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Melian C, Ploper D, Chehín R, Vignolo G, Castellano P. Impairment of Listeria monocytogenes biofilm developed on industrial surfaces by Latilactobacillus curvatus CRL1579 bacteriocin. Food Microbiol 2024; 121:104491. [PMID: 38637093 DOI: 10.1016/j.fm.2024.104491] [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: 01/08/2024] [Revised: 02/02/2024] [Accepted: 02/13/2024] [Indexed: 04/20/2024]
Abstract
The effect of lactocin AL705, bacteriocin produced by Latilactobacillus (Lat.) curvatus CRL1579 against Listeria biofilms on stainless steel (SS) and polytetrafluoroethylene (PTFE) coupons at 10 °C was investigated. L. monocytogenes FBUNT showed the greatest adhesion on both surfaces associated to the hydrophobicity of cell surface. Partially purified bacteriocin (800 UA/mL) effectively inhibited L. monocytogenes preformed biofilm through displacement strategy, reducing the pathogen by 5.54 ± 0.26 and 4.74 ± 0.05 log cycles at 3 and 6 days, respectively. The bacteriocin-producer decreased the pathogen biofilm by ∼2.84 log cycles. Control and Bac- treated samples reached cell counts of 7.05 ± 0.18 and 6.79 ± 0.06 log CFU/cm2 after 6 days of incubation. Confocal scanning laser microscopy (CLSM) allowed visualizing the inhibitory effect of lactocin AL705 on L. monocytogenes preformed biofilms under static and hydrodynamic flow conditions. A greater effect of the bacteriocin was found at 3 days independently of the surface matrix and pathogen growth conditions at 10 °C. As a more realistic approach, biofilm displacement strategy under continuous flow conditions showed a significant loss of biomass, mean thickness and substratum coverage of pathogen biofilm. These findings highlight the anti-biofilm capacity of lactocin AL705 and their potential application in food industries.
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Affiliation(s)
- Constanza Melian
- Centro de Referencia para Lactobacilos (CERELA-CONICET), Chacabuco 145, T4000ILC, Tucumán, Argentina
| | - Diego Ploper
- IMMCA (Instituto de Investigación en Medicina Molecular y Celular Aplicada, CONICET-Universidad Nacional de Tucumán-Ministerio de Salud Pública, Gobierno de Tucumán, Pje. Dorrego 1080, San Miguel de Tucumán, 4000, Tucumán, Argentina
| | - Rosana Chehín
- IMMCA (Instituto de Investigación en Medicina Molecular y Celular Aplicada, CONICET-Universidad Nacional de Tucumán-Ministerio de Salud Pública, Gobierno de Tucumán, Pje. Dorrego 1080, San Miguel de Tucumán, 4000, Tucumán, Argentina
| | - Graciela Vignolo
- Centro de Referencia para Lactobacilos (CERELA-CONICET), Chacabuco 145, T4000ILC, Tucumán, Argentina
| | - Patricia Castellano
- Centro de Referencia para Lactobacilos (CERELA-CONICET), Chacabuco 145, T4000ILC, Tucumán, Argentina.
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Capri FC, Gaglio R, Botta L, Settanni L, Alduina R. Selection of starter lactic acid bacteria capable of forming biofilms on wooden vat prototypes for their future application in traditional Sicilian goat's milk cheese making. Int J Food Microbiol 2024; 419:110752. [PMID: 38781647 DOI: 10.1016/j.ijfoodmicro.2024.110752] [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: 02/22/2024] [Revised: 05/13/2024] [Accepted: 05/16/2024] [Indexed: 05/25/2024]
Abstract
In this study, 327 presumptive lactic acid bacteria (LAB) were isolated from goats' milk acid curds produced at a Sicilian dairy farm with the aim to identify potential starter cultures for traditional cheeses. All isolates were first processed by randomly amplified polymorphic DNA (RAPD)-PCR analysis. This approach identified 63 distinct strains which were evaluated for their acidifying capacity. Only 15 strains specifically stood out for their acidification capacity and were identified through 16S rRNA gene sequencing as Lactococcus lactis (11 strains) Enterococcus faecalis (three strains), and Ligilactobacillus animalis (one strain). Notably, all 15 LAB isolates produced bacteriocin-like inhibitory substances and anti-biofilm compounds, against both planktonic and biofilm forms of Listeria monocytogenes, Salmonella Enteritidis, Escherichia coli, and Staphylococcus aureus, albeit at varying levels. Among these 15 LAB, En. faecalis RGM25 and Lc. lactis RGM55, susceptible to five antibiotics tested, were put in contact with wooden vat prototypes, because all equipment used in traditional cheese production in Sicily are made of wood. Scanning electron microscopy and bacterial plate counts of the wooden vat prototypes showed the development of biofilms at levels of approximately 6.0 log CFU/cm2. Overall, this study contributes to establishing a custom-made LAB starter cultures with bio-preservatives properties for Sicilian cheese productions.
