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Medeiros JC, Leandro EDS, Maldonade IR, Alencar ER, Ribeiro CSDC, Ragassi CF. Characterization of the probiotic potential of lactic acid bacteria isolated from spontaneous fermentation of jalapeno peppers (
Capsicum annuum
L.). J FOOD PROCESS PRES 2021. [DOI: 10.1111/jfpp.16025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Júlia Carvalho Medeiros
- Department of Nutrition College of Health Sciences University of Brasília, Campus Darcy Ribeiro Brasilia Brazil
| | - Eliana dos Santos Leandro
- Department of Nutrition College of Health Sciences University of Brasília, Campus Darcy Ribeiro Brasilia Brazil
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Fuochi V, Emma R, Furneri PM. Bacteriocins, A Natural Weapon Against Bacterial Contamination for Greater Safety and Preservation of Food: A Review. Curr Pharm Biotechnol 2021; 22:216-231. [PMID: 32621714 DOI: 10.2174/1389201021666200704145427] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Revised: 05/27/2020] [Accepted: 06/01/2020] [Indexed: 11/22/2022]
Abstract
Nowadays, consumers have become increasingly attentive to human health and the use of more natural products. Consequently, the demand for natural preservatives in the food industry is more frequent. This has led to intense research to discover new antimicrobial compounds of natural origin that could effectively fight foodborne pathogens. This research aims to safeguard the health of consumers and, above all, to avoid potentially harmful chemical compounds. Lactobacillus is a bacterial genus belonging to the Lactic Acid Bacteria and many strains are defined GRAS, generally recognized as safe. These strains are able to produce substances with antibacterial activity against food spoilage bacteria and contaminating pathogens: the bacteriocins. The aim of this review was to focus on this genus and its capability to produce antibacterial peptides. The review collected all the information from the last few years about bacteriocins produced by Lactobacillus strains, isolated from clinical or food samples, with remarkable antimicrobial activities useful for being exploited in the food field. In addition, the advantages and disadvantages of their use and the possible ways of improvement for industrial applications were described.
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Affiliation(s)
- Virginia Fuochi
- Universita degli Studi di Catania, Dipartimento di Scienze Biomediche e Biotecnologiche BIOMETEC, Sez. Microbiologia, Torre Biologica, via S. Sofia 97, 95123 Catania, Italy
| | - Rosalia Emma
- Universita degli Studi di Catania, Dipartimento di Scienze Biomediche e Biotecnologiche BIOMETEC, Sez. Microbiologia, Torre Biologica, via S. Sofia 97, 95123 Catania, Italy
| | - Pio M Furneri
- Universita degli Studi di Catania, Dipartimento di Scienze Biomediche e Biotecnologiche BIOMETEC, Sez. Microbiologia, Torre Biologica, via S. Sofia 97, 95123 Catania, Italy
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3
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Gandhi D, Chanalia P, Bansal P, Dhanda S. Peptidoglycan Hydrolases of Probiotic Pediococcus acidilactici NCDC 252: Isolation, Physicochemical and In Silico Characterization. Int J Pept Res Ther 2020. [DOI: 10.1007/s10989-019-10008-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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4
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Martorano-Fernandes L, Rodrigues NC, de Souza Borges MH, Cavalcanti YW, de Almeida LDFD. Interkingdom interaction between C. albicans and S. salivarius on titanium surfaces. BMC Oral Health 2020; 20:349. [PMID: 33261593 PMCID: PMC7706213 DOI: 10.1186/s12903-020-01334-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 11/17/2020] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND In oral candidiasis models, Candida albicans and Streptococcus salivarius sp. biofilms have an antagonistic relationship. Due to this, S. salivarius have been used experimentally as probiotic. However, the interaction between these microorganisms in the peri-implantitis-like microenvironment remains unknown. This study aimed to evaluate the interaction between C. albicans and S. salivarius biofilms developed on titanium surfaces, under reduced oxygen levels. METHODS Titanium specimens were pre-conditioned with artificial saliva (1 h, 37 °C). Single-species biofilms of C. albicans (ATCC 90028) and co-culture biofilms of C. albicans and S. salivarius (ATCC 7073) was developed for 24 and 72 h on titanium specimens. Subsequently, the effect of these intervals of biofilm formation and the interactions among the cells were evaluated. Biofilms from cultures were collected and analyzed for cell viability (CFU/mL), biofilm biomass, and total protein dosage. Data were analyzed using Mann-Whitney test (α = 5%). In addition, co-culture biofilms were analyzed using fluorescence microscopy. RESULTS C. albicans growth did not change due to the presence of S. salivarius. Besides, co-culture biofilms showed a significant difference in the number of viable cells between 24 and 72 h of biofilm development (p < 0.05). The highest biofilm biomass and protein dosage were observed in co-cultures at 72 h of biofilm development. Fluorescence microscopy showed that co-cultures biofilms at 24 h have limited number of pseudo-hyphal and hyphae cells of C. albicans. At 72 h, these types of cells have increased. S. salivarius in both stages of development was present in some clusters surrounded by C. albicans. CONCLUSIONS Co-cultivation of C. albicans with S. salivarius in biofilms developed on titanium surfaces, under lower oxygen levels, did not affect fungus growth. In addition, S. salivarius did not hind C. albicans virulence. These findings suggest that the use of S. salivarius as a probiotic would be ineffective in peri-implant disease treatment.
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Affiliation(s)
- Loyse Martorano-Fernandes
- Postgraduate Program in Dentistry, Federal University of Paraíba, Cidade Universitária, João Pessoa, Paraiba, Brazil
| | - Nadiny Cezar Rodrigues
- School of Dentistry, Federal University of Paraíba, Cidade Universitária, João Pessoa, Paraiba, Brazil
| | | | - Yuri Wanderley Cavalcanti
- Department of Clinic and Social Dentistry, Federal University of Paraíba, Cidade Universitária, João Pessoa, Paraiba, Brazil
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5
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Silva DR, Sardi JDCO, Pitangui NDS, Roque SM, Silva ACBD, Rosalen PL. Probiotics as an alternative antimicrobial therapy: Current reality and future directions. J Funct Foods 2020. [DOI: 10.1016/j.jff.2020.104080] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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7
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Tiwari SK, Dicks LMT, Popov IV, Karaseva A, Ermakov AM, Suvorov A, Tagg JR, Weeks R, Chikindas ML. Probiotics at War Against Viruses: What Is Missing From the Picture? Front Microbiol 2020; 11:1877. [PMID: 32973697 PMCID: PMC7468459 DOI: 10.3389/fmicb.2020.01877] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 07/16/2020] [Indexed: 01/07/2023] Open
Abstract
Our world is now facing a multitude of novel infectious diseases. Bacterial infections are treated with antibiotics, albeit with increasing difficulty as many of the more common causes of infection have now developed broad spectrum antimicrobial resistance. However, there is now an even greater challenge from both old and new viruses capable of causing respiratory, enteric, and urogenital infections. Reports of viruses resistant to frontline therapeutic drugs are steadily increasing and there is an urgent need to develop novel antiviral agents. Although this all makes sense, it seems rather strange that relatively little attention has been given to the antiviral capabilities of probiotics. Over the years, beneficial strains of lactic acid bacteria (LAB) have been successfully used to treat gastrointestinal, oral, and vaginal infections, and some can also effect a reduction in serum cholesterol levels. Some probiotics prevent gastrointestinal dysbiosis and, by doing so, reduce the risk of developing secondary infections. Other probiotics exhibit anti-tumor and immunomodulating properties, and in some studies, antiviral activities have been reported for probiotic bacteria and/or their metabolites. Unfortunately, the mechanistic basis of the observed beneficial effects of probiotics in countering viral infections is sometimes unclear. Interestingly, in COVID-19 patients, a clear decrease has been observed in cell numbers of Lactobacillus and Bifidobacterium spp., both of which are common sources of intestinal probiotics. The present review, specifically motivated by the need to implement effective new counters to SARS-CoV-2, focusses attention on viruses capable of co-infecting humans and other animals and specifically explores the potential of probiotic bacteria and their metabolites to intervene with the process of virus infection. The goal is to help to provide a more informed background for the planning of future probiotic-based antiviral research.
