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Antibiofilm Action of Plant Terpenes in Salmonella Strains: Potential Inhibitors of the Synthesis of Extracellular Polymeric Substances. Pathogens 2022; 12:pathogens12010035. [PMID: 36678383 PMCID: PMC9864247 DOI: 10.3390/pathogens12010035] [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: 11/12/2022] [Revised: 12/08/2022] [Accepted: 12/23/2022] [Indexed: 12/28/2022] Open
Abstract
Salmonella can form biofilms that contribute to its resistance in food processing environments. Biofilms are a dense population of cells that adhere to the surface, creating a matrix composed of extracellular polymeric substances (EPS) consisting mainly of polysaccharides, proteins, and eDNA. Remarkably, the secreted substances, including cellulose, curli, and colanic acid, act as protective barriers for Salmonella and contribute to its resistance and persistence when exposed to disinfectants. Conventional treatments are mostly ineffective in controlling this problem; therefore, exploring anti-biofilm molecules that minimize and eradicate Salmonella biofilms is required. The evidence indicated that terpenes effectively reduce biofilms and affect their three-dimensional structure due to the decrease in the content of EPS. Specifically, in the case of Salmonella, cellulose is an essential component in their biofilms, and its control could be through the inhibition of glycosyltransferase, the enzyme that synthesizes this polymer. The inhibition of polymeric substances secreted by Salmonella during biofilm development could be considered a target to reduce its resistance to disinfectants, and terpenes can be regarded as inhibitors of this process. However, more studies are needed to evaluate the effectiveness of these compounds against Salmonella enzymes that produce extracellular polymeric substances.
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Liu Y, Han P, Jia Y, Chen Z, Li S, Ma A. Antibacterial Regularity Mining Beneath the Systematic Activity Database of Lipopeptides Brevilaterins: An Instructive Activity Handbook for Its Food Application. Foods 2022; 11:foods11192991. [PMID: 36230066 PMCID: PMC9563055 DOI: 10.3390/foods11192991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 09/22/2022] [Accepted: 09/23/2022] [Indexed: 12/01/2022] Open
Abstract
Bacterial contamination is a primary threat to food safety. Therefore, the persistent development of natural antibacterial agents has become essential work. The present essay attempts to establish a systematic antibacterial activity database to instruct the food application of brevilaterins, promising antibacterial lipopeptides from Brevibacillus laterosporus S62-9. Minimum inhibitory concentrations (MIC) and minimum bactericidal concentrations (MBC) were systematically collected from 43 species of standard bacteria and 140 strains of isolated bacteria (food spoilage bacteria and antibiotic-resistant bacteria) using a broth dilution method. The results showed that brevilaterins performed a broad-spectrum inhibitory (0.5~128 μg/mL) and bactericidal activity (1~256 μg/mL), especially efficient against Gram-positive bacteria and spoilage bacteria from grain products. Moreover, brevilaterins not only inhibit and kill multiple antibiotic-resistant bacteria but do not readily develop resistance, with a small specific value of MBC/MIC (1~8). Furthermore, brevilaterins would interact with negatively charged sodium dodecyl sulfate and bind amphipathic soybean phospholipid with an affinity constant of KD = 4.70 × 10−4 M. No significant activity difference was found between brevilaterin B and brevilaterin C. Collectively, this work contributed rich antibacterial data of brevilaterins and revealed the antibacterial regularity beneath these data, which can be used as an activity handbook to instruct their application in food safety.
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Misra D, Ghosh NN, Mandal M, Mandal V, Baildya N, Mandal S, Mandal V. Anti-enteric efficacy and mode of action of tridecanoic acid methyl ester isolated from Monochoria hastata (L.) Solms leaf. Braz J Microbiol 2022; 53:715-726. [PMID: 35149984 PMCID: PMC9151942 DOI: 10.1007/s42770-022-00696-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Accepted: 02/01/2022] [Indexed: 02/01/2023] Open
Abstract
Monochoria hastata (L.) Solms (family Pontederiaceae), an ethnomedicinal aquatic herb, is used to remedy several gastrointestinal diseases by various ethnic groups in India. The present study aimed to purify and characterize the antibacterial active ingredient against gastrointestinal (GI) diseases and its mode of action using in vitro experimental models. The active lead molecule in the ethyl acetate extract (EA-Mh) fraction has been purified and characterized through high-performance liquid chromatography (HPLC), proton nuclear magnetic resonance (1H NMR), and electrospray ionization mass spectrometry (ESI-MS) methods. The anti-enteric efficacy has been evaluated against enteropathogenic Gram-positive and Gram-negative bacteria by minimum inhibitory concentration (MIC), minimum bactericidal concentration (MBC), lactate dehydrogenase (LDH), and scanning electron microscopy (SEM) studies. The synergistic and antagonistic studies were done on E. coli MTCC 723 using standard antibiotics (ampicillin and kanamycin, final conc. 50 µg/ml) in a sterilized 96-well micro-plate, incubated at 37 ℃ for 24 h. The chromatographic and spectroscopic analyses revealed the presence of tridecanoic acid methyl ester (TAME) in the bioactive fraction. The compound causes significant extracellular leakage activity by disrupting cellular morphology in the Enterococcus faecalis MCC 2041 T and Salmonella enterica serovar Typhimurium MTCC 98, at a dose of 375 μg/ml and 750 μg/ml, respectively. The SEM study shows a significant rupturing of E. coli and E. faecalis cells due to TAME induced autolysis. It has synergistic activity with ampicillin. The in silico molecular docking through the AutoDock Vina 4.2 and GROMACS (ver. 5.1) Charmm27 force field results showed that the TAME had a strong binding affinity Escherichia coli DNA Gyrase B (PDB ID: 5l3j.pdb) protein and caused conformational changes. Thus, the manuscript reports the first time on the characterization of TAME from this plant with a detailed antibacterial mode of action studies.
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Affiliation(s)
- Debabrata Misra
- Plant and Microbial Physiology and Biochemistry Laboratory, Department of Botany, University of Gour Banga, Malda, 732 103 West Bengal India
| | - Narendra Nath Ghosh
- Department of Chemistry, University of Gour Banga, Malda, 732 103 West Bengal India
| | - Manab Mandal
- Plant and Microbial Physiology and Biochemistry Laboratory, Department of Botany, University of Gour Banga, Malda, 732 103 West Bengal India
| | - Vivekananda Mandal
- Plant and Microbial Physiology and Biochemistry Laboratory, Department of Botany, University of Gour Banga, Malda, 732 103 West Bengal India
| | - Nabajyoti Baildya
- Department of Chemistry, University of Kalyani, Kalyani, 741235 West Bengal India
| | - Sukhendu Mandal
- Laboratory of Molecular Bacteriology, Department of Microbiology, University of Calcutta, 35, Ballygunge Circular Road, Kolkata, 700 019 West Bengal India
| | - Vivekananda Mandal
- Plant and Microbial Physiology and Biochemistry Laboratory, Department of Botany, University of Gour Banga, Malda, 732 103 West Bengal India
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YU C, Liu Y, Xuemei Z, Ma A, Jianxin T, Yiling T. Fermented Carrot Pulp Regulates the Dysfunction of Murine Intestinal Microbiota. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:2479956. [PMID: 35340216 PMCID: PMC8942650 DOI: 10.1155/2022/2479956] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Revised: 01/04/2022] [Accepted: 02/10/2022] [Indexed: 11/25/2022]
Abstract
It was the focus of attention that probiotic control drink was packed with prebiotic nutrients and lactic acid bacteria. So, this study is aimed at revealing that the fermented carrot pulp regulation and protection function to the intestinal microecological disorders usually induced by antibiotic treatment. First, we study on lactobacillus fermentation conditions and effects on the secondary metabolism of fermented carrot juice, get its phenolic acids up, and get its flavonoids down. Then, establishment of the dysbacteriosis mouse model was used to validate the fermented carrot pulp prevention and treatment of intestinal microbiota imbalance. After the antibiotic treatment, the mice showed impotence, laziness, slow movement, weight loss, thin feces, dull hair, and anal redness, while the mice in the control group were all normal in terms of the mental state, diet, weight, and bowl movement. Along with the treatment, the abnormal conditions of the mice in the model group and natural recovery group improved in different degrees, indicating that the fermentation treatment is of help to the intestinal microbiota recovery. The fermentation-treated group of mice recovered close to normal that the diarrhea disappeared, and the weight gain, mental state, and the feces became normal. The serum antioxidant (SOD, GSH, and MDA) levels of the mice were checked. The superoxide dismutase (SOD) levels and glutathione (GSH) levels in the ordinary fermentation-treated group and probiotic fermentation-treated group were significantly increased compare to the natural recovery group. The malondialdehyde (MDA) levels showed great differences between the fermentation-treated groups and the blank group. At last, the 16sRNA analysis revealed that the microbiota richness and diversity in probiotic fermentation (J) are much higher than those in the model group (H), ordinary fermentation group (I), and blank group (G). Groups J and I are of significantly higher antioxidant level than group H; however, only the glutathione (GSH) level in group J increased dramatically but not those in the other three groups. Antibiotic treatment-induced mouse intestinal microecological disorder reduce the microbiota richness and diversity. Prebiotics fermented carrot pulp treatment can help in the recovery from the microbiota richness and diversity level prior to the antibiotic treatment, which suggests it can regulate and protect the murine intestinal microbiome.
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Affiliation(s)
- Chenchen YU
- College of Food Science and Technology, Hebei Agricultural University, Baoding Hebei, China
| | - Ying Liu
- College of Food Science and Technology, Hebei Agricultural University, Baoding Hebei, China
| | - Zhang Xuemei
- College of Forestry, Hebei Agricultural University, Baoding Hebei, China
| | - Aijin Ma
- School of Food and Health, Beijing Technology and Business University, Beijing, China
| | - Tan Jianxin
- College of Food Science and Technology, Hebei Agricultural University, Baoding Hebei, China
| | - Tian Yiling
- College of Food Science and Technology, Hebei Agricultural University, Baoding Hebei, China
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Bao Y, He J, Song K, Guo J, Zhou X, Liu S. Functionalization and Antibacterial Applications of Cellulose-Based Composite Hydrogels. Polymers (Basel) 2022; 14:polym14040769. [PMID: 35215680 PMCID: PMC8879376 DOI: 10.3390/polym14040769] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Revised: 02/12/2022] [Accepted: 02/14/2022] [Indexed: 02/04/2023] Open
Abstract
Pathogens, especially drug-resistant pathogens caused by the abuse of antibiotics, have become a major threat to human health and public health safety. The exploitation and application of new antibacterial agents is extremely urgent. As a natural biopolymer, cellulose has recently attracted much attention due to its excellent hydrophilicity, economy, biocompatibility, and biodegradability. In particular, the preparation of cellulose-based hydrogels with excellent structure and properties from cellulose and its derivatives has received increasing attention thanks to the existence of abundant hydrophilic functional groups (such as hydroxyl, carboxy, and aldehyde groups) within cellulose and its derivatives. The cellulose-based hydrogels have broad application prospects in antibacterial-related biomedical fields. The latest advances of preparation and antibacterial application of cellulose-based hydrogels has been reviewed, with a focus on the antibacterial applications of composite hydrogels formed from cellulose and metal nanoparticles; metal oxide nanoparticles; antibiotics; polymers; and plant extracts. In addition, the antibacterial mechanism and antibacterial characteristics of different cellulose-based antibacterial hydrogels were also summarized. Furthermore, the prospects and challenges of cellulose-based antibacterial hydrogels in biomedical applications were also discussed.