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Affiliation(s)
- Fanny Claire Capri
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Viale delle Scienze Bldg. 16-17, 90128 Palermo, Italy
| | - Raimondo Gaglio
- Department of Agricultural, Food and Forest Sciences (SAAF), University of Palermo, Viale delle Scienze, Bldg. 5, 90128 Palermo, Italy.
| | - Luigi Botta
- Department of Engineering, RU INSTM, University of Palermo, Viale delle Scienze, Bldg. 6, 90128 Palermo, Italy
| | - Luca Settanni
- Department of Agricultural, Food and Forest Sciences (SAAF), University of Palermo, Viale delle Scienze, Bldg. 5, 90128 Palermo, Italy
| | - Rosa Alduina
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Viale delle Scienze Bldg. 16-17, 90128 Palermo, Italy; National Biodiversity Future Center (NBFC), Piazza Marina, 61, 90133 Palermo, Italy
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Oliveira TFD, Kuniyoshi TM, Frota EG, Bermúdez-Puga S, Sakaue LN, Cassiano LL, Tachibana L, Piccoli RAM, Converti A, Oliveira RPDS. Anti-Listerial Activity of Bacteriocin-like Inhibitory Substance Produced by Enterococcus lactis LBM BT2 Using Alternative Medium with Sugarcane Molasses. Antibiotics (Basel) 2024; 13:210. [PMID: 38534645 DOI: 10.3390/antibiotics13030210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 02/17/2024] [Accepted: 02/20/2024] [Indexed: 03/28/2024] Open
Abstract
Listeria monocytogenes is a foodborne pathogen that contaminates food-processing environments and persists within biofilms on equipment, thus reaching final products by cross-contamination. With the growing demand for clean-label products, the search for natural antimicrobials as biopreservants, such as bacteriocins, has shown promising potential. In this context, this study aimed to evaluate the anti-listerial action of bacteriocins produced by Enterococcus lactis LBM BT2 in an alternative medium containing sugarcane molasses (SCM). Molecular analyses were carried out to characterize the strain, including the presence of bacteriocin-related genes. In the kinetic study on SCM medium E. lactis, LBM BT2 showed biomass and bacteriocin productions similar to those observed on a sucrose-based medium (control), highlighting the potential of the sugarcane molasses as a low-cost substrate. Stability tests revealed that the molecule remained active in wide ranges of pH (4-10) and temperature (60-100 °C). Furthermore, the proteolytic treatment reduced the biomolecule's antimicrobial activity, highlighting its proteinaceous nature. After primary purification by salting out and tangential flow filtration, the bacteriocin-like inhibitory substance (BLIS) showed bacteriostatic activity on suspended L. monocytogenes cells and against biofilm formation at a concentration of 0.625 mg/mL. These results demonstrate the potential of the produced BLIS as a biopreservative in the food industry.
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Affiliation(s)
- Taciana Freire de Oliveira
- Laboratory of Microbial Biomolecules, School of Pharmaceutical Sciences, University of São Paulo, Rua do Lago, 250, São Paulo 05508-000, Brazil
| | - Taís Mayumi Kuniyoshi
- Laboratory of Microbial Biomolecules, School of Pharmaceutical Sciences, University of São Paulo, Rua do Lago, 250, São Paulo 05508-000, Brazil
| | - Elionio Galvão Frota
- Laboratory of Microbial Biomolecules, School of Pharmaceutical Sciences, University of São Paulo, Rua do Lago, 250, São Paulo 05508-000, Brazil
| | - Sebastián Bermúdez-Puga
- Laboratory of Microbial Biomolecules, School of Pharmaceutical Sciences, University of São Paulo, Rua do Lago, 250, São Paulo 05508-000, Brazil
| | - Letícia Naomy Sakaue
- Laboratory of Microbial Biomolecules, School of Pharmaceutical Sciences, University of São Paulo, Rua do Lago, 250, São Paulo 05508-000, Brazil
| | - Luara Lucena Cassiano
- Aquaculture Research Center, Scientific Research of Fisheries Institute, APTA, SAA, Av. Conselheiro Rodrigues Alves, 1252, São Paulo 04014-002, Brazil
| | - Leonardo Tachibana
- Aquaculture Research Center, Scientific Research of Fisheries Institute, APTA, SAA, Av. Conselheiro Rodrigues Alves, 1252, São Paulo 04014-002, Brazil
| | - Rosane Aparecida Moniz Piccoli
- Bionanomanufacturing Nucleus, Institute for Technological Research (IPT), Av. Prof. Almeida Prado, 532, São Paulo 05508-901, Brazil
| | - Attilio Converti
- Department of Civil, Chemical and Environmental Engineering, Pole of Chemical Engineering, University of Genoa, Via Opera Pia 15, 16145 Genoa, Italy
| | - Ricardo Pinheiro de Souza Oliveira
- Laboratory of Microbial Biomolecules, School of Pharmaceutical Sciences, University of São Paulo, Rua do Lago, 250, São Paulo 05508-000, Brazil
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Mgomi FC, Yang YR, Cheng G, Yang ZQ. Lactic acid bacteria biofilms and their antimicrobial potential against pathogenic microorganisms. Biofilm 2023; 5:100118. [PMID: 37125395 PMCID: PMC10139968 DOI: 10.1016/j.bioflm.2023.100118] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 03/30/2023] [Accepted: 03/30/2023] [Indexed: 04/08/2023] Open
Abstract
The continuous growth of pathogenic microorganisms and associated biofilms poses severe public health challenges, particularly in food and clinical environments. However, these difficulties have enabled scientists to develop novel and safe methods for combating pathogens. The use of biofilms produced by lactic acid bacteria (LAB) against pathogenic bacteria has recently gained popularity. This review provides an in-depth look at LAB biofilms, their distribution, and mechanisms of action against pathogenic bacteria. More importantly, the bioactive substances produced by LAB-forming biofilm may be active against undesirable microorganisms and their products, which is of great interest in improving human health. Therefore, this review implies that a combination of LAB biofilms and other LAB products like bacteriocins could provide viable alternatives to traditional methods of combating pathogenic microorganisms and their biofilms.