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Affiliation(s)
- Santosh Kumar Tiwari
- Department of Genetics, Maharshi Dayanand University, Rohtak, India,*Correspondence: Santosh Kumar Tiwari,
| | - Leon M. T. Dicks
- Department of Microbiology, Stellenbosch University, Stellenbosch, South Africa
| | - Igor V. Popov
- Center for Agro-Biotechnology, Faculty of Bioengineering and Veterinary Medicine, Don State Technical University, Rostov-on-Don, Russia
| | - Alena Karaseva
- Institute of Experimental Medicine, Saint Petersburg, Russia
| | - Alexey M. Ermakov
- Center for Agro-Biotechnology, Faculty of Bioengineering and Veterinary Medicine, Don State Technical University, Rostov-on-Don, Russia
| | - Alexander Suvorov
- Institute of Experimental Medicine, Saint Petersburg, Russia,Saint Petersburg State University, Saint Petersburg, Russia
| | | | - Richard Weeks
- Health Promoting Naturals Laboratory, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey, Brunswick, NJ, United States
| | - Michael L. Chikindas
- Center for Agro-Biotechnology, Faculty of Bioengineering and Veterinary Medicine, Don State Technical University, Rostov-on-Don, Russia,Health Promoting Naturals Laboratory, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey, Brunswick, NJ, United States
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8
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Ciolfi S, Marri L. Dominant symbiotic bacteria associated with wild medfly populations reveal a bacteriocin-like killing phenotype: a 'cold-case' study. BULLETIN OF ENTOMOLOGICAL RESEARCH 2020; 110:457-462. [PMID: 31813393 DOI: 10.1017/s0007485319000816] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The gut of the agricultural pest Ceratitis capitata hosts a varied community of bacteria, mainly Enterobacteriaceae, that were implicated in several processes that increase the fitness of the insect. In this study, we investigated the antagonistic activity in vitro of Klebsiella oxytoca strains isolated in the 1990s from the alimentary tract of wild medflies collected from different varieties of fruit trees at diverse localities. Assays were carried out against reference strains (representative of Gram-negative and -positive bacterial species) of the American Type Culture Collection (ATCC). Eight Klebsiella, out of 11, expressed a killing activity against Escherichia coli ATCC 23739, and Enterobacter cloacae ATCC 13047; among the eight strains, at least one showed activity against Salmonella typhimurium ATCC 23853. Genomic DNA derived from all Klebsiella strains was then subjected to PCR amplification using specific primer pairs designed from each of the four bacteriocin (KlebB, C, D, CCL) sequences found so far in Klebsiella. KlebD primer pairs were the only to produce a single product for all strains expressing the killing phenotype in vitro. One of the amplicons was cloned and sequenced; the DNA sequence shows 93% identity with a plasmid-carried colicin-D gene of a strain of Klebsiella michiganensis, and 86% identity with the sequence encoding for the klebicin D activity protein in K. oxytoca. Our work provides the first evidence that dominant symbiotic bacteria associated with wild medfly populations express a killing phenotype that may mediate inter and intraspecies competition among bacterial populations in the insect gut in vivo.
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Affiliation(s)
- Silvia Ciolfi
- Department of Life Sciences, via A. Moro 2, University of Siena, Siena-53100, Italy
| | - Laura Marri
- Department of Life Sciences, via A. Moro 2, University of Siena, Siena-53100, Italy
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9
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In Vitro Evaluation of Potential Probiotic Strain Lactococcus lactis Gh1 and Its Bacteriocin-Like Inhibitory Substances for Potential Use in the Food Industry. Probiotics Antimicrob Proteins 2020; 13:422-440. [PMID: 32728855 DOI: 10.1007/s12602-020-09690-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Determination of a microbial strain for the joining into sustenance items requires both in vitro and in vivo assessment. A newly isolated bacteriocin-like inhibitory substance (BLIS) producing lactic acid bacterium, Lactococcus lactis Gh1, was isolated from a traditional flavour enhancer and evaluated in vitro for its potential applications in the food industry. Results from this study showed that L. lactis was tolerant to NaCl (≤ 4.0%, w/v), phenol (≤ 0.4%, w/v), 0.3% (w/v) bile salt, and pH 3. BLIS from L. lactis showed antimicrobial activity against Listeria monocytogenes ATCC 15313 and was susceptible to 10 types of antibiotics. The absence of haemolytic activity and the presence of acid phosphatase and naphthol-AS-BI-phosphohydrolase were observed in L. lactis. L. lactis could coagulate milk and showed a negative response to amylolytic and proteolytic activities and did not secrete β-galactosidase. The antimicrobial activity of BLIS was completely abolished at 121 °C. The BLIS was conserved at 4 °C in BHI and MRS medium up to 6-4 months, respectively. BLIS activity was more stable in BHI as compared to MRS after four freeze-thaw cycles and was not affected by a wide range of pH (pH 4-8). BLIS was sensitive to proteinase k and resistant to catalase and trypsin. The antimicrobial activity was slightly reduced by acetone, ethanol, methanol, and acetonitrile at 10% (v/v) and also towards Tween-80, urea, and NaCl 1% (v/v). Results from this study have demonstrated that L. lactis has a vast potential to be applied in the food industry, such as for the preparation of starter culture, functional foods, and probiotic products.
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10
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de Souza de Azevedo PO, Mendonça CMN, Moreno ACR, Bueno AVI, de Almeida SRY, Seibert L, Converti A, Watanabe IS, Gierus M, de Souza Oliveira RP. Antibacterial and antifungal activity of crude and freeze-dried bacteriocin-like inhibitory substance produced by Pediococcus pentosaceus. Sci Rep 2020; 10:12291. [PMID: 32704020 PMCID: PMC7378238 DOI: 10.1038/s41598-020-68922-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 06/16/2020] [Indexed: 11/24/2022] Open
Abstract
Pediococcus pentosaceus LBM 18 has shown potential as producer of an antibacterial and antifungal bacteriocin-like inhibitory substance (BLIS). BLIS inhibited the growth of spoilage bacteria belonging to Lactobacillus, Enterococcus and Listeria genera with higher activity than Nisaplin used as control. It gave rise to inhibition halos with diameters from 9.70 to 20.00 mm, with Lactobacillus sakei being the most sensitive strain (13.50-20.00 mm). It also effectively suppressed the growth of fungi isolated from corn grain silage for up to 25 days and impaired morphology of colonies by likely affecting fungal membranes. These results point out that P. pentosaceus BLIS may be used as a new promising alternative to conventional antibacterial and antifungal substances, with potential applications in agriculture and food industry as a natural bio-controlling agent. Moreover, cytotoxicity and cell death induction tests demonstrated cytotoxicity and toxicity of BLIS to human colon adenocarcinoma Caco-2cells but not to peripheral blood mononuclear cells, with suggests possible applications of BLIS also in medical-pharmaceutical applications.
