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Javid Moghadam M, Maktabi S, Zarei M, Mahmoodi P. Controlling Staphylococcus aureus biofilm on food contact surfaces: the efficacy of Oliveria decumbens essential oil and its implications on biofilm-related genes. J Appl Microbiol 2024; 135:lxae187. [PMID: 39054303 DOI: 10.1093/jambio/lxae187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 05/29/2024] [Accepted: 07/24/2024] [Indexed: 07/27/2024]
Abstract
AIMS This study aimed to investigate the effect of Oliveria decumbens essential oil (Od-EO) on the phenotypic properties and gene expression of Staphylococcus aureus biofilm on commonly used food contact surfaces. METHODS AND RESULTS The minimum inhibitory concentration and minimum bactericidal concentration of Od-EO on S. aureus ATCC25923 were determined to be 0.5 and 1 µl/ml, respectively. Crystal violet staining, scanning electron microscopy (SEM), biofilm metabolic activity evaluation, and real-time PCR analysis were used to assess the anti-biofilm properties of Od-EO. The results demonstrated that Od-EO exhibited significant anti-biofilm properties against S. aureus and effectively reduced the metabolic activity of biofilm cells. Furthermore, the inhibitory effects of Od-EO on biofilm formation were more pronounced on stainless steel (SS) compared to high-density polyethylene (HDPE) surfaces. Real-time PCR analysis revealed that Od-EO downregulated the expression of biofilm-related genes (icaA, icaD, clfA, clfB, FnbA, FnbB, and hld) in S. aureus grown on SS, while the expression levels of all studied genes except hld in the biofilm formed on HDPE remained unchanged or increased. CONCLUSIONS One of the main anti-biofilm mechanisms of the Od-EO on the HDPE is related to the disturbance in the QS of the cells. These findings highlight the potential of Od-EO as an effective agent for controlling and inhibiting S. aureus biofilm in the food industry and its potential use in disinfectant compounds.
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Affiliation(s)
- Mahshad Javid Moghadam
- Department of Food Hygiene, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz 61355-145, Iran
| | - Siavash Maktabi
- Department of Food Hygiene, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz 61355-145, Iran
| | - Mehdi Zarei
- Department of Food Hygiene, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz 61355-145, Iran
| | - Pezhman Mahmoodi
- Department of Pathobiology, Faculty of Veterinary Science, Bu-Ali Sina University, Hamadan 6517658978, Iran
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Elafify M, Liao X, Feng J, Ahn J, Ding T. Biofilm formation in food industries: Challenges and control strategies for food safety. Food Res Int 2024; 190:114650. [PMID: 38945629 DOI: 10.1016/j.foodres.2024.114650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Revised: 06/13/2024] [Accepted: 06/14/2024] [Indexed: 07/02/2024]
Abstract
Various pathogens have the ability to grow on food matrices and instruments. This grow may reach to form biofilms. Bacterial biofilms are community of microorganisms embedded in extracellular polymeric substances (EPSs) containing lipids, DNA, proteins, and polysaccharides. These EPSs provide a tolerance and favorable living condition for microorganisms. Biofilm formations could not only contribute a risk for food safety but also have negative impacts on healthcare sector. Once biofilms form, they reveal resistances to traditional detergents and disinfectants, leading to cross-contamination. Inhibition of biofilms formation and abolition of mature biofilms is the main target for controlling of biofilm hazards in the food industry. Some novel eco-friendly technologies such as ultrasound, ultraviolet, cold plasma, magnetic nanoparticles, different chemicals additives as vitamins, D-amino acids, enzymes, antimicrobial peptides, and many other inhibitors provide a significant value on biofilm inhibition. These anti-biofilm agents represent promising tools for food industries and researchers to interfere with different phases of biofilms including adherence, quorum sensing molecules, and cell-to-cell communication. This perspective review highlights the biofilm formation mechanisms, issues associated with biofilms, environmental factors influencing bacterial biofilm development, and recent strategies employed to control biofilm-forming bacteria in the food industry. Further studies are still needed to explore the effects of biofilm regulation in food industries and exploit more regulation strategies for improving the quality and decreasing economic losses.
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Affiliation(s)
- Mahmoud Elafify
- Future Food Laboratory, Innovative Center of Yangtze River Delta, Zhejiang University, Jiashan 314100, China; Department of Food Hygiene and Control, Faculty of Veterinary Medicine, Mansoura University, Mansoura 35516, Egypt
| | - Xinyu Liao
- Future Food Laboratory, Innovative Center of Yangtze River Delta, Zhejiang University, Jiashan 314100, China
| | - Jinsong Feng
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Juhee Ahn
- Future Food Laboratory, Innovative Center of Yangtze River Delta, Zhejiang University, Jiashan 314100, China; Department of Biomedical Science, Kangwon National University, Chuncheon, Gangwon 24341, Republic of Korea.
| | - Tian Ding
- Future Food Laboratory, Innovative Center of Yangtze River Delta, Zhejiang University, Jiashan 314100, China; College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, Zhejiang 310058, China.
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Er-Rahmani S, Errabiti B, Matencio A, Trotta F, Latrache H, Koraichi SI, Elabed S. Plant-derived bioactive compounds for the inhibition of biofilm formation: a comprehensive review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:34859-34880. [PMID: 38744766 DOI: 10.1007/s11356-024-33532-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Accepted: 04/27/2024] [Indexed: 05/16/2024]
Abstract
Biofilm formation is a widespread phenomenon that impacts different fields, including the food industry, agriculture, health care and the environment. Accordingly, there is a serious need for new methods of managing the problem of biofilm formation. Natural products have historically been a rich source of varied compounds with a wide variety of biological functions, including antibiofilm agents. In this review, we critically highlight and discuss the recent progress in understanding the antibiofilm effects of several bioactive compounds isolated from different plants, and in elucidating the underlying mechanisms of action and the factors influencing their adhesion. The literature shows that bioactive compounds have promising antibiofilm potential against both Gram-negative and Gram-positive bacterial and fungal strains, via several mechanisms of action, such as suppressing the formation of the polymer matrix, limiting O2 consumption, inhibiting microbial DNA replication, decreasing hydrophobicity of cell surfaces and blocking the quorum sensing network. This antibiofilm activity is influenced by several environmental factors, such as nutritional cues, pH values, O2 availability and temperature. This review demonstrates that several bioactive compounds could mitigate the problem of biofilm production. However, toxicological assessment and pharmacokinetic investigations of these molecules are strongly required to validate their safety.
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Affiliation(s)
- Sara Er-Rahmani
- Laboratory of Microbial Biotechnology and Bioactive Molecules, Faculty of Sciences and Technologies, Sidi Mohamed Ben Abdellah University of Fez, Imouzzer Road, 30000, Fez, Morocco
- Department of Chemistry, Nanomaterials for Industry and Sustainability Centre (NIS Centre), Università Di Torino, 10125, Turin, Italy
| | - Badr Errabiti
- Laboratory of Microbial Biotechnology and Bioactive Molecules, Faculty of Sciences and Technologies, Sidi Mohamed Ben Abdellah University of Fez, Imouzzer Road, 30000, Fez, Morocco
| | - Adrián Matencio
- Department of Chemistry, Nanomaterials for Industry and Sustainability Centre (NIS Centre), Università Di Torino, 10125, Turin, Italy
| | - Francesco Trotta
- Department of Chemistry, Nanomaterials for Industry and Sustainability Centre (NIS Centre), Università Di Torino, 10125, Turin, Italy
| | - Hassan Latrache
- Laboratory of Bioprocesses and Bio-Interfaces, Faculty of Science and Technology, Sultan Moulay Slimane University, 23000, Beni Mellal, Morocco
| | - Saad Ibnsouda Koraichi
- Laboratory of Microbial Biotechnology and Bioactive Molecules, Faculty of Sciences and Technologies, Sidi Mohamed Ben Abdellah University of Fez, Imouzzer Road, 30000, Fez, Morocco
| | - Soumya Elabed
- Laboratory of Microbial Biotechnology and Bioactive Molecules, Faculty of Sciences and Technologies, Sidi Mohamed Ben Abdellah University of Fez, Imouzzer Road, 30000, Fez, Morocco.
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Huang T, Zhang ZY, Qiu ZL, Li L, Liu XX, Wang L, Wang ZY, Li ZP, Xiao GS, Wang W. Effect of Cymbopogon martini (Roxb.) Will.Watson essential oil on antioxidant activity, immune and intestinal barrier-related function, and gut microbiota in pigeons infected by Candida albicans. Front Pharmacol 2024; 15:1380277. [PMID: 38628645 PMCID: PMC11018936 DOI: 10.3389/fphar.2024.1380277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Accepted: 03/18/2024] [Indexed: 04/19/2024] Open
Abstract
Essential oils are potential alternatives to antibiotics for preventing Candida albicans (C. albicans) infection which is responsible for economic losses in the pigeon industry. Cymbopogon martini essential oil (EO) can inhibit pathogens, particularly fungal pathogens but its potential beneficial effects on C. albicans-infected pigeons remain unclear. Therefore, we investigated the impact of C. martini EO on antioxidant activity, immune response, intestinal barrier function, and intestinal microbiota in C. albicans-infected pigeons. The pigeons were divided into four groups as follows: (1) NC group: C. albicans uninfected/C. martini EO untreated group; (2) PC group: C. albicans infected/C. martini EO untreated group; (3) LPA group: C. albicans infected/1% C. martini EO treated group; and (4) HPA group: C. albicans infected/2% C. martini EO treated group. The pigeons were infected with C. albicans from day of age 35 to 41 and treated with C. martini EO from day of age 42 to 44, with samples collected on day of age 45 for analysis. The results demonstrated that C. martini EO prevented the reduction in the antioxidant enzymes SOD and GSH-Px causes by C. albicans challenge in pigeons. Furthermore, C. martini EO could decrease the relative expression of IL-1β, TGF-β, and IL-8 in the ileum, as well as IL-1β and IL-8 in the crop, while increasing the relative expression of Claudin-1 in the ileum and the crop and Occludin in the ileum in infected pigeons. Although the gut microbiota composition was not significantly affected by C. martini EO, 2% C. martini EO increased the abundance of Alistipes and Pedobacter. In conclusion, the application of 2% C. martini EO not only enhanced the level of antioxidant activity and the expression of genes related to intestinal barrier function but also inhibited inflammatory genes in C. albicans-infected pigeons and increased the abundance of gut bacteria that are resistant to C. albicans.