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Affiliation(s)
- Yunhui Bao
- Key Laboratory of Hunan Forest Products and Chemical Industry Engineering, Jishou University, Zhangjiajie 427000, China; (Y.B.); (J.H.); (K.S.); (J.G.); (X.Z.)
| | - Jian He
- Key Laboratory of Hunan Forest Products and Chemical Industry Engineering, Jishou University, Zhangjiajie 427000, China; (Y.B.); (J.H.); (K.S.); (J.G.); (X.Z.)
- College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, China
| | - Ke Song
- Key Laboratory of Hunan Forest Products and Chemical Industry Engineering, Jishou University, Zhangjiajie 427000, China; (Y.B.); (J.H.); (K.S.); (J.G.); (X.Z.)
- College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, China
| | - Jie Guo
- Key Laboratory of Hunan Forest Products and Chemical Industry Engineering, Jishou University, Zhangjiajie 427000, China; (Y.B.); (J.H.); (K.S.); (J.G.); (X.Z.)
- College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, China
| | - Xianwu Zhou
- Key Laboratory of Hunan Forest Products and Chemical Industry Engineering, Jishou University, Zhangjiajie 427000, China; (Y.B.); (J.H.); (K.S.); (J.G.); (X.Z.)
- College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, China
| | - Shima Liu
- Key Laboratory of Hunan Forest Products and Chemical Industry Engineering, Jishou University, Zhangjiajie 427000, China; (Y.B.); (J.H.); (K.S.); (J.G.); (X.Z.)
- College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, China
- Correspondence: ; Tel.: +86-0744-8231386
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Kordialik-Bogacka E. Biopreservation of beer: Potential and constraints. Biotechnol Adv 2022; 58:107910. [PMID: 35038561 DOI: 10.1016/j.biotechadv.2022.107910] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 12/19/2021] [Accepted: 01/09/2022] [Indexed: 12/13/2022]
Abstract
The biopreservation of beer, using only antimicrobial agents of natural origin to ensure microbiological stability, is of great scientific and commercial interest. This review article highlights progress in the biological preservation of beer. It describes the antimicrobial properties of beer components and microbiological spoilage risks. It discusses novel biological methods for enhancing beer stability, using natural antimicrobials from microorganisms, plants, and animals to preserve beer, including legal restrictions. The future of beer preservation will involve the skilled knowledge-based exploitation of naturally occurring components in beer, supplementation with generally regarded as safe antimicrobial additives, and mild physical treatments.
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Affiliation(s)
- Edyta Kordialik-Bogacka
- Institute of Fermentation Technology and Microbiology, Faculty of Biotechnology and Food Sciences, Lodz University of Technology, 171/173 Wolczanska Street, 90-530 Lodz, Poland.
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Lactobacillus rhamnosus Ameliorates Multi-Drug-Resistant Bacillus cereus-Induced Cell Damage through Inhibition of NLRP3 Inflammasomes and Apoptosis in Bovine Endometritis. Microorganisms 2022; 10:microorganisms10010137. [PMID: 35056585 PMCID: PMC8777719 DOI: 10.3390/microorganisms10010137] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 01/07/2022] [Indexed: 01/09/2023] Open
Abstract
Bacillus cereus, considered a worldwide human food-borne pathogen, has brought serious health risks to humans and animals and huge losses to animal husbandry. The plethora of diverse toxins and drug resistance are the focus for B. cereus. As an alternative treatment to antibiotics, probiotics can effectively alleviate the hazards of super bacteria, food safety, and antibiotic resistance. This study aimed to investigate the frequency and distribution of B. cereus in dairy cows and to evaluate the effects of Lactobacillus rhamnosus in a model of endometritis induced by multi-drug-resistant B. cereus. A strong poisonous strain with a variety of drug resistances was used to establish an endometrial epithelial cell infection model. B. cereus was shown to cause damage to the internal structure, impair the integrity of cells, and activate the inflammatory response, while L. rhamnosus could inhibit cell apoptosis and alleviate this damage. This study indicates that the B. cereus-induced activation of the NLRP3 signal pathway involves K+ efflux. We conclude that LGR-1 may relieve cell destruction by reducing K+ efflux to the extracellular caused by the perforation of the toxins secreted by B. cereus on the cell membrane surface.
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George AS, Brandl MT. Plant Bioactive Compounds as an Intrinsic and Sustainable Tool to Enhance the Microbial Safety of Crops. Microorganisms 2021; 9:2485. [PMID: 34946087 PMCID: PMC8704493 DOI: 10.3390/microorganisms9122485] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 11/20/2021] [Accepted: 11/26/2021] [Indexed: 12/25/2022] Open
Abstract
Outbreaks of produce-associated foodborne illness continue to pose a threat to human health worldwide. New approaches are necessary to improve produce safety. Plant innate immunity has potential as a host-based strategy for the deactivation of enteric pathogens. In response to various biotic and abiotic threats, plants mount defense responses that are governed by signaling pathways. Once activated, these result in the release of reactive oxygen and nitrogen species in addition to secondary metabolites that aim at tempering microbial infection and pest attack. These phytochemicals have been investigated as alternatives to chemical sanitization, as many are effective antimicrobial compounds in vitro. Their antagonistic activity toward enteric pathogens may also provide an intrinsic hurdle to their viability and multiplication in planta. Plants can detect and mount basal defenses against enteric pathogens. Evidence supports the role of plant bioactive compounds in the physiology of Salmonella enterica, Escherichia coli, and Listeria monocytogenes as well as their fitness on plants. Here, we review the current state of knowledge of the effect of phytochemicals on enteric pathogens and their colonization of plants. Further understanding of the interplay between foodborne pathogens and the chemical environment on/in host plants may have lasting impacts on crop management for enhanced microbial safety through translational applications in plant breeding, editing technologies, and defense priming.
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Affiliation(s)
| | - Maria T. Brandl
- Produce Safety and Microbiology Research Unit, United States Department of Agriculture, Agricultural Research Service, Albany, CA 94710, USA;
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James C, Dixon R, Talbot L, James SJ, Williams N, Onarinde BA. Assessing the Impact of Heat Treatment of Food on Antimicrobial Resistance Genes and Their Potential Uptake by Other Bacteria-A Critical Review. Antibiotics (Basel) 2021; 10:1440. [PMID: 34943652 PMCID: PMC8698031 DOI: 10.3390/antibiotics10121440] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 11/19/2021] [Accepted: 11/22/2021] [Indexed: 12/11/2022] Open
Abstract
The dissemination of antibiotic resistance genes (ARGs) is a global health concern. This study identifies and critically reviews the published evidence on whether cooking (heating) food to eliminate bacterial contamination induces sufficient damage to the functionality of ARGs. Overall, the review found that there is evidence in the literature that Antimicrobial Resistant (AMR) bacteria are no more heat resistant than non-AMR bacteria. Consequently, recommended heat treatments sufficient to kill non-AMR bacteria in food (70 °C for at least 2 min, or equivalent) should be equally effective in killing AMR bacteria. The literature shows there are several mechanisms through which functional genes from AMR bacteria could theoretically persist in heat-treated food and be transferred to other bacteria. The literature search found sparce published evidence on whether ARGs may actually persist in food after effective heat treatments, and whether functional genes can be transferred to other bacteria. However, three publications have demonstrated that functional ARGs in plasmids may be capable of persisting in foods after effective heat treatments. Given the global impact of AMR, there is clearly a need for further practical research on this topic to provide sufficient evidence to fully assess whether there is a risk to human health from the persistence of functional ARGs in heat-treated and cooked foods.
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Affiliation(s)
- Christian James
- Food Refrigeration & Process Engineering Research Centre (FRPERC), Grimsby Institute, Nuns Corner, Grimsby DN34 5BQ, UK; (L.T.); (S.J.J.)
- National Centre for Food Manufacturing (NCFM), University of Lincoln, Park Road, Holbeach PE12 7PT, UK;
| | - Ronald Dixon
- Joseph Banks Laboratories, School of Life Sciences, University of Lincoln, Lincoln LN6 7DL, UK;
| | - Luke Talbot
- Food Refrigeration & Process Engineering Research Centre (FRPERC), Grimsby Institute, Nuns Corner, Grimsby DN34 5BQ, UK; (L.T.); (S.J.J.)
| | - Stephen J. James
- Food Refrigeration & Process Engineering Research Centre (FRPERC), Grimsby Institute, Nuns Corner, Grimsby DN34 5BQ, UK; (L.T.); (S.J.J.)
- National Centre for Food Manufacturing (NCFM), University of Lincoln, Park Road, Holbeach PE12 7PT, UK;
| | - Nicola Williams
- Institute of Infection, Veterinary and Ecological Sciences, Leahurst Campus, University of Liverpool, Neston CH64 7TE, UK;
| | - Bukola A. Onarinde
- National Centre for Food Manufacturing (NCFM), University of Lincoln, Park Road, Holbeach PE12 7PT, UK;
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Ginting EV, Retnaningrum E, Widiasih DA. Antibacterial activity of clove ( Syzygium aromaticum) and cinnamon ( Cinnamomum burmannii) essential oil against extended-spectrum β-lactamase-producing bacteria. Vet World 2021; 14:2206-2211. [PMID: 34566340 PMCID: PMC8448639 DOI: 10.14202/vetworld.2021.2206-2211] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 07/13/2021] [Indexed: 11/29/2022] Open
Abstract
Background and Aim: Extended-spectrum β-lactamase (ESBL) is an enzyme produced by the family of Enterobacteriaceae, especially Escherichia coli and Klebsiella pneumoniae, which can hydrolyzeβ-lactam antibiotics, such as penicillins, cephalosporins, cephamycin, and carbapenem. ESBL-producing bacteria are widely distributed from farms to slaughterhouses until food products originating from animals are available in the market, which plays an important role as a pathway for the exposure and transmission of ESBL-producing bacteria from food products of animal origin to humans. This study aimed to determine the antibacterial activity of Syzygium aromaticum (clove) and Cinnamomum verum (cinnamon) essential oils against strains resistant to ESBL-producing E. coli and K. pneumoniae isolates. Materials and Methods: The antibacterial activity of clove and cinnamon essential oils was tested against three strains of tested bacteria using the disk diffusion method. The minimum inhibitory concentration (MIC) of clove and cinnamon essential oils was determined using the broth microdilution method. The minimumbactericidal concentration (MBC) was determined using the MIC. Morphological changes on each tested bacteria were observed through scanning electron microscopy (SEM). Results: Both essential oils exhibited inhibitory effects toward all test organisms, indicated by inhibition zones around the disk. The MIC values of clove essential oil were 0.078% (v/v) for all tested bacteria, whereas the MICs of cinnamon essential oil ranged from 0.039% (v/v) to 0.156% (v/v) for all tested bacteria. MBC values of clove and cinnamon essential oils ranged from 0.078% (v/v) to 0.156% (v/v) for all tested bacteria. There were morphological changes in each tested bacterial cell that was observed through SEM. Each tested bacteria treated with clove and cinnamon essential oils showed shrinkage and cells lysis. Conclusion: It was concluded that clove and cinnamon essential oils have emerged as effective antibacterial agents by showing high antibacterial activity against ESBL-producing E. coli and K. pneumoniae isolates, as evidenced by the inhibition zone diameter and MIC value.
