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Todorov SD, Wachsman M, Tomé E, Vaz-Velho M, Ivanova IV. Plasmid-Associated Bacteriocin Produced by Pediococcus pentosaceus Isolated from Smoked Salmon: Partial Characterization and Some Aspects of his Mode of Action. Probiotics Antimicrob Proteins 2024; 16:394-412. [PMID: 36928486 DOI: 10.1007/s12602-023-10059-5] [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] [Accepted: 03/03/2023] [Indexed: 03/18/2023]
Abstract
Strain ST3Ha, isolated from commercially available smoked salmon, was identified as Pediococcus pentosaceus based on biochemical and physiological tests and 16S rRNA sequencing. Strain ST3Ha produces a class IIa bacteriocin active against lactic acid bacteria, Listeria monocytogenes and Enterococcus faecalis. The antimicrobial peptide was inactivated by proteolytic enzymes, confirming his proteinaceous nature, but was not affected when treated with α-amylase, SDS, Tween 20, Tween 80, urea, and EDTA. No change in activity was recorded after 2 h at pH values between 2.0 and 9.0 and after treatment at 100 °C for 120 min or 121 °C for 15 min. The mode of action against Listeria ivanovii subsp. ivanovii ATCC 19119 and E. faecalis ATCC 19443 was bactericidal, resulting in cell lyses and enzyme leakage. The highest level of activity (1.6 × 106 AU/mL) was recorded when cells were grown at 37 °C or 30 °C in MRS broth (pH 6.5). Antimicrobial peptide ST3Ha adsorbs at high levels to the sensitive test organisms on strain-specific manner and depending on incubation temperature, environmental pH, and presence of supplemented chemicals. Based on PCR analysis, P. pentosaceus ST3Ha harbor a 1044-bp plasmid-associated fragment corresponding in size to that recorded for pediocin PA-1. Sequencing of the fragment revealed a gene identical to pedB, reported for pediocin PA-1. The combined application of the low levels (below MIC) of ciprofloxacin and bacteriocin ST3Ha results in the synergetic effect in the inhibition of L. ivanovii subsp. ivanovii ATCC 19119. Expressed by P. pentosaceus ST3Ha, bacteriocin was characterized as low cytotoxic, a characteristic relevant for its application in food industry and/or in human and veterinary medical practices.
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Affiliation(s)
- Svetoslav Dimitrov Todorov
- ProBacLab, Advanced Convergence, Handong Global University, Pohang, Gyeongbuk, 37554, Republic of Korea.
- ProBacLab, Laboratório de Microbiologia de Alimentos, Faculdade de Ciências Farmacêuticas, Departamento de Alimentos e Nutrição Experimental, Universidade de São Paulo, SP, São Paulo, Brazil.
- CISAS-Center for Research and Development in Agrifood Systems and Sustainability, Escola Superior de Tecnologia E Gestão, Instituto Politécnico de Viana Do Castelo, Viana Do Castelo, Portugal.
- Faculty of Biology, Department of General and Applied Microbiology, Sofia University St. Kliment Ohridski, 8 Dragan Tzankov Blvd, 1164, Sofia, Bulgaria.
| | - Monica Wachsman
- Laboratorio de Virología, Facultad de Ciencias Exactas Y Naturales, Departamento de Química Biológica, Universidad de Buenos Aires, Ciudad Universitaria, Pabellon 2, Piso 4, C1428EGA, Buenos Aires, Argentina
| | - Elisabetta Tomé
- Tecnologia de Alimentos, Universidad Metropolitana, Caracas, Venezuela
| | - Manuela Vaz-Velho
- CISAS-Center for Research and Development in Agrifood Systems and Sustainability, Escola Superior de Tecnologia E Gestão, Instituto Politécnico de Viana Do Castelo, Viana Do Castelo, Portugal
| | - Iskra Vitanova Ivanova
- Faculty of Biology, Department of General and Applied Microbiology, Sofia University St. Kliment Ohridski, 8 Dragan Tzankov Blvd, 1164, Sofia, Bulgaria
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Toquet M, Bataller E, Toledo-Perona R, Gomis J, Contreras A, Sánchez A, Jiménez-Trigos E, Gómez-Martín Á. In Vitro Interaction between Mycoplasma agalactiae and Small Ruminants' Endogenous Bacterial Strains of Enterococcus spp. and Coagulase-Negative Staphylococcus. Microorganisms 2024; 12:406. [PMID: 38399811 PMCID: PMC10891560 DOI: 10.3390/microorganisms12020406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 02/12/2024] [Accepted: 02/14/2024] [Indexed: 02/25/2024] Open
Abstract
Recently, an antimicrobial effect on Mycoplasma agalactiae (Ma), the main etiological agent of contagious agalactia (CA), was reported in vitro with strains of Enterococcus spp. from ovine and caprine milk. The aim of this work was to evaluate the interaction of Ma with the same Enterococcus spp. isolated from other anatomical locations (vagina) and other bacterial populations present in milk, such as coagulase-negative staphylococci (CNS). The vaginal Enterococcus strains and the raw milk CNS were isolated from sheep and goats. Experimental in vitro conditions were prepared to assess the growth of Ma with and without the presence of these strains. The selected vaginal strains were identified as Enterococcus (E.) hirae and E. mundtii, and the strains of CNS were identified as Staphylococcus petrasii. Different interactions of Ma with ovine and caprine wild vaginal strains of Enterococcus and dairy strains of CNS are described for the first time: Ma can grow exponentially during 15 h with the selected strains, although with certain strains, its optimal growth can be negatively affected (p < 0.05). The colonization and/or excretion of Ma could, therefore, be influenced by certain endogenous bacterial strains. Our results increase the knowledge about possible bacterial ecology dynamics surrounding CA.