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Ramalho R, de Souza NAA, Moreira TFM, De Oliveira A, Perini HF, Furlaneto MC, Leimann FV, Furlaneto-Maia L. Antibacterial efficacy of Enterococcus microencapsulated bacteriocin on Listeria monocytogenes, Listeria innocua and Listeria ivanovi. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2023; 60:262-271. [PMID: 36618045 PMCID: PMC9813327 DOI: 10.1007/s13197-022-05611-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 08/26/2022] [Accepted: 09/16/2022] [Indexed: 12/14/2022]
Abstract
This study focused on the microencapsulation of enterocin from Enterococcus durans (E. durans MF5) in whey powder (WP) using a spray-drying technique followed by the evaluation of how complexation can preserve the enterocin structure and antimicrobial activity against food-borne pathogens. Crude enterocin samples (1 and 5%) were microencapsulated in 10% WP. The antimicrobial activity of unencapsulated (crude) enterocin and microencapsulated enterocin was tested against the target bacteria Salmonella Typhimurium, Escherichia coli, Listeria monocytogenes, Listeria innocua, and Listeria ivanovi. The microencapsulation yields were 31.66% and 34.16% for concentrations of 1 and 5% enterocin, respectively. There was no significant difference between these concentrations. Microencapsulated enterocin was efficient for up to 12 h of cocultivation with Listeria sp., and the concentration required to inhibit the growth of target bacteria presented values of 6400 AU/mL (arbitrary unit). Microencapsulated enterocin demonstrated enhanced efficacy against Listeria species and E. coli when compared with crude enterocin (p < 0.05). Fourier transform-infrared spectroscopy and differential scanning calorimetry results confirmed the presence of enterocin in the microparticles. Scanning electron microscopy showed cell damage of the target bacteria. The results showed that complexation with WP preserved enterocin antimicrobial activity during spray-drying, indicating its potential use as a food preservative.
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Affiliation(s)
- Regiane Ramalho
- Post-Graduation Program of Food Technology (PPGTA), Federal University of Technology-Paraná, Campus Campo Mourão (UTFPR-CM), Via Rosalina Maria Dos Santos, 1233, Campo Mourão, Paraná CEP 87301-899 Brazil
| | | | - Thaysa Fernandes Moya Moreira
- Post-Graduation Program of Food Technology (PPGTA), Federal University of Technology-Paraná, Campus Campo Mourão (UTFPR-CM), Via Rosalina Maria Dos Santos, 1233, Campo Mourão, Paraná CEP 87301-899 Brazil
| | - Anielle De Oliveira
- Post-Graduation Program of Food Technology (PPGTA), Federal University of Technology-Paraná, Campus Campo Mourão (UTFPR-CM), Via Rosalina Maria Dos Santos, 1233, Campo Mourão, Paraná CEP 87301-899 Brazil
| | - Hugo Felix Perini
- Department of Microbiology, State University of Londrina, C.P. 6001, Londrina, Paraná 86051990 Brazil
| | - Márcia Cristina Furlaneto
- Department of Microbiology, State University of Londrina, C.P. 6001, Londrina, Paraná 86051990 Brazil
| | - Fernanda Vitória Leimann
- Post-Graduation Program of Food Technology (PPGTA), Federal University of Technology-Paraná, Campus Campo Mourão (UTFPR-CM), Via Rosalina Maria Dos Santos, 1233, Campo Mourão, Paraná CEP 87301-899 Brazil
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus Santa Apolónia, 5300-253 Bragança, Portugal
| | - Luciana Furlaneto-Maia
- Post-Graduation Program of Food Technology (PPGTA), Federal University of Technology-Paraná, Campus Londrina (UTFPR-LD), Av Dos Pioneiros 3131, Londrina, Paraná CEP 86036-370 Brazil
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Teixeira GTL, Gelamo RV, Mateus Santos Obata M, Andrade Silva LED, Silva MVD, Oliveira CJFD, Silva BPD, Aoki IV, Moreto JA, Slade NBL. Exploring the functionalization of Ti-6Al-4V alloy with the novel antimicrobial peptide JIChis-2 via plasma polymerization. BIOFOULING 2023; 39:47-63. [PMID: 36856008 DOI: 10.1080/08927014.2023.2183121] [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: 11/10/2022] [Revised: 02/14/2023] [Accepted: 02/15/2023] [Indexed: 06/18/2023]
Abstract
This study aimed to characterize the immobilization of the novel JIChis-2 peptide on the Ti-6Al-4V alloy, widely used in the biomedical sector. The antimicrobial activity of JIChis-2 was evaluated in the Gram-negative bacterium E. coli. Its immobilization occurred by inducing the formation of covalent bonds between the N-terminus of the peptides and the surface previously submitted to acrylic acid polymerization via the PECVD technique. Coated and uncoated surfaces were characterized by FTIR, AFM, SEM and EDX. Studies of global and localized corrosion were carried out, seeking to explore the effects triggered by surface treatment in an aggressive environment. Additionally, the ability of the functionalized material to prevent E. coli biofilm formation evidenced that the strategy to immobilize JIChis-2 in the Ti-6Al-4V alloy via PECVD of acrylic acid resulted in the development of a functional material with antibiofilm properties.