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Affiliation(s)
| | | | - Dyah Ayu Widiasih
- Faculty of Veterinary Medicine, Universitas Gadjah Mada, Yogyakarta, Indonesia
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22
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Álvarez-Martínez FJ, Barrajón-Catalán E, Herranz-López M, Micol V. Antibacterial plant compounds, extracts and essential oils: An updated review on their effects and putative mechanisms of action. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2021; 90:153626. [PMID: 34301463 DOI: 10.1016/j.phymed.2021.153626] [Citation(s) in RCA: 127] [Impact Index Per Article: 42.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 06/03/2021] [Accepted: 06/10/2021] [Indexed: 05/20/2023]
Abstract
BACKGROUND Antibiotic-resistant bacteria pose a global health threat. Traditional antibiotics can lose their effectiveness, and the development of novel effective antimicrobials has become a priority in recent years. In this area, plants represent an invaluable source of antimicrobial compounds with vast therapeutic potential. PURPOSE To review the full possible spectrum of plant antimicrobial agents (plant compounds, extracts and essential oils) discovered from 2016 to 2021 and their potential to decrease bacterial resistance. Their activities against bacteria, with special emphasis on multidrug resistant bacteria, mechanisms of action, possible combinations with traditional antibiotics, roles in current medicine and future perspectives are discussed. METHODS Studies focusing on the antimicrobial activity of compounds of plant origin and their mechanism of action against bacteria were identified and summarized, including contributions from January 2016 until January 2021. Articles were extracted from the Medline database using PubMed search engine with relevant keywords and operators. RESULTS The search yielded 11,689 articles from 149 countries, of which 101 articles were included in this review. Reports from 41 phytochemicals belonging to 20 families were included. Reports from plant extracts and essential oils from 39 plant species belonging to 17 families were also included. Polyphenols and terpenes were the most active phytochemicals studied, either alone or as a part of plant extracts or essential oils. Plasma membrane disruption was the most common mechanism of antimicrobial action. Number and position of phenolic hydroxyl groups, double bonds, delocalized electrons and conjugation with sugars in the case of flavonoids seemed to be crucial for antimicrobial capacity. Combinations of phytochemicals with beta-lactam antibiotics were the most studied, and the inhibition of efflux pumps was the most common synergistic mechanism. CONCLUSION In recent years, terpenes, flavones, flavonols and some alkaloids and phenylpropanoids, either isolated or as a part of extracts, have shown promising antimicrobial activity, being membrane disruption their most common mechanism. However, their utilization as appropriate antimicrobials need to be boosted by means of new omics technologies and network pharmacology to find the most effective combinations among them or in combination with antibiotics.
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Affiliation(s)
- F J Álvarez-Martínez
- Instituto de Biología Molecular y Celular (IBMC) and Instituto de Investigación, Desarrollo e Innovación en Biotecnología Sanitaria de Elche (IDiBE), Universidad Miguel Hernández (UMH), 03202 Elche, Spain
| | - E Barrajón-Catalán
- Instituto de Biología Molecular y Celular (IBMC) and Instituto de Investigación, Desarrollo e Innovación en Biotecnología Sanitaria de Elche (IDiBE), Universidad Miguel Hernández (UMH), 03202 Elche, Spain.
| | - M Herranz-López
- Instituto de Biología Molecular y Celular (IBMC) and Instituto de Investigación, Desarrollo e Innovación en Biotecnología Sanitaria de Elche (IDiBE), Universidad Miguel Hernández (UMH), 03202 Elche, Spain
| | - V Micol
- Instituto de Biología Molecular y Celular (IBMC) and Instituto de Investigación, Desarrollo e Innovación en Biotecnología Sanitaria de Elche (IDiBE), Universidad Miguel Hernández (UMH), 03202 Elche, Spain; CIBER: CB12/03/30038, Fisiopatología de la Obesidad y la Nutrición, CIBERobn, Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
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Environmental antimicrobial resistance and its drivers: a potential threat to public health. J Glob Antimicrob Resist 2021; 27:101-111. [PMID: 34454098 DOI: 10.1016/j.jgar.2021.08.001] [Citation(s) in RCA: 113] [Impact Index Per Article: 37.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 07/29/2021] [Accepted: 08/02/2021] [Indexed: 01/21/2023] Open
Abstract
Imprudent and overuse of clinically relevant antibiotics in agriculture, veterinary and medical sectors contribute to the global epidemic increase in antimicrobial resistance (AMR). There is a growing concern among researchers and stakeholders that the environment acts as an AMR reservoir and plays a key role in the dissemination of antimicrobial resistance genes (ARGs). Various drivers are contributing factors to the spread of antibiotic-resistant bacteria and their ARGs either directly through antimicrobial drug use in health care, agriculture/livestock and the environment or antibiotic residues released from various domestic settings. Resistant micro-organisms and their resistance genes enter the soil, air, water and sediments through various routes or hotspots such as hospital wastewater, agricultural waste or wastewater treatment plants. Global mitigation strategies primarily involve the identification of high-risk environments that are responsible for the evolution and spread of resistance. Subsequently, AMR transmission is affected by the standards of infection control, sanitation, access to clean water, access to assured quality antimicrobials and diagnostics, travel and migration. This review provides a brief description of AMR as a global concern and the possible contribution of different environmental drivers to the transmission of antibiotic-resistant bacteria or ARGs through various mechanisms. We also aim to highlight the key knowledge gaps that hinder environmental regulators and mitigation strategies in delivering environmental protection against AMR.
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Ababneh H, Hameed BH. Chitosan-derived hydrothermally carbonized materials and its applications: A review of recent literature. Int J Biol Macromol 2021; 186:314-327. [PMID: 34197858 DOI: 10.1016/j.ijbiomac.2021.06.161] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 06/21/2021] [Accepted: 06/24/2021] [Indexed: 02/06/2023]
Abstract
Chitosan (CS) is a linear polysaccharide biopolymer, one of the most abundant biowastes in the environment. This makes chitosan a potential material for a wide range of applications. To improve CS's properties, chitosan has to be chemically modified. Hydrothermal carbonization (HTC) is a sustainable process for converting chitosan to solid carbonized material. This article presents a review on the applications of hydrothermally treated chitosan in different fields such as water treatment, heavy metals adsorption, carbon dioxide capturing, solar cells, energy storage, biosensing, supercapacitors, and catalysis. Moreover, this review covers the impact of HTC process parameters on the properties of the produced carbon material. The diversity of applications indicates the great possibilities and multifunctionality of hydrothermally carbonized chitosan and its derivatives. The utilization of HTC-CS is expected to further expand as a result of the movement toward sustainable, environmentally-friendly resources. Thus, this review also recommends a few suggestions to improve the properties of HTC chitosan and its comprehensive applications.
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Affiliation(s)
- Hani Ababneh
- Department of Chemical Engineering, College of Engineering, Qatar University, P.O Box: 2713, Doha, Qatar
| | - B H Hameed
- Department of Chemical Engineering, College of Engineering, Qatar University, P.O Box: 2713, Doha, Qatar.
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Identification of Erythromycin and Clarithromycin Metabolites Formed in Chicken Liver Microsomes Using Liquid Chromatography-High-Resolution Mass Spectrometry. Foods 2021; 10:foods10071504. [PMID: 34209740 PMCID: PMC8304660 DOI: 10.3390/foods10071504] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 06/24/2021] [Accepted: 06/25/2021] [Indexed: 11/17/2022] Open
Abstract
Nontargeted analysis can be used for the rapid screening and confirmatory analysis of veterinary drugs and their metabolites, which are important for the comprehensive safety evaluation of animal-derived foods. Here, a novel nontargeted screening approach based on liquid chromatography coupled with electrospray ionization-high-resolution mass spectrometry (LC/ESI-HR-MS) was developed to determine erythromycin, clarithromycin, and their metabolites in chicken liver microsomes. Erythromycin and clarithromycin were incubated in vitro in the presence of NADPH for 60 min to generate metabolites in chicken liver microsomes. After the incubation, the supernatant was extracted using ultrasonic shaking, orbital shaking, and centrifugation before analysis using LC/ESI-HR-MS in positive ion mode on an Agilent Eclipse Plus C18 column (100 mm × 2.1 mm; i.d. 3.5 µm) with 0.1 percent formic acid-water and acetonitrile as the mobile phases for gradient elution at 0.4 mL/min. The results show that erythromycin can produce N-desmethyl-erythromycin A in chicken liver microsomes, but clarithromycin cannot produce N-desmethyl-clarithromycin in chicken liver microsomes. The N-desmethyl-erythromycin A and N-desmethyl-clarithromycin were tentatively identified in chicken liver microsomes using the established quick analytic method, which will provide a theoretical foundation for future research on pharmacokinetics and drug elimination in poultry.
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Jánosity A, Klančnik A, Kiskó G, Možina SS, Baranyi J. Determining optimum carvacrol treatment as a cardinal value of a secondary model. Int J Food Microbiol 2021; 354:109311. [PMID: 34225033 DOI: 10.1016/j.ijfoodmicro.2021.109311] [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: 06/01/2020] [Revised: 05/06/2021] [Accepted: 06/14/2021] [Indexed: 10/21/2022]
Abstract
Predictive microbiology methods were used to study the effect of carvacrol on the bacterial resistance to antimicrobials. Our objective was to estimate the optimum dose of carvacrol at concentrations below its MIC value (Minimum Inhibitory Concentration). As a fluorescent marker, ethidium bromide (EtBr) was applied to Escherichia coli to acquire raw data. The accumulation of EtBr was measured by its fluorescence signal (Fs), in the unit of RFU (Relative Fluorescence Unit). The temporal change of the fluorescence values, at a constant concentration of carvacrol, was described by a saturation curve (primary model). The difference, within the observation interval, between the fitted initial and maximum fluorescent values was chosen as the primary parameter to be fitted in the secondary model: a convex, asymmetric, bi-linear function of the carvacrol concentration changing between 0 and 0.5 MIC. Its breakpoint is the optimum value of the carvacrol, a cardinal parameter of the secondary model, where the chosen primary parameter assumes its highest value. This optimum was estimated with high uncertainty for individual experiments, but F-test showed that, with appropriate experimental and numerical procedure, its existence and value can be claimed with confidence. Our results demonstrate that the estimation of the optimum of the secondary model can be robust even if the full secondary model is uncertain.
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Affiliation(s)
- Anna Jánosity
- Department of Food Microbiology, Hygiene and Safety, Hungarian University of Agriculture and Life Sciences, Budapest, Hungary
| | - Anja Klančnik
- Department of Food Science and Technology, University of Ljubljana, Ljubljana, Slovenia
| | - Gabriella Kiskó
- Department of Food Microbiology, Hygiene and Safety, Hungarian University of Agriculture and Life Sciences, Budapest, Hungary
| | - Sonja Smole Možina
- Department of Food Science and Technology, University of Ljubljana, Ljubljana, Slovenia
| | - József Baranyi
- Institute of Nutrition, University of Debrecen, Debrecen, Hungary.