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Affiliation(s)
- Marion Toquet
- Microbiological Agents Associated with Animal Reproduction (ProVaginBIO) Research Group, Departamento Producción y Sanidad Animal, Salud Pública Veterinaria y Ciencia y Tecnología de los Alimentos, Facultad de Veterinaria, Universidad Cardenal Herrera-CEU, CEU Universities, Carrer Tirant lo Blanc, 7, 46115 Valencia, Spain
| | - Esther Bataller
- Microbiological Agents Associated with Animal Reproduction (ProVaginBIO) Research Group, Departamento Producción y Sanidad Animal, Salud Pública Veterinaria y Ciencia y Tecnología de los Alimentos, Facultad de Veterinaria, Universidad Cardenal Herrera-CEU, CEU Universities, Carrer Tirant lo Blanc, 7, 46115 Valencia, Spain
| | - Raquel Toledo-Perona
- Microbiological Agents Associated with Animal Reproduction (ProVaginBIO) Research Group, Departamento Producción y Sanidad Animal, Salud Pública Veterinaria y Ciencia y Tecnología de los Alimentos, Facultad de Veterinaria, Universidad Cardenal Herrera-CEU, CEU Universities, Carrer Tirant lo Blanc, 7, 46115 Valencia, Spain
| | - Jesús Gomis
- Microbiological Agents Associated with Animal Reproduction (ProVaginBIO) Research Group, Departamento Producción y Sanidad Animal, Salud Pública Veterinaria y Ciencia y Tecnología de los Alimentos, Facultad de Veterinaria, Universidad Cardenal Herrera-CEU, CEU Universities, Carrer Tirant lo Blanc, 7, 46115 Valencia, Spain
| | - Antonio Contreras
- Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad de Murcia, Campus de Espinardo, 30100 Murcia, Spain
| | - Antonio Sánchez
- Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad de Murcia, Campus de Espinardo, 30100 Murcia, Spain
| | - Estrella Jiménez-Trigos
- Microbiological Agents Associated with Animal Reproduction (ProVaginBIO) Research Group, Departamento Producción y Sanidad Animal, Salud Pública Veterinaria y Ciencia y Tecnología de los Alimentos, Facultad de Veterinaria, Universidad Cardenal Herrera-CEU, CEU Universities, Carrer Tirant lo Blanc, 7, 46115 Valencia, Spain
| | - Ángel Gómez-Martín
- Microbiological Agents Associated with Animal Reproduction (ProVaginBIO) Research Group, Departamento Producción y Sanidad Animal, Salud Pública Veterinaria y Ciencia y Tecnología de los Alimentos, Facultad de Veterinaria, Universidad Cardenal Herrera-CEU, CEU Universities, Carrer Tirant lo Blanc, 7, 46115 Valencia, Spain
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Ye J, Fugaban JII, Dioso CM, Vazquez Bucheli JE, Choi GH, Kim B, Holzapfel WH, Todorov SD. Bacillus Strains Isolated from Korean Fermented Food Products with Antimicrobial Activity Against Staphylococci, an Alternative for Control of Antibiotic-Resistant Pathogens. Foodborne Pathog Dis 2023; 20:279-293. [PMID: 37366658 DOI: 10.1089/fpd.2023.0019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/28/2023] Open
Abstract
Multidrug resistance in foodborne and clinical pathogens is a worldwide health problem. The urgent need for new alternatives to the existing antibiotics is emerging. Bacteriocin-like inhibitory substances can be considered part of the new generation of antimicrobials, which can be potentially applied in the food industry and health care practices. This study aimed to select Bacillus strains with antimicrobial activity against Staphylococcus spp. with future application in the formulation of pharmaceutical antimicrobial preparations. Putative antimicrobial agent-producing strains, previously isolated and preidentified as Bacillus spp. were profiled by repetitive element sequence-based polymerase chain reaction (rep-PCR) and 16s rRNA sequencing identified the strains as Bacillus tequilensis ST1962CD with 99.47% identity confidence and as Bacillus subtilis subsp. stercoris ST2056CD with 98.45% identity confidence. Both the selected Bacillus strains were evaluated via biomolecular and physiological approaches related to their safety and virulence, beneficial properties, enzyme production profile, and presence of corresponding genes for the production of antimicrobials and virulence. Both strains were confirmed to harbor srfa and sbo genes and be free of hemolysin binding component (B) and two lytic components (L1 and L2) [BL] and nonhemolytic enterotoxin-associated genes. Produced antimicrobial agents by strains ST1962CD and ST2056CD were partially purified through the combination of ammonium sulfate precipitation and