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Affiliation(s)
| | | | - Ana Carolina Ramos Moreno
- Department of Microbiology, Biomedical Sciences Institute, University of São Paulo, São Paulo, SP, Brazil
| | | | | | - Liane Seibert
- Department of Animal Science, Laboratory of Ecology and Natural Grassland, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Attilio Converti
- Department of Civil, Chemical and Environmental Engineering, Pole of Chemical Engineering, University of Genoa, Via Opera 15, 16145, Genoa, Italy
| | - Ii-Sei Watanabe
- Department of Anatomy, Biomedical Sciences Institute, University of São Paulo, São Paulo, Brazil
| | - Martin Gierus
- Department of Agrobiotechnology, Institute of Animal Nutrition, Livestock Products, and Nutrition Physiology (TTE), IFA-Tulln, University of Natural Resources and Life Sciences (BOKU), Vienna, Austria
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11
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Klein JM, Stockwell VO, Minsavage GV, Vallad GE, Goss EM, Jones JB. Improved deferred antagonism technique for detecting antibiosis. Lett Appl Microbiol 2020; 71:330-336. [PMID: 32506499 DOI: 10.1111/lam.13339] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 05/12/2020] [Accepted: 05/28/2020] [Indexed: 11/29/2022]
Abstract
The deferred antagonism technique has been utilized for several decades for detecting antibiosis activity. Most protocols require the elimination of antibiotic-producing cells by exposing them to chloroform vapour, UV radiation or filter sterilizing the filtrate steps that require additional time and expense to complete. We provide a modified approach to current soft agar overlay practices, which involves addition of antibiotics to the soft agar overlay to inhibit growth of the producer but not the indicator strain. This technique can be used to reproducibly and efficiently screen for antibiotic production with ease. We demonstrate the effectiveness of this technique with three bacterial systems: inhibition of the bacterial spot of tomato pathogen, Xanthomonas euvesicatoria, by its pathogenic competitor Xanthomonas perforans; and inhibition of the fire blight pathogen, Erwinia amylovora, by Pantoea vagans C9-1 or Pseudomonas fluorescens A506. SIGNIFICANCE AND IMPACT OF THE STUDY: Deferred antagonism assays are used commonly to observe antibiotic production by micro-organisms. Killing or removing the producer cells prior to introduction of the indicator strain is a standard practice but requires additional time and special handling procedures. We evaluated a modification of the assay, where the overlay medium is amended with an antibiotic to which the indicator strain is resistant and the producer strain is sensitive. This modification obviates extra steps to kill the producer strain prior to overlaying with the indicator strain and provides a rapid, consistent and cost-effective method to detect antibiosis.
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Affiliation(s)
- J M Klein
- Department of Plant Pathology, University of Florida, Gainesville, Florida, USA
| | - V O Stockwell
- United States Department of Agriculture, Agricultural Research Service, Horticultural Crops Research Unit, Corvallis, Oregon, USA
| | - G V Minsavage
- Department of Plant Pathology, University of Florida, Gainesville, Florida, USA
| | - G E Vallad
- Department of Plant Pathology, University of Florida, Gainesville, Florida, USA.,Gulf Coast Research and Education Center, University of Florida, Wimauma, Florida, USA
| | - E M Goss
- Department of Plant Pathology, University of Florida, Gainesville, Florida, USA.,Emerging Pathogens Institute, University of Florida, Gainesville, Florida, USA
| | - J B Jones
- Department of Plant Pathology, University of Florida, Gainesville, Florida, USA
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12
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Naimi S, Zirah S, Taher MB, Theolier J, Fernandez B, Rebuffat SF, Fliss I. Microcin J25 Exhibits Inhibitory Activity Against Salmonella Newport in Continuous Fermentation Model Mimicking Swine Colonic Conditions. Front Microbiol 2020; 11:988. [PMID: 32528437 PMCID: PMC7262971 DOI: 10.3389/fmicb.2020.00988] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Accepted: 04/23/2020] [Indexed: 12/30/2022] Open
Abstract
Microcin J25 (MccJ25), a 21-amino acid bacteriocin produced by Escherichia coli (E. coli), is a potent inhibitor of Enterobacteriaceae, including pathogenic E. coli, Salmonella, and Shigella. Its lasso structure makes it highly stable and therefore of interest as a possible antimicrobial agent in foods or as an alternative to antibiotics in livestock production. In the present study, we aimed to evaluate in vitro the inhibitory activity of MccJ25 against Salmonella enterica subsp. enterica serovar Newport ATCC 6962 (Salmonella Newport) used as a model pathogen under conditions simulating those of the swine proximal colon. The growth inhibition activity of MccJ25 against Salmonella Newport was examined in lysogeny broth (LB) and in modified MacFarlane medium that allows miming the swine colonic conditions. The MccJ25 activity was further determined using the Polyfermentor intestinal model (PolyFermS), an in vitro continuous fermentation model that permits deciphering the activity of any antimicrobial molecule in real colon fermentation conditions using selected microbiota. It was set up here to simulate the porcine proximal colon fermentation. In these conditions, the inhibition activity of MccJ25 was compared to those of two antimicrobial agents, reuterin and rifampicin. The minimal inhibitory concentration (MIC) of MccJ25 was determined at 0.03 μM in LB medium, compared to 1,079 and 38 μM for reuterin and rifampicin, respectively, showing a significantly higher potency of MccJ25. Total inhibition of Salmonella Newport was observed in LB medium over 24 h of incubation at concentrations starting from the MIC. In the PolyFermS model, MccJ25 induced a significantly stronger inhibition of Salmonella Newport growth than reuterin or rifampicin. A specific and sensitive LC-MS method allowed to detect and quantify MccJ25 in the PolyFermS fermentation system, showing that MccJ25 remains stable and active against Salmonella in conditions mimicking those found in swine colon. This study paves the way for further exploring the potential of this bacteriocin as an alternative to antibiotics in livestock.
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Affiliation(s)
- Sabrine Naimi
- STELA Dairy Research Center, Institute of Nutrition and Functional Foods, Université Laval, Québec, QC, Canada
| | - Séverine Zirah
- Laboratoire Molécules de Communication et Adaptation des Microorganismes (MCAM), Muséum National d'Histoire Naturelle, Centre National de la Recherche Scientifique, Paris, France
| | - Menel Ben Taher
- STELA Dairy Research Center, Institute of Nutrition and Functional Foods, Université Laval, Québec, QC, Canada
| | - Jérémie Theolier
- STELA Dairy Research Center, Institute of Nutrition and Functional Foods, Université Laval, Québec, QC, Canada
| | - Benoît Fernandez
- STELA Dairy Research Center, Institute of Nutrition and Functional Foods, Université Laval, Québec, QC, Canada
| | - Sylvie Françoise Rebuffat
- Laboratoire Molécules de Communication et Adaptation des Microorganismes (MCAM), Muséum National d'Histoire Naturelle, Centre National de la Recherche Scientifique, Paris, France
| | - Ismail Fliss
- STELA Dairy Research Center, Institute of Nutrition and Functional Foods, Université Laval, Québec, QC, Canada
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Sabo SDS, Mendes MA, Araújo EDS, Muradian LBDA, Makiyama EN, LeBlanc JG, Borelli P, Fock RA, Knöbl T, Oliveira RPDS. Bioprospecting of probiotics with antimicrobial activities against Salmonella Heidelberg and that produce B-complex vitamins as potential supplements in poultry nutrition. Sci Rep 2020; 10:7235. [PMID: 32350311 PMCID: PMC7190695 DOI: 10.1038/s41598-020-64038-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Accepted: 12/19/2019] [Indexed: 01/20/2023] Open
Abstract
The demand for animal protein for human consumption has been risen exponentially. Modern animal production practices are associated with the regular use of antibiotics, potentially increasing the emerging multi-resistant bacteria, which may have a negative impact on public health. In poultry production, substances capable of maximizing the animals’ performance and displaying an antimicrobial activity against pathogens are very well desirable features. Probiotic can be an efficient solution for such a task. In the present work, lactic acid bacteria (LAB) were isolated from chicken cecum and screened for their antagonistic effect towards many pathogens. Their capacity of producing the B-complex vitamins folate and riboflavin were also evaluated. From 314 isolates, three (C43, C175 and C195) produced Bacteriocin-Like Inhibitory Substances (BLIS) against Staphylococcus aureus (inhibition zones of 18.9, 21.5, 19.5 mm, respectively) and also inhibited the growth of Salmonella Heidelberg. The isolate C43 was identified as Enterococcus faecium, while C173 and C195 were both identified as Lactococcus lactis subsp. lactis. Moreover, the isolates L. lactis subsp. lactis strains C173 and C195 demonstrated high potential to be used as probiotic in poultry feed, in addition to their advantage of producing folate (58.0 and 595.5 ng/mL, respectively) and riboflavin (223.3 and 175.0 ng/mL, respectively).