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Rather AH, Wani TU, Khan RS, Pant B, Park M, Sheikh FA. Prospects of Polymeric Nanofibers Loaded with Essential Oils for Biomedical and Food-Packaging Applications. Int J Mol Sci 2021; 22:4017. [PMID: 33924640 PMCID: PMC8069027 DOI: 10.3390/ijms22084017] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 04/09/2021] [Accepted: 04/09/2021] [Indexed: 02/08/2023] Open
Abstract
Essential oils prevent superbug formation, which is mainly caused by the continuous use of synthetic drugs. This is a significant threat to health, the environment, and food safety. Plant extracts in the form of essential oils are good enough to destroy pests and fight bacterial infections in animals and humans. In this review article, different essential oils containing polymeric nanofibers fabricated by electrospinning are reviewed. These nanofibers containing essential oils have shown applications in biomedical applications and as food-packaging materials. This approach of delivering essential oils in nanoformulations has attracted considerable attention in the scientific community due to its low price, a considerable ratio of surface area to volume, versatility, and high yield. It is observed that the resulting nanofibers possess antimicrobial, anti-inflammatory, and antioxidant properties. Therefore, they can reduce the use of toxic synthetic drugs that are utilized in the cosmetics, medicine, and food industries. These nanofibers increase barrier properties against light, oxygen, and heat, thereby protecting and preserving the food from oxidative damage. Moreover, the nanofibers discussed are introduced with naturally derived chemical compounds in a controlled manner, which simultaneously prevents their degradation. The nanofibers loaded with different essential oils demonstrate an ability to increase the shelf-life of various food products while using them as active packaging materials.
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Affiliation(s)
- Anjum Hamid Rather
- Department of Nanotechnology, University of Kashmir Hazratbal, Srinagar 190006, Jammu and Kashmir, India; (A.H.R.); (T.U.W.); (R.S.K.)
| | - Taha Umair Wani
- Department of Nanotechnology, University of Kashmir Hazratbal, Srinagar 190006, Jammu and Kashmir, India; (A.H.R.); (T.U.W.); (R.S.K.)
| | - Rumysa Saleem Khan
- Department of Nanotechnology, University of Kashmir Hazratbal, Srinagar 190006, Jammu and Kashmir, India; (A.H.R.); (T.U.W.); (R.S.K.)
| | - Bishweshwar Pant
- Carbon Composite Energy Nanomaterials Research Center, Woosuk University, Wanju-Gun 55338, Jeollabuk-do, Korea;
| | - Mira Park
- Carbon Composite Energy Nanomaterials Research Center, Woosuk University, Wanju-Gun 55338, Jeollabuk-do, Korea;
| | - Faheem A. Sheikh
- Department of Nanotechnology, University of Kashmir Hazratbal, Srinagar 190006, Jammu and Kashmir, India; (A.H.R.); (T.U.W.); (R.S.K.)
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Sazykin IS, Khmelevtsova LE, Seliverstova EY, Sazykina MA. Effect of Antibiotics Used in Animal Husbandry on the Distribution of Bacterial Drug Resistance (Review). APPL BIOCHEM MICRO+ 2021. [DOI: 10.1134/s0003683821010166] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Álvarez-Martínez FJ, Rodríguez JC, Borrás-Rocher F, Barrajón-Catalán E, Micol V. The antimicrobial capacity of Cistus salviifolius and Punica granatum plant extracts against clinical pathogens is related to their polyphenolic composition. Sci Rep 2021; 11:588. [PMID: 33436818 PMCID: PMC7803989 DOI: 10.1038/s41598-020-80003-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 12/16/2020] [Indexed: 11/08/2022] Open
Abstract
Antimicrobial resistance poses a serious threat to human health worldwide. Plant compounds may help to overcome antibiotic resistance due to their potential resistance modifying capacity. Several botanical extracts and pure polyphenolic compounds were screened against a panel of eleven bacterial isolates with clinical relevance. The two best performing agents, Cistus salviifolius (CS) and Punica granatum (GP) extracts, were tested against 100 Staphylococcus aureus clinical isolates, which resulted in average MIC50 values ranging between 50-80 µg/mL. CS extract, containing hydrolyzable tannins and flavonoids such as myricetin and quercetin derivatives, demonstrated higher activity against methicillin-resistant S. aureus isolates. GP extract, which contained mostly hydrolyzable tannins, such as punicalin and punicalagin, was more effective against methicillin-sensitive S. aureus isolates. Generalized linear model regression and multiple correspondence statistical analysis revealed a correlation between a higher susceptibility to CS extract with bacterial resistance to beta-lactam antibiotics and quinolones. On the contrary, susceptibility to GP extract was related with bacteria sensitive to quinolones and oxacillin. Bacterial susceptibility to GP and CS extracts was linked to a resistance profile based on cell wall disruption mechanism. In conclusion, a differential antibacterial activity against S. aureus isolates was observed depending on antibiotic resistance profile of isolates and extract polyphenolic composition, which may lead to development of combinatorial therapies including antibiotics and botanical extracts.
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Affiliation(s)
- Francisco Javier Álvarez-Martínez
- Instituto de Biología Molecular y Celular (IBMC) and Instituto de Investigación, Desarrollo e Innovación en Biotecnología Sanitaria de Elche (IDiBE), Universidad Miguel Hernández (UMH), 03202, Elche, Spain
| | - Juan Carlos Rodríguez
- Microbiology Section, University General Hospital of Alicante, Alicante Institute for Health and Biomedical Research (ISABIAL Foundation, Alicante, Spain
| | - Fernando Borrás-Rocher
- Statistics and Operative Research Department, Miguel Hernández University (UMH), Avda. Universidad s/n, 03202, Elche, Spain
| | - Enrique Barrajón-Catalán
- Instituto de Biología Molecular y Celular (IBMC) and Instituto de Investigación, Desarrollo e Innovación en Biotecnología Sanitaria de Elche (IDiBE), Universidad Miguel Hernández (UMH), 03202, Elche, Spain.
| | - Vicente Micol
- Instituto de Biología Molecular y Celular (IBMC) and Instituto de Investigación, Desarrollo e Innovación en Biotecnología Sanitaria de Elche (IDiBE), Universidad Miguel Hernández (UMH), 03202, Elche, Spain
- CIBER, Fisiopatología de la Obesidad y la Nutrición, CIBERobn, Instituto de Salud Carlos III (CB12/03/30038), Madrid, Spain
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Kaur R, Tiwari A, Manish M, Maurya IK, Bhatnagar R, Singh S. Common garlic (Allium sativum L.) has potent Anti-Bacillus anthracis activity. JOURNAL OF ETHNOPHARMACOLOGY 2021; 264:113230. [PMID: 32853741 DOI: 10.1016/j.jep.2020.113230] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Revised: 03/14/2020] [Accepted: 07/29/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Gastrointestinal anthrax, a disease caused by Bacillus anthracis, remains an important but relatively neglected endemic disease of animals and humans in remote areas of the Indian subcontinent and some parts of Africa. Its initial symptoms include diarrhea and stomachache. In the current study, several common plants indicated for diarrhea, dysentery, stomachache or as stomachic as per traditional knowledge in the Indian subcontinent, i.e., Aegle marmelos (L.) Correa (Bael), Allium cepa L. (Onion), Allium sativum L. (Garlic), Azadirachta indica A. Juss. (Neem), Berberis asiatica Roxb. ex DC. (Daruharidra), Coriandrum sativum L. (Coriander), Curcuma longa L. (Turmeric), Cynodon dactylon (L.) Pers. (Bermuda grass), Mangifera indica L. (Mango), Morus indica L. (Black mulberry), Ocimum tenuiflorum L. (Ocimum sanctum L., Holy Basil), Ocimum gratissimum L. (Ram Tulsi), Psidium guajava L. (Guava), Zingiber officinale Roscoe (Ginger), were evaluated for their anti-Bacillus anthracis property. The usage of Azadirachta indica A. Juss. and Curcuma longa L. by Santals (India), and Allium sp. by biblical people to alleviate anthrax-like symptoms is well documented, but the usage of other plants is traditionally only indicated for different gastrointestinal disturbances/conditions. AIM OF THE STUDY Evaluate the above listed commonly available edible plants from the Indian subcontinent that are used in the traditional medicine to treat gastrointestinal diseases including those also indicated for anthrax-like symptoms for the presence of potent anti-B. anthracis activity in a form amenable to use by the general population in the endemic areas. MATERIALS AND METHODS Aqueous extracts made from fourteen plants indicated above were screened for their anti-B. anthracis activity using agar-well diffusion assay (AWDA) and broth microdilution methods. The Aqueous Garlic Extract (AGE) that displayed most potent anti-B. anthracis activity was assessed for its thermostability, stability under pH extremes encountered in the gastrointestinal tract, and potential antagonistic interaction with bile salts as well as the FDA-approved antibiotics used for anthrax control. The bioactive fractions from the AGE were isolated by TLC coupled bioautography followed by their characterization using GC-MS. RESULTS Garlic (Allium sativum L.) extract was identified as the most promising candidate with bactericidal activity against B. anthracis. It consistently inhibited the growth of B. anthracis in AWDA and decreased the viable colony-forming unit counts in liquid-broth cultures by 6-logs within 6-12 h. The AGE displayed acceptable thermostability (>80% anti-B. anthracis activity retained on incubation at 50 °C for 12 h) and stability in gastric pH range (2-8). It did not antagonize the activity of FDA-approved antibiotics used for anthrax control. GC-MS analysis of the TLC separated bioactive fractions of AGE indicated the presence of previously unreported constituents such as phthalic acid derivatives, acid esters, phenyl group-containing compounds, steroids etc. CONCLUSION: The Aqueous Garlic Extract (AGE) displayed potent anti-B. anthracis activity. It was better than that displayed by Azadirachta indica A. Juss. (Neem) and Mangifera indica L., while Curcuma longa L. (Turmeric) did not show any activity under the assay conditions used. Further work should be undertaken to explore the possible application of AGE in preventing anthrax incidences in endemic areas.
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Affiliation(s)
- Rajinder Kaur
- Department of Microbial Biotechnology, Panjab University, Chandigarh, 160014, India.
| | - Atul Tiwari
- Department of Microbial Biotechnology, Panjab University, Chandigarh, 160014, India.
| | - Manish Manish
- School of Biotechnology, Jawaharlal Nehru University, New Delhi, 110067, India.
| | - Indresh K Maurya
- Department of Microbial Biotechnology, Panjab University, Chandigarh, 160014, India.
| | - Rakesh Bhatnagar
- School of Biotechnology, Jawaharlal Nehru University, New Delhi, 110067, India.
| | - Samer Singh
- Department of Microbial Biotechnology, Panjab University, Chandigarh, 160014, India; Centre of Experimental Medicine and Surgery, Institute of Medical Sciences, Banaras Hindu University, Varanasi, 221005, India.