hydrophobic-based chromatography on SepPakC18 and evaluated regarding their cytotoxicity. The dynamics of bacterial growth, pH change, accumulation of produced antimicrobials, and the mode of action were evaluated. Obtained results were pointing to the potential application of safe B. tequilensis ST1962CD and B. subtilis subsp. stercoris ST2056CD strains as functional beneficial microbial cultures that are putative producers of surfactin and/or subtilosin, as potent antimicrobials, for the treatment of some staphylococcal-associated infections. Expressed antimicrobials were shown to be not cytotoxic, and appropriate biotechnological approaches need to be developed for cost-effective production, isolation, and purification of expressed antimicrobials by studied strains.
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Affiliation(s)
- Jeemin Ye
- ProBacLab, Advanced Convergence, Handong Global University, Pohang, Republic of Korea
| | - Joanna Ivy Irorita Fugaban
- ProBacLab, Advanced Convergence, Handong Global University, Pohang, Republic of Korea
- National Food Institute, Technical University of Denmark, Kongens Lyngby, Denmark
| | - Clarizza May Dioso
- Institute of Biological Sciences, University of the Philippines Los Baños, Laguna, Philippines
| | | | - Gee-Hyeun Choi
- ProBacLab, Advanced Convergence, Handong Global University, Pohang, Republic of Korea
| | - Bobae Kim
- HEM Pharma, Pohang, Republic of Korea
| | | | - Svetoslav Dimitrov Todorov
- ProBacLab, Advanced Convergence, Handong Global University, Pohang, Republic of Korea
- ProBacLab, Laboratório de Microbiologia de Alimentos, Departamento de Alimentos e Nutrição Experimental, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, São Paulo, São Paulo, Brazil
- Food Research Center (FoRC), Departamento de Alimentos e Nutrição Experimental, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, São Paulo, São Paulo, Brazil
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Toquet M, Bataller E, Gomis J, Sánchez A, Toledo-Perona R, De la Fe C, Corrales JC, Gómez-Martín Á. Antibacterial potential of commercial and wild lactic acid bacteria strains isolated from ovine and caprine raw milk against Mycoplasma agalactiae. Front Vet Sci 2023; 10:1197701. [PMID: 37426075 PMCID: PMC10324661 DOI: 10.3389/fvets.2023.1197701] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 06/06/2023] [Indexed: 07/11/2023] Open
Abstract
Introduction The complexity of fighting contagious agalactia (CA) has raised the necessity of alternative antimicrobial therapies, such as probiotics. Lactic acid bacteria (LAB) are present in the mammary gland of small ruminants and their antimicrobial effect have been previously described against species like Mycoplasma bovis but never against Mycoplasma agalactiae (Ma). This in vitro study aims to evaluate the antimicrobial activity against Ma of ovine and caprine LAB strains and a human commercial probiotic (L2) of Lactobacillus spp. Methods A total of 63 possible LAB strains were isolated from nine ovine and caprine farms in Spain, three isolates (33B, 248D, and 120B) from the 63 strains were selected, based on their capacity to grow in a specific medium in vitro, for an in vitro experiment to assess their antimicrobial activity against Ma in Ultra High Temperature (UHT) processed goat milk (GM). A women commercial vaginal probiotic was also included in the study. The inoculum of L2 was prepared at a concentration of 3.24 × 108 CFU/mL and the average concentration of the inoculum of the wild LAB varied from 7.9 × 107 to 8.4 × 108 CFU/mL. Results The commercial probiotic L2 significantly reduced the concentration of Ma to 0.000 log CFU/mL (p < 0.001), strain 33B reduced it from 7.185 to 1.279 log CFU/mL (p < 0.001), and 120B from 6.825 to 6.466 log CFU/mL (p < 0.05). Strain 248D presented a bacteriostatic effect in GM. Moreover, the three wild strains and the commercial probiotic produced a significative reduction of the pH (p < 0.001). Discussion This is the first in vivo report of the antimicrobial potential of LAB strains against Ma and its interaction. Our results support possible future alternative strategies to antibiotic therapy, previously not contemplated, to fight CA in small ruminants. Further studies are necessary to elucidate the action mechanisms through which these LAB are able to inhibit Ma and to assess the safety of using these strains in possible in vivo studies.