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Affiliation(s)
- Gabriella Teresinha Lima Teixeira
- Institute of Exact and Natural Sciences and Education, Federal University of Triângulo Mineiro (UFTM), Univerdecidade, Uberaba, Minas Gerais, Brazil
- Department of Physics, Federal University of Triângulo Mineiro (UFTM), Uberaba, Minas Gerais, Brazil
| | - Rogério Valentim Gelamo
- Department of Physics, Federal University of Triângulo Mineiro (UFTM), Uberaba, Minas Gerais, Brazil
- Institute of Technological and Exact Sciences, Federal University of Triângulo Mineiro (UFTM), Univerdecidade, Uberaba, Minas Gerais, Brazil
| | - Malu Mateus Santos Obata
- Department of Immunology, Microbiology and Parasitology, Federal University of Triângulo Mineiro, Uberaba, Minas Gerais, Brazil
| | | | - Marcos Vinícius da Silva
- Department of Immunology, Microbiology and Parasitology, Federal University of Triângulo Mineiro, Uberaba, Minas Gerais, Brazil
| | - Carlo José Freire de Oliveira
- Department of Immunology, Microbiology and Parasitology, Federal University of Triângulo Mineiro, Uberaba, Minas Gerais, Brazil
| | - Brunela Pereira da Silva
- Polytechnic School, Chemical Engineering Department, University of São Paulo, Av. Prof. Luciano Gualberto, São Paulo, São Paulo, Brazil
| | - Idalina Vieira Aoki
- Polytechnic School, Chemical Engineering Department, University of São Paulo, Av. Prof. Luciano Gualberto, São Paulo, São Paulo, Brazil
| | - Jeferson Aparecido Moreto
- Institute of Exact and Natural Sciences and Education, Federal University of Triângulo Mineiro (UFTM), Univerdecidade, Uberaba, Minas Gerais, Brazil
- Department of Physics, Federal University of Triângulo Mineiro (UFTM), Uberaba, Minas Gerais, Brazil
| | - Natália Bueno Leite Slade
- Institute of Exact and Natural Sciences and Education, Federal University of Triângulo Mineiro (UFTM), Univerdecidade, Uberaba, Minas Gerais, Brazil
- Department of Physics, Federal University of Triângulo Mineiro (UFTM), Uberaba, Minas Gerais, Brazil
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Furlaneto-Maia L, Mücke N, Furlaneto M. Enterococci in the dairy and sausage industry: Is sanitation sufficient to remove biofilm? ACTA ALIMENTARIA 2022. [DOI: 10.1556/066.2022.00155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
AbstractEnterococcus spp. were isolated from sausage and yogurt line production. The genomic assay was performed by PCR, and distinct enterococci (n = 28) were identified. Testing revealed that 10.7% of the isolates had a resistant phenotype, 7.1% were resistant to erythromycin (Enterococcus faecium) and 3.5% were resistant to tetracycline (Enterococcus gallinarum). Enterococci cells and biofilm formation in 24 well polystyrene plates and the effect of sanitisation procedures in these biofilms were determined. The sanitisers were chlorinated alkaline H (CAH), chlorinated alkaline A (CAA), quaternary ammonium D (QAD), quaternary ammonium M (QAM), chlorine dioxide (CD), sodium hypochlorite (SH), and peracetic acid (PA). A total of 7 isolates (25%) moderately and the others poorly formed biofilms. The best reduction results were 61 and 55% of the cells with the CAH sanitiser in BHI and water, respectively. The PAA, SH, and CD sanitisers showed low efficiency on Enterococcus planctonics, and the other had an effect on cell growth. The sanitisers CAH, QAD, QAM, PAA, and SH showed efficiency in reducing the cell viability of Enterococcus in biofilms, and values obtained from CAA and CD suggested low biofilm removal capacity. Enterococcus spp. form biofilms and have become a problem in the food industry.