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Wang L, Qi C, Wang L, Wang T, Lei Y, Zeng X, Liu J, Liang X, Huang L, Wu Y. Rapid Screening and Quantification of Multi-Class Multi-Residue Veterinary Drugs in Pork by a Modified Quechers Protocol Coupled to UPLC-QOrbitrap HRMS. CURR ANAL CHEM 2020. [DOI: 10.2174/1573411015666190926123512] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
A rapid and simple analytical method for the screening and quantification of
multi-residues was established by a quick, easy, cheap, effective, rugged and safe (QuEChERS) approach
coupled to ultra-performance liquid chromatography and electrospray ionization quadrupole
orbitrap high-resolution mass spectrometry (UPLC-Q-Orbitrap HRMS). A total number of 59 veterinary
drugs were investigated, which belonged to 12 classes, such as β-agonist, quinolones, sulfonamides,
tetracyclines, lincomycin series, triphenylmethane, nitroimidazoles, macrolides, amide alcohols,
quinoxalines, steroid hormone and sedatives.
Methods:
The factors which influence the determination of veterinary drugs residues, such as mobile
phase, extract solvent, clean up sorbent, and re-dissolved solvent, were optimized by the single factor
experiment. The method was sufficiently validated by using the parameters of linearity, sensitivity,
accuracy, and repeatability.
Results:
The response of the detector was linear for 59 veterinary drug residues in extensive range
(two to three orders of magnitude) with a high coefficient of determination (R2) (0.9995-0.9998).
The limit of quantification (LOQ) ranged from 0.1μg/kg to 2.0μg/kg for 59 veterinary drug residues
in pork samples. The repeatability was in the range of 1.0%-9.5%. Average recoveries of 59 veterinary
drugs at three spiked levels ranged from 53.7%-117.8% with relative standard deviation (RSD)
of 1.9%-13.9%. The full MS scan coupled with data-dependent MS/MS mode was applied for
screening the target compounds to simultaneously obtain the accurate mass of parent ion and the
mass spectrum of fragments. Elemental composition, accurate mass, and retention time and characteristic
fragment ions were used to establish a homemade database.
Conclusion:
The ability of the homemade database was verified by analyzing the real pork samples,
and the result was satisfactory.
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Affiliation(s)
- Liya Wang
- Guangdong Institute of Food Inspection (Guangdong Inspection Center of Wine and Spirits), 510410, Guangdong, China
| | - Chunyan Qi
- Guangdong Institute of Food Inspection (Guangdong Inspection Center of Wine and Spirits), 510410, Guangdong, China
| | - Lidan Wang
- School of Food Science and Engineering, South China University of Technology, 510640, Guangdong, China
| | - Tingcai Wang
- Guangdong Institute of Food Inspection (Guangdong Inspection Center of Wine and Spirits), 510410, Guangdong, China
| | - Yi Lei
- Guangdong Institute of Food Inspection (Guangdong Inspection Center of Wine and Spirits), 510410, Guangdong, China
| | - Xuefang Zeng
- Guangdong Institute of Food Inspection (Guangdong Inspection Center of Wine and Spirits), 510410, Guangdong, China
| | - Jiafei Liu
- Guangdong Institute of Food Inspection (Guangdong Inspection Center of Wine and Spirits), 510410, Guangdong, China
| | - Xuxia Liang
- Guangdong Institute of Food Inspection (Guangdong Inspection Center of Wine and Spirits), 510410, Guangdong, China
| | - Lixin Huang
- School of Food Science and Engineering, South China University of Technology, 510640, Guangdong, China
| | - Yongning Wu
- NHC Key Laboratory of Food Safety Risk Assessment, China National Center for Food Safety Risk Assessment, 10022, Beijing, China
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Friedman M, Tam CC, Cheng LW, Land KM. Anti-trichomonad activities of different compounds from foods, marine products, and medicinal plants: a review. BMC Complement Med Ther 2020; 20:271. [PMID: 32907567 PMCID: PMC7479404 DOI: 10.1186/s12906-020-03061-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 08/25/2020] [Indexed: 02/07/2023] Open
Abstract
Human trichomoniasis, caused by the pathogenic parasitic protozoan Trichomonas vaginalis, is the most common non-viral sexually transmitted disease that contributes to reproductive morbidity in affected women and possibly to prostate cancer in men. Tritrichomonas foetus strains cause the disease trichomoniasis in farm animals (cattle, bulls, pigs) and diarrhea in domestic animals (cats and dogs). Because some T. vaginalis strains have become resistant to the widely used drug metronidazole, there is a need to develop alternative treatments, based on safe natural products that have the potential to replace and/or enhance the activity of lower doses of metronidazole. To help meet this need, this overview collates and interprets worldwide reported studies on the efficacy of structurally different classes of food, marine, and medicinal plant extracts and some of their bioactive pure compounds against T. vaginalis and T. foetus in vitro and in infected mice and women. Active food extracts include potato peels and their glycoalkaloids α-chaconine and α-solanine, caffeic and chlorogenic acids, and quercetin; the tomato glycoalkaloid α-tomatine; theaflavin-rich black tea extracts and bioactive theaflavins; plant essential oils and their compounds (+)-α-bisabolol and eugenol; the grape skin compound resveratrol; the kidney bean lectin, marine extracts from algae, seaweeds, and fungi and compounds that are derived from fungi; medicinal extracts and about 30 isolated pure compounds. Also covered are the inactivation of drug-resistant T. vaginalis and T. foetus strains by sensitized light; anti-trichomonad effects in mice and women; beneficial effects of probiotics in women; and mechanisms that govern cell death. The summarized findings will hopefully stimulate additional research, including molecular-mechanism-guided inactivations and human clinical studies, that will help ameliorate adverse effects of pathogenic protozoa.
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Affiliation(s)
- Mendel Friedman
- United States Department of Agriculture, Healthy Processed Foods Research Unit, Agricultural Research Service, Albany, CA, 94710, USA.
| | - Christina C Tam
- United States Department of Agriculture, Foodborne Toxins Detection and Prevention Research Unit, Agricultural Research Service, Albany, California, 94710, USA
| | - Luisa W Cheng
- United States Department of Agriculture, Foodborne Toxins Detection and Prevention Research Unit, Agricultural Research Service, Albany, California, 94710, USA
| | - Kirkwood M Land
- Department of Biological Sciences, University of the Pacific, Stockton, CA, 95211, USA
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Kanger K, Guilford NGH, Lee H, Nesbø CL, Truu J, Edwards EA. Antibiotic resistome and microbial community structure during anaerobic co-digestion of food waste, paper and cardboard. FEMS Microbiol Ecol 2020; 96:5700280. [PMID: 31922542 DOI: 10.1093/femsec/fiaa006] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 01/09/2020] [Indexed: 11/13/2022] Open
Abstract
Solid organic waste is a significant source of antibiotic resistance genes (ARGs) and effective treatment strategies are urgently required to limit the spread of antimicrobial resistance. Here, we studied ARG diversity and abundance as well as the relationship between antibiotic resistome and microbial community structure within a lab-scale solid-state anaerobic digester treating a mixture of food waste, paper and cardboard. A total of 10 samples from digester feed and digestion products were collected for microbial community analysis including small subunit rRNA gene sequencing, total community metagenome sequencing and high-throughput quantitative PCR. We observed a significant shift in microbial community composition and a reduction in ARG diversity and abundance after 6 weeks of digestion. ARGs were identified in all samples with multidrug resistance being the most abundant ARG type. Thirty-two per cent of ARGs detected in digester feed were located on plasmids indicating potential for horizontal gene transfer. Using metagenomic assembly and binning, we detected potential bacterial hosts of ARGs in digester feed, which included Erwinia, Bifidobacteriaceae, Lactococcus lactis and Lactobacillus. Our results indicate that the process of sequential solid-state anaerobic digestion of food waste, paper and cardboard tested herein provides a significant reduction in the relative abundance of ARGs per 16S rRNA gene.
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Affiliation(s)
- Kärt Kanger
- Faculty of Science and Technology, University of Tartu, Vanemuise 46, 51003 Tartu, Estonia
| | - Nigel G H Guilford
- BioZone Centre for Applied Biosciences and Bioengineering, Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, ON M5S 3E5, Canada
| | - HyunWoo Lee
- BioZone Centre for Applied Biosciences and Bioengineering, Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, ON M5S 3E5, Canada
| | - Camilla L Nesbø
- BioZone Centre for Applied Biosciences and Bioengineering, Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, ON M5S 3E5, Canada.,Department of Biological Sciences, University of Alberta, 11455 Saskatchewan Drive, Edmonton, AB T6G 2E9, Canada
| | - Jaak Truu
- Faculty of Science and Technology, University of Tartu, Vanemuise 46, 51003 Tartu, Estonia
| | - Elizabeth A Edwards
- BioZone Centre for Applied Biosciences and Bioengineering, Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, ON M5S 3E5, Canada
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Kayira TM, Nakano H. Antibacterial effects of plant extracts with hurdle technology against Vibrio cholerae. FEMS Microbiol Lett 2020; 367:5872481. [PMID: 32672823 DOI: 10.1093/femsle/fnaa119] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 07/14/2020] [Indexed: 12/29/2022] Open
Abstract
Vibrio cholerae is an etiological cause of cholera implicated in several pandemics. Antibacterial activity of plant extracts has been established. However, these extracts exhibit activity at a concentration that may alter organoleptic attributes of water and food, hence limiting their application. In this light, there is need to device ways of reducing plant extracts' effective levels in order to widen their application. Thus, this study was conducted to improve activities of plant ethanolic extracts through combination with other generally recognized as safe antimicrobials. Combination of plant extracts with sodium acetate (NaOAc) 0.4% at pH 7.0 reduced minimum inhibitory concentrations (MICs) of clove, lemon eucalyptus, rosemary and sage from 0.2 to 0.025%. At pH 6.4, combinations were more effective reducing MICs of clove, lemon eucalyptus, rosemary and sage from 0.2 to 0.0125% with NaOAc at 0.2%. At pH 7.0, the combination resulted in additive effect. Nevertheless, at pH 6.4, synergic effect was established. No interactive effect was observed with combinations involving glycine. Combination of plant extracts with NaOAc at mildly acidic pH creates a hurdle effect that may have potential application to control the growth of V. cholerae.