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Affiliation(s)
- Marion Toquet
- Microbiological Agents Associated With Animal Reproduction (ProVaginBIO) Research Group, Departamento Producción y Sanidad Animal, Salud Pública Veterinaria y Ciencia y Tecnología de los Alimentos, Facultad de Veterinaria, Universidad Cardenal Herrera-CEU, CEU Universities, Valencia, Spain
| | - Esther Bataller
- Microbiological Agents Associated With Animal Reproduction (ProVaginBIO) Research Group, Departamento Producción y Sanidad Animal, Salud Pública Veterinaria y Ciencia y Tecnología de los Alimentos, Facultad de Veterinaria, Universidad Cardenal Herrera-CEU, CEU Universities, Valencia, Spain
| | - Jesús Gomis
- Microbiological Agents Associated With Animal Reproduction (ProVaginBIO) Research Group, Departamento Producción y Sanidad Animal, Salud Pública Veterinaria y Ciencia y Tecnología de los Alimentos, Facultad de Veterinaria, Universidad Cardenal Herrera-CEU, CEU Universities, Valencia, Spain
| | - Antonio Sánchez
- Ruminant Health Research Group, Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad de Murcia, Murcia, Spain
| | - Raquel Toledo-Perona
- Microbiological Agents Associated With Animal Reproduction (ProVaginBIO) Research Group, Departamento Producción y Sanidad Animal, Salud Pública Veterinaria y Ciencia y Tecnología de los Alimentos, Facultad de Veterinaria, Universidad Cardenal Herrera-CEU, CEU Universities, Valencia, Spain
| | - Christian De la Fe
- Ruminant Health Research Group, Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad de Murcia, Murcia, Spain
| | - Juan Carlos Corrales
- Ruminant Health Research Group, Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad de Murcia, Murcia, Spain
| | - Ángel Gómez-Martín
- Microbiological Agents Associated With Animal Reproduction (ProVaginBIO) Research Group, Departamento Producción y Sanidad Animal, Salud Pública Veterinaria y Ciencia y Tecnología de los Alimentos, Facultad de Veterinaria, Universidad Cardenal Herrera-CEU, CEU Universities, Valencia, Spain
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Li M, Xiao H, Su Y, Cheng D, Jia Y, Li Y, Yin Q, Gao J, Tang Y, Bai Q. Synergistic Inhibitory Effect of Honey and Lactobacillus plantarum on Pathogenic Bacteria and Their Promotion of Healing in Infected Wounds. Pathogens 2023; 12:pathogens12030501. [PMID: 36986423 PMCID: PMC10053434 DOI: 10.3390/pathogens12030501] [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: 02/21/2023] [Revised: 03/14/2023] [Accepted: 03/14/2023] [Indexed: 03/30/2023] Open
Abstract
Prevention and control of infections have become a formidable challenge due to the increasing resistance of pathogens to antibiotics. Probiotics have been discovered to have positive effects on the host, and it is well-known that some Lactobacilli are effective in treating and preventing inflammatory and infectious diseases. In this study, we developed an antibacterial formulation consisting of honey and Lactobacillus plantarum (honey-L. plantarum). The optimal formulation of honey (10%) and L. plantarum (1 × 109 CFU/mL) was used to investigate its antimicrobial effect and mechanism in vitro, and its healing effect on wound healing of whole skin infections in rats. Biofilm crystalline violet staining and fluorescent staining results indicated that the honey-L. plantarum formulation prevented the biofilm formation in Staphylococcus aureus and Pseudomonas aeruginosa and increased the number of dead bacteria in the biofilms. Further mechanism studies revealed that the honey-L. plantarum formulation may inhibit biofilm formation by upregulating biofilm-related genes (icaA, icaR, sigB, sarA, and agrA) and downregulating quorum sensing (QS) associated genes (lasI, lasR, rhlI, rhlR, and pqsR). Furthermore, the honey-L. plantarum formulation decreased the number of bacteria in the infected wounds of rats and accelerated the formation of new connective tissue to promote wound healing. Our study suggests that the honey-L. plantarum formulation provides a promising option for the treatment of pathogenic infections and wound healing.