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Affiliation(s)
- Sabrina da Silva Sabo
- Department of Biochemical and Pharmaceutical Technology, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | - Maria Anita Mendes
- Chemical Engineering Department, University of São Paulo, São Paulo, Brazil
| | - Elias da Silva Araújo
- Department of Food and Experimental Nutrition, School of Pharmaceutical Science, University of São Paulo, São Paulo, Brazil
| | | | - Edson Naoto Makiyama
- Department of Clinical and Toxicological Analysis, School of Pharmaceutical Science, University of São Paulo, São Paulo, Brazil
| | | | - Primavera Borelli
- Department of Clinical and Toxicological Analysis, School of Pharmaceutical Science, University of São Paulo, São Paulo, Brazil
| | - Ricardo Ambrósio Fock
- Department of Clinical and Toxicological Analysis, School of Pharmaceutical Science, University of São Paulo, São Paulo, Brazil
| | - Terezinha Knöbl
- Department of Pathology, School of Veterinary Medicine and Animal Science, São Paulo, Brazil, University of São Paulo, São Paulo, Brazil
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Afzali S, Edalatian Dovom MR, Habibi Najafi MB, Mazaheri Tehrani M. Determination of the anti-yeast activity of Lactobacillus spp. isolated from traditional Iranian cheeses in vitro and in yogurt drink (Doogh). Sci Rep 2020; 10:6291. [PMID: 32286376 PMCID: PMC7156417 DOI: 10.1038/s41598-020-63142-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Accepted: 03/25/2020] [Indexed: 12/20/2022] Open
Abstract
The objective of this study was to determine the anti-yeast effect of Lactobacillus spp. isolated from two popular Iranian cheeses known as Lighvan and Motal against food spoilage yeasts known as Rhodotorula mucilaginosa, Saccharomyces cerevisiae and Kluyveromyces lactis. Twenty strains of Lactobacillus were selected from Motal (16 isolates) and Lighvan cheeses (4 isolates). Anti-yeast activity was studied by Agar Spot and Well Diffusion Assay. Effect of pasteurization on inhibitory compounds was also investigated. Results showed that two strains of Lactobacillus brevis (M4 and M2) exhibited the highest anti- yeast activity in aforementioned methods, as well as tolerated pasteurization. M4 and M2 strains were inoculated into Doogh (a fermented yogurt drink) at two levels (106 and 108 cfu/ml). All samples were incubated in three storage temperatures (4, 25 and 37 °C) and were then examined for microbial parameters (Mold and yeast counts, Coliform, E. coli and Staphylococcus aureus) at specific intervals. Sample with M4 (106cfu/ml) showed superiority rather than control sample in microbial point of view. At temperatures of 25 and 37 °C, inoculated samples were not contaminated up to day- 21 and day-14, respectively. The propionic acid content for M4 and M2, was 14576.11 and 11697.3 ppm, respectively. Results indicate that incorporation of strain M4 (Lb. brevis) at a level of 106 cfu/ml can potentially postpone the yeast spoilage in Doogh and prolong the stability of this product. In conclusion, these strains had the highest activity against experimented yeasts.
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Affiliation(s)
- Saeid Afzali
- Food Science and Technology Department, Agriculture Faculty, Ferdowsi University of Mashhad (FUM), Mashhad, Iran
| | | | | | - Mostafa Mazaheri Tehrani
- Food Science and Technology Department, Agriculture Faculty, Ferdowsi University of Mashhad (FUM), Mashhad, Iran
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Nazari M, Smith DL. A PGPR-Produced Bacteriocin for Sustainable Agriculture: A Review of Thuricin 17 Characteristics and Applications. FRONTIERS IN PLANT SCIENCE 2020; 11:916. [PMID: 32733506 PMCID: PMC7358586 DOI: 10.3389/fpls.2020.00916] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 06/04/2020] [Indexed: 05/08/2023]
Abstract
A wide range of prokaryotes produce and excrete bacteriocins (proteins with antimicrobial activity) to reduce competition from closely related strains. Application of bacteriocins is of great importance in food industries, while little research has been focused on the agricultural potential of bacteriocins. A number of bacteriocin producing bacteria are members of the phytomicrobiome, and some strains are plant growth promoting rhizobacteria (PGPR). Thuricin 17 is a single small peptide with a molecular weight of 3.162 kDa, a subclass IId bacteriocin produced by Bacillus thuringiensis NEB17, isolated from soybean nodules. It is either cidal or static to a wide range of prokaryotes. In this way, it removes key competition from the niche space of the producer organism. B. thuringiensis NEB17 was isolated from soybean root nodules, and thus is a member of the phytomicrobiome. Interestingly, thuricin 17 is not active against a wide range of rhizobial strains involved in symbiotic nitrogen fixation with legumes or against other PGPR. In addition, it stimulates plant growth, particularly in the presence of abiotic stresses. The stresses it assists with include key ones associated with climate change (drought, high temperature, and soil salinity). Hence, in the presence of stress, it increases the size of the overall niche space, within plant roots, for B. thuringiensis NEB17. Through its anti-microbial activity, it could also enhance plant growth via control of specific plant pathogens. None of the isolated bacteriocins have been examined as broadly as thuricin 17 on plant growth promotion. Thus, this review focuses on the effect of thuricin 17 as a microbe to plant signal that assists crop plants in managing stress and making agricultural systems more climate change resilient.
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16
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Assessment of the bioprotective potential of lactic acid bacteria against Listeria monocytogenes on vacuum-packed cold-smoked salmon stored at 8 °C. Food Microbiol 2019; 83:64-70. [DOI: 10.1016/j.fm.2019.04.011] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 04/16/2019] [Accepted: 04/22/2019] [Indexed: 10/26/2022]
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17
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Affiliation(s)
- L.Z. Jin
- Institute of Bioscience, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia
| | - Y.W. Ho
- Institute of Bioscience, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia
| | - N. Abdullah
- Institute of Bioscience, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia
| | - S. Jalaludin
- Institute of Bioscience, Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia
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18
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Kutschera U, Briggs WR. Photomorphogenesis of the root system in developing sunflower seedlings: a role for sucrose. PLANT BIOLOGY (STUTTGART, GERMANY) 2019; 21:762-769. [PMID: 30821893 DOI: 10.1111/plb.12972] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Accepted: 02/04/2019] [Indexed: 05/21/2023]
Abstract
The domestic sunflower (Helianthus annuus L. cv. 'Giganteus') has been used since the 19th century as a model plant for the study of seedling development in darkness and white light (WL) (scoto- versus photomorphogenesis). However, most pertinent studies have focused on the developmental patterns of the hypocotyl and cotyledons, whereas the root system has been largely ignored. In this study, we analysed entire sunflower seedlings (root and shoot) and quantified organ development in the above- and belowground parts of the organism under natural (non-sterile) conditions. We document that seedlings, raised in moist vermiculite, are covered with methylobacteria, microbes that are known to promote root development in Arabidopsis. Quantitative data revealed that during photomorphogenesis in WL, the root system expands by 90%, whereas stem elongation is inhibited, and hook opening/cotyledon expansion occurs. Root morphogenesis may be mediated via imported sucrose provided by the green, photosynthetically active cotyledons. This hypothesis is supported by the documented effect of sucrose on the induction of lateral root initials in sunflower cuttings. Under these experimental conditions, phytohormones (auxin, cytokinin, brassinolide) exerted little effect on root and cotyledon expansion, and no hormone-induced initiation of lateral roots was observed. It is concluded that sucrose not only acts as an energy source to fuel cell metabolism but is also a shoot-derived signalling molecule that triggers root morphogenesis.