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Affiliation(s)
- Tabitha Mlowoka Kayira
- Laboratory of Food Microbiology and Hygiene, Graduate School of Biosphere Science, Hiroshima University, 1-4-4 Kagamiyama, Higashi-Hiroshima, Japan 739-8528.,The Polytechnic, Physics and Biochemical Sciences Department, University of Malawi, P/bag, 303, Chichiri Blantyre 3, Malawi
| | - Hiroyuki Nakano
- Laboratory of Food Microbiology and Hygiene, Graduate School of Biosphere Science, Hiroshima University, 1-4-4 Kagamiyama, Higashi-Hiroshima, Japan 739-8528
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Iwu CD, Korsten L, Okoh AI. The incidence of antibiotic resistance within and beyond the agricultural ecosystem: A concern for public health. Microbiologyopen 2020; 9:e1035. [PMID: 32710495 PMCID: PMC7520999 DOI: 10.1002/mbo3.1035] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 03/09/2020] [Accepted: 03/09/2020] [Indexed: 12/18/2022] Open
Abstract
The agricultural ecosystem creates a platform for the development and dissemination of antimicrobial resistance, which is promoted by the indiscriminate use of antibiotics in the veterinary, agricultural, and medical sectors. This results in the selective pressure for the intrinsic and extrinsic development of the antimicrobial resistance phenomenon, especially within the aquaculture‐animal‐manure‐soil‐water‐plant nexus. The existence of antimicrobial resistance in the environment has been well documented in the literature. However, the possible transmission routes of antimicrobial agents, their resistance genes, and naturally selected antibiotic‐resistant bacteria within and between the various niches of the agricultural environment and humans remain poorly understood. This study, therefore, outlines an overview of the discovery and development of commonly used antibiotics; the timeline of resistance development; transmission routes of antimicrobial resistance in the agro‐ecosystem; detection methods of environmental antimicrobial resistance determinants; factors involved in the evolution and transmission of antibiotic resistance in the environment and the agro‐ecosystem; and possible ways to curtail the menace of antimicrobial resistance.
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Affiliation(s)
- Chidozie D Iwu
- SAMRC Microbial Water Quality Monitoring Centre, University of Fort Hare, Alice, South Africa.,Applied and Environmental Microbiology Research Group, Department of Biochemistry and Microbiology, University of Fort Hare, Alice, South Africa
| | - Lise Korsten
- Department of Plant and Soil Sciences, Faculty of Natural and Agricultural Sciences, University of Pretoria, Pretoria, South Africa
| | - Anthony I Okoh
- SAMRC Microbial Water Quality Monitoring Centre, University of Fort Hare, Alice, South Africa.,Applied and Environmental Microbiology Research Group, Department of Biochemistry and Microbiology, University of Fort Hare, Alice, South Africa
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36
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Mele E. Electrospinning of Essential Oils. Polymers (Basel) 2020; 12:E908. [PMID: 32295167 PMCID: PMC7240577 DOI: 10.3390/polym12040908] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 04/10/2020] [Accepted: 04/12/2020] [Indexed: 01/13/2023] Open
Abstract
The extensive and sometimes unregulated use of synthetic chemicals, such as drugs, preservatives, and pesticides, is posing big threats to global health, the environment, and food security. This has stimulated the research of new strategies to deal with bacterial infections in animals and humans and to eradicate pests. Plant extracts, particularly essential oils, have recently emerged as valid alternatives to synthetic drugs, due to their properties which include antibacterial, antifungal, anti-inflammatory, antioxidant, and insecticidal activity. This review discusses the current research on the use of electrospinning to encapsulate essential oils into polymeric nanofibres and achieve controlled release of these bioactive compounds, while protecting them from degradation. The works here analysed demonstrate that the electrospinning process is an effective strategy to preserve the properties of essential oils and create bioactive membranes for biomedical, pharmaceutical, and food packaging applications.
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Affiliation(s)
- Elisa Mele
- Materials Department, Loughborough University, Epinal Way, Loughborough LE11 3TU, UK
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Klančnik A, Šimunović K, Kovac J, Sahin O, Wu Z, Vučković D, Abram M, Zhang Q, Smole Možina S. The Anti- Campylobacter Activity and Mechanisms of Pinocembrin Action. Microorganisms 2019; 7:E675. [PMID: 31835624 PMCID: PMC6955772 DOI: 10.3390/microorganisms7120675] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2019] [Revised: 12/05/2019] [Accepted: 12/07/2019] [Indexed: 11/11/2022] Open
Abstract
We investigated the anti-Campylobacter activity of pinocembrin and its mechanism of action, as well as Campylobacter responses to pinocembrin treatment at the genetic and phenotypic levels, using C. jejuni NCTC 11168 and a multidrug efflux system repressor mutant (11168ΔcmeR). At its minimal inhibitory concentration, pinocembrin significantly increased cell membrane permeability of Campylobacter. Interestingly, at sub-inhibitory concentrations, pinocembrin did not significantly alter membrane functionality and it increased bacterial fitness. Treatment with pinocembrin evoked decreased expression of ribosomal proteins and down-regulation of several NADH dehydrogenase I chain subunits and proteins involved in iron uptake. This suggests altered protein production and redox cycle and iron metabolism. Interestingly, the chelation of Fe ions during the treatment with pinocembrin increased C. jejuni survival, although there was no increase in the formation of reactive oxygen species. Pre-treatment of C. jejuni with sub-inhibitory concentrations of pinocembrin for 2 h resulted in a 1 log decrease in C. jejuni colony forming units in mice liver at 8 days post-infection, compared to untreated C. jejuni. These findings suggest that pinocembrin modulates the metabolic activity of C. jejuni and that pre-treatment of C. jejuni with pinocembrin influences its virulence potential in mice. This anti-Campylobacter potential of pinocembrin warrants further investigation.
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Affiliation(s)
- Anja Klančnik
- Department of Food Science and Technology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, SI-1000 Ljubljana, Slovenia; (K.Š.); (J.K.); (S.S.M.)
| | - Katarina Šimunović
- Department of Food Science and Technology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, SI-1000 Ljubljana, Slovenia; (K.Š.); (J.K.); (S.S.M.)
| | - Jasna Kovac
- Department of Food Science and Technology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, SI-1000 Ljubljana, Slovenia; (K.Š.); (J.K.); (S.S.M.)
- Department of Food Science, The Pennsylvania State University, University Park, PA 16802, USA
| | - Orhan Sahin
- Department of Veterinary Microbiology and Preventive Medicine, College of Veterinary Medicine, Iowa State University, Ames, IA 50011, USA; (O.S.); (Z.W.); (Q.Z.)
| | - Zuowei Wu
- Department of Veterinary Microbiology and Preventive Medicine, College of Veterinary Medicine, Iowa State University, Ames, IA 50011, USA; (O.S.); (Z.W.); (Q.Z.)
| | - Darinka Vučković
- Department of Microbiology, Faculty of Medicine, University of Rijeka, Braće Branchetta 20, 51000 Rijeka, Croatia; (D.V.); (M.A.)
| | - Maja Abram
- Department of Microbiology, Faculty of Medicine, University of Rijeka, Braće Branchetta 20, 51000 Rijeka, Croatia; (D.V.); (M.A.)
| | - Qijing Zhang
- Department of Veterinary Microbiology and Preventive Medicine, College of Veterinary Medicine, Iowa State University, Ames, IA 50011, USA; (O.S.); (Z.W.); (Q.Z.)
| | - Sonja Smole Možina
- Department of Food Science and Technology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, SI-1000 Ljubljana, Slovenia; (K.Š.); (J.K.); (S.S.M.)
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Sakarikou C, Kostoglou D, Simões M, Giaouris E. Exploitation of plant extracts and phytochemicals against resistant Salmonella spp. in biofilms. Food Res Int 2019; 128:108806. [PMID: 31955766 DOI: 10.1016/j.foodres.2019.108806] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 11/03/2019] [Accepted: 11/04/2019] [Indexed: 12/27/2022]
Abstract
Salmonella is one of the most frequent causes of foodborne outbreaks throughout the world. In the last years, the resistance of this and other pathogenic bacteria to antimicrobials has become a prime concern towards their successful control. In addition, the tolerance and virulence of pathogenic bacteria, such as Salmonella, are commonly related to their ability to form biofilms, which are sessile structures encountered on various surfaces and whose development is considered as a universal stress response mechanism. Indeed, the ability of Salmonella to form a biofilm seems to significantly contribute to its persistence in food production areas and clinical settings. Plant extracts and phytochemicals appear as promising sources of novel antimicrobials due to their cost-effectiveness, eco-friendliness, great structural diversity, and lower possibility of antimicrobial resistance development in comparison to synthetic chemicals. Research on these agents mainly attributes their antimicrobial activity to a diverse array of secondary metabolites. Bacterial cells are usually killed by the rupture of their cell envelope and in parallel the disruption of their energy metabolism when treated with such molecules, while their use at sub-inhibitory concentrations may also disrupt intracellular communication. The purpose of this article is to review the current available knowledge related to antimicrobial resistance of Salmonella in biofilms, together with the antibiofilm properties of plant extracts and phytochemicals against these detrimental bacteria towards their future application to control these in food production and clinical environments.
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Affiliation(s)
- Christina Sakarikou
- Department of Food Science and Nutrition, School of the Environment, University of the Aegean, Ierou Lochou 10 and Makrygianni, GR-81 400 Myrina, Lemnos, Greece.
| | - Dimitra Kostoglou
- Department of Food Science and Nutrition, School of the Environment, University of the Aegean, Ierou Lochou 10 and Makrygianni, GR-81 400 Myrina, Lemnos, Greece
| | - Manuel Simões
- LEPABE, Department of Chemical Engineering, Faculty of Engineering, University of Porto,Rua Dr. Roberto Frias, s/n, 4200-465 Porto, Portugal
| | - Efstathios Giaouris
- Department of Food Science and Nutrition, School of the Environment, University of the Aegean, Ierou Lochou 10 and Makrygianni, GR-81 400 Myrina, Lemnos, Greece
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Peris-Vicente J, García-Ferrer D, Mishra P, Albiol-Chiva J, Durgbanshi A, Carda-Broch S, Bose D, Esteve-Romero J. Procedure for the Screening of Eggs and Egg Products to Detect Oxolonic Acid, Ciprofloxacin, Enrofloxacin, and Sarafloxacin Using Micellar Liquid Chromatography. Antibiotics (Basel) 2019; 8:antibiotics8040226. [PMID: 31731615 PMCID: PMC6963619 DOI: 10.3390/antibiotics8040226] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 11/05/2019] [Accepted: 11/12/2019] [Indexed: 02/01/2023] Open
Abstract
A method based on micellar liquid chromatography was developed to determine oxolinic acid, ciprofloxacin, enrofloxacin, and sarafloxacin in eggs and egg products. The antimicrobial drugs were obtained in a micellar solution which was directly injected. The analytes were resolved using a C18 column and a mobile phase of 0.05 M sodium dodecyl sulfate—7.5% 1-propanol—0.5% triethylamine, buffered at pH 3 with phosphate salt, running under the isocratic mode. The signal was monitored by fluorescence. Validation was successfully performed according to the EU Commission Decision 2002/657/EC in terms of specificity, calibration range (LOQ to 1 mg/kg), linearity (R2 > 0.9991), limit of detection and decision limit (0.01–0.05 mg/kg), limit of quantification (0.025–0.150 mg/kg), detection capability (<0.4 times decision limit), trueness (−14.2% to +9.8%), precision (<14.0%), robustness, and stability. The procedure was environmentally friendly, safe, easy-to-conduct, inexpensive, and had a high sample throughput, thus it is useful for routine analysis as a screening method in a laboratory for food residue control.
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Affiliation(s)
- Juan Peris-Vicente
- Department of Analytical Chemistry, Faculty of Chemistry, Universitat de València, 46100 Burjassot, Spain; (J.P.-V.); (D.G.-F.)
| | - Daniel García-Ferrer
- Department of Analytical Chemistry, Faculty of Chemistry, Universitat de València, 46100 Burjassot, Spain; (J.P.-V.); (D.G.-F.)