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Affiliation(s)
- Mei Li
- Department of Health Laboratory Technology, School of Public Health, Chongqing Medical University, Chongqing 401334, China
| | - Hong Xiao
- Department of Health Laboratory Technology, School of Public Health, Chongqing Medical University, Chongqing 401334, China
| | - Yongmei Su
- Chongqing College of Traditional Chinese Medicine, Chongqing 402760, China
| | - Danlin Cheng
- The First Clinical School, Chongqing Medical University, Chongqing 400016, China
| | - Yan Jia
- Department of Health Laboratory Technology, School of Public Health, Chongqing Medical University, Chongqing 401334, China
| | - Yingli Li
- Department of Health Laboratory Technology, School of Public Health, Chongqing Medical University, Chongqing 401334, China
| | - Qi Yin
- Department of Health Laboratory Technology, School of Public Health, Chongqing Medical University, Chongqing 401334, China
| | - Jieying Gao
- Department of Health Laboratory Technology, School of Public Health, Chongqing Medical University, Chongqing 401334, China
| | - Yong Tang
- Chongqing Orthopedics Hospital of Traditional Chinese Medicine, Chongqing 400039, China
| | - Qunhua Bai
- Department of Health Laboratory Technology, School of Public Health, Chongqing Medical University, Chongqing 401334, China
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Favaro L, Campanaro S, Fugaban JII, Treu L, Jung ES, d'Ovidio L, de Oliveira DP, Liong MT, Ivanova IV, Todorov SD. Genomic, metabolomic, and functional characterisation of beneficial properties of Pediococcus pentosaceus ST58, isolated from human oral cavity. Benef Microbes 2023; 14:57-72. [PMID: 36815495 DOI: 10.3920/bm2022.0067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
Bacteriocins produced by lactic acid bacteria are proteinaceous antibacterial metabolites that normally exhibit bactericidal or bacteriostatic activity against genetically closely related bacteria. In this work, the bacteriocinogenic potential of Pediococcus pentosaceus strain ST58, isolated from oral cavity of a healthy volunteer was evaluated. To better understand the biological role of this strain, its technological and safety traits were deeply investigated through a combined approach considering physiological, metabolomic and genomic properties. Three out of 14 colonies generating inhibition zones were confirmed to be bacteriocin producers and, according to repPCR and RAPD-PCR, differentiation assays, and 16S rRNA sequencing it was confirmed to be replicates of the same strain, identified as P. pentosaceus, named ST58. Based on multiple isolation of the same strain (P. pentosaceus ST58) over the 26 weeks in screening process for the potential bacteriocinogenic strains from the oral cavity of the same volunteer, strain ST58 can be considered a persistent component of oral cavity microbiota. Genomic analysis of P. pentosaceus ST58 revealed the presence of operons encoding for bacteriocins pediocin PA-1 and penocin A. The produced bacteriocin(s) inhibited the growth of Listeria monocytogenes, Enterococcus spp. and some Lactobacillus spp. used to determine the activity spectrum. The highest levels of production (6400 AU/ml) were recorded against L. monocytogenes strains after 24 h of incubation and the antimicrobial activity was inhibited after treatment of the cell-free supernatants with proteolytic enzymes. Noteworthy, P. pentosaceus ST58 also presented antifungal activity and key metabolites potentially involved in these properties were identified. Overall, this strain can be of great biotechnological interest towards the development of effective bio-preservation cultures as well as potential health promoting microbes.