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Affiliation(s)
- L. Furlaneto-Maia
- Post-Graduation Program of Food Technology, Federal University of Technology of the Paraná State, Campus Londrina (UTFPR-LD), Av. dos Pioneiros 3131 CEP 86036-370, Londrina, Paraná, Brazil
| | - N. Mücke
- Post-Graduation Program of Food Technology, Federal University of Technology of the Paraná State, Campus Londrina (UTFPR-LD), Av. dos Pioneiros 3131 CEP 86036-370, Londrina, Paraná, Brazil
| | - M.C. Furlaneto
- Department of Microbiology, State University of Londrina, C.P. 6001, CEP 86051990, Londrina, Paraná, Brazil
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Antimicrobial activity against Staphylococcus aureus and genome features of Lactiplantibacillus plantarum LR-14 from Sichuan pickles. Arch Microbiol 2022; 204:637. [PMID: 36127470 DOI: 10.1007/s00203-022-03232-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 08/27/2022] [Accepted: 08/30/2022] [Indexed: 11/02/2022]
Abstract
The persistence of Staphylococcus aureus within biofilm can lead to contamination of medical devices and life-threatening infections. Luckily, lactic acid bacteria (LAB) have an inhibitory effect on the growth of these bacteria. This study aims to select LAB strains from fermented vegetables, and analyze their potential inhibition activities against S. aureus. In total, 45 isolates of LAB were successfully isolated from Sichuan pickles, and the CFS of Lactiplantibacillus plantarum LR-14 exerted the strongest inhibitory effect against S. aureus. Moreover, S. aureus cells in planktonic and biofilm states both wrinkled and damaged when treated with the CFS of L. plantarum LR-14. In addition, whole genome sequencing analysis indicates that L. plantarum LR-14 contains various functional genes, including predicted extracellular polysaccharides (EPS) biosynthesis genes, and genes participating in the synthesis and metabolism of fatty acid, implying that L. plantarum LR-14 has the potential to be used as a probiotic with multiple functions.
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Modulatory Impacts of Multi-Strain Probiotics on Rabbits’ Growth, Nutrient Transporters, Tight Junctions and Immune System to Fight against Listeria monocytogenes Infection. Animals (Basel) 2022; 12:ani12162082. [PMID: 36009671 PMCID: PMC9405287 DOI: 10.3390/ani12162082] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 08/01/2022] [Accepted: 08/08/2022] [Indexed: 12/18/2022] Open
Abstract
Simple Summary Weaning is a crucial period associated with great stress and susceptibility to infection, implying adverse impacts on farmed rabbits’ production. Recently, probiotics have been provided as direct microbial feed supplements, which are considered the ideal antibiotic substitutes during pathogenic infections with an emphasis on promoting rabbits’ growth and modulating their immune functions. Therefore, our experiment was carried out to explore the efficacy of multi-strain probiotics (MSP) on rabbits’ growth, molecular aspects, such as nutrients transporters, cytokines, and intestinal integrity, and effectiveness against Listeria monocytogenes (L. monocytogenes) infection. Altogether, our findings proposed the beneficial consequences of MSP on rabbits’ growth, gut health, and immunity. After post-experimental infection of rabbits with L. monocytogenes, administration of MSP during the whole rearing period greatly reduced the detrimental impact of infection and consequently renovated efficient rabbits’ production. Abstract Multi-strain probiotics (MSP) are considered innovative antibiotics’ substitutes supporting superior gut health and immunity of farmed rabbits. The promising roles of MSP on performance, intestinal immunity, integrity and transporters, and resistance against Listeria monocytogenes (L. monocytogenes) were evaluated. In the feeding trial, 220 rabbits were fed a control diet or diet supplemented with three MSP graded levels. At 60 days of age, rabbits were experimentally infected with L. monocytogenes and the positive control, enrofloxacin, prophylactic MSP (MSPP), and prophylactic and therapeutic MSP (MSPTT) groups were included. During the growing period, MSP at the level of 1 × 108 CFU/kg diet (MSPIII) promoted the rabbits’ growth, upregulated the nutrient transporters and tight-junction-related genes, and modified cytokines expression. Supplementing MSPTT for L. monocytogenes experimentally-infected rabbits restored the impaired growth and intestinal barriers, reduced clinical signs of severity and mortalities, and attenuated the excessive inflammatory reactions. Notably, enrofloxacin decreased L. monocytogenes and beneficial microbial loads; unlike MSPTT, which decreased pathogenic bacterial loads and sustained the beneficial ones. Histopathological changes were greatly reduced in MSPTT, confirming its promising role in restricting L. monocytogenes translocation to different organs. Therefore, our results suggest the use of MSPTT as an alternative to antibiotics, thereby conferring protection for rabbits against L. monocytogenes infection.