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Affiliation(s)
- U Kutschera
- Department of Plant Biology, Carnegie Institution for Science, Stanford, CA, USA
| | - W R Briggs
- Department of Plant Biology, Carnegie Institution for Science, Stanford, CA, USA
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19
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Isolation, Identification, and Characterization of a Novel Bacteriocin Produced by Brevibacillus laterosporus DS-3 Against Methicillin-Resistant Staphylococcus aureus (MRSA). Int J Pept Res Ther 2019. [DOI: 10.1007/s10989-019-09878-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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20
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Almeida-Pereira CS, Nogueira PCDL, Barbosa AAT, Nizio DADC, Arrigoni-Blank MDF, Sampaio TS, Alves RP, Araujo-Couto HGSD, Feitosa-Alcantara RB, Melo JOD, Blank AF. Chemical composition and antimicrobial activity of essential oils of a Croton tetradenius Baill. germplasm. JOURNAL OF ESSENTIAL OIL RESEARCH 2019. [DOI: 10.1080/10412905.2019.1607785] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
| | | | | | | | | | - Taís Santos Sampaio
- Department of Agronomic Engineering, Federal University of Sergipe, São Cristóvão, Brazil
| | - Rodrigo Pereira Alves
- Department of Agronomic Engineering, Federal University of Sergipe, São Cristóvão, Brazil
| | | | | | | | - Arie Fitzgerald Blank
- Department of Agronomic Engineering, Federal University of Sergipe, São Cristóvão, Brazil
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21
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Valente GLC, Acurcio LB, Freitas LPV, Nicoli JR, Silva AM, Souza MR, Penna CFAM. Short communication: In vitro and in vivo probiotic potential of Lactobacillus plantarum B7 and Lactobacillus rhamnosus D1 isolated from Minas artisanal cheese. J Dairy Sci 2019; 102:5957-5961. [PMID: 31128873 DOI: 10.3168/jds.2018-15938] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Accepted: 03/23/2019] [Indexed: 12/15/2022]
Abstract
Some Lactobacillus strains may contribute to the health of the host when administered in adequate concentrations, demonstrating their probiotic potential. In contrast, Listeria monocytogenes is a foodborne pathogen that can cause enteropathy, meningoencephalitis, abortion, and septicemia. The aim of this survey was to evaluate the in vitro and in vivo probiotic potential of Lactobacillus plantarum B7 and Lactobacillus rhamnosus D1, isolated from Minas artisanal cheese of the Serra da Canastra (Minas Gerais, Brazil), against Lis. monocytogenes. We submitted B7 and D1 to in vitro testing (antibiogram, tolerance to bile salts and artificial gastric fluid, and spot-on-lawn) and in vivo testing (relative weight gain in mice). Both Lactobacillus strains demonstrated in vitro inhibitory activity against Lis. monocytogenes, as well as sensitivity to antimicrobials and resistance to gastric acids and bile salts. In the in vivo assays, mice treated with D1 gained more weight than mice in the other groups. These results indicate that D1 could have higher probiotic potential than B7 because improvements in feed conversion may help animals fight infection.
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Affiliation(s)
- G L C Valente
- Departamento de Tecnologia e Inspeção de Produtos de Origem Animal, Escola de Veterinária, Universidade Federal de Minas Gerais, Belo Horizonte, 31270-901, Brazil.
| | - L B Acurcio
- Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, 31270-901, Brazil
| | - L P V Freitas
- Departamento de Tecnologia e Inspeção de Produtos de Origem Animal, Escola de Veterinária, Universidade Federal de Minas Gerais, Belo Horizonte, 31270-901, Brazil
| | - J R Nicoli
- Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, 31270-901, Brazil
| | - A M Silva
- Departamento de Engenharia de Alimentos, Universidade Federal de São João del-Rei, Sete Lagoas, 35701-970, Brazil
| | - M R Souza
- Departamento de Tecnologia e Inspeção de Produtos de Origem Animal, Escola de Veterinária, Universidade Federal de Minas Gerais, Belo Horizonte, 31270-901, Brazil
| | - C F A M Penna
- Departamento de Tecnologia e Inspeção de Produtos de Origem Animal, Escola de Veterinária, Universidade Federal de Minas Gerais, Belo Horizonte, 31270-901, Brazil
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22
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Mandal V, Sen SK, Mandal NC. Detection, Isolation and Partial Characterization of Antifungal Compound(s) Produced by Pediococcus acidilactici LAB 5. Nat Prod Commun 2019. [DOI: 10.1177/1934578x0700200610] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Pediococcus acidilactici LAB 5 produces antifungal compound(s), as well as bacteriocin, which was isolated from vacuum packed fermented meat. This bacterium exhibits varying degrees of antifungal activity against a number of food and feed borne molds and plant pathogenic fungi, such as Alternaria solani, Aspergillus fumigaus, A. parasiticus, Cladosporium herbarum, Colletotrichum acutatum, Curvularia lunata, Fusarium oxysporum, Microsporium sp, Mucor sp, and Penicillium sp. The production of antifungal compound(s) showed a great degree of media specificity and it was strictly restricted to MRS agar media. No production of antifungal compounds was detected in TGE, and TGE+ Tween 80 plates, though the latter supported the highest amount of bacteriocin production at 37°C after 24 hrs. Antifungal compound produced by LAB 5 was extracted using diethyl ether. The minimum inhibitory concentration (MIC) and minimum fungicidal concentration (MFC) of the compound were determined against Curvularia lunata. Chemically the antifungal substance was a phenolic compound with aromatic unsaturation, as evidenced by UV and IR spectroscopy. This is the first report of the production of antifungal compounds by Pediococcus acidilactici LAB 5.
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Affiliation(s)
- Vivekananda Mandal
- Department of Botany, Darjeeling Government College, Darjeeling 734 101, India
| | - Sukanta K. Sen
- Department of Botany, Visva-Bharati, Santiniketan- 731 235, India
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23
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Bhola J, Bhadekar R. Invitro synergistic activity of lactic acid bacteria against multi-drug resistant staphylococci. Altern Ther Health Med 2019; 19:70. [PMID: 30890126 PMCID: PMC6425562 DOI: 10.1186/s12906-019-2470-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 03/01/2019] [Indexed: 12/17/2022]
Abstract
Background Multi-drug resistance in microorganisms is a serious problem at national as well as at a global level. Many researches have suggested alternatives to antibiotics with minimal or no major side effects. LAB is one of the most human-friendly probiotic strains known to mankind from times immemorial. With the objective to deal with progressing antibiotic resistance among microorganisms, the present work demonstrates the inhibitory activity of LAB consortium against MDR clinical isolates. Methods Total of nine hospital isolates of staphylococci were obtained and distinguished as S.aureus and coagulase-negative Staphylococcus (CoNS) based on their ability to ferment mannitol and form clumping with citrated plasma. All the test organisms were tested for antibiotic sensitivity with HiMedia (India) Octadisc Combi 92. Sets of L .plantarum, L .acidophilus and L.casei var. rhamnosus were prepared and tested against a standard culture of S.aureus NCIM 2129 by agar well diffusion method. To identify the primary source of substances responsible for inhibitory action, whole broth, cell-free supernatant, and cell lysate was prepared from the above-mentioned set. These were tested for their inhibitory action initially against standard S.aureus NCIM 2127, followed by clinical isolates. Results The antibiotic sensitivity profile revealed that all clinical isolates were multi-drug resistant. The maximum inhibitory potential was seen in a combination of the three LAB in the ratio 1:1:1. Highest antagonistic activity was observed with whole broth and cell lysate of LAB consortium. In liquid broth assay, the cell lysate of LAB consortium astoundingly exhibited up to 85% inhibition of multi-drug resistant Staphylococcus isolates. Conclusions Our results suggest antagonistic role of LAB metabolites against methicillin resistant staphylococci.