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Affiliation(s)
- Ting Huang
- Zhongkai University of Agriculture and Engineering, Guangzhou, China
| | - Zheng-Yue Zhang
- Zhongkai University of Agriculture and Engineering, Guangzhou, China
| | - Zhi-Lin Qiu
- Zhongkai University of Agriculture and Engineering, Guangzhou, China
| | - Lin Li
- Zhongkai University of Agriculture and Engineering, Guangzhou, China
| | - Xian-Xi Liu
- Zhongkai University of Agriculture and Engineering, Guangzhou, China
| | - Lei Wang
- Zhongkai University of Agriculture and Engineering, Guangzhou, China
| | - Zi-Ying Wang
- Meizhou Jinlv Modern Agriculture Development Co., Ltd., Meizhou, China
| | - Zhi-Peng Li
- Guangdong Baoning Agriculture and Animal Husbandry Technology Co., Ltd., Meizhou, China
| | - Geng-Sheng Xiao
- Zhongkai University of Agriculture and Engineering, Guangzhou, China
| | - Wei Wang
- Zhongkai University of Agriculture and Engineering, Guangzhou, China
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Salvia sclarea Essential Oil Chemical Composition and Biological Activities. Int J Mol Sci 2023; 24:ijms24065179. [PMID: 36982252 PMCID: PMC10049179 DOI: 10.3390/ijms24065179] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Revised: 03/02/2023] [Accepted: 03/06/2023] [Indexed: 03/11/2023] Open
Abstract
Salvia sclarea essential oil (SSEO) has a long tradition in the food, cosmetic, and perfume industries. The present study aimed to analyze the chemical composition of SSEO, its antioxidant activity, antimicrobial activity in vitro and in situ, antibiofilm, and insecticidal activity. Besides that, in this study, we have evaluated the antimicrobial activity of SSEO constituent (E)-caryophyllene and standard antibiotic meropenem. Identification of volatile constituents was performed by using gas chromatography (GC) and gas chromatography/mass spectrometry (GC/MS) techniques. Results obtained indicated that the main constituents of SSEO were linalool acetate (49.1%) and linalool (20.6%), followed by (E)-caryophyllene (5.1%), p-cimene (4.9%), a-terpineol (4.9%), and geranyl acetate (4.4%). Antioxidant activity was determined as low by the means of neutralization of the DDPH radical and ABTS radical cation. The SSEO was able to neutralize the DPPH radical to an extent of 11.76 ± 1.34%, while its ability to decolorize the ABTS radical cation was determined at 29.70 ± 1.45%. Preliminary results of antimicrobial activity were obtained with the disc diffusion method, while further results were obtained by broth microdilution and the vapor phase method. Overall, the results of antimicrobial testing of SSEO, (E)-caryophyllene, and meropenem, were moderate. However, the lowest MIC values, determined in the range of 0.22–0.75 µg/mL for MIC50 and 0.39–0.89 µg/mL for MIC90, were observed for (E)-caryophyllene. The antimicrobial activity of the vapor phase of SSEO (towards microorganisms growing on potato) was significantly stronger than that of the contact application. Biofilm analysis using the MALDI TOF MS Biotyper showed changes in the protein profile of Pseudomonas fluorescens that showed the efficiency of SSEO in inhibiting biofilm formation on stainless-steel and plastic surfaces. The insecticidal potential of SSEO against Oxycarenus lavatera was also demonstrated, and results show that the highest concentration was the most effective, showing insecticidal activity of 66.66%. The results obtained in this study indicate the potential application of SSEO as a biofilm control agent, in the shelf-life extension and storage of potatoes, and as an insecticidal agent.
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Natural Medicine a Promising Candidate in Combating Microbial Biofilm. Antibiotics (Basel) 2023; 12:antibiotics12020299. [PMID: 36830210 PMCID: PMC9952808 DOI: 10.3390/antibiotics12020299] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 01/14/2023] [Accepted: 01/19/2023] [Indexed: 02/05/2023] Open
Abstract
Studies on biofilm-related infections are gaining prominence owing to their involvement in most clinical infections and seriously threatening global public health. A biofilm is a natural form of bacterial growth ubiquitous in ecological niches, considered to be a generic survival mechanism adopted by both pathogenic and non-pathogenic microorganisms and entailing heterogeneous cell development within the matrix. In the ecological niche, quorum sensing is a communication channel that is crucial to developing biofilms. Biofilm formation leads to increased resistance to unfavourable ecological effects, comprising resistance to antibiotics and antimicrobial agents. Biofilms are frequently combated with modern conventional medicines such as antibiotics, but at present, they are considered inadequate for the treatment of multi-drug resistance; therefore, it is vital to discover some new antimicrobial agents that can prevent the production and growth of biofilm, in addition to minimizing the side effects of such therapies. In the search for some alternative and safe therapies, natural plant-derived phytomedicines are gaining popularity among the research community. Phytomedicines are natural agents derived from natural plants. These plant-derived agents may include flavonoids, terpenoids, lectins, alkaloids, polypeptides, polyacetylenes, phenolics, and essential oils. Since they are natural agents, they cause minimal side effects, so could be administered with dose flexibility. It is vital to discover some new antimicrobial agents that can control the production and growth of biofilms. This review summarizes and analyzes the efficacy characteristics and corresponding mechanisms of natural-product-based antibiofilm agents, i.e., phytochemicals, biosurfactants, antimicrobial peptides, and their sources, along with their mechanism, quorum sensing signalling pathways, disrupting extracellular matrix adhesion. The review also provides some other strategies to inhibit biofilm-related illness. The prepared list of newly discovered natural antibiofilm agents could help in devising novel strategies for biofilm-associated infections.
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Mahmoud RY, Trizna EY, Sulaiman RK, Pavelyev RS, Gilfanov IR, Lisovskaya SA, Ostolopovskaya OV, Frolova LL, Kutchin AV, Guseva GB, Antina EV, Berezin MB, Nikitina LE, Kayumov AR. Increasing the Efficacy of Treatment of Staphylococcus aureus- Candida albicans Mixed Infections with Myrtenol. Antibiotics (Basel) 2022; 11:1743. [PMID: 36551400 PMCID: PMC9774912 DOI: 10.3390/antibiotics11121743] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 11/27/2022] [Accepted: 11/28/2022] [Indexed: 12/12/2022] Open
Abstract
Infectious diseases caused by various nosocomial microorganisms affect worldwide both immunocompromised and relatively healthy persons. Bacteria and fungi have different tools to evade antimicrobials, such as hydrolysis damaging the drug, efflux systems, and the formation of biofilm that significantly complicates the treatment of the infection. Here, we show that myrtenol potentiates the antimicrobial and biofilm-preventing activity of conventional drugs against S. aureus and C. albicans mono- and dual-species cultures. In our study, the two optical isomers, (-)-myrtenol and (+)-myrtenol, have been tested as either antibacterials, antifungals, or enhancers of conventional drugs. (+)-Myrtenol demonstrated a synergistic effect with amikacin, fluconazole, and benzalkonium chloride on 64-81% of the clinical isolates of S. aureus and C. albicans, including MRSA and fluconazole-resistant fungi, while (-)-myrtenol increased the properties of amikacin and fluconazole to repress biofilm formation in half of the S. aureus and C. albicans isolates. Furthermore, myrtenol was able to potentiate benzalkonium chloride up to sixteen-fold against planktonic cells in an S. aureus-C. albicans mixed culture and repressed the adhesion of S. aureus. The mechanism of both (-)-myrtenol and (+)-myrtenol synergy with conventional drugs was apparently driven by membrane damage since the treatment with both terpenes led to a significant drop in membrane potential similar to the action of benzalkonium chloride. Thus, due to the low toxicity of myrtenol, it seems to be a promising agent to increase the efficiency of the treatment of infections caused by bacteria and be fungi of the genus Candida as well as mixed fungal-bacterial infections, including resistant strains.
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Affiliation(s)
- Ruba Y. Mahmoud
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia
| | - Elena Y. Trizna
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia
| | - Rand K. Sulaiman
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia
| | - Roman S. Pavelyev
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia
| | - Ilmir R. Gilfanov
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia
- Varnishes and Paints Department, Kazan National Research Technological University, 420015 Kazan, Russia
| | - Svetlana A. Lisovskaya
- Faculty of Medicine and Biology, Kazan State Medical University, 420012 Kazan, Russia
- Scientific Research Institute of Epidemiology and Microbiology, 420015 Kazan, Russia
| | - Olga V. Ostolopovskaya
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia
- Faculty of Medicine and Biology, Kazan State Medical University, 420012 Kazan, Russia
| | - Larisa L. Frolova
- Institute of Chemistry, Federal Research Center “Komi Scientific Centre”, Ural Branch, Russian Academy of Sciences, 167000 Syktyvkar, Russia
| | - Alexander V. Kutchin
- Institute of Chemistry, Federal Research Center “Komi Scientific Centre”, Ural Branch, Russian Academy of Sciences, 167000 Syktyvkar, Russia
| | - Galina B. Guseva
- G.A. Krestov Institute of Solution Chemistry of Russian Academy of Sciences, 153045 Ivanovo, Russia
| | - Elena V. Antina
- G.A. Krestov Institute of Solution Chemistry of Russian Academy of Sciences, 153045 Ivanovo, Russia
| | - Mikhail B. Berezin
- G.A. Krestov Institute of Solution Chemistry of Russian Academy of Sciences, 153045 Ivanovo, Russia
| | - Liliya E. Nikitina
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia
- Faculty of Medicine and Biology, Kazan State Medical University, 420012 Kazan, Russia
| | - Airat R. Kayumov
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia
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Bouaouina S, Aouf A, Touati A, Ali H, Elkhadragy M, Yehia H, Farouk A. Effect of Nanoencapsulation on the Antimicrobial and Antibiofilm Activities of Algerian Origanum glandulosum Desf. against Multidrug-Resistant Clinical Isolates. NANOMATERIALS 2022; 12:nano12152630. [PMID: 35957062 PMCID: PMC9370196 DOI: 10.3390/nano12152630] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Revised: 07/27/2022] [Accepted: 07/27/2022] [Indexed: 02/04/2023]
Abstract
The emergence of multidrug-resistant (MDR) bacteria is a danger to public health and exposes patients to high risk, increasing morbidity and mortality worldwide. For this purpose, three months of evaluation of MDR’s prevalence and antimicrobial susceptibility patterns in the military regional university hospital of Constantine from different services and samples was carried out. Among a total of 196 isolates, 35.2% were MDR. The use of essential oils such as Origanum glandulosum Desf. as an alternative to antibiotics is attractive due to their rich content of bioactive compounds conferring many biological activities. Also, to overcome the drawbacks of using oils as the hydrophobicity and negative interaction with the environmental conditions, in addition to increasing their activity, encapsulation for the oil was performed using high-speed homogenization (HSH) into nanocapsules and high-pressure homogenization (HPH) into nanoemulsion. Nine volatile constituents were determined using gas chromatography-mass spectrometry analysis (GC-MS) in hydrodistilled oil with thymol, carvacrol, p-cymene, and γ-terpinene as dominants. A dramatic decrease in the major volatile components was observed due to the use of HSH and HPH but generated the same oil profile. The mean particle size of the nanoemulsion was 54.24 nm, while that of nanocapsules was 120.60 nm. The antibacterial activity of the oil and its nanoparticles was estimated on MDR isolates using the disk diffusion, aromatogram, and broth microdilution methods. Consistent with the differences in volatile constituents, the oil exhibited a higher antibacterial activity compared to its nanoforms with the diameters of the inhibition zone against E. coli (20 mm), S. aureus (35 mm), and A. baumannii (40 mm). Both formulations have shown relatively significant activity against the biofilm state at sub-inhibitory concentrations, where nanoemulsion was more potent than nanocapsules. The results obtained suggested that nanoformulations of essential oils are strongly recommended for therapeutic application as alternatives to antibiotics.
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Affiliation(s)
- Sarah Bouaouina
- Laboratory of Applied Microbiology, Faculty of Life Sciences and Nature, University of Ferhat Abbas, Setif 19000, Algeria; (S.B.); (A.A.)
| | - Abdelhakim Aouf
- Laboratory of Applied Microbiology, Faculty of Life Sciences and Nature, University of Ferhat Abbas, Setif 19000, Algeria; (S.B.); (A.A.)
| | - Abdelaziz Touati
- Laboratoire d’Ecologie Microbienne, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, Bejaia 06000, Algeria;
| | - Hatem Ali
- Food Technology Department, National Research Center, Cairo 12622, Egypt;
| | - Manal Elkhadragy
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia;
| | - Hany Yehia
- Food Science and Nutrition Department, College of Food and Agriculture Science, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia;
- Food Science and Nutrition Department, Faculty of Home Economics, Helwan University, Helwan P.O. Box 11611, Egypt
| | - Amr Farouk
- Flavour and Aroma Chemistry Department, National Research Centre, Cairo 12622, Egypt
- Correspondence: ; Tel.: +20-1092327777
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An Overview of Biofilm Formation-Combating Strategies and Mechanisms of Action of Antibiofilm Agents. LIFE (BASEL, SWITZERLAND) 2022; 12:life12081110. [PMID: 35892912 PMCID: PMC9394423 DOI: 10.3390/life12081110] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Revised: 07/19/2022] [Accepted: 07/20/2022] [Indexed: 11/19/2022]
Abstract
Biofilm formation on surfaces via microbial colonization causes infections and has become a major health issue globally. The biofilm lifestyle provides resistance to environmental stresses and antimicrobial therapies. Biofilms can cause several chronic conditions, and effective treatment has become a challenge due to increased antimicrobial resistance. Antibiotics available for treating biofilm-associated infections are generally not very effective and require high doses that may cause toxicity in the host. Therefore, it is essential to study and develop efficient anti-biofilm strategies that can significantly reduce the rate of biofilm-associated healthcare problems. In this context, some effective combating strategies with potential anti-biofilm agents, including plant extracts, peptides, enzymes, lantibiotics, chelating agents, biosurfactants, polysaccharides, organic, inorganic, and metal nanoparticles, etc., have been reviewed to overcome biofilm-associated healthcare problems. From their extensive literature survey, it can be concluded that these molecules with considerable structural alterations might be applied to the treatment of biofilm-associated infections, by evaluating their significant delivery to the target site of the host. To design effective anti-biofilm molecules, it must be assured that the minimum inhibitory concentrations of these anti-biofilm compounds can eradicate biofilm-associated infections without causing toxic effects at a significant rate.