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Melian C, Bentencourt E, Castellano P, Ploper D, Vignolo G, Mendoza LM. Biofilm genes expression of Listeria monocytogenes exposed to Latilactobacillus curvatus bacteriocins at 10 °C. Int J Food Microbiol 2022; 370:109648. [DOI: 10.1016/j.ijfoodmicro.2022.109648] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 03/10/2022] [Accepted: 03/24/2022] [Indexed: 10/18/2022]
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Pang X, Song X, Chen M, Tian S, Lu Z, Sun J, Li X, Lu Y, Yuk HG. Combating biofilms of foodborne pathogens with bacteriocins by lactic acid bacteria in the food industry. Compr Rev Food Sci Food Saf 2022; 21:1657-1676. [PMID: 35181977 DOI: 10.1111/1541-4337.12922] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 12/30/2021] [Accepted: 01/07/2022] [Indexed: 12/17/2022]
Abstract
Most foodborne pathogens have biofilm-forming capacity and prefer to grow in the form of biofilms. Presence of biofilms on food contact surfaces can lead to persistence of pathogens and the recurrent cross-contamination of food products, resulting in serious problems associated with food safety and economic losses. Resistance of biofilm cells to conventional sanitizers urges the development of natural alternatives to effectively inhibit biofilm formation and eradicate preformed biofilms. Lactic acid bacteria (LAB) produce bacteriocins which are ribosomally synthesized antimicrobial peptides, providing a great source of nature antimicrobials with the advantages of green and safe properties. Studies on biofilm control by newly identified bacteriocins are increasing, targeting primarily onListeria monocytogenes, Staphylococcus aureus, Salmonella, and Escherichia coli. This review systematically complies and assesses the antibiofilm property of LAB bacteriocins in controlling foodborne bacterial-biofilms on food contact surfaces. The bacteriocin-producing LAB genera/species, test method (inhibition and eradication), activity spectrum and surfaces are discussed, and the antibiofilm mechanisms are also argued. The findings indicate that bacteriocins can effectively inhibit biofilm formation in a dose-dependent manner, but are difficult to disrupt preformed biofilms. Synergistic combination with other antimicrobials, incorporation in nanoconjugates and implementation of bioengineering can help to strengthen their antibiofilm activity. This review provides an overview of the potential and application of LAB bacteriocins in combating bacterial biofilms in food processing environments, assisting in the development and widespread use of bacteriocin as a promising antibiofilm-agent in food industries.
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Affiliation(s)
- Xinyi Pang
- College of Food Science and Engineering, Nanjing University of Finance and Economics, Nanjing, China
| | - Xiaoye Song
- College of Food Science and Engineering, Nanjing University of Finance and Economics, Nanjing, China
| | - Minjie Chen
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Shuhua Tian
- College of Food Science and Engineering, Nanjing University of Finance and Economics, Nanjing, China
| | - Zhaoxin Lu
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Jing Sun
- College of Food Science and Engineering, Nanjing University of Finance and Economics, Nanjing, China
| | - Xiangfei Li
- College of Food Science and Engineering, Nanjing University of Finance and Economics, Nanjing, China
| | - Yingjian Lu
- College of Food Science and Engineering, Nanjing University of Finance and Economics, Nanjing, China
| | - Hyun-Gyun Yuk
- Department of Food Science and Technology, Korea National University of Transportation, Chungbuk, Republic of Korea
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COSTA PV, NASCIMENTO JDS, COSTA LEDO, FERREIRA PBDM, BRANDÃO MLL. Listeria monocytogenes: challenges of microbiological control of food in Brazil. FOOD SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1590/fst.08322] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
| | | | | | | | - Marcelo Luiz Lima BRANDÃO
- Instituto Federal de Educação, Ciência e Tecnologia do Rio de Janeiro, Brasil; Fundação Oswaldo Cruz, Brasil
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Comerlato CB, Prichula J, Siqueira FM, Ritter AC, Varela APM, Mayer FQ, Brandelli A. Genomic analysis of Enterococcus durans LAB18S, a potential probiotic strain isolated from cheese. Genet Mol Biol 2022; 45:e20210201. [PMID: 35244137 PMCID: PMC8894896 DOI: 10.1590/1678-4685-gmb-2021-0201] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 01/03/2022] [Indexed: 01/15/2023] Open
Abstract
Gut microbiota exerts a fundamental role in human health and increased evidence supports the beneficial role of probiotic microorganisms in the maintenance of intestinal health. Enterococcus durans LAB18S was previously isolated from soft cheese and showed some desirable in vitro probiotic properties, for that reason its genome was sequenced and evaluated for genes that can be relevant for probiotic activity and are involved in selenium metabolism. Genome sequencing was performed using the Illumina MiSeq System. A variety of genes potentially associated with probiotic properties, including adhesion capability, viability at low pH, bile salt resistance, antimicrobial activity, and utilization of prebiotic fructooligosaccharides (FOS) were identified. The strain showed tolerance to acid pH and bile salts, exhibited antimicrobial activity and thrived on prebiotic oligosaccharides. Six genes involved in selenium metabolism were predicted. Analysis of the SECIS element showed twelve known selenoprotein candidates. E. durans LAB18S was the only food isolate showing absence of plasmids, virulence and antimicrobial resistance genes, when compared with other 30 E. durans genomes. The results of this study provide evidence supporting the potential of E. durans LAB18S as alternative for probiotic formulations.