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24
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Qin Y, Wang Y, He Y, Zhang Y, She Q, Chai Y, Li P, Shang Q. Characterization of Subtilin L-Q11, a Novel Class I Bacteriocin Synthesized by Bacillus subtilis L-Q11 Isolated From Orchard Soil. Front Microbiol 2019; 10:484. [PMID: 30930878 PMCID: PMC6429107 DOI: 10.3389/fmicb.2019.00484] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 02/25/2019] [Indexed: 12/25/2022] Open
Abstract
Bacteriocins are peptides or proteins synthesized by bacterial ribosomes that show killing or inhibitory activities against different groups of bacteria. Bacteriocins are considered potential alternatives to traditional antibiotics, preservatives in pharmaceutical and food industries. A strain L-Q11 isolated from orchard soil was phylogenetically characterized as Bacillus subtilis based on 16S rRNA gene sequencing analysis. A novel class I bacteriocin (Subtilin L-Q11), was identified and purified from L-Q11 cell-free supernatant in a four-step procedure, including salt precipitation, cation exchange, gel filtration, and reverse-phase high-performance liquid chromatography (RP-HPLC). The molecular mass (3,552.9 Da) of this novel bacteriocin was determined by Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS). The purified Subtilin L-Q11 exhibited optimal features in pH tolerance, thermostability, and sensitivity to proteases. Further, Subtilin L-Q11 showed inhibitory activities against a number of bacteria including some human pathogens and food spoilage bacteria, in particular Staphylococcus aureus. All these important features make this novel bacteriocin a potential candidate for the development of a new antibacterial drug or food preservative in the future.
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Affiliation(s)
- Yuxuan Qin
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, Key Laboratory of Functional Dairy, China Agricultural University, Beijing, China.,Department of Biology, Northeastern University, Boston, MA, United States
| | - Yao Wang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, Key Laboratory of Functional Dairy, China Agricultural University, Beijing, China
| | - Yinghao He
- Department of Biology, Northeastern University, Boston, MA, United States
| | - Ying Zhang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, Key Laboratory of Functional Dairy, China Agricultural University, Beijing, China
| | - Qianxuan She
- Department of Biology, Northeastern University, Boston, MA, United States
| | - Yunrong Chai
- Department of Biology, Northeastern University, Boston, MA, United States
| | - Pinglan Li
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, Key Laboratory of Functional Dairy, China Agricultural University, Beijing, China
| | - Qingmao Shang
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, The Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
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25
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Caulier S, Nannan C, Gillis A, Licciardi F, Bragard C, Mahillon J. Overview of the Antimicrobial Compounds Produced by Members of the Bacillus subtilis Group. Front Microbiol 2019; 10:302. [PMID: 30873135 PMCID: PMC6401651 DOI: 10.3389/fmicb.2019.00302] [Citation(s) in RCA: 309] [Impact Index Per Article: 61.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 02/05/2019] [Indexed: 12/19/2022] Open
Abstract
Over the last seven decades, applications using members of the Bacillus subtilis group have emerged in both food processes and crop protection industries. Their ability to form survival endospores and the plethora of antimicrobial compounds they produce has generated an increased industrial interest as food preservatives, therapeutic agents and biopesticides. In the growing context of food biopreservation and biological crop protection, this review suggests a comprehensive way to visualize the antimicrobial spectrum described within the B. subtilis group, including volatile compounds. This classification distinguishes the bioactive metabolites based on their biosynthetic pathways and chemical nature: i.e., ribosomal peptides (RPs), volatile compounds, polyketides (PKs), non-ribosomal peptides (NRPs), and hybrids between PKs and NRPs. For each clade, the chemical structure, biosynthesis and antimicrobial activity are described and exemplified. This review aims at constituting a convenient and updated classification of antimicrobial metabolites from the B. subtilis group, whose complex phylogeny is prone to further development.
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Affiliation(s)
- Simon Caulier
- Laboratory of Food and Environmental Microbiology, Earth and Life Institute, Université catholique de Louvain, Louvain-la-Neuve, Belgium.,Laboratory of Phytopathology-Applied Microbiology, Earth and Life Institute, Université catholique de Louvain, Louvain-la-Neuve, Belgium
| | - Catherine Nannan
- Laboratory of Food and Environmental Microbiology, Earth and Life Institute, Université catholique de Louvain, Louvain-la-Neuve, Belgium
| | - Annika Gillis
- Laboratory of Food and Environmental Microbiology, Earth and Life Institute, Université catholique de Louvain, Louvain-la-Neuve, Belgium
| | - Florent Licciardi
- Laboratory of Food and Environmental Microbiology, Earth and Life Institute, Université catholique de Louvain, Louvain-la-Neuve, Belgium
| | - Claude Bragard
- Laboratory of Phytopathology-Applied Microbiology, Earth and Life Institute, Université catholique de Louvain, Louvain-la-Neuve, Belgium
| | - Jacques Mahillon
- Laboratory of Food and Environmental Microbiology, Earth and Life Institute, Université catholique de Louvain, Louvain-la-Neuve, Belgium
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26
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Antagonism of Bacteria from Dog Dental Plaque against Human Cariogenic Bacteria. BIOMED RESEARCH INTERNATIONAL 2018; 2018:2780948. [PMID: 30519572 PMCID: PMC6241363 DOI: 10.1155/2018/2780948] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Accepted: 10/21/2018] [Indexed: 11/20/2022]
Abstract
Dental caries are a process of demineralization and destruction of human teeth. They originate through many factors and are associated with biofilm formation, which consists of bacteria adhered to the teeth that form a structurally and functionally organized mass called dental plaque. Both the presence of Streptococcus mutans and the frequent consumption of sucrose correlate with a higher prevalence of caries in humans. In dogs, however, the incidence of this disease is low, due to factors such as differences in dental microbiota and/or their low consumption of sucrose. This work evaluated the antagonism of bacteria from dog's dental plaque against S. mutans, for the identification of producing strains of biotechnological products for use in preventing caries. This study used 95 bacterial isolates of canine dental plaque from the Veterinary Department at the Federal University of Viçosa, Minas Gerais, Brazil. A spot-on-the-lawn method was performed using Brain Heart Infusion agar with catalase for an initial identification of the antagonistic activity. Additional tests were conducted on the isolates classified as antagonists for confirmation of the activity, using modified Mann-Rogosa-Sharpe medium containing low dextrose concentration. These isolates were incubated at 37°C for 24 hours in anaerobiosis. The peptide nature of inhibition was evaluated using the following proteinases: proteinase K from Tritirachium album, bovine pancreatic trypsin, and type XII-A α-amylase from Bacillus licheniformis. In the initial identification of those strains exhibiting antimicrobial activity, 14 were classified as antagonists. One of the isolates (Bacillus sp.) indicated bacteriocinogenic activity, with a deformed inhibition halo on S. mutans by the addition of trypsin. These results suggest that this bacterial isolate may be applicable to biotechnological use to combat the main etiological agent of caries in humans. Further studies are needed to evaluate the bacteriocinogenic nature of the antimicrobial activities of the other 13 antagonistic bacterial isolates.