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Tsukatani T, Kuroda R, Kawaguchi T. Screening biofilm eradication activity of ethanol extracts from foodstuffs: potent biofilm eradication activity of glabridin, a major flavonoid from licorice (Glycyrrhiza glabra), alone and in combination with ɛ-poly-L-lysine. World J Microbiol Biotechnol 2022; 38:24. [PMID: 34989883 DOI: 10.1007/s11274-021-03206-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Accepted: 12/10/2021] [Indexed: 01/18/2023]
Abstract
The ethanol extracts of 155 different foodstuffs containing medicinal plants were investigated for their biofilm eradication activities against pathogenic bacteria. A combined method of a colorimetric microbial viability assay based on reduction of a tetrazolium salt (WST-8) and a biofilm formation technique on the 96-pins of a microtiter plate lid was used to screen the biofilm eradication activities of foodstuffs. The ethanol extracts of licorice (Glycyrrhiza glabra) showed potent biofilm eradication activities against Streptococcus mutans, Staphylococcus aureus, and Porphyromonas gingivalis. Among the antimicrobial constituents in licorice, glabridin had the most potent eradication activities against microbial biofilms. The minimum biofilm eradication concentration of glabridin was 25-50 μg/ml. Furthermore, the combination of glabridin with ɛ-poly-L-lysine, a food additive, could result in broad biofilm eradication activities towards a wide variety of bacteria associated with infection, including Escherichia coli and Pseudomonas aeruginosa.
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Affiliation(s)
- Tadayuki Tsukatani
- Fukuoka Industrial Technology Center, Biotechnology and Food Research Institute, 1465-5 Aikawamachi, Kurume, 839-0861, Japan.
| | - Rieko Kuroda
- Fukuoka Industrial Technology Center, Biotechnology and Food Research Institute, 1465-5 Aikawamachi, Kurume, 839-0861, Japan
| | - Tomoaki Kawaguchi
- Fukuoka Industrial Technology Center, Biotechnology and Food Research Institute, 1465-5 Aikawamachi, Kurume, 839-0861, Japan
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TABAN BMERCANOGLU, STAVROPOULOU E, WINKELSTRÖTER LKRETLI, BEZIRTZOGLOU E. Value-added effects of using aromatic plants in foods and human therapy. FOOD SCIENCE AND TECHNOLOGY 2021. [DOI: 10.1590/fst.43121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Development and Characterization of Bioactive Polypropylene Films for Food Packaging Applications. Polymers (Basel) 2021; 13:polym13203478. [PMID: 34685237 PMCID: PMC8538041 DOI: 10.3390/polym13203478] [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: 07/19/2021] [Revised: 09/26/2021] [Accepted: 10/06/2021] [Indexed: 11/17/2022] Open
Abstract
Bioactive polypropylene (PP) films with active agents) presence for food packaging application have been prepared and characterized. The novel modified PP films were obtained via PP/additives systems regranulation and cast extrusion. The influence of two types of plasticizers (natural agents as well as commercial synthetic product) and bioactive additives on final features, e.g., mechanical properties, was evaluated. Moreover, the biocidal activity of the films was determined. Due to their functional properties, they are developed as additives to packaging plastic materials such as polyolefins. The study results presented in our work may indirectly contribute to environmental protection by reducing food waste. The aim of the work was to obtain innovative, functional packaging materials with an ability to prolong the shelf life of food products. The best antimicrobial properties were observed for the sample based on 5 wt.% oregano oil (OO) and 5 wt.% cedar oil (OC) in PP matrix. A microbial test revealed that the system causes total reduction in the following microorganisms: B. subtilis, E. coli, S. aureus, P. putida, C. albicans, A. alternata, F. oxysporum.
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14
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Samrot AV, Abubakar Mohamed A, Faradjeva E, Si Jie L, Hooi Sze C, Arif A, Chuan Sean T, Norbert Michael E, Yeok Mun C, Xiao Qi N, Ling Mok P, Kumar SS. Mechanisms and Impact of Biofilms and Targeting of Biofilms Using Bioactive Compounds-A Review. MEDICINA (KAUNAS, LITHUANIA) 2021; 57:839. [PMID: 34441045 PMCID: PMC8401077 DOI: 10.3390/medicina57080839] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 08/10/2021] [Indexed: 12/31/2022]
Abstract
Biofilms comprising aggregates of microorganisms or multicellular communities have been a major issue as they cause resistance against antimicrobial agents and biofouling. To date, numerous biofilm-forming microorganisms have been identified, which have been shown to result in major effects including biofouling and biofilm-related infections. Quorum sensing (which describes the cell communication within biofilms) plays a vital role in the regulation of biofilm formation and its virulence. As such, elucidating the various mechanisms responsible for biofilm resistance (including quorum sensing) will assist in developing strategies to inhibit and control the formation of biofilms in nature. Employing biological control measures (such as the use of bioactive compounds) in targeting biofilms is of great interest since they naturally possess antimicrobial activity among other favorable attributes and can also possibly act as potent antibiofilm agents. As an effort to re-establish the current notion and understanding of biofilms, the present review discuss the stages involved in biofilm formation, the factors contributing to its development, the effects of biofilms in various industries, and the use of various bioactive compounds and their strategies in biofilm inhibition.
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Affiliation(s)
- Antony V. Samrot
- School of Bioscience, Faculty of Medicine, Bioscience and Nursing, MAHSA University, Jenjarom 42610, Selangor, Malaysia; (A.A.M.); (E.F.); (L.S.J.); (C.H.S.); (A.A.); (T.C.S.); (E.N.M.); (C.Y.M.); (N.X.Q.)
| | - Amira Abubakar Mohamed
- School of Bioscience, Faculty of Medicine, Bioscience and Nursing, MAHSA University, Jenjarom 42610, Selangor, Malaysia; (A.A.M.); (E.F.); (L.S.J.); (C.H.S.); (A.A.); (T.C.S.); (E.N.M.); (C.Y.M.); (N.X.Q.)
| | - Etel Faradjeva
- School of Bioscience, Faculty of Medicine, Bioscience and Nursing, MAHSA University, Jenjarom 42610, Selangor, Malaysia; (A.A.M.); (E.F.); (L.S.J.); (C.H.S.); (A.A.); (T.C.S.); (E.N.M.); (C.Y.M.); (N.X.Q.)
| | - Lee Si Jie
- School of Bioscience, Faculty of Medicine, Bioscience and Nursing, MAHSA University, Jenjarom 42610, Selangor, Malaysia; (A.A.M.); (E.F.); (L.S.J.); (C.H.S.); (A.A.); (T.C.S.); (E.N.M.); (C.Y.M.); (N.X.Q.)
| | - Chin Hooi Sze
- School of Bioscience, Faculty of Medicine, Bioscience and Nursing, MAHSA University, Jenjarom 42610, Selangor, Malaysia; (A.A.M.); (E.F.); (L.S.J.); (C.H.S.); (A.A.); (T.C.S.); (E.N.M.); (C.Y.M.); (N.X.Q.)
| | - Akasha Arif
- School of Bioscience, Faculty of Medicine, Bioscience and Nursing, MAHSA University, Jenjarom 42610, Selangor, Malaysia; (A.A.M.); (E.F.); (L.S.J.); (C.H.S.); (A.A.); (T.C.S.); (E.N.M.); (C.Y.M.); (N.X.Q.)
| | - Tan Chuan Sean
- School of Bioscience, Faculty of Medicine, Bioscience and Nursing, MAHSA University, Jenjarom 42610, Selangor, Malaysia; (A.A.M.); (E.F.); (L.S.J.); (C.H.S.); (A.A.); (T.C.S.); (E.N.M.); (C.Y.M.); (N.X.Q.)
| | - Emmanuel Norbert Michael
- School of Bioscience, Faculty of Medicine, Bioscience and Nursing, MAHSA University, Jenjarom 42610, Selangor, Malaysia; (A.A.M.); (E.F.); (L.S.J.); (C.H.S.); (A.A.); (T.C.S.); (E.N.M.); (C.Y.M.); (N.X.Q.)
| | - Chua Yeok Mun
- School of Bioscience, Faculty of Medicine, Bioscience and Nursing, MAHSA University, Jenjarom 42610, Selangor, Malaysia; (A.A.M.); (E.F.); (L.S.J.); (C.H.S.); (A.A.); (T.C.S.); (E.N.M.); (C.Y.M.); (N.X.Q.)
| | - Ng Xiao Qi
- School of Bioscience, Faculty of Medicine, Bioscience and Nursing, MAHSA University, Jenjarom 42610, Selangor, Malaysia; (A.A.M.); (E.F.); (L.S.J.); (C.H.S.); (A.A.); (T.C.S.); (E.N.M.); (C.Y.M.); (N.X.Q.)
| | - Pooi Ling Mok
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia (UPM), Serdang 43400, Selangor, Malaysia
| | - Suresh S. Kumar
- Department of Medical Microbiology and Parasitology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia (UPM), Serdang 43400, Selangor, Malaysia
- Department of Biotechnology, Bharath Institute of Higher Education and Research, Agharam Road Selaiyur, Chennai 600 073, Tamil Nadu, India
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15
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Effects of the Quinone Oxidoreductase WrbA on Escherichia coli Biofilm Formation and Oxidative Stress. Antioxidants (Basel) 2021; 10:antiox10060919. [PMID: 34204135 PMCID: PMC8229589 DOI: 10.3390/antiox10060919] [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: 05/03/2021] [Revised: 05/30/2021] [Accepted: 06/02/2021] [Indexed: 12/31/2022] Open
Abstract
The effects of natural compounds on biofilm formation have been extensively studied, with the goal of identifying biofilm formation antagonists at sub-lethal concentrations. Salicylic and cinnamic acids are some examples of these compounds that interact with the quinone oxidoreductase WrbA, a potential biofilm modulator and an antibiofilm compound biomarker. However, WrbA’s role in biofilm development is still poorly understood. To investigate the key roles of WrbA in biofilm maturation and oxidative stress, Escherichia coli wild-type and ∆wrbA mutant strains were used. Furthermore, we reported the functional validation of WrbA as a molecular target of salicylic and cinnamic acids. The lack of WrbA did not impair planktonic growth, but rather affected the biofilm formation through a mechanism that depends on reactive oxygen species (ROS). The loss of WrbA function resulted in an ROS-sensitive phenotype that showed reductions in biofilm-dwelling cells, biofilm thickness, matrix polysaccharide content, and H2O2 tolerance. Endogenous oxidative events in the mutant strain generated a stressful condition to which the bacterium responded by increasing the catalase activity to compensate for the lack of WrbA. Cinnamic and salicylic acids inhibited the quinone oxidoreductase activity of purified recombinant WrbA. The effects of these antibiofilm molecules on WrbA function was proven for the first time.