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Affiliation(s)
- L Favaro
- Department of Agronomy Food Natural Resources Animals and Environment (DAFNAE), Università degli Studi di Padova, Agripolis, Viale dell'Università 16, 35020 Legnaro, Italy
| | - S Campanaro
- Department of Biology, Università degli Studi di Padova, Via U. Bassi 58/b, 35121 Padova, Italy.,CRIBI Biotechnology Center, Università degli Studi di Padova, 35121 Padova, Italy
| | - J I I Fugaban
- ProBacLab, Department of Advanced Convergence, Handong Global University, Pohang, Gyeongbuk 791-708, South Korea.,National Food Institute, Technical University of Denmark, Building 202, Rm. 3.234, Kemitorvet, 2800 Kongens, Lyngby, Denmark
| | - L Treu
- Department of Biology, Università degli Studi di Padova, Via U. Bassi 58/b, 35121 Padova, Italy
| | - E S Jung
- HEM Pharma Inc., Suwon, Gyeonggi 16229, Republic of Korea
| | - L d'Ovidio
- Laboratório de Microbiologia de Alimentos, Departamento de Alimentos e Nutrição Experimental, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, São Paulo (SP), Brazil
| | - D P de Oliveira
- Laboratório de Microbiologia de Alimentos, Departamento de Alimentos e Nutrição Experimental, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, São Paulo (SP), Brazil
| | - M-T Liong
- School of Industrial Technology, University Sains Malaysia, 11800 Penang, Malaysia
| | - I V Ivanova
- Department of General and Applied Microbiology, Faculty of Biology, Sofia University St. Kliment Ohridski, 8 Dragan Tzankov Blvd., 1164 Sofia, Bulgaria
| | - S D Todorov
- ProBacLab, Department of Advanced Convergence, Handong Global University, Pohang, Gyeongbuk 791-708, South Korea.,Laboratório de Microbiologia de Alimentos, Departamento de Alimentos e Nutrição Experimental, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, São Paulo (SP), Brazil
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In Vitro Probiotic Characterization and Safety Assessment of Lactic Acid Bacteria Isolated from Raw Milk of Japanese-Saanen Goat ( Capra hircus). Animals (Basel) 2022; 13:ani13010007. [PMID: 36611617 PMCID: PMC9817676 DOI: 10.3390/ani13010007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 12/15/2022] [Accepted: 12/17/2022] [Indexed: 12/24/2022] Open
Abstract
Two novel probiotic strains of lactic acid bacteria were successfully isolated from the raw milk of dairy Japanese-Saanen goats. Selection criteria for positive candidates were grown on de Man-Rogosa-Sharpe or M17 selective medium at 30, 35, or 42 °C anaerobically, and characterized based on Gram reaction, catalase test, and tolerance to low pH and bile salts. Among the 101 isolated positive candidates, two strains, YM2-1 and YM2-3, were selected and identified as Lacticaseibacillus rhamnosus using 16S rDNA sequence similarity. Culture supernatants of the two strains exhibited antipathogenic activity against Salmonella enterica subsp. enterica serovar. Typhimurium, Shigella sonnei, methicillin-resistant Staphylococcus aureus, methicillin-sensitive Staphylococcus aureus, Listeria monocytogenes, and Escherichia coli O157. The antipathogenic activities were retained to some extent after neutralization, indicating the presence of antipathogenic substances other than organic acids in the culture supernatants. The two strains were sensitive with coincidental minimum inhibition concentrations (indicated in the parentheses hereafter) to ampicillin (0.25 μg/mL), chloramphenicol (4 μg/mL), gentamycin (4 μg/mL), kanamycin (64 μg/mL), streptomycin (16 μg/mL), and tetracycline (4 μg/mL). Furthermore, the two strains were resistant to clindamycin (16 μg/mL) and erythromycin (4 μg/mL). In addition, both YM2-1 and YM2-3 strains showed less unfavorable activities, including bile acid bioconversion, carcinogenic-related enzymes, mucin degradation, plasminogen activation, and hemolysis, than the detection limits of in vitro evaluation methods used in this study. In summary, L. rhamnosus YM2-1 and YM2-3 are highly safe and promising probiotic strains applicable in the dairy industry, and were first isolated from the raw milk of Japanese-Saanen goats.
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8
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Darbandi A, Asadi A, Mahdizade Ari M, Ohadi E, Talebi M, Halaj Zadeh M, Darb Emamie A, Ghanavati R, Kakanj M. Bacteriocins: Properties and potential use as antimicrobials. J Clin Lab Anal 2021; 36:e24093. [PMID: 34851542 PMCID: PMC8761470 DOI: 10.1002/jcla.24093] [Citation(s) in RCA: 66] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 10/03/2021] [Accepted: 10/24/2021] [Indexed: 12/12/2022] Open
Abstract
A variety of bacteriocins originate from lactic acid bacteria, which have recently been modified by scientists. Many strains of lactic acid bacteria related to food groups could produce bacteriocins or antibacterial proteins highly effective against foodborne pathogens such as Staphylococcus aureus, Pseudomonas fluorescens, P. aeruginosa, Salmonella typhi, Shigella flexneri, Listeria monocytogenes, Escherichia coli O157:H7, and Clostridium botulinum. A wide range of bacteria belonging primarily to the genera Bifidobacterium and Lactobacillus have been characterized with different health‐promoting attributes. Extensive studies and in‐depth understanding of these antimicrobials mechanisms of action could enable scientists to determine their production in specific probiotic lactic acid bacteria, as they are potentially crucial for the final preservation of functional foods or for medicinal applications. In this review study, the structure, classification, mode of operation, safety, and antibacterial properties of bacteriocins as well as their effect on foodborne pathogens and antibiotic‐resistant bacteria were extensively studied.