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Benabbou R, Subirade M, Desbiens M, Fliss I. The Impact of Chitosan-Divergicin Film on Growth of Listeria monocytogenes in Cold-Smoked Salmon. Front Microbiol 2018; 9:2824. [PMID: 30534117 PMCID: PMC6275435 DOI: 10.3389/fmicb.2018.02824] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 11/02/2018] [Indexed: 12/19/2022] Open
Abstract
The aim of this study was to evaluate the impact of chitosan film, with bacteriocin divergicin 35 incorporate, on growth of Listeria monocytogenes in Cold smoked salmon. The simples of Cold-smoked wild salmon were inoculated with L. monocytogenes and treated with chitosan (100 kDa, 94.7% de-acetylated) and divergicin M35 was stored for 3 weeks at 4-8°C. The compounds were applied to the fish flesh in the form of solution or dried film. The film reduced L. monocytogenes to below the detection limit (<50 cfu/g) and kept total counts below 104 cfu per g compared to 109 cfu per g in control samples while the effectiveness of the solution was very limited. The inhibitory activity of the film lasted for 3 weeks, while the solution had no effect on L. monocytogenes counts measured on day 14. The film provided a better preservation of fish color (redness) and firmness than others treatments, while the solution had little impact on these parameters. It kept the volatile basic nitrogen (17.5 mg N/100 g) below the control value 29.9 mg N/100 g. Divergicin-loaded chitosan film thus may represent an interesting alternative for the bio-preservation of cold-smoked fish.
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Affiliation(s)
- Rajaa Benabbou
- Department of Food Science, Faculty of Agriculture and Food Sciences, Institute of Nutrition and Functional Foods, Université Laval, Québec City, QC, Canada
| | - Muriel Subirade
- Department of Food Science, Faculty of Agriculture and Food Sciences, Institute of Nutrition and Functional Foods, Université Laval, Québec City, QC, Canada
| | - Michel Desbiens
- Centre Technologique des Produits Aquatiques, Ministère de l’Agriculture des Pêcheries et de l’Alimentation, Gaspé, QC, Canada
| | - Ismail Fliss
- Department of Food Science, Faculty of Agriculture and Food Sciences, Institute of Nutrition and Functional Foods, Université Laval, Québec City, QC, Canada
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de Azevedo PODS, Converti A, Gierus M, Oliveira RPDS. Antimicrobial activity of bacteriocin-like inhibitory substance produced by Pediococcus pentosaceus: from shake flasks to bioreactor. Mol Biol Rep 2018; 46:461-469. [PMID: 30448894 DOI: 10.1007/s11033-018-4495-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Accepted: 11/10/2018] [Indexed: 11/29/2022]
Abstract
Bacteriocins are peptides produced by various species of bacteria, especially lactic acid bacteria (LAB), which have a large spectrum of action against spoilage bacteria and foodborne pathogens. However, when not entirely characterized, they are alternatively called bacteriocin-like inhibitory substances (BLIS). Pediococcus pentosaceus ATCC 43200 grew and produced BLIS optimally when cultivated anaerobically in bioreactor for 24 h at 30 °C and 200 rpm in De Man, Rogosa and Sharp (MRS) medium supplemented with 1.5% peptone. Under such optimal conditions, the cell mass concentration (3.41 g/L) was 66% higher, the generation time (1.28 h) 38% shorter and the BLIS activity against different indicator strains significantly higher than in MRS medium without any supplement taken as a control, and the exponential phase started 4 h before. The agar diffusion method showed BLIS inhibition halos against LAB strains with diameter in the range 11.0-19.5 mm and specific areas between 377.1 and 2654.6 mm2/mL, while BLIS activity against Listeria strains was better quantified by the liquid medium assay that showed, for the fermented broth without any dilution, 100 and 50% inhibition of Listeria innocua and Listeria seeligeri growth, respectively. These results highlight the potential of P. pentosaceus BLIS as a natural antimicrobial for application in the food industry.
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Affiliation(s)
| | - Attilio Converti
- Department of Civil, Chemical and Environmental Engineering, Pole of Chemical Engineering, Via Opera Pia 15, 16145, Genoa, Italy
| | - Martin Gierus
- Department of Agrobiotechnology, Institute of Animal Nutrition, Livestock Products, and Nutrition Physiology (TTE), IFA-Tulln, University of Natural Resources and Life Sciences (BOKU), Vienna, Austria
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Fermentative profile and lactic acid bacterial dynamics in non-wilted and wilted alfalfa silage in tropical conditions. Mol Biol Rep 2018; 46:451-460. [DOI: 10.1007/s11033-018-4494-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 11/10/2018] [Indexed: 12/01/2022]
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30
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Jamaluddin N, Ariff AB, Wong FWF. Purification of a Bacteriocin-Like Inhibitory Substance Derived from Pediococcus acidilactici Kp10 by an Aqueous Micellar Two-Phase System. Biotechnol Prog 2018; 35:e2719. [PMID: 30299004 DOI: 10.1002/btpr.2719] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 08/27/2018] [Accepted: 09/16/2018] [Indexed: 01/09/2023]
Abstract
Aqueous micellar two-phase system (AMTPS) is an extractive technique of biomolecule, where it is based on the differential partitioning behavior of biomolecule between a micelle-rich and a micelle-poor phase. In this study, an AMTPS composed of a nonionic surfactant, Triton X-100 (TX-100) was used for purifying a bacteriocin-like inhibitory substance (BLIS) derived from Pediococcus acidilactici Kp10. The influences of the surfactant concentration and the effect of additives on the partitioning behavior and activity yield of the BLIS were investigated. The obtained coexistence curves showed that the mixtures of solutions composed of different surfactant concentrations (5-30% w/w) and 50% w/w crude load were able to separate into two phases at temperatures of above 60 °C. The optimum conditions for BLIS partitioning using the TX-100-based AMTPS were: TX-100 concentration of 22.5% w/w, CFCS load of 50% w/w, incubation time of 30 min at 75 °C, and back-extraction using acetone precipitation. This optimal partitioning resulted in an activity yield of 64.3% and a purification factor of 5.8. Moreover, the addition of several additives, such as sorbitol, KCl, dioctyl sulfosuccinate sodium salt, and Coomassie® Brilliant Blue, demonstrated no improvement in the BLIS separation, except for Amberlite® resin XAD-4, where the activity yield was improved to 70.3% but the purification factor was reduced to 2.3. Results from this study have demonstrated the potential and applicability of TX-100-based AMTPS as a primary recovery method for the BLIS from a complex fermentation broth of P. acidilactici Kp10. © 2018 American Institute of Chemical Engineers Biotechnol. Prog., 35: e2719, 2019.
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Affiliation(s)
- Norfariza Jamaluddin
- Depart. of Bioprocess Technology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia.,Bioprocessing and Biomanufacturing Research Centre, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Arbakariya B Ariff
- Depart. of Bioprocess Technology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia.,Bioprocessing and Biomanufacturing Research Centre, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Fadzlie Wong Faizal Wong
- Depart. of Bioprocess Technology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia.,Bioprocessing and Biomanufacturing Research Centre, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
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Isolation of lactic acid bacteria from grape fruit: antifungal activities, probiotic properties, and in vitro detoxification of ochratoxin A. ANN MICROBIOL 2018. [DOI: 10.1007/s13213-018-1359-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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Naimi S, Zirah S, Hammami R, Fernandez B, Rebuffat S, Fliss I. Fate and Biological Activity of the Antimicrobial Lasso Peptide Microcin J25 Under Gastrointestinal Tract Conditions. Front Microbiol 2018; 9:1764. [PMID: 30123205 PMCID: PMC6085462 DOI: 10.3389/fmicb.2018.01764] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Accepted: 07/16/2018] [Indexed: 11/24/2022] Open
Abstract
The bacteriocin microcin J25 (MccJ25) inhibits the growth of Gram-negative pathogens including Salmonella and Shigella species, and Escherichia coli. This 21-amino acid peptide has remarkable stability to heat and extreme pH values and resistance to many proteases, thanks to a characteristic lasso structure. In this study, we used the dynamic simulator TIM-1 as gastro-intestinal tract model to evaluate the stability and antibacterial activity of MccJ25 during passage through the proximal portion of the human gastrointestinal tract. MccJ25 concentration was measured in the different simulator sections by HPLC, and inhibition of Salmonella enterica serotype Enteritidis was evaluated using qualitative and quantitative assays. LC-MS/MS analysis and subsequent molecular networking analysis on the Global Natural Product Social Molecular Networking platform (GNPS) and analysis of the peptide degradation in the presence of proteolytic enzymes mimicking the gastro-intestinal conditions permitted to delineate the fate of MccJ25 through identification of the main degradation products. MccJ25 was relatively stable under gastric conditions, but degraded rapidly in the compartment mimicking the duodenum, notably in the presence of pancreatin. Among pancreatin components, elastase I appeared primarily responsible for MccJ25 breakdown, while α-chymotrypsin was less efficient.