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Rossi C, Chaves-López C, Serio A, Casaccia M, Maggio F, Paparella A. Effectiveness and mechanisms of essential oils for biofilm control on food-contact surfaces: An updated review. Crit Rev Food Sci Nutr 2020; 62:2172-2191. [PMID: 33249878 DOI: 10.1080/10408398.2020.1851169] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Microbial biofilms represent a constant source of contamination in the food industry, being also a real threat for human health. In fact, most of biofilm-producing bacteria are becoming resistant to sanitizers, thus arousing the interest in natural alternatives to prevent biofilm formation on foods and food-contact surfaces. In particular, studies on biofilm control by essential oils (EOs) application are increasing, being EOs characterized by unique mixtures of compounds able to impair the mechanisms of biofilm development. This review reports the anti-biofilm properties of EOs in bacterial biofilm control (inhibition, removal and prevention of biofilm dispersion) on food-contact surfaces. The relationship between EOs effect and composition, concentration, involved bacteria, and surfaces is discussed, and the possible sites of action are also elucidated. The findings prove the high biofilm controlling capability of EOs through the regulation of genes and proteins implicated in motility, Quorum Sensing and exopolysaccharides (EPS) matrix. Moreover, incorporation in nanosized delivery systems, formulation of blends and combination of EOs with other strategies can increase their anti-biofilm activity. This review provides an overview of the current knowledge of the EOs effectiveness in controlling bacterial biofilm on food-contact surfaces, providing valuable information for improving EOs use as sanitizers in food industries.
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Affiliation(s)
- Chiara Rossi
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Teramo, TE, Italy
| | - Clemencia Chaves-López
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Teramo, TE, Italy
| | - Annalisa Serio
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Teramo, TE, Italy
| | - Manila Casaccia
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Teramo, TE, Italy
| | - Francesca Maggio
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Teramo, TE, Italy
| | - Antonello Paparella
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Teramo, TE, Italy
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Lapinska B, Szram A, Zarzycka B, Grzegorczyk J, Hardan L, Sokolowski J, Lukomska-Szymanska M. An In Vitro Study on the Antimicrobial Properties of Essential Oil Modified Resin Composite against Oral Pathogens. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E4383. [PMID: 33019681 PMCID: PMC7579242 DOI: 10.3390/ma13194383] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 09/14/2020] [Accepted: 09/28/2020] [Indexed: 12/15/2022]
Abstract
Modifying the composition of dental restorative materials with antimicrobial agents might induce their antibacterial potential against cariogenic bacteria, e.g., S. mutans and L. acidophilus, as well as antifungal effect on C. albicans that are major oral pathogens. Essential oils (EOs) are widely known for antimicrobial activity and are successfully used in dental industry. The study aimed at evaluating antibacterial and antifungal activity of EOs and composite resin material (CR) modified with EO against oral pathogens. Ten EOs (i.e., anise, cinnamon, citronella, clove, geranium, lavender, limette, mint, rosemary thyme) were tested using agar diffusion method. Cinnamon and thyme EOs showed significantly highest antibacterial activity against S. mutans and L. acidophilus among all tested EOs. Anise and limette EOs showed no antibacterial activity against S. mutans. All tested EOs exhibited antifungal activity against C. albicans, whereas cinnamon EO showed significantly highest and limette EO significantly lowest activity. Next, 1, 2 or 5 µL of cinnamon EO was introduced into 2 g of CR and microbiologically tested. The modified CR showed higher antimicrobial activity in comparison to unmodified one. CR containing 2 µL of EO showed the best antimicrobial properties against S. mutans and C. albicans, while CR modified with 1 µL of EO showed the best antimicrobial properties against L. acidophilus.
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Affiliation(s)
- Barbara Lapinska
- Department of General Dentistry, Medical University of Lodz, 92-213 Lodz, Poland; (B.L.); (A.S.); (J.S.)
| | - Aleksandra Szram
- Department of General Dentistry, Medical University of Lodz, 92-213 Lodz, Poland; (B.L.); (A.S.); (J.S.)
| | - Beata Zarzycka
- Department of Microbiology and Laboratory Medical Immunology, Medical University of Lodz, 92-213 Lodz, Poland; (B.Z.); (J.G.)
| | - Janina Grzegorczyk
- Department of Microbiology and Laboratory Medical Immunology, Medical University of Lodz, 92-213 Lodz, Poland; (B.Z.); (J.G.)
| | - Louis Hardan
- Department of Restorative Dentistry, Dental School, Saint Joseph University, 11072180 Beirut, Lebanon;
| | - Jerzy Sokolowski
- Department of General Dentistry, Medical University of Lodz, 92-213 Lodz, Poland; (B.L.); (A.S.); (J.S.)
| | - Monika Lukomska-Szymanska
- Department of General Dentistry, Medical University of Lodz, 92-213 Lodz, Poland; (B.L.); (A.S.); (J.S.)
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18
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Liu F, Jin P, Gong H, Sun Z, Du L, Wang D. Antibacterial and antibiofilm activities of thyme oil against foodborne multiple antibiotics-resistant Enterococcus faecalis. Poult Sci 2020; 99:5127-5136. [PMID: 32988551 PMCID: PMC7598324 DOI: 10.1016/j.psj.2020.06.067] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 06/16/2020] [Accepted: 06/17/2020] [Indexed: 01/09/2023] Open
Abstract
The inhibitory and bactericidal activities of thyme oil against the foodborne multiple antibiotics-resistant Enterococcus faecalis biofilm were evaluated in this study. Gas chromatography-mass spectrometry revealed that more than 70% of the composition of thyme oil is thymol. Crystal violet staining assay showed that 128 and 256 μg/mL thyme oil significantly inhibited the biofilm formation of E. faecalis. The cell adherence of E. faecalis, as shown by its swimming and swarming motilities, was reduced by thyme oil. The exopolysaccharide (EPS) quantification assay showed that thyme oil inhibited the EPS synthesis in E. faecalis biofilms. The 3D-view observations through confocal laser scanning and scanning electron microscopy suggested that cell adherence and biofilm thickness were decreased in thyme oil–treated biofilms. Quantitative real-time analyses showed that the transcription of ebp and epa gene clusters, which were related to cell mobility and EPS production, was inhibited by thyme oil. Thus, thyme oil effectively inhibited the biofilm formation of E. faecalis by affecting cell adherence and EPS synthesis. Furthermore, 2,048 and 4,096 μg/mL thyme oil can effectively inactivate E. faecalis population in the mature E. faecalis biofilms by 5.75 and 7.20 log CFU/mL, respectively, after 30 min of treatment. Thus, thyme oil at different concentrations can be used as an effective antibiofilm or germicidal agent to control E. faecalis biofilms.
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Affiliation(s)
- Fang Liu
- Institute of Agricultural Products Processing, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China; School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Panpan Jin
- Institute of Agricultural Products Processing, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Hansheng Gong
- School of Food Engineering, Ludong University, Yantai 264025, China
| | - Zhilan Sun
- Institute of Agricultural Products Processing, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Lihui Du
- College of Food Science and Engineering, Collaborative Innovation Center for Modern Grain Circulation and Safety, Key Laboratory of Grains and Oils Quality Control and Processing, Nanjing University of Finance and Economics, Nanjing 210023, China.
| | - Daoying Wang
- Institute of Agricultural Products Processing, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China.
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19
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Landry KS, Morey JM, Bharat B, Haney NM, Panesar SS. Biofilms-Impacts on Human Health and Its Relevance to Space Travel. Microorganisms 2020; 8:microorganisms8070998. [PMID: 32635371 PMCID: PMC7409192 DOI: 10.3390/microorganisms8070998] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 06/19/2020] [Accepted: 07/01/2020] [Indexed: 01/08/2023] Open
Abstract
As the world looks towards the stars, the impacts of endogenous and exogenous microorganisms on human health during long-duration space flight are subjects of increased interest within the space community. The presence and continued growth of bacterial biofilms about spacecraft has been documented for decades; however, the impact on crew health is in its infancy. The impacts of biofilms are well known in the medical, agricultural, commercial, and industrial spaces. It less known that biofilms are undermining many facets of space travel and that their effects need to be understood and addressed for future space missions. Biofilms can damage space crew health and spoil limited food supply. Yet, at the same time, they can benefit plant systems for food growth, nutrient development, and other biological systems that are being explored for use in space travel. Various biofilm removal techniques have been studied to mitigate the hazards posed by biofilm persistence during space travel. Because the presence of biofilms can advance or hinder humanity’s space exploration efforts, an understanding of their impacts over the duration of space flights is of paramount importance.
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Affiliation(s)
- Kyle S Landry
- Liberty Biosecurity, Expeditionary and Special Programs Division, Worcester, MA 01605, USA;
- Correspondence:
| | - Jose M Morey
- Liberty Biosecurity, Expeditionary and Special Programs Division, Worcester, MA 01605, USA;
| | - Bharat Bharat
- Department of Psychology, University of South Florida, St. Petersburg, FL 33620, USA;
| | - Nora M Haney
- Department of Urology, Johns Hopkins University, Baltimore, MD 21218, USA;
| | - Sandip S Panesar
- Department of Neurosurgery, Stanford University, Stanford, CA 94305, USA;
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20
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Biofilm Eradication Activity of Herb and Spice Extracts Alone and in Combination Against Oral and Food-Borne Pathogenic Bacteria. Curr Microbiol 2020; 77:2486-2495. [PMID: 32394095 DOI: 10.1007/s00284-020-02017-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Accepted: 04/24/2020] [Indexed: 10/24/2022]
Abstract
The purpose of this study was to select herbs and spices with potent biofilm eradication activities. Further, the combined effects of herb and spice extracts against pathogenic biofilms were evaluated. The biofilm eradication activities of ethanol extracts of 104 herbs and spices were measured by combining a colorimetric microbial viability assay with a biofilm formation technique. Ethanol extract of clove had potent biofilm eradication activities against Escherichia coli, Porphyromonas gingivalis, and Streptococcus mutans. Ethanol extracts of eucalyptus and rosemary had potent biofilm eradication activities against P. gingivalis, Staphylococcus aureus and S. mutans. The combination of extracts of clove with eucalyptus or rosemary showed synergistic or additive effects, or both, on biofilm eradication activities. The main biofilm inhibitors in the ethanol extracts of clove, eucalyptus and rosemary were eugenol, macrocarpals and carnosic acid, respectively. The combinations of extracts of clove with eucalyptus or rosemary had potent biofilm eradication activities against oral and food-borne pathogenic bacteria. The findings of the present study reveal that specific combinations of herb and spice extracts may prevent and control biofilm-related oral diseases, food spoilage, and food poisoning.
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21
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Somrani M, Inglés MC, Debbabi H, Abidi F, Palop A. Garlic, Onion, and Cinnamon Essential Oil Anti-biofilms' Effect against Listeria monocytogenes. Foods 2020; 9:E567. [PMID: 32375294 PMCID: PMC7278783 DOI: 10.3390/foods9050567] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 04/10/2020] [Accepted: 04/13/2020] [Indexed: 12/12/2022] Open
Abstract
Biofilms represent a serious problem for food industries due to their persistence in processing surfaces, from which they can cause food spoilage or, even worse, lead to foodborne diseases. Microorganisms immersed in biofilms are more resistant to biocides. The search for natural effective alternatives for the prevention and the control of biofilms has increased lately. The aim of this research was to test the antibacterial and the anti-biofilm activities of cinnamon, onion, and garlic essential oils against Listeria monocytogenes. The methodology highlighted first the effect of these essential oils on L. monocytogenes using disc diffusion and minimum inhibitory concentration (MIC) methods and then on initial cell attachment and six hours preformed biofilms. The inhibition of biofilms was assessed by crystal violet assay. Sulfides were the most abundant compounds present in onion and garlic essential oils, while cinnamaldehyde was predominant in cinnamon essential oil. MIC values were of 0.025 mg mL-1 for onion essential oil and 0.100 mg mL-1 for cinnamon and garlic. Onion essential oil inhibited initial cell attachment by 77% at 0.5 of the MIC dose, while at MIC, cinnamon and garlic essential oils inhibited the initial microbial adhesion completely. All three essential oils completely inhibited initial cell attachment when applied at 2 MIC. On the contrary, preformed biofilms were more resistant, and the inhibition rate ranged from 33% to 78%. In summary, this investigation revealed that the essential oils of garlic, onion, and cinnamon show an effective antibiofilm activity against L. monocytogenes and are promising natural antimicrobial alternatives for food processing facilities.