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Affiliation(s)
- Atieh Darbandi
- Department of Microbiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.,Microbial Biotechnology Research Centre, Iran University of Medical Sciences, Tehran, Iran
| | - Arezoo Asadi
- Department of Microbiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.,Microbial Biotechnology Research Centre, Iran University of Medical Sciences, Tehran, Iran
| | - Marzieh Mahdizade Ari
- Department of Microbiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.,Microbial Biotechnology Research Centre, Iran University of Medical Sciences, Tehran, Iran
| | - Elnaz Ohadi
- Department of Microbiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.,Microbial Biotechnology Research Centre, Iran University of Medical Sciences, Tehran, Iran
| | - Malihe Talebi
- Department of Microbiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.,Microbial Biotechnology Research Centre, Iran University of Medical Sciences, Tehran, Iran
| | - Masoume Halaj Zadeh
- Department of Microbiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.,Microbial Biotechnology Research Centre, Iran University of Medical Sciences, Tehran, Iran
| | - Amir Darb Emamie
- Department of Pathobiology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Maryam Kakanj
- Food and Drug Laboratory Research Center, Food and Drug Administration, MOH&ME, Tehran, Iran
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Sharma V, Aseri GK, Bhagwat PK, Jain N, Ranveer RC. Purification and characterization of a novel bacteriocin produced by
Acinetobacter movanagherensis
AS isolated from goat rectum. FOOD FRONTIERS 2021. [DOI: 10.1002/fft2.116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Affiliation(s)
- Vishakha Sharma
- Amity Institute of Microbial Technology Amity University Rajasthan Jaipur Rajasthan India
| | - Gajender Kumar Aseri
- Amity Institute of Microbial Technology Amity University Rajasthan Jaipur Rajasthan India
| | - Prashant K. Bhagwat
- Microbiology Department DBF Dayanand College of Arts and Science Solapur Maharashtra India
| | - Neelam Jain
- Amity Institute of Biotechnology Amity University Rajasthan Jaipur Rajasthan India
| | - Rahul C. Ranveer
- Department of Post Harvest Management of Meat, Poultry and Fish PG Institute of Post Harvest Management (Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth) Roha Raigad Maharashtra India
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Characterization of Partially Purified Bacteriocins Produced by Enterococcus faecium Strains Isolated from Soybean Paste Active Against Listeria spp. and Vancomycin-Resistant Enterococci. Microorganisms 2021; 9:microorganisms9051085. [PMID: 34070112 PMCID: PMC8158364 DOI: 10.3390/microorganisms9051085] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 05/15/2021] [Accepted: 05/17/2021] [Indexed: 12/24/2022] Open
Abstract
Three out of one hundred eighty putative LAB isolates from Korean traditional fermented soybean paste were identified to be unique and bacteriocinogenic strains. Based on phenotypic and 16S rRNA sequencing analysis, selected strains were identified as Enterococcus faecium ST651ea, E. faecium ST7119ea and E. faecium ST7319ea. The bacteriocinogenic properties of the studied strains were evaluated against Listeria monocytogenes ATCC15313, Listeria innocua ATCC33090 and vancomycin-resistant E. faecium VRE19 of clinical origin. The strains E. faecium ST651ea, ST7119ea and ST7319ea expressed bacteriocins with an activity of 12,800 AU/mL, 25,600 AU/mL and 25,600 AU/mL, respectively, recorded against L. monocytogenes ATCC15131. According to the PCR-based screening of bacteriocin-related genes, which was further confirmed through amplicon sequencing, showed that strain E. faecium ST651ea carries entB and entP genes, whereas both E. faecium ST7119ea and ST7319ea strains harbor entA and entB genes. The molecular size of expressed bacteriocins was estimated by tricine-SDS-PAGE showing an approximative protein size of 4.5 kDa. The assessment of the spectrum of activity of bacteriocins ST651ea, ST7119ea and ST7319ea showed strong activity against most of clinical VRE isolates, majority of other Enterococcus spp. and Listeria spp. Bacteriocins ST651ea, ST7119ea and ST7319ea were partially purified by combination of 60% ammonium sulfate precipitation and hydrophobic chromatography on the SepPakC18 column. Challenge test with semi-purified (60% 2-propanol fraction) bacteriocins resulted in a significant reduction of viable cells for all test organisms. Thus, indicating that all the bacteriocins evaluated can be used as potential biocontrol in food and feed industries as well as an alternative treatment for VRE-related infections in both veterinary and clinical settings.