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Affiliation(s)
- Sabrine Naimi
- STELA Dairy Research Center, Institute of Nutrition and Functional Foods, Université Laval, Québec, QC, Canada
| | - Séverine Zirah
- Laboratoire Molécules de Communication et Adaptation des Microorganismes, Muséum National d’Histoire Naturelle, Centre National de la Recherche Scientifique, Sorbonne Universités, Paris, France
| | - Riadh Hammami
- STELA Dairy Research Center, Institute of Nutrition and Functional Foods, Université Laval, Québec, QC, Canada
| | - Benoît Fernandez
- STELA Dairy Research Center, Institute of Nutrition and Functional Foods, Université Laval, Québec, QC, Canada
| | - Sylvie Rebuffat
- Laboratoire Molécules de Communication et Adaptation des Microorganismes, Muséum National d’Histoire Naturelle, Centre National de la Recherche Scientifique, Sorbonne Universités, Paris, France
| | - Ismail Fliss
- STELA Dairy Research Center, Institute of Nutrition and Functional Foods, Université Laval, Québec, QC, Canada
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34
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Santos JC, Sousa RC, Otoni CG, Moraes AR, Souza VG, Medeiros EA, Espitia PJ, Pires AC, Coimbra JS, Soares NF. Nisin and other antimicrobial peptides: Production, mechanisms of action, and application in active food packaging. INNOV FOOD SCI EMERG 2018. [DOI: 10.1016/j.ifset.2018.06.008] [Citation(s) in RCA: 115] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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35
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de Souza de Azevedo PO, Converti A, Domínguez JM, de Souza Oliveira RP. Stimulating Effects of Sucrose and Inulin on Growth, Lactate, and Bacteriocin Productions by Pediococcus pentosaceus. Probiotics Antimicrob Proteins 2018; 9:466-472. [PMID: 28560515 DOI: 10.1007/s12602-017-9292-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Sucrose and inulin, when combined with glucose, behaved as stimulating agents of bacteriocin production by Pediococcus pentosaceus ATCC 43200. When such microbial strain was grown in glucose-based Man, Rogosa, and Sharpe (MRS) medium, without any additional supplement, it showed higher maximum cell concentration (2.68 ± 1.10 g/L) and longer generation time (2.17 ± 0.02 h), but lower specific growth rate (0.32 ± 0.01 h-1) than in the same medium supplemented with 1.0% of both ingredients (2.53 ± 1.10 g/L, 1.60 ± 0.05 h and 0.43 ± 0.02 h-1, respectively). Glucose replacement by sucrose or inulin almost completely suppressed growth, hence confirming that it is the preferred carbon source for this strain. Qualitatively, similar results were observed for lactate production, which was 59.8% higher in glucose-based medium. Enterococcus and Listeria strains were sensitive to bacteriocin, whose antimicrobial effect after 8 h increased from 120.25 ± 0.35 to 144.00 ± 1.41 or 171.00 ± 1.41 AU/mL when sucrose or inulin was added to the glucose-based MRS medium. Sucrose and inulin were also able to speed up P. pentosaceus growth in the exponential phase.
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Affiliation(s)
- Pamela Oliveira de Souza de Azevedo
- Biochemical and Pharmaceutical Technology Department, Faculty of Pharmaceutical Sciences, University of São Paulo, Av. Lineu Prestes 580, São Paulo, 05508-900, Brazil
| | - Attilio Converti
- Department of Civil, Chemical and Environmental Engineering, Genoa University, 16145, Genoa, Italy
| | - José Manuel Domínguez
- Department of Chemical Engineering, Faculty of Science, University of Vigo (Campus Ourense), As Lagoas s/n, 32004, Ourense, Spain
| | - Ricardo Pinheiro de Souza Oliveira
- Biochemical and Pharmaceutical Technology Department, Faculty of Pharmaceutical Sciences, University of São Paulo, Av. Lineu Prestes 580, São Paulo, 05508-900, Brazil.
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36
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Isolation and Characterization of Bacteriocin Producing Bacteria from Sweet Lime Juice. JOURNAL OF PURE AND APPLIED MICROBIOLOGY 2018. [DOI: 10.22207/jpam.12.2.58] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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37
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de Oliveira LG, Silva GOE, Barbosa CD, Sant'Anna FM, de Castro RD, Figueiredo NC, Nunes ÁC, Lage AP, de Souza MR. Lactic acid bacteria isolated from Brazilian Minas artisanal cheeses and theirin vitroantagonisms againstMycobacterium bovisBCG. INT J DAIRY TECHNOL 2018. [DOI: 10.1111/1471-0307.12540] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Letícia Goulart de Oliveira
- Departamento de Tecnologia e Inspeção de Produtos de Origem Animal, Escola de Veterinária; Universidade Federal de Minas Gerais; Av. Antônio Carlos 6627, Caixa Postal 567 31270-901 Belo Horizonte Brasil
| | - Gabriela Oliveira E Silva
- Departamento de Tecnologia e Inspeção de Produtos de Origem Animal, Escola de Veterinária; Universidade Federal de Minas Gerais; Av. Antônio Carlos 6627, Caixa Postal 567 31270-901 Belo Horizonte Brasil
| | - Cosme Damião Barbosa
- Departamento Alimentos; Faculdade de Farmácia; Universidade Federal de Minas Gerais; Av. Antônio Carlos 6627, Caixa Postal 567 31270-901 Belo Horizonte Brasil
| | - Felipe Machado Sant'Anna
- Departamento de Tecnologia e Inspeção de Produtos de Origem Animal, Escola de Veterinária; Universidade Federal de Minas Gerais; Av. Antônio Carlos 6627, Caixa Postal 567 31270-901 Belo Horizonte Brasil
| | - Renata Dias de Castro
- Departamento de Tecnologia e Inspeção de Produtos de Origem Animal, Escola de Veterinária; Universidade Federal de Minas Gerais; Av. Antônio Carlos 6627, Caixa Postal 567 31270-901 Belo Horizonte Brasil
| | - Naiara Chaves Figueiredo
- Departamento de Tecnologia e Inspeção de Produtos de Origem Animal, Escola de Veterinária; Universidade Federal de Minas Gerais; Av. Antônio Carlos 6627, Caixa Postal 567 31270-901 Belo Horizonte Brasil
| | - Álvaro Cantini Nunes
- Departamento de Biologia Geral; Instituto de Ciências Biológicas; Universidade Federal de Minas Gerais; Av. Antônio Carlos 6627, Caixa Postal 567 31270-901 Belo Horizonte Brasil
| | - Andrey Pereira Lage
- Departamento de Medicina Veterinária Preventiva, Escola de Veterinária; Universidade Federal de Minas Gerais; Av. Antônio Carlos 6627, Caixa Postal 567 31270-901 Belo Horizonte Brasil
| | - Marcelo Resende de Souza
- Departamento de Tecnologia e Inspeção de Produtos de Origem Animal, Escola de Veterinária; Universidade