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Affiliation(s)
| | - Janira Prichula
- Universidade Federal de Ciências da Saúde de Porto Alegre, Brazil
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Lee JS, Park SW, Lee HB, Kang SS. Bacteriocin-Like Inhibitory Substance (BLIS) Activity of Enterococcus faecium DB1 Against Biofilm Formation by Clostridium perfringens. Probiotics Antimicrob Proteins 2021; 13:1452-1457. [PMID: 34173207 DOI: 10.1007/s12602-021-09813-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/18/2021] [Indexed: 02/01/2023]
Abstract
The antibiofilm effect of bacteriocin-like inhibitory substance (BLIS) from Enterococcus faecium DB1 against Clostridium perfringens was investigated in the present study. BLIS of E. faecium DB1 significantly reduced biofilm formation by C. perfringens in a dose-dependent manner for 24 and 48 h. In particular, treatment with BLIS of E. faecium DB1 significantly inhibited biofilm formation by C. perfringens on chicken meat and stainless steel coupon surfaces. Moreover, BLIS of E. faecium DB1 decreased the viability of C. perfringens biofilm and planktonic cells, indicating that the reduction of biofilm formation by C. perfringens might be achieved by killing the bacterial cells. Taken together, the present results suggest that BLIS of E. faecium DB1 can be a promising antibiofilm agent to eradicate C. perfringens.
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Affiliation(s)
- Ji Soo Lee
- Department of Food Science and Biotechnology, College of Life Science and Biotechnology, Dongguk University, Goyang, 10326, Republic of Korea
| | - Sun Woo Park
- Department of Food Science and Biotechnology, College of Life Science and Biotechnology, Dongguk University, Goyang, 10326, Republic of Korea
| | - Han Bin Lee
- Department of Food Science and Biotechnology, College of Life Science and Biotechnology, Dongguk University, Goyang, 10326, Republic of Korea
| | - Seok-Seong Kang
- Department of Food Science and Biotechnology, College of Life Science and Biotechnology, Dongguk University, Goyang, 10326, Republic of Korea.
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Ghoreishi FS, Roghanian R, Emtiazi G. Novel Chronic Wound Healing by Anti-biofilm Peptides and Protease. Adv Pharm Bull 2021; 12:424-436. [PMID: 35935044 PMCID: PMC9348543 DOI: 10.34172/apb.2022.047] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 01/23/2021] [Accepted: 03/25/2021] [Indexed: 11/25/2022] Open
Abstract
Chronic wounds have made a challenge in medical healthcare due to their biofilm infections, which reduce the penetrance of the antibacterial agents in the injury site. In infected wounds, the most common bacterial strains are Staphylococcus aureus and Pseudomonas aeruginosa. Biofilm disruption in chronic wounds is crucial in wound healing. Due to their broad-spectrum antibacterial properties and fewer side effects, anti-biofilm peptides, especially bacteriocins, are promising in the healing of chronic wounds by biofilm destruction. This study reviews the effects of antimicrobial and anti-biofilm agents, including bacteriocins and protease enzymes as a novel approach, on wound healing, along with analyzing the molecular docking between a bacterial protease and biofilm components. Among a large number of anti-biofilm bacteriocins identified up to now, seven types have been registered in the antimicrobial peptides (AMPs) database. Although it is believed that bacterial proteases are harmful in wound healing, it has recently been demonstrated that these proteases like the human serine protease, in combination with AMPs, can improve wound healing by biofilm destruction. In this work, docking results between metalloprotease from Paenibacillus polymyxa and proteins of S. aureus and P. aeruginosa involved in biofilm production, showed that this bacterial protease could efficiently interact with biofilm components. Infected wound healing is an important challenge in clinical trials due to biofilm production by bacterial pathogens. Therefore, simultaneous use of proteases or anti-biofilm peptides with antimicrobial agents could be a promising method for chronic wound healing.