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Affiliation(s)
- Mariem Somrani
- Departamento de Ingeniería Agronómica, Instituto de Biotecnología Vegetal, Universidad Politécnica de Cartagena, 30202 Cartagena, Spain;
- Department of AgriFood Industries, UR17AGR01-PATIO, National Agronomic Institute of Tunisia, University of Carthage, 1082 Tunis, Tunisia;
| | | | - Hajer Debbabi
- Department of AgriFood Industries, UR17AGR01-PATIO, National Agronomic Institute of Tunisia, University of Carthage, 1082 Tunis, Tunisia;
| | - Ferid Abidi
- Laboratory of Protein Engineering and Bioactive Molecules (LIP-MB), National Institute of Applied Sciences and Technology, University of Carthage, 1080 Tunis, Tunisia;
| | - Alfredo Palop
- Departamento de Ingeniería Agronómica, Instituto de Biotecnología Vegetal, Universidad Politécnica de Cartagena, 30202 Cartagena, Spain;
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22
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Anti-oxidant, antibacterial, anti-biofilm, and anti-quorum sensing activities of four essential oils against multidrug-resistant bacterial clinical isolates. Curr Res Transl Med 2020; 68:59-66. [DOI: 10.1016/j.retram.2020.01.001] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 01/19/2020] [Accepted: 01/20/2020] [Indexed: 12/26/2022]
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23
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Mizan MFR, Ashrafudoulla M, Hossain MI, Cho HR, Ha SD. Effect of essential oils on pathogenic and biofilm-forming Vibrio parahaemolyticus strains. BIOFOULING 2020; 36:467-478. [PMID: 32515601 DOI: 10.1080/08927014.2020.1772243] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
In this study, the effect of three essential oils (EOs) - clove oil (CO), thyme oil (TO), and garlic oil (GO), which are generally recognized as safe - on the planktonic growth, minimum inhibitory concentration (MIC), minimum bactericidal concentration (MBC), motility, biofilm formation, and quorum sensing (QS) of Vibrio parahaemolyticus was investigated. All three EOs showed bacteriostatic activity, with MICs in the range 0.02%-0.09% (v/v). CO and TO completely controlled planktonic growth at 0.28% and 0.08% (v/v), which is four times their MIC (4 × MIC), after 10 min, whereas GO completely controlled growth at 0.36% (v/v) (4 × MIC) after treatment for 20 min. V. parahaemolyticus motility was significantly reduced by all three EOs at 4 × MIC (0.28% for CO, 0.08% for TO, and 0.36% for GO), whereas QS was controlled and biofilm formation reduced by all three EOs at 8 × MIC (0.56% for CO, 0.16% for TO, and 0.72% for GO) after 30 min of treatment. These results suggest that CO, TO, and GO have a significant inhibitory effect on V. parahaemolyticus cells in biofilm sand thus represent a promising strategy for improving food safety. These results provide the evidence required to encourage further research into the practical use of the proposed EOs in food preparation processes.
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Affiliation(s)
| | - Md Ashrafudoulla
- Food Science and Technology, Chung-Ang University, Anseong, Gyeonggi-do, South Korea
| | - Md Iqbal Hossain
- Food Science and Technology, Chung-Ang University, Anseong, Gyeonggi-do, South Korea
| | - Hye-Ran Cho
- Food Science and Technology, Chung-Ang University, Anseong, Gyeonggi-do, South Korea
| | - Sang-Do Ha
- Food Science and Technology, Chung-Ang University, Anseong, Gyeonggi-do, South Korea
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24
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Ayres Cacciatore F, Dalmás M, Maders C, Ataíde Isaía H, Brandelli A, da Silva Malheiros P. Carvacrol encapsulation into nanostructures: Characterization and antimicrobial activity against foodborne pathogens adhered to stainless steel. Food Res Int 2020; 133:109143. [PMID: 32466924 DOI: 10.1016/j.foodres.2020.109143] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 03/01/2020] [Accepted: 03/02/2020] [Indexed: 11/16/2022]
Abstract
Carvacrol is a natural antimicrobial capable of inhibiting several microorganisms. The encapsulation of this compound may increase its stability, water solubility and provide controlled release. In this study, carvacrol encapsulated into nanoliposomes (NLC) and polymeric Eudragit® nanocapsules (NCC) was tested against Staphylococcus aureus, Listeria monocytogenes, Escherichia coli and Salmonella spp. adhered to stainless steel. NLC showed an average diameter of 270.8 nm, zeta potential of +8.64 mV, and encapsulation efficiency of 98%. Minimum Bactericidal Concentration (MBC) of NLC was 3.53 mg/mL against Salmonella and 5.30 mg/mL against the other bacteria. NCC presented an average diameter of 159.3 nm, zeta potential of +44.8 mV, and encapsulation efficiency of 97%. MBC of NCC was 4.42 mg/mL against E. coli and 3.31 mg/mL against the other bacteria. After 2 h incubation with NCC at carvacrol concentration equivalent to ½ MBC, viable counts of Salmonella and E. coli were below the detection limit (1.69 CFU/mL). The population of L. monocytogenes and S. aureus was reduced by 2 log CFU/mL in 6 h. Afterwards, pools of each bacterium were separately adhered to stainless steel coupons (initial population 6.5 CFU/cm2). Salmonella and E. coli were inhibited below the detection limit using the NCC at concentration equivalent to MBC, while L. monocytogenes and S. aureus were reduced by 4 log CFU/cm2 and 3.5 log CFU/cm2, respectively. Although free carvacrol presented better results than encapsulated one in all tests performed, using encapsulated carvacrol could be more interesting for food applications by masking the strong aroma of the compound, in addition to a controlled release of carvacrol. The results suggest that NCC have potential for use in food contact surfaces in order to avoid bacterial adhesion and subsequent biofilm formation.
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Affiliation(s)
- Fabíola Ayres Cacciatore
- Laboratório de Higiene de Alimentos, Departamento de Ciência de Alimentos, Instituto de Ciências e Tecnologia de Alimentos, Universidade Federal do Rio Grande do Sul, 91501-970 Porto Alegre, Brazil
| | - Michelle Dalmás
- Laboratório de Higiene de Alimentos, Departamento de Ciência de Alimentos, Instituto de Ciências e Tecnologia de Alimentos, Universidade Federal do Rio Grande do Sul, 91501-970 Porto Alegre, Brazil
| | - Caroline Maders
- Laboratório de Higiene de Alimentos, Departamento de Ciência de Alimentos, Instituto de Ciências e Tecnologia de Alimentos, Universidade Federal do Rio Grande do Sul, 91501-970 Porto Alegre, Brazil
| | - Henrique Ataíde Isaía
- Laboratório de Bioquímica e Microbiologia Aplicada, Departamento de Ciência de Alimentos, Instituto de Ciências e Tecnologia de Alimentos, Universidade Federal do Rio Grande do Sul, 91501-970 Porto Alegre, Brazil
| | - Adriano Brandelli
- Laboratório de Bioquímica e Microbiologia Aplicada, Departamento de Ciência de Alimentos, Instituto de Ciências e Tecnologia de Alimentos, Universidade Federal do Rio Grande do Sul, 91501-970 Porto Alegre, Brazil.
| | - Patrícia da Silva Malheiros
- Laboratório de Higiene de Alimentos, Departamento de Ciência de Alimentos, Instituto de Ciências e Tecnologia de Alimentos, Universidade Federal do Rio Grande do Sul, 91501-970 Porto Alegre, Brazil
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Kerekes EB, Vidács A, Takó M, Petkovits T, Vágvölgyi C, Horváth G, Balázs VL, Krisch J. Anti-Biofilm Effect of Selected Essential Oils and Main Components on Mono- and Polymicrobic Bacterial Cultures. Microorganisms 2019; 7:E345. [PMID: 31547282 PMCID: PMC6780703 DOI: 10.3390/microorganisms7090345] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 08/23/2019] [Accepted: 09/10/2019] [Indexed: 01/03/2023] Open
Abstract
Biofilms are surface-associated microbial communities resistant to sanitizers and antimicrobials. Various interactions that can contribute to increased resistance occur between the populations in biofilms. These relationships are the focus of a range of studies dealing with biofilm-associated infections and food spoilage. The present study investigated the effects of cinnamon (Cinnamomum zeylanicum), marjoram (Origanum majorana), and thyme (Thymus vulgaris) essential oils (EOs) and their main components, i.e., trans-cinnamaldehyde, terpinen-4-ol, and thymol, respectively, on single- and dual-species biofilms of Escherichia coli, Listeria monocytogenes, Pseudomonas putida, and Staphylococcus aureus. In dual-species biofilms, L. monocytogenes was paired with each of the other three bacteria. Minimum inhibitory concentration (MIC) values for the individual bacteria ranged between 0.25 and 20 mg/mL, and trans-cinnamaldehyde and cinnamon showed the highest growth inhibitory effect. Single-species biofilms of L. monocytogenes, P. putida, and S. aureus were inhibited by the tested EOs and their components at sub-lethal concentrations. Scanning electron microscopy images showed that the three-dimensional structure of mature biofilms embedded in the exopolysaccharide matrix disappeared or was limited to micro-colonies with a simplified structure. In most dual-species biofilms, to eliminate living cells from the matrix, concentrations exceeding the MIC determined for individual bacteria were required.
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Affiliation(s)
- Erika Beáta Kerekes
- Department of Microbiology, Faculty of Science and Informatics, University of Szeged, H-6726 Szeged, Közép fasor 52, Hungary.
| | - Anita Vidács
- Institute of Food Engineering, Faculty of Engineering, University of Szeged, H-6724 Szeged, Mars tér 7, Hungary
| | - Miklós Takó
- Department of Microbiology, Faculty of Science and Informatics, University of Szeged, H-6726 Szeged, Közép fasor 52, Hungary
| | - Tamás Petkovits
- Department of Microbiology, Faculty of Science and Informatics, University of Szeged, H-6726 Szeged, Közép fasor 52, Hungary
| | - Csaba Vágvölgyi
- Department of Microbiology, Faculty of Science and Informatics, University of Szeged, H-6726 Szeged, Közép fasor 52, Hungary
| | - Györgyi Horváth
- Department of Pharmacognosy, University of Pécs, H-7624 Pécs, Rókus utca 2, Hungary
| | | | - Judit Krisch
- Institute of Food Engineering, Faculty of Engineering, University of Szeged, H-6724 Szeged, Mars tér 7, Hungary
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26
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Orhan-Yanıkan E, da Silva-Janeiro S, Ruiz-Rico M, Jiménez-Belenguer AI, Ayhan K, Barat JM. Essential oils compounds as antimicrobial and antibiofilm agents against strains present in the meat industry. Food Control 2019. [DOI: 10.1016/j.foodcont.2019.02.035] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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27
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Micciche A, Rothrock MJ, Yang Y, Ricke SC. Essential Oils as an Intervention Strategy to Reduce Campylobacter in Poultry Production: A Review. Front Microbiol 2019; 10:1058. [PMID: 31139172 PMCID: PMC6527745 DOI: 10.3389/fmicb.2019.01058] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 04/26/2019] [Indexed: 12/19/2022] Open
Abstract
Campylobacter is a major foodborne pathogen and can be acquired through consumption of poultry products. With 1.3 million United States cases a year, the high prevalence of Campylobacter within the poultry gastrointestinal tract is a public health concern and thus a target for the development of intervention strategies. Increasing demand for antibiotic-free products has led to the promotion of various alternative pathogen control measures both at the farm and processing level. One such measure includes utilizing essential oils in both pre- and post-harvest settings. Essential oils are derived from plant-based extracts, and there are currently over 300 commercially available compounds. They have been proposed to control Campylobacter in the gastrointestinal tract of broilers. When used in concentrations low enough to not influence sensory characteristics, essential oils have also been proposed to decrease bacterial contamination of the poultry product during processing. This review explores the use of essential oils, particularly thymol, carvacrol, and cinnamaldehyde, and their role in reducing Campylobacter concentrations both pre- and post-harvest. This review also details the suggested mechanisms of action of essential oils on Campylobacter.