- Laboratory of Clinical Analysis, General University Hospital of de Castelló, 12004 Castelló, Spain
| | - Pooja Mishra
- Department of Chemistry, Doctor Harisingh Gour Vishwavidyalaya (A Central University), Madhya Pradesh 470003, India; (P.M.); (A.D.)
| | - Jaume Albiol-Chiva
- Bioanalytical Chemistrya, Department of Physical and Analytical Chemistrya, ESTCE, Universitat Jaume I, 12071 Castelló, Spain; (J.A.-C.); (S.C.-B.)
| | - Abhilasha Durgbanshi
- Department of Chemistry, Doctor Harisingh Gour Vishwavidyalaya (A Central University), Madhya Pradesh 470003, India; (P.M.); (A.D.)
| | - Samuel Carda-Broch
- Bioanalytical Chemistrya, Department of Physical and Analytical Chemistrya, ESTCE, Universitat Jaume I, 12071 Castelló, Spain; (J.A.-C.); (S.C.-B.)
| | - Devasish Bose
- Department of Criminology and Forensic Science, Doctor Harisingh Gour Vishwavidyalaya (A Central University), Madhya Pradesh 470003, India;
| | - Josep Esteve-Romero
- Bioanalytical Chemistrya, Department of Physical and Analytical Chemistrya, ESTCE, Universitat Jaume I, 12071 Castelló, Spain; (J.A.-C.); (S.C.-B.)
- Correspondence:
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Giménez-Rota C, Lorán S, Mainar AM, Hernáiz MJ, Rota C. Supercritical Carbon Dioxide Antisolvent Fractionation for the Sustainable Concentration of Lavandula luisieri (Rozeira) Riv.- Mart Antimicrobial and Antioxidant Compounds and Comparison with Its Conventional Extracts. PLANTS 2019; 8:plants8110455. [PMID: 31717810 PMCID: PMC6918246 DOI: 10.3390/plants8110455] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 10/22/2019] [Accepted: 10/23/2019] [Indexed: 01/05/2023]
Abstract
Lavandula stoechas subsp. luisieri is a Spanish subspecies from the Lamiaceae family. Its essential oil has been traditionally used for several medical applications though little is known about other extracts. Similar to many other studies aiming to obtain traditional plant extracts to be used in different applications, this work evaluated the antioxidant and antimicrobial activities of Lavandula luisieri extracts and the correlation with their composition. Traditional hydrodistillation and ethanolic maceration were used to obtain the essential oil and the maceration extract, respectively. A green and sustainable methodology was applied to the maceration extract that was under a Supercritical Antisolvent Fractionation process to obtain a fine solid enriched in rosmarinic acid and the terpenes oleanolic and ursolic acids. Antimicrobial activities of all extracts and pure identified compounds (rosmarinic and ursolic acids) were evaluated against five bacterial strains; Listeria monocytogenes, Enterococcus faecium, Staphylococcus aureus, Salmonella Typhimurium and Escherichia coli and were compared with the pure compounds identified, rosmarinic and ursolic acids. All strains were sensitive against L. luisieri essential oil. The solid product obtained from the supercritical process was concentrated in the identified actives compared to the maceration extract, which resulted in higher antimicrobial and DPPH scavenging activities. The supercritical sustainable process provided L. luisieri compounds, with retention of their antimicrobial and antioxidant activities, in a powder exemptof organic solvents with potential application in the clinical, food or cosmetic fields.
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Affiliation(s)
- Carlota Giménez-Rota
- GATHERS Group, Aragón Institute of Engineering Research (I3A), University of Zaragoza, c/. Mariano Esquillor s/n, 50018 Zaragoza, Spain; (C.G.-R.); (A.M.M.)
- Chemistry in Pharmaceutical Science Department, Pharmacy Faculty, Complutense University of Madrid, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain;
| | - Susana Lorán
- Department of Animal Production and Food Science, AgriFood Institute of Aragon (IA2), University of Zaragoza-CITA, Veterinary Faculty, University of Zaragoza, Miguel Servet 177, 50013 Zaragoza, Spain;
- Correspondence: ; Tel.: +34-876-554-143
| | - Ana M. Mainar
- GATHERS Group, Aragón Institute of Engineering Research (I3A), University of Zaragoza, c/. Mariano Esquillor s/n, 50018 Zaragoza, Spain; (C.G.-R.); (A.M.M.)
| | - María J. Hernáiz
- Chemistry in Pharmaceutical Science Department, Pharmacy Faculty, Complutense University of Madrid, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain;
| | - Carmen Rota
- Department of Animal Production and Food Science, AgriFood Institute of Aragon (IA2), University of Zaragoza-CITA, Veterinary Faculty, University of Zaragoza, Miguel Servet 177, 50013 Zaragoza, Spain;
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Li Y, Peng N. Endogenous CRISPR-Cas System-Based Genome Editing and Antimicrobials: Review and Prospects. Front Microbiol 2019; 10:2471. [PMID: 31708910 PMCID: PMC6824031 DOI: 10.3389/fmicb.2019.02471] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Accepted: 10/15/2019] [Indexed: 12/17/2022] Open
Abstract
CRISPR-Cas systems adapt “memories” via spacers from viruses and plasmids to develop adaptive immunity against mobile genetic elements. Mature CRISPR RNAs guide CRISPR-associated nucleases to site-specifically cleave target DNA or RNA, providing an efficient genome engineering tool for organisms of all three kingdoms. Cas9, Cas12, and Cas13 are single proteins with multiple domains that are the most widely used CRISPR nucleases of the Class 2 system. However, these CRISPR endonucleases are large in size, leading to difficulty for manipulation and toxicity for cells. Most archaeal genomes and half of the bacterial genomes encode different types of CRISPR-Cas systems. Therefore, developing endogenous CRISPR-Cas systems-based genome editing will simplify manipulations and increase editing efficiency in prokaryotic cells. Here, we review the current applications and discuss the prospects of using endogenous CRISPR nucleases for genome engineering and CRISPR-based antimicrobials.
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Affiliation(s)
- Yingjun Li
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Nan Peng
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, China
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Long QS, Liu LW, Zhao YL, Wang PY, Chen B, Li Z, Yang S. Fabrication of Furan-Functionalized Quinazoline Hybrids: Their Antibacterial Evaluation, Quantitative Proteomics, and Induced Phytopathogen Morphological Variation Studies. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:11005-11017. [PMID: 31532657 DOI: 10.1021/acs.jafc.9b03419] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The limited number of agrochemicals targeting plant bacterial diseases has driven us to develop highly efficient, low-cost, and versatile antibacterial alternatives. Herein, a novel type of simple furan-functionalized quinazolin-4-amines was systematically fabricated and screened for their antibacterial activity. Bioassay results revealed that compounds C1 and E4 could substantially block the growth of two frequently mentioned pathogens Xanthomonas oryzae pv oryzae and X. axonopodis pv citri in vitro, displaying appreciable EC50 values of 7.13 and 10.3 mg/L, respectively. This effect was prominently improved by comparing those of mainly used agrochemicals. An in vivo experiment against bacterial blight further illustrated their viable applications as antimicrobial ingredients. Quantitative proteomics demonstrated that C1 possessed a remarkable ability to manipulate the upregulation and downregulation of expressed proteins, which probably involved d-glucose and biotin metabolic pathways. This finding was substantially verified by parallel reaction monitoring analysis. Scanning electron microscopy images and fluorescence spectra also indicated that the designed compounds had versatile capacities for destroying the integrity of bacteria. Given these remarkable characteristics, furan-functionalized quinazoline hybrids can serve as a viable platform for developing innovative antibiotic alternatives against bacterial infections.
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Affiliation(s)
- Qing-Su Long
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education , Center for R&D of Fine Chemicals of Guizhou University , Guiyang 550025 , China
| | - Li-Wei Liu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education , Center for R&D of Fine Chemicals of Guizhou University , Guiyang 550025 , China
| | - Yong-Liang Zhao
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education , Center for R&D of Fine Chemicals of Guizhou University , Guiyang 550025 , China
| | - Pei-Yi Wang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education , Center for R&D of Fine Chemicals of Guizhou University , Guiyang 550025 , China
| | - Biao Chen
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education , Center for R&D of Fine Chemicals of Guizhou University , Guiyang 550025 , China
| | - Zhong Li
- College of Pharmacy , East China University of Science & Technology , Shanghai 200237 , China
| | - Song Yang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education , Center for R&D of Fine Chemicals of Guizhou University , Guiyang 550025 , China
- College of Pharmacy , East China University of Science & Technology , Shanghai 200237 , China
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Rodríguez-González V, Terashima C, Fujishima A. Applications of photocatalytic titanium dioxide-based nanomaterials in sustainable agriculture. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2019. [DOI: 10.1016/j.jphotochemrev.2019.06.001] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Gkanatsiou C, Karamanoli Κ, Menkissoglu-Spiroudi U, Dendrinou-Samara C. Composition effect of Cu-based nanoparticles on phytopathogenic bacteria. Antibacterial studies and phytotoxicity evaluation. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.06.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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45
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Yu P, Yu S, Wang J, Guo H, Zhang Y, Liao X, Zhang J, Wu S, Gu Q, Xue L, Zeng H, Pang R, Lei T, Zhang J, Wu Q, Ding Y. Bacillus cereus Isolated From Vegetables in China: Incidence, Genetic Diversity, Virulence Genes, and Antimicrobial Resistance. Front Microbiol 2019; 10:948. [PMID: 31156567 PMCID: PMC6530634 DOI: 10.3389/fmicb.2019.00948] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2019] [Accepted: 04/15/2019] [Indexed: 12/24/2022] Open
Abstract
Bacillus cereus is a food-borne opportunistic pathogen that can induce diarrheal and emetic symptoms. It is widely distributed in different environments and can be found in various foods, including fresh vegetables. As their popularity grows worldwide, the risk of bacterial contamination in fresh vegetables should be fully evaluated, particularly in vegetables that are consumed raw or processed minimally, which are not commonly sterilized by enough heat treatment. Thereby, it is necessary to perform potential risk evaluation of B. cereus in vegetables. In this study, 294 B. cereus strains were isolated from vegetables in different cities in China to analyze incidence, genetic polymorphism, presence of virulence genes, and antimicrobial resistance. B. cereus was detected in 50% of all the samples, and 21/211 (9.95%) of all the samples had contamination levels of more than 1,100 MPN/g. Virulence gene detection revealed that 95 and 82% of the isolates harbored nheABC and hblACD gene clusters, respectively. Additionally, 87% of the isolates harbored cytK gene, and 3% of the isolates possessed cesB. Most strains were resistant to rifampicin and β-lactam antimicrobials but were sensitive to imipenem, gentamicin, ciprofloxacin, kanamycin, telithromycin, ciprofloxacin, and chloramphenicol. In addition, more than 95.6% of the isolates displayed resistance to three kinds of antibiotics. Based on multilocus sequence typing, all strains were classified into 210 different sequence types (STs), of which 145 isolates were assigned to 137 new STs. The most prevalent ST was ST770, but it included only eight isolates. Taken together, our research provides the first reference for the incidence and characteristics of B. cereus in vegetables collected throughout China, indicating a potential hazard of B. cereus when consuming vegetables without proper handling.