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Mining, heterologous expression, purification and characterization of 14 novel bacteriocins from Lactobacillus rhamnosus LS-8. Int J Biol Macromol 2020; 164:2162-2176. [DOI: 10.1016/j.ijbiomac.2020.08.067] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 08/06/2020] [Accepted: 08/07/2020] [Indexed: 02/07/2023]
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12
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Sharma G, Dang S, K A, Kalia M, Gabrani R. Synergistic antibacterial and anti-biofilm activity of nisin like bacteriocin with curcumin and cinnamaldehyde against ESBL and MBL producing clinical strains. BIOFOULING 2020; 36:710-724. [PMID: 32772715 DOI: 10.1080/08927014.2020.1804553] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 07/27/2020] [Accepted: 07/28/2020] [Indexed: 06/11/2023]
Abstract
Bacteriocins are small peptides that can inhibit the growth of a diverse range of microbes. There is a need to identify bacteriocins that are effective against biofilms of resistant clinical strains. The present study focussed on the efficacy of purified nisin like bacteriocin-GAM217 against extended spectrum β-lactamase (ESBL) and metallo-beta-lactamase (MBL) producing clinical strains. Bacteriocin-GAM217 when combined with curcumin and cinnamaldehyde, synergistically enhanced antibacterial activity against planktonic and biofilm cultures of Staphylococcus epidermidis and Escherichia coli. Bacteriocin-GAM217 and phytochemical combinations inhibited biofilm formation by >80%, and disrupted the biofilm for selected ESBL and MBL producing clinical strains. The anti-adhesion assay showed that these combinatorial compounds significantly lowered the attachment of bacteria to Vero cells and that they elicited membrane permeability and rapid killing as viewed by confocal microscopy. This study demonstrates that bacteriocin-GAM217 in combination with phytochemicals can be a potential anti-biofilm agent and thus has potential for biomedical applications.
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Affiliation(s)
- Garima Sharma
- Department of Biotechnology, Jaypee Institute of Information Technology, Noida, India
| | - Shweta Dang
- Department of Biotechnology, Jaypee Institute of Information Technology, Noida, India
| | - Aruna K
- Department of Microbiology, Wilson College, Mumbai, India
| | | | - Reema Gabrani
- Department of Biotechnology, Jaypee Institute of Information Technology, Noida, India
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13
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Todorov S, Cavicchioli V, Ananieva M, Bivolarski V, Vasileva T, Hinkov A, Todorov D, Shishkov S, Haertlé T, Iliev I, Nero L, Ivanova I. Expression of coagulin A with low cytotoxic activity by
Pediococcus pentosaceus
ST65ACC isolated from raw milk cheese. J Appl Microbiol 2019; 128:458-472. [DOI: 10.1111/jam.14492] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 10/10/2019] [Accepted: 10/14/2019] [Indexed: 12/17/2022]
Affiliation(s)
- S.D. Todorov
- Faculdade de Ciências Farmacêuticas Universidade de São Paulo São Paulo Brazil
- Departamento de Veterinária Universidade Federal de Viçosa Viçosa Brazil
| | - V.Q. Cavicchioli
- Departamento de Veterinária Universidade Federal de Viçosa Viçosa Brazil
- Department of Biochemistry and Microbiology Faculty of Biology Plovdiv University Paisii Hilendarski Plovdiv Bulgaria
- Department of General and Applied Microbiology Faculty of Biology Sofia University St. Kliment Ohridski Sofia Bulgaria
| | - M. Ananieva
- Department of General and Applied Microbiology Faculty of Biology Sofia University St. Kliment Ohridski Sofia Bulgaria
| | - V.P. Bivolarski
- Department of Biochemistry and Microbiology Faculty of Biology Plovdiv University Paisii Hilendarski Plovdiv Bulgaria
| | - T.A. Vasileva
- Department of Biochemistry and Microbiology Faculty of Biology Plovdiv University Paisii Hilendarski Plovdiv Bulgaria
| | - A.V. Hinkov
- Laboratory of Virology Faculty of Biology Sofia University St. Kliment Ohridski Sofia Bulgaria
| | - D.G. Todorov
- Laboratory of Virology Faculty of Biology Sofia University St. Kliment Ohridski Sofia Bulgaria
| | - S. Shishkov
- Laboratory of Virology Faculty of Biology Sofia University St. Kliment Ohridski Sofia Bulgaria
| | - T. Haertlé
- Institut National de la Recherche Agronomique UR 1268 Biopolymeres Interactions Assemblages Nantes cedex 3 France
| | - I.N. Iliev
- Department of Biochemistry and Microbiology Faculty of Biology Plovdiv University Paisii Hilendarski Plovdiv Bulgaria
| | - L.A. Nero
- Departamento de Veterinária Universidade Federal de Viçosa Viçosa Brazil
| | - I.V. Ivanova
- Department of General and Applied Microbiology Faculty of Biology Sofia University St. Kliment Ohridski Sofia Bulgaria
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