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Affiliation(s)
- Andrew Micciche
- Center of Food Safety, Department of Food Science, University of Arkansas, Fayetteville, AR, United States
| | - Michael J. Rothrock
- United States Department of Agriculture, Agricultural Research Service, Athens, GA, United States
| | - Yichao Yang
- Department of Poultry Science, University of Arkansas, Fayetteville, AR, United States
| | - Steven C. Ricke
- Center of Food Safety, Department of Food Science, University of Arkansas, Fayetteville, AR, United States
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28
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Patsilinakos A, Artini M, Papa R, Sabatino M, Božović M, Garzoli S, Vrenna G, Buzzi R, Manfredini S, Selan L, Ragno R. Machine Learning Analyses on Data including Essential Oil Chemical Composition and In Vitro Experimental Antibiofilm Activities against Staphylococcus Species. Molecules 2019; 24:molecules24050890. [PMID: 30832446 PMCID: PMC6429525 DOI: 10.3390/molecules24050890] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2019] [Revised: 02/25/2019] [Accepted: 02/26/2019] [Indexed: 11/28/2022] Open
Abstract
Biofilm resistance to antimicrobials is a complex phenomenon, driven not only by genetic mutation induced resistance, but also by means of increased microbial cell density that supports horizontal gene transfer across cells. The prevention of biofilm formation and the treatment of existing biofilms is currently a difficult challenge; therefore, the discovery of new multi-targeted or combinatorial therapies is growing. The development of anti-biofilm agents is considered of major interest and represents a key strategy as non-biocidal molecules are highly valuable to avoid the rapid appearance of escape mutants. Among bacteria, staphylococci are predominant causes of biofilm-associated infections. Staphylococci, especially Staphylococcus aureus (S. aureus) is an extraordinarily versatile pathogen that can survive in hostile environmental conditions, colonize mucous membranes and skin, and can cause severe, non-purulent, toxin-mediated diseases or invasive pyogenic infections in humans. Staphylococcus epidermidis (S. epidermidis) has also emerged as an important opportunistic pathogen in infections associated with medical devices (such as urinary and intravascular catheters, orthopaedic implants, etc.), causing approximately from 30% to 43% of joint prosthesis infections. The scientific community is continuously looking for new agents endowed of anti-biofilm capabilities to fight S. aureus and S epidermidis infections. Interestingly, several reports indicated in vitro efficacy of non-biocidal essential oils (EOs) as promising treatment to reduce bacterial biofilm production and prevent the inducing of drug resistance. In this report were analyzed 89 EOs with the objective of investigating their ability to modulate bacterial biofilm production of different S. aureus and S. epidermidis strains. Results showed the assayed EOs to modulated the biofilm production with unpredictable results for each strain. In particular, many EOs acted mainly as biofilm inhibitors in the case of S. epidermidis strains, while for S. aureus strains, EOs induced either no effect or stimulate biofilm production. In order to elucidate the obtained experimental results, machine learning (ML) algorithms were applied to the EOs’ chemical compositions and the determined associated anti-biofilm potencies. Statistically robust ML models were developed, and their analysis in term of feature importance and partial dependence plots led to indicating those chemical components mainly responsible for biofilm production, inhibition or stimulation for each studied strain, respectively.
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Affiliation(s)
- Alexandros Patsilinakos
- Rome Center for Molecular Design, Department of Drug Chemistry and Technology, Sapienza University, P.le Aldo Moro 5, 00185 Rome, Italy.
- Alchemical Dynamics s.r.l., 00125 Rome, Italy.
| | - Marco Artini
- Department of Public Health and Infectious Diseases, Sapienza University, P.le Aldo Moro 5, 00185 Rome, Italy.
| | - Rosanna Papa
- Department of Public Health and Infectious Diseases, Sapienza University, P.le Aldo Moro 5, 00185 Rome, Italy.
| | | | - Mijat Božović
- Faculty of Natural Sciences and Mathematics, University of Montenegro, Podgorica, Montenegro.
| | - Stefania Garzoli
- Department of Drug Chemistry and Technology, Sapienza University, P.le Aldo Moro 5, 00185 Rome, Italy.
| | - Gianluca Vrenna
- Department of Public Health and Infectious Diseases, Sapienza University, P.le Aldo Moro 5, 00185 Rome, Italy.
| | - Raissa Buzzi
- Master Course in Cosmetic Sciences, Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy.
| | - Stefano Manfredini
- Master Course in Cosmetic Sciences, Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy.
| | - Laura Selan
- Department of Public Health and Infectious Diseases, Sapienza University, P.le Aldo Moro 5, 00185 Rome, Italy.
| | - Rino Ragno
- Rome Center for Molecular Design, Department of Drug Chemistry and Technology, Sapienza University, P.le Aldo Moro 5, 00185 Rome, Italy.
- Alchemical Dynamics s.r.l., 00125 Rome, Italy.
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29
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Čabarkapa I, Čolović R, Đuragić O, Popović S, Kokić B, Milanov D, Pezo L. Anti-biofilm activities of essential oils rich in carvacrol and thymol against Salmonella Enteritidis. BIOFOULING 2019; 35:361-375. [PMID: 31088182 DOI: 10.1080/08927014.2019.1610169] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 03/12/2019] [Accepted: 04/16/2019] [Indexed: 06/09/2023]
Abstract
The aim of the present study was to determine the bioactive compounds in four essential oils (EO's) from Origanum heracleoticum, Origanum vulgare, Thymus vulgaris and Thymus serpyllum and to assess their antimicrobial and anti-biofilm activity against Salmonella Enteritidis. Strains were previously characterized depending on the expression of the extracellular matrix components cellulose and curli fimbriae as rdar (red, dry and rough) and bdar morphotype (brown, dry and rough). This study revealed that the EO's and EOC's (carvacrol and thymol) investigated showed inhibition of biofilm formation at sub-minimum inhibitory concentration. Comparing the efficacy of EO's and EOC's in the inhibition of biofilm formation between the strains with different morphotype (rdar and bdar) did not show a statistically significant difference. Results related to the effectiveness of EO's and EOC's (the essential oil components, carvacrol and thymol) on eradication of preformed 48 h old biofilms indicated that biofilm reduction occurred in a dose-dependent manner over time.
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Affiliation(s)
- Ivana Čabarkapa
- a University of Novi Sad, Institute of Food Technology , Novi Sad , Serbia
| | - Radmilo Čolović
- a University of Novi Sad, Institute of Food Technology , Novi Sad , Serbia
| | - Olivera Đuragić
- a University of Novi Sad, Institute of Food Technology , Novi Sad , Serbia
| | - Sanja Popović
- a University of Novi Sad, Institute of Food Technology , Novi Sad , Serbia
| | - Bojana Kokić
- a University of Novi Sad, Institute of Food Technology , Novi Sad , Serbia
| | - Dubravka Milanov
- b Scientific Veterinary Institute "Novi Sad", Rumenački put bb , Novi Sad , Serbia
| | - Lato Pezo
- c University of Belgrade, Institute of General and Physical Chemistry , Belgrade , Serbia
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30
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Novel sensor platform for rapid detection and quantification of coliforms on food contact surfaces. J Microbiol Methods 2018; 153:74-83. [PMID: 30240812 DOI: 10.1016/j.mimet.2018.09.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 09/17/2018] [Accepted: 09/17/2018] [Indexed: 01/30/2023]
Abstract
In this paper, a novel sensor platform based on screen printed carbon electrode coated by graphene modified polyacrylamide gel (GR/PAAGC) was developed and implemented for sampling, detection and enumeration of coliform bacteria (coliforms) on food contact surfaces. The optimized formula of polyacrylamide (PAA) and agar-agar increased the adhesive properties of the gel, being crucial for the coliforms recovery, attached to food contact surfaces. The 6-Chloro-3-indoxyl-β-D-galactopyranoside (6-CIGP) was used as a new electrochemical reporter for β-D-galactosidase activity. The released 6,6'-Dichloro-Indigo (6-DI) was directly detected by GR/PAAGC sensor. The presence of Isopropyl-β-D-thiogalactopyranoside (IPTG) and n-Octyl-β-D-thiogalactopyranoside (OBDG) in the gel contributed to reduction of the detection time. The addition of graphene enhanced the voltammetric signal and increased the conductivity of PAA gel. The anodic and cathodic peaks of the released product were directly proportional to the concentration of coliforms. Bacterial cell concentrations ranging from 1.6log10CFU/mL to 6.6log10CFU/mL were detected. Well-shaped, sharp voltammetric curves were generated within 3 h. Redox peaks exhibited good sensitivity with detection limits (LOD) < 0.6log10CFU/mL. After series of optimization experiments, coliforms ranging from 0.6log10CFU/cm2 to 6.610CFU/cm2 on stainless steel surfaces have been detected within 30 min with a LOD of 0.1log10CFU/cm2. The developed rapid, sensitive, reproducible and specific sensor successfully applied for single detection as well as for real-time monitoring of growth of coliform bacteria on stainless steel surfaces during food processing.
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31
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Ribeiro M, Malheiro J, Grenho L, Fernandes MH, Simões M. Cytotoxicity and antimicrobial action of selected phytochemicals against planktonic and sessile Streptococcus mutans. PeerJ 2018; 6:e4872. [PMID: 29888127 PMCID: PMC5991298 DOI: 10.7717/peerj.4872] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Accepted: 05/10/2018] [Indexed: 12/17/2022] Open
Abstract
Background Dental caries remains the most prevalent and costly oral infectious disease worldwide, encouraging the search for new and more effective antimicrobials. Therefore, the aim of this work was to study the antimicrobial action of selected phytochemicals (eugenol, citronellol, sabinene hydrate, trans-cinnamaldehyde, terpineol and cinnamic acid) against Streptococcus mutans in planktonic and biofilm states as well as the cytotoxicity of these compounds. Methods The antibacterial activity of the selected compounds was evaluated by the determination of the minimal bactericidal concentration. The resazurin assay was used to assess the metabolic activity of sessile S. mutans. The cytotoxicity was determined using a fibroblast cell line. Results Among the tested phytochemicals, citronellol, cinnamic acid and trans-cinnamaldehyde were the most effective against both planktonic and sessile S. mutans, an effect apparently related to their hydrophobic character. Additionally, these three compounds did not compromise fibroblasts cell viability. Discussion Citronellol, cinnamic acid and trans-cinnamaldehyde demonstrated significant antimicrobial activity and low cytotoxicity proposing their potential as a novel group of therapeutic compounds to control oral infectious diseases. Moreover, their effects are particularly relevant when benchmarked against eugenol, a phytochemical commonly used for prosthodontic applications in dentistry.