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Affiliation(s)
- Pengfei Yu
- Department of Food Science and Technology, Institute of Food Safety and Nutrition, Jinan University, Guangzhou, China.,State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Open Laboratory of Applied Microbiology, Guangdong Institute of Microbiology, Guangzhou, China
| | - Shubo Yu
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Open Laboratory of Applied Microbiology, Guangdong Institute of Microbiology, Guangzhou, China
| | - Juan Wang
- College of Food Science, South China Agricultural University, Guangzhou, China
| | - Hui Guo
- Department of Food Science and Technology, Institute of Food Safety and Nutrition, Jinan University, Guangzhou, China.,State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Open Laboratory of Applied Microbiology, Guangdong Institute of Microbiology, Guangzhou, China
| | - Ying Zhang
- Department of Food Science and Technology, Institute of Food Safety and Nutrition, Jinan University, Guangzhou, China.,State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Open Laboratory of Applied Microbiology, Guangdong Institute of Microbiology, Guangzhou, China
| | - Xiyu Liao
- Department of Food Science and Technology, Institute of Food Safety and Nutrition, Jinan University, Guangzhou, China.,State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Open Laboratory of Applied Microbiology, Guangdong Institute of Microbiology, Guangzhou, China
| | - Junhui Zhang
- Department of Food Science and Technology, Institute of Food Safety and Nutrition, Jinan University, Guangzhou, China.,State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Open Laboratory of Applied Microbiology, Guangdong Institute of Microbiology, Guangzhou, China
| | - Shi Wu
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Open Laboratory of Applied Microbiology, Guangdong Institute of Microbiology, Guangzhou, China
| | - Qihui Gu
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Open Laboratory of Applied Microbiology, Guangdong Institute of Microbiology, Guangzhou, China
| | - Liang Xue
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Open Laboratory of Applied Microbiology, Guangdong Institute of Microbiology, Guangzhou, China
| | - Haiyan Zeng
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Open Laboratory of Applied Microbiology, Guangdong Institute of Microbiology, Guangzhou, China
| | - Rui Pang
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Open Laboratory of Applied Microbiology, Guangdong Institute of Microbiology, Guangzhou, China
| | - Tao Lei
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Open Laboratory of Applied Microbiology, Guangdong Institute of Microbiology, Guangzhou, China
| | - Jumei Zhang
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Open Laboratory of Applied Microbiology, Guangdong Institute of Microbiology, Guangzhou, China
| | - Qingping Wu
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Open Laboratory of Applied Microbiology, Guangdong Institute of Microbiology, Guangzhou, China
| | - Yu Ding
- Department of Food Science and Technology, Institute of Food Safety and Nutrition, Jinan University, Guangzhou, China.,State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Open Laboratory of Applied Microbiology, Guangdong Institute of Microbiology, Guangzhou, China
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Danner MC, Robertson A, Behrends V, Reiss J. Antibiotic pollution in surface fresh waters: Occurrence and effects. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 664:793-804. [PMID: 30763859 DOI: 10.1016/j.scitotenv.2019.01.406] [Citation(s) in RCA: 411] [Impact Index Per Article: 82.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 01/25/2019] [Accepted: 01/30/2019] [Indexed: 05/25/2023]
Abstract
Worldwide, antibiotic usage exceeds 100,000 tons per year and there is increasing concern over the fate of these substances. Antibiotics are ubiquitous in the environment and significant concentrations have been detected in fresh waters. In this review, we highlight important aspects of antibiotic pollution in fresh waters: that concentrations of antibiotics in the environment are substantial, that micro-organisms are susceptible to this, that bacteria can evolve resistance in the environment, and that antibiotic pollution affects natural food webs while interacting with other stressors; which taken together poses a number of challenges for environmental scientists. In the literature, we found examples of considerable antibiotic pollution in fresh waters. In the Americas, antibiotic concentrations of up to 15 μg/L have been measured; with higher concentrations reported from European and African studies (over 10 μg/L and 50 μg/L respectively), and in Asian-pacific countries concentrations over 450 μg/L have been detected. While these concentrations might not be deemed harmful to humans, non-target freshwater organisms could be affected by them. Bioassays show that some of the antibiotics found in surface waters affect microbes at concentrations below 10 μg/L. Among the most potent antibiotics are those that prevail in streams and rivers in these concentrations, such as ciprofloxacin. Sub-lethal concentrations might not kill prokaryotes but contribute to increased bacterial resistance and change the composition of single-celled communities, as demonstrated in laboratory experiments. This has implications for the microbial food web (e.g. interactions among and between bacteria and their protozoan consumers) and by extension, larger organisms and ecosystem health. The fact that the effects of antibiotics are extremely context-dependent represents a challenge, particularly for in vitro research. We suggest future research avenues, taking into account food web experiments, antibiotics interacting with one another (and other stressors) and discuss how these can help to answer multi-layered research questions.
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Affiliation(s)
- Marie-Claire Danner
- Department of Life Sciences, Whitelands College, Roehampton University, London SW15 4JD, United Kingdom.
| | - Anne Robertson
- Department of Life Sciences, Whitelands College, Roehampton University, London SW15 4JD, United Kingdom
| | - Volker Behrends
- Department of Life Sciences, Whitelands College, Roehampton University, London SW15 4JD, United Kingdom
| | - Julia Reiss
- Department of Life Sciences, Whitelands College, Roehampton University, London SW15 4JD, United Kingdom
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Lan C, Yin D, Yang Z, Zhao W, Chen Y, Zhang W, Zhang S. Determination of Six Macrolide Antibiotics in Chicken Sample by Liquid Chromatography-Tandem Mass Spectrometry Based on Solid Phase Extraction. JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY 2019; 2019:6849457. [PMID: 30918741 PMCID: PMC6409056 DOI: 10.1155/2019/6849457] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Accepted: 01/17/2019] [Indexed: 06/09/2023]
Abstract
In this paper, a simple and effective method for the determination of six macrolide antibiotics (MACs), including tylosin, tilmicosin, azithromycin, clarithromycin, roxithromycin, and kitasamycin, in the chicken sample using liquid chromatography-tandem mass spectrometry (LC-MS/MS) was developed based on a self-built porous aromatic framework- (PAF-) based solid phase sorbent. The main parameters influencing the extraction efficiency, such as sorbent amounts, type of the eluent, pH of the sample, and the eluent volume, were evaluated. Under the optimized condition, the limits of detection were from 0.2 to 0.5 μg·kg-1. The recoveries of the method ranged from 82.1% to 101.4% with the relative standard deviations less than 11.1%. All the results demonstrated that the established method is potential for the determination of macrolide antibiotics in food safety analysis and monitoring.
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Affiliation(s)
- Chen Lan
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, China
| | - Dan Yin
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, China
| | - Zhicong Yang
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, China
| | - Wuduo Zhao
- Center for Advanced Analysis and Computational Science, Zhengzhou University, Zhengzhou, China
| | - Yanlong Chen
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, China
| | - Wenfen Zhang
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, China
| | - Shusheng Zhang
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, China
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Cadavid E, Echeverri F. The Search for Natural Inhibitors of Biofilm Formation and the Activity of the Autoinductor C6-AHL in Klebsiella pneumoniae ATCC 13884. Biomolecules 2019; 9:biom9020049. [PMID: 30704099 PMCID: PMC6406709 DOI: 10.3390/biom9020049] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 01/10/2019] [Accepted: 01/11/2019] [Indexed: 12/24/2022] Open
Abstract
Human nosocomial infections are common around the world. One of the main causes is the bacteria Klebsiella pneumoniae, which shows high rates of resistance to antibiotics. Thus, drugs with novel mechanisms of action are needed. In this work, we report the effects of various natural substances on the formation of biofilm in Klebsiella pneumoniae, as well as its stability. The effect of the molecules on the growth of K. pneumoniae was initially determined by measuring the optical density. The modification of the biofilm, the changes relating to its resistance, the effects on the bacterial adhesion to the urethral catheter and its antagonist role the hexanoyl-homoserinelactone were assessed by crystal violet, as well as by microscopy. The best effects were obtained with 3-methyl-2(5H)-furanone and 2´-hydroxycinnamic acid, which inhibited the formation of biofilm by 67.38% and 65.06%, respectively. Additionally, the remaining biofilm formed was more susceptible to gentamicin. Through microscopy examination, there were evident changes in the biofilm and adherence on the polyvinyl chloride (PVC) urethral catheter. Besides, 3-methyl-2(5H)-furanone inhibited the biofilm-forming effect of the autoinducer hexanoyl-homoserinelactone. Thus, these molecules could be developed as supplemental of antibiotics.
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Affiliation(s)
- Elizabeth Cadavid
- Grupo de Química Orgánica de Productos Naturales, Instituto de Química, Universidad de Antioquia, Calle 67 No. 53⁻10, Medellín 050010, Colombia.
| | - Fernando Echeverri
- Grupo de Química Orgánica de Productos Naturales, Instituto de Química, Universidad de Antioquia, Calle 67 No. 53⁻10, Medellín 050010, Colombia.
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49
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Zhao Y, Li H, Wei S, Zhou X, Xiao X. Antimicrobial Effects of Chemical Compounds Isolated from Traditional Chinese Herbal Medicine (TCHM) Against Drug-Resistant Bacteria: A Review Paper. Mini Rev Med Chem 2019; 19:125-137. [PMID: 30332952 DOI: 10.2174/1389557518666181017143141] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Revised: 10/07/2018] [Accepted: 10/09/2018] [Indexed: 01/02/2023]
Abstract
Infectious diseases caused by pathogenic bacteria seriously threaten human lives. Although antibiotic therapy is effective in the treatment of bacterial infections, the overuse of antibiotics has led to an increased risk of antibiotic resistance, putting forward urgent requirements for novel antibacterial drugs. Traditional Chinese herbal medicine (TCHM) and its constituents are considered to be potential sources of new antimicrobial agents. Currently, a series of chemical compounds purified from TCHM have been reported to fight against infections by drug-resistant bacteria. In this review, we summarized the recent findings on TCHM-derived compounds treating drug-resistant bacterial infections. Further studies are still needed for the discovery of potential antibacterial components from TCHM.
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Affiliation(s)
- Yanling Zhao
- Department of Pharmacy, 302 Military Hospital of China, Beijing, 100039, China
| | - Haotian Li
- Department of Pharmacy, 302 Military Hospital of China, Beijing, 100039, China
| | - Shizhang Wei
- Department of Pharmacy, 302 Military Hospital of China, Beijing, 100039, China
| | - Xuelin Zhou
- Department of Pharmacy, 302 Military Hospital of China, Beijing, 100039, China
| | - Xiaohe Xiao
- China Military Institute of Chinese Medicine, 302 Military Hospital of China, Beijing, 100039, China
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Solid-phase microextraction of antibiotics from fish muscle by using MIL-101(Cr)NH2-polyacrylonitrile fiber and their identification by liquid chromatography-tandem mass spectrometry. Anal Chim Acta 2019; 1047:62-70. [DOI: 10.1016/j.aca.2018.09.060] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2018] [Revised: 09/24/2018] [Accepted: 09/26/2018] [Indexed: 12/24/2022]
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