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Affiliation(s)
- Fatemeh Sadat Ghoreishi
- Department of Cell and Molecular Biology & Microbiology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran
| | - Rasoul Roghanian
- Department of Cell and Molecular Biology & Microbiology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran
| | - Giti Emtiazi
- Department of Cell and Molecular Biology & Microbiology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran
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Properties of the Extracellular Polymeric Substance Layer from Minimally Grown Planktonic Cells of Listeria monocytogenes. Biomolecules 2021; 11:biom11020331. [PMID: 33671666 PMCID: PMC7926710 DOI: 10.3390/biom11020331] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 02/13/2021] [Accepted: 02/19/2021] [Indexed: 12/14/2022] Open
Abstract
The bacterium Listeria monocytogenes is a serious concern to food processing facilities because of its persistence. When liquid cultures of L. monocytogenes were prepared in defined media, it was noted that planktonic cells rapidly dropped out of suspension. Zeta potential and hydrophobicity assays found that the cells were more negatively charged (−22, −18, −10 mV in defined media D10, MCDB 202 and brain heart infusion [BHI] media, respectively) and were also more hydrophobic. A SEM analysis detected a capsular-like structure on the surface of cells grown in D10 media. A crude extract of the extracellular polymeric substance (EPS) was found to contain cell-associated proteins. The proteins were removed with pronase treatment. The remaining non-proteinaceous component was not stained by Coomassie blue dye and a further chemical analysis of the EPS did not detect significant amounts of sugars, DNA, polyglutamic acid or any other specific amino acid. When the purified EPS was subjected to attenuated total reflectance-Fourier transform infrared (ATR-FTIR) spectroscopy, the spectra obtained did not match the profile of any of the 12 reference compounds used. An x-ray diffraction (XRD) analysis showed that the EPS was amorphous and a nuclear magnetic resonance (NMR) analysis detected the presence of glycerol. An elemental energy dispersive x-ray (EDX) analysis showed traces of phosphorous as a major component. In conclusion, it is proposed that the non-proteinaceous component may be phospholipid in nature, possibly derived from the cell wall lipoteichoic acid.
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Listeria monocytogenes inhibition by lactic acid bacteria and coliforms in Brazilian fresh white cheese. Braz J Microbiol 2021; 52:847-858. [PMID: 33462722 DOI: 10.1007/s42770-021-00431-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 01/08/2021] [Indexed: 12/20/2022] Open
Abstract
INTRODUCTION Minas fresh cheese (MFC), a Brazilian white cheese, is one of the most popular cheeses nationwide. Studies have shown that Listeria monocytogenes occurrence in this product is generally low, while high populations of coliforms can be found. This study aimed to evaluate the influence of coliforms in the behavior of L. monocytogenes in MFC. METHODS Pasteurized milk was inoculated with L. monocytogenes and coliforms, and the acidification was made by lactic acid or by the addition of a starter culture. The cheeses of each production were divided into 3 groups and stored at 5 ºC, 12 ºC and cycles of 5 ºC followed by 25 ºC. In predetermined days, samples were taken and L. monocytogenes, coliforms and lactic acid bacteria populations were evaluated, besides the pH, water activity (aw), titratable acidity and NaCl concentration. RESULTS The inhibition of L. monocytogenes in the presence of coliforms was observed (p < 0.05), except for those samples prepared with lactic acid and stored at temperature cycles. The values of pH and aw were not sufficiently low to cause inhibition; however, titratable acidity was higher in cheeses containing coliforms. In vitro tests containing lactic acid and L. monocytogenes showed that the bacterium is sensitive to concentration of lactic acid ≥ 0.3%, indicating that lactic acid produced by coliforms strongly influences the population of L. monocytogenes. CONCLUSIONS Thus, it can be concluded that coliforms negatively impact populations of L. monocytogenes in MFC. We strongly recommend that producers of MFC adopt good hygiene practices to not only avoid contamination with L. monocytogenes, but also coliforms.
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Furlaneto-Maia L, Ramalho R, Rocha KR, Furlaneto MC. Antimicrobial activity of enterocins against Listeria sp. and other food spoilage bacteria. Biotechnol Lett 2020; 42:797-806. [PMID: 31970555 DOI: 10.1007/s10529-020-02810-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Accepted: 01/13/2020] [Indexed: 12/18/2022]
Abstract
OBJECTIVE To determine bacteriocin producers and the prevalence of structural enterocin genes and to detect the spectrum of activity against foodborne pathogens, from isolates of Enterococcus faecium and Enterococcus faecalis that were isolated from food and the environment. RESULTS The entA, entB, entP, ent1071 and entX genes, which encode enterocins were the most frequently observed. Enterocins were thermostable, proteinaceous, and resistant to catalase. None of the isolates produced hemolysin, and inhibition resulting from bacteriophage lysis was excluded. The bactericidal effect of enterocins against L. innocua 12612 was determined by optical density and colony forming units. For the activity spectrum, elimination of mainly Listeria strains, Bacillus sp. and clinical enterococci, was observed. Imaging with scanning electron microscopy after treatment with enterocin Efm22 showed irregular rod-shaped cells and loss of cellular integrity. CONCLUSIONS The isolates evaluated in this study are candidates for the production of enterocins that will be used as food biopreservatives, because they have high anti-listerial activity even after 24 h of experimentation, and used in the pharmaceutical area because they inhibit clinical microorganisms.
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Affiliation(s)
- Luciana Furlaneto-Maia
- Department of Food Technology, Federal Technological University of Paraná, Campus Londrina, Paraná, 86036-370, Brazil.
| | - Regiane Ramalho
- Department of Food Technology, Federal Technological University of Paraná, Campus Londrina, Paraná, 86036-370, Brazil
| | - Kátia Real Rocha
- Department of Microbiology, State University of Londrina, Londrina, Paraná, C.P. 6001, 86051990, Brazil
| | - Márcia Cristina Furlaneto
- Department of Microbiology, State University of Londrina, Londrina, Paraná, C.P. 6001, 86051990, Brazil
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