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Affiliation(s)
- Marta Ribeiro
- LEPABE-Department of Chemical Engineering, Faculty of Engineering-University of Porto, Porto, Portugal
| | - Joana Malheiro
- LEPABE-Department of Chemical Engineering, Faculty of Engineering-University of Porto, Porto, Portugal
| | - Liliana Grenho
- Laboratory for Bone Metabolism and Regeneration, Faculty of Dental Medicine, University of Porto, Porto, Portugal
| | - Maria Helena Fernandes
- Laboratory for Bone Metabolism and Regeneration, Faculty of Dental Medicine, University of Porto, Porto, Portugal.,REQUIMTE/LAQV, University of Porto, Porto, Portugal
| | - Manuel Simões
- LEPABE-Department of Chemical Engineering, Faculty of Engineering-University of Porto, Porto, Portugal
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32
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Optimization of essential oil-based natural disinfectants against Listeria monocytogenes and Escherichia coli biofilms formed on polypropylene surfaces. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.01.179] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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33
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Li T, Wang D, Liu N, Ma Y, Ding T, Mei Y, Li J. Inhibition of quorum sensing-controlled virulence factors and biofilm formation in Pseudomonas fluorescens by cinnamaldehyde. Int J Food Microbiol 2018; 269:98-106. [PMID: 29421365 DOI: 10.1016/j.ijfoodmicro.2018.01.023] [Citation(s) in RCA: 81] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Revised: 01/26/2018] [Accepted: 01/30/2018] [Indexed: 10/18/2022]
Abstract
Pseudomonas fluorescens, an important food spoiling bacteria, uses quorum sensing to control biofilm formation and motility. To date, only a few compounds targeting the LuxR-based quorum sensing system of P. fluorescens have been identified. In the present study, the quorum sensing inhibitory effect of cinnamaldehyde at sublethal concentrations was investigated in terms of inhibition of the extracellular protease, biofilm formation, and swimming and swarming motility. The total volatile basic nitrogen value was also measured to evaluate the effect of cinnamaldehyde on quality preservation of turbot fillets stored at 4 ± 1 °C for 15 days. The results showed that cinnamaldehyde significantly inhibited quorum sensing-dependent factors in P. fluorescens and extended the storage life of turbot. Unexpectedly, cinnamaldehyde did not interfere with production of AHLs (N-acylhomoserine lactones) by P. fluorescens, as shown by measurement of AHL production using GC-MS. Molecular docking analysis revealed that cinnamaldehyde can interact with the LuxR-type protein of P. fluorescens, which could constitute the molecular basis of the quorum sensing inhibition observed. These findings strongly suggest that cinnamaldehyde is a quorum sensing inhibitor with great potential for the preservation of aquatic products to guarantee food safety.
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Affiliation(s)
- Tingting Li
- Key Laboratory of Biotechnology and Bioresources Utilization (Dalian Minzu University), Ministry of Education, Dalian, Liaoning 116029, China.
| | - Dangfeng Wang
- College of Food Science and Technology, Bohai University, National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou, Liaoning 121013, China
| | - Nan Liu
- College of Food Science and Technology, Bohai University, National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou, Liaoning 121013, China
| | - Yan Ma
- College of Food Science and Technology, Bohai University, National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou, Liaoning 121013, China
| | - Ting Ding
- College of Food Science and Technology, Bohai University, National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou, Liaoning 121013, China; School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Yongchao Mei
- College of Food Science and Technology, Bohai University, National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou, Liaoning 121013, China
| | - Jianrong Li
- College of Food Science and Technology, Bohai University, National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou, Liaoning 121013, China.
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34
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Shi C, Yan C, Sui Y, Sun Y, Guo D, Chen Y, Jin T, Peng X, Ma L, Xia X. Thymoquinone Inhibits Virulence Related Traits of Cronobacter sakazakii ATCC 29544 and Has Anti-biofilm Formation Potential. Front Microbiol 2017; 8:2220. [PMID: 29234307 PMCID: PMC5712421 DOI: 10.3389/fmicb.2017.02220] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Accepted: 10/30/2017] [Indexed: 12/18/2022] Open
Abstract
The aim of this study was to determine whether thymoquinone, the principal active ingredient in the volatile oil of Nigella sativa seeds, could suppress certain virulence traits of Cronobacter sakazakii ATCC 29544 which contribute to infection. Sub-inhibitory concentrations of thymoquinone significantly decreased motility, quorum sensing, and endotoxin production of C. sakazakii ATCC 29544 and biofilm formation of C. sakazakii 7-17. Thymoquinone substantially reduced the adhesion and invasion of C. sakazakii ATCC 29544 to HT-29 cells and decreased the number of intracellular bacterial cells within the RAW 264.7 macrophage cells. Thymoquinone also repressed the transcription of sixteen genes involved in the virulence. These findings suggest that thymoquinone could attenuated virulence-related traits of C. sakazakii ATCC 29544, and its effects on other C. sakazakii strains and in vivo C. sakazakii infection need further investigation.
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Affiliation(s)
- Chao Shi
- College of Food Science and Engineering, Northwest A&F University, Yangling, China
| | - Chunhong Yan
- College of Animal Science and Technology, Northwest A&F University, Yangling, China.,School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, China
| | - Yue Sui
- College of Food Science and Engineering, Northwest A&F University, Yangling, China
| | - Yi Sun
- College of Food Science and Engineering, Northwest A&F University, Yangling, China
| | - Du Guo
- College of Food Science and Engineering, Northwest A&F University, Yangling, China
| | - Yifei Chen
- College of Food Science and Engineering, Northwest A&F University, Yangling, China
| | - Tong Jin
- College of Food Science and Engineering, Northwest A&F University, Yangling, China
| | - Xiaoli Peng
- College of Food Science and Engineering, Northwest A&F University, Yangling, China
| | - Linlin Ma
- Xi'An Yurun Agricultural Products Global Sourcing Co., LTD., Xi'an, China
| | - Xiaodong Xia
- College of Food Science and Engineering, Northwest A&F University, Yangling, China
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35
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Bag A, Chattopadhyay R. Synergistic antibacterial and antibiofilm efficacy of nisin in combination withp-coumaric acid against food-borne bacteriaBacillus cereusandSalmonella typhimurium. Lett Appl Microbiol 2017; 65:366-372. [PMID: 28815637 DOI: 10.1111/lam.12793] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Revised: 07/04/2017] [Accepted: 08/08/2017] [Indexed: 11/29/2022]
Affiliation(s)
- A. Bag
- Agricultural and Ecological Research Unit; Indian Statistical Institute; Kolkata West Bengal India
| | - R.R. Chattopadhyay
- Agricultural and Ecological Research Unit; Indian Statistical Institute; Kolkata West Bengal India
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36
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Vieira M, Bessa LJ, Martins MR, Arantes S, Teixeira APS, Mendes Â, Martins da Costa P, Belo ADF. Chemical Composition, Antibacterial, Antibiofilm and Synergistic Properties of Essential Oils from Eucalyptus globulus Labill. and Seven Mediterranean Aromatic Plants. Chem Biodivers 2017; 14. [PMID: 28281322 DOI: 10.1002/cbdv.201700006] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2017] [Accepted: 03/06/2017] [Indexed: 11/08/2022]
Abstract
Essential oils (EOs) from Eucalyptus globulus Labill. ssp. globulus and from Mediterranean autochthonous aromatic plants - Thymus mastichina L., Mentha pulegium L., Rosmarinus officinalis L., Calamintha nepeta (L.) Savi ssp. nepeta, Cistus ladanifer L., Foeniculum vulgare L., Dittrichia viscosa (L.) Greuter ssp. viscosa - were extracted by hydrodistillation and characterized by GC-FID and NMR spectroscopy. EOs were evaluated for antimicrobial properties against several bacterial strains, using diverse methods, namely, the agar disc-diffusion method, the microdilution method, the crystal violet assay and the Live/Dead staining for assessment of biofilm formation. Potential synergy was assessed by a checkerboard method. EOs of R. officinalis and C. ladanifer showed a predominance in monoterpene hydrocarbons (> 60%); EOs of C. nepeta, M. pulegium, T. mastichina, E. globulus and F. vulgare were rich in oxygenated monoterpenes (62 - 96%) whereas EO of D. viscosa was mainly composed of oxygenated sesquiterpenes (54%). All EOs showed antimicrobial activity; M. pulegium and E. globulus generally had the strongest antimicrobial activity. EO of C. nepeta was the most promising in hampering the biofilm formation. The combinations D. viscosa/C. nepeta and E. globulus/T. mastichina were synergistic against Staphylococcus aureus. These results support the notion that EOs from the aromatic plants herein reported should be further explored as potential pharmaceuticals and/or food preservatives.
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Affiliation(s)
- Maria Vieira
- Departamento de Produção Aquática, Instituto de Ciências Biomédicas Abel Salazar (ICBAS), Universidade do Porto, PT-4050-343, Porto
| | - Lucinda J Bessa
- Departamento de Produção Aquática, Instituto de Ciências Biomédicas Abel Salazar (ICBAS), Universidade do Porto, PT-4050-343, Porto.,UCIBIO/REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, PT-4169-007, Porto
| | - M Rosário Martins
- Laboratório HERCULES & Departamento de Química, Escola de Ciências e Tecnologia, Universidade de Évora, PT-7000-671, Évora
| | - Sílvia Arantes
- ICAAM - Instituto de Ciências Agrárias e Ambientais Mediterrânicas & Laboratório HERCULES, Universidade de Évora, PT-7002-554, Évora
| | - António P S Teixeira
- Centro de Química de Évora & Departamento de Química, Escola de Ciências e Tecnologia, Universidade de Évora, PT-7000-671, Évora
| | - Ângelo Mendes
- Departamento de Produção Aquática, Instituto de Ciências Biomédicas Abel Salazar (ICBAS), Universidade do Porto, PT-4050-343, Porto
| | - Paulo Martins da Costa
- Departamento de Produção Aquática, Instituto de Ciências Biomédicas Abel Salazar (ICBAS), Universidade do Porto, PT-4050-343, Porto.,Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Universidade do Porto, PT-4450-208, Matosinhos
| | - Anabela D F Belo
- ICAAM - Instituto de Ciências Agrárias e Ambientais Mediterrânicas, Departamento de Biologia, Escola de Ciências e Tecnologia, Universidade de Évora, PT-7002-554, Évora
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Antimicrobial activity of free and liposome-encapsulated thymol and carvacrol against Salmonella and Staphylococcus aureus adhered to stainless steel. Int J Food Microbiol 2017; 252:18-23. [PMID: 28436830 DOI: 10.1016/j.ijfoodmicro.2017.04.003] [Citation(s) in RCA: 96] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Revised: 03/17/2017] [Accepted: 04/13/2017] [Indexed: 01/23/2023]
Abstract
Antimicrobial activity of thymol, carvacrol and thymol/carvacrol liposomes (TCL) was evaluated against two bacterial pools, each one consisting of four strains of Staphylococcus aureus or Salmonella enterica. TCL were prepared using thin-film hydration, showing 270.20nm average diameter (polydispersity index of 0.33) and zeta potential of +39.99mV. Minimum inhibitory concentration (MIC) of thymol, carvacrol and TCL against S. aureus pool was 0.662mg/ml, while MIC for Salmonella pool was 0.331mg/ml for thymol and carvacrol, and for TCL was 0.662mg/ml. Bacterial pools (8.0logCFU/ml), allowed in contact on stainless steel AISI 304 coupons in UHT skim milk for 15min, resulted in adhered populations of 5.6-6.1logCFU/cm2. Adhered S. aureus (±6.1logCFU/cm2) were inhibited after 1-min and 10-min treatments using thymol or carvacrol at MIC and 2.0 MIC. Reductions of 1.47-1.76logCFU/cm2 and 1.87-2.04logCFU/cm2 were obtained using 0.5 MIC of thymol and carvacrol, respectively. A 10-min contact with free (MIC and 2.0 MIC) and encapsulated (MIC) antimicrobials inhibited attached Salmonella (±6.0logCFU/cm2); however, after 1-min of contact, 2.0 MIC of thymol and carvacrol were not able to inactivate adhered Salmonella MIC of TCL inactivated S. aureus and Salmonella after 10min; however, after 1-min contact, adhered S. aureus and Salmonella populations were decreased in 1.62logCFU/cm2 and 2.01logCFU/cm2, respectively. Considering antimicrobial concentrations and contact times, thymol, carvacrol, and TCL could be employed in food-contact surfaces to prevent biofilm formation at early stages of bacterial attachment. Further investigations should be performed considering long-term antibacterial effects of TCL.
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dos Santos Rodrigues JB, de Carvalho RJ, de Souza NT, de Sousa Oliveira K, Franco OL, Schaffner D, de Souza EL, Magnani M. Effects of oregano essential oil and carvacrol on biofilms of Staphylococcus aureus from food-contact surfaces. Food Control 2017. [DOI: 10.1016/j.foodcont.2016.10.043] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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39
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Oh SY, Yun W, Lee JH, Lee CH, Kwak WK, Cho JH. Effects of essential oil (blended and single essential oils) on anti-biofilm formation of Salmonella and Escherichia coli. JOURNAL OF ANIMAL SCIENCE AND TECHNOLOGY 2017; 59:4. [PMID: 28239484 PMCID: PMC5316425 DOI: 10.1186/s40781-017-0127-7] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Accepted: 01/31/2017] [Indexed: 11/21/2022]
Abstract
Background Biofilms were the third-dimensional structure in the solid surface of bacteria. Bacterial biofilms were difficult to control by host defenses and antibiotic therapies. Escherichia coli (E. coli) and Salmonella were popular pathogenic bacteria that live in human and animal intestines. Essential oils are aromatic oily liquids from plant materials and well known for their antibacterial activities. Method This study was conducted to determine effect of essential oil on anti-biological biofilm formation of E. coli and Salmonella strains in in vitro experiment. Two kinds of bacterial strains were separated from 0.2 g pig feces. Bacterial strains were distributed in 24 plates per treatment and each plates as a replication. The sample was coated with a Bacterial biofilm formation was. Result Photographic result, Escherichia coli (E. coli) and Salmonella bacteria colony surface were thick smooth surface in control. However, colony surface in blended and single essential oil treatment has shown crack surface layer compared with colony surfaces in control. Conclusion In conclusion, this study could confirm that essential oils have some interesting effect on anti-biofilm formation of E. coli and Salmonella strains from pig feces.
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Affiliation(s)
- S Y Oh
- Division of Food and Animal Sciences, Chungbuk National University, Cheongju, Chungbuk, 361-763 South Korea
| | - W Yun
- Division of Food and Animal Sciences, Chungbuk National University, Cheongju, Chungbuk, 361-763 South Korea
| | - J H Lee
- Division of Food and Animal Sciences, Chungbuk National University, Cheongju, Chungbuk, 361-763 South Korea
| | - C H Lee
- Division of Food and Animal Sciences, Chungbuk National University, Cheongju, Chungbuk, 361-763 South Korea
| | - W K Kwak
- Division of Food and Animal Sciences, Chungbuk National University, Cheongju, Chungbuk, 361-763 South Korea
| | - J H Cho
- Division of Food and Animal Sciences, Chungbuk National University, Cheongju, Chungbuk, 361-763 South Korea
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40
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Campana R, Casettari L, Fagioli L, Cespi M, Bonacucina G, Baffone W. Activity of essential oil-based microemulsions against Staphylococcus aureus biofilms developed on stainless steel surface in different culture media and growth conditions. Int J Food Microbiol 2016; 241:132-140. [PMID: 27770682 DOI: 10.1016/j.ijfoodmicro.2016.10.021] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Revised: 10/10/2016] [Accepted: 10/16/2016] [Indexed: 10/20/2022]
Abstract
Food safety is a fundamental concern for both consumers and the food industry, especially as the numbers of reported cases of food-associated infections continue to increase. Industrial surfaces can provide a suitable substrate for the development and persistence of bacterial organized in biofilms that represent a potential source of food contamination. The negative consumer perception of chemical disinfectants has shifted the attention to natural substances, such as plant extracts. The aim of this study was to investigate the possibility of using the essential oils (EOs) in the fight against S. aureus biofilms. First, the Minimum Inhibitory Concentration (MIC), Minimum Bactericidal Concentration (MBC), Minimum Biofilm Inhibitory Concentration (MBIC), Minimum Biofilm Eradication Concentration (MBEC) of eleven EOs against S. aureus were determined. Cinnamomum cassia and Salvia officinalis EOs showed the greatest antibacterial properties with 1.25% MIC and MBC, 1.25% MBIC and 2.5% MBEC respectively. Gas Chromatography/Mass Spectrometry analysis revealed cinnamaldehyde (82.66%) and methoxy cinnamaldehyde (10.12%) as the most abundant substances of C. cassia, while cis-thujone (23.90%), camphor (19.22%) and 1.8-cineole (10.62%) of S. officinalis. Three different microemulsions, formulated with C. cassia, S. officinalis or both, were finally tested against S. aureus biofilms in different culture media and growth conditions, causing a >3 logarithmic reductions in S. aureus 24h-old biofilms and desiccated biofilms, and up to 68% of biofilm removal after 90min of exposure. The obtained data suggest the potential use of EOs, alone or in combination, for the formulation of sanitizers as alternative or in support in the disinfection of contaminated surfaces.
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Affiliation(s)
- Raffaella Campana
- Department of Biomolecular Science, University of Urbino "Carlo Bo", Urbino, Italy.
| | - Luca Casettari
- Department of Biomolecular Science, University of Urbino "Carlo Bo", Urbino, Italy
| | - Laura Fagioli
- Department of Biomolecular Science, University of Urbino "Carlo Bo", Urbino, Italy
| | - Marco Cespi
- School of Pharmacy, University of Camerino, Via S. Agostino 1, 62032 Camerino, MC, Italy
| | - Giulia Bonacucina
- School of Pharmacy, University of Camerino, Via S. Agostino 1, 62032 Camerino, MC, Italy
| | - Wally Baffone
- Department of Biomolecular Science, University of Urbino "Carlo Bo", Urbino, Italy
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41
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Duarte A, Luís Â, Oleastro M, Domingues FC. Antioxidant properties of coriander essential oil and linalool and their potential to control Campylobacter spp. Food Control 2016. [DOI: 10.1016/j.foodcont.2015.09.033] [Citation(s) in RCA: 96] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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42
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Alves S, Duarte A, Sousa S, Domingues FC. Study of the major essential oil compounds of Coriandrum sativum against Acinetobacter baumannii and the effect of linalool on adhesion, biofilms and quorum sensing. BIOFOULING 2016; 32:155-165. [PMID: 26901586 DOI: 10.1080/08927014.2015.1133810] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Accepted: 12/10/2015] [Indexed: 06/05/2023]
Abstract
Acinetobacter baumannii is a pathogen that has the ability to adhere to surfaces in the hospital environment and to form biofilms which are increasingly resistant to antimicrobial agents. The aim of this work was to study the antimicrobial activity of the major oil compounds of Coriandrum sativum against A. baumannii. The effect of linalool on planktonic cells and biofilms of A. baumannii on different surfaces, as well as its effect on adhesion and quorum sensing was evaluated. From all the compounds evaluated, linalool was the compound with the best antibacterial activity, with minimum inhibitory concentration values between 2 and 8 μl ml(-1). Linalool also inhibited biofilm formation and dispersed established biofilms of A. baumannii, changed the adhesion of A. baumannii to surfaces and interfered with the quorum- sensing system. Thus, linalool could be a promising antimicrobial agent for controlling planktonic cells and biofilms of A. baumannii.
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Affiliation(s)
- Susana Alves
- a CICS-UBI - Health Sciences Research Centre , University of Beira Interior , Covilhã , Portugal
| | - Andreia Duarte
- a CICS-UBI - Health Sciences Research Centre , University of Beira Interior , Covilhã , Portugal
| | - Sónia Sousa
- b Fiber Materials and Environmental Technologies Research Unit , University of Beira Interior , Covilhã , Portugal
| | - Fernanda C Domingues
- a CICS-UBI - Health Sciences Research Centre , University of Beira Interior , Covilhã , Portugal
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Amaral VCS, Santos PR, da Silva AF, dos Santos AR, Machinski M, Mikcha JMG. Effect of carvacrol and thymol onSalmonellaspp. biofilms on polypropylene. Int J Food Sci Technol 2015. [DOI: 10.1111/ijfs.12934] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Viviane C. S. Amaral
- Postgraduate Program in Health Science; State University of Maringá; Colombo Avenue 5790 Maringá Paraná Brazil
| | - Patrícia R. Santos
- Postgraduate Program in Health Science; State University of Maringá; Colombo Avenue 5790 Maringá Paraná Brazil
| | - Alex Fiori da Silva
- Postgraduate Program in Health Science; State University of Maringá; Colombo Avenue 5790 Maringá Paraná Brazil
| | | | - Miguel Machinski
- Postgraduate Program in Health Science; State University of Maringá; Colombo Avenue 5790 Maringá Paraná Brazil
- Postgraduate Program in Food Science; State University of Maringá; Colombo Avenue 5790 Maringá Paraná Brazil
- Department of Basic Health Sciences; State University of Maringá; Colombo Avenue 5790 Maringá Paraná Brazil
| | - Jane M. Graton Mikcha
- Postgraduate Program in Health Science; State University of Maringá; Colombo Avenue 5790 Maringá Paraná Brazil
- Postgraduate Program in Food Science; State University of Maringá; Colombo Avenue 5790 Maringá Paraná Brazil
- Department of Clinical Analysis and Biomedicine; State University of Maringá; Colombo Avenue 5790 Maringá Paraná Brazil
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Sadekuzzaman M, Yang S, Mizan M, Ha S. Current and Recent Advanced Strategies for Combating Biofilms. Compr Rev Food Sci Food Saf 2015. [DOI: 10.1111/1541-4337.12144] [Citation(s) in RCA: 152] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- M. Sadekuzzaman
- School of Food Science and Technology; Chung-Ang Univ; 72-1 Nae-Ri Daedeok-Myun, Anseong Gyunggido 456-756 South Korea Dept. of Livestock Services, People's Republic of Bangladesh
| | - S. Yang
- Chung-Ang Univ; 72-1 Nae-Ri Daedeok-Myun, Anseong Gyunggido 456-756 South Korea
| | - M.F.R. Mizan
- Chung-Ang Univ; 72-1 Nae-Ri Daedeok-Myun, Anseong Gyunggido 456-756 South Korea
| | - S.D. Ha
- Chung-Ang Univ; 72-1 Nae-Ri Daedeok-Myun, Anseong Gyunggido 456-756 South Korea
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Patel S. Plant essential oils and allied volatile fractions as multifunctional additives in meat and fish-based food products: a review. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2015; 32:1049-64. [DOI: 10.1080/19440049.2015.1040081] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Shaaban HA, Sadek Z, Edris AE, Saad-Hussein A. Analysis and antibacterial activity of Nigella sativa essential oil formulated in microemulsion system. J Oleo Sci 2015; 64:223-32. [PMID: 25748382 DOI: 10.5650/jos.ess14177] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The Essential oil (EO) of Nigella sativa (black cumin) was extracted from the crude oil and the volatile constituents were characterized using gas chromatographic analysis. The EO was formulated in water-based microemulsion system and its antibacterial activity against six pathogenic bacteria was evaluated using the agar well diffusion method. This activity was compared with two other well known biologically active natural and synthetic antimicrobials namely eugenol and Ceftriaxone(®). Results showed that N. sativa EO microemulsion was highly effective against S. aureus, B. cereus and S. typhimurium even at the lowest tested concentration of that EO in the microemulsion (100.0 μg/well). Interestingly, the EO microemulsion showed higher antibacterial activity than Ceftriaxone solution against S. typhimurium at 400.0 μg/well and almost comparable activity against E. coli at 500.0 μg/well. No activity was detected for the EO microemulsion against L. monocytogenes and P. aeruginosa. Eugenol which was also formulated in microemulsion was less effective than N. sativa EO microemulsion except against P. aeruginosa. The synthetic antibiotic (Ceftriaxone) was effective against most of the six tested bacterial strains. This work is the first report revealing the formulation of N. sativa EO in microemulsion system and investigating its antibacterial activity. The results may offer potential application of that water-based microemulsion in controlling the prevalence of some pathogenic bacteria.
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Affiliation(s)
- Hamdy A Shaaban
- Aroma & Flavor Chemistry Department, National Research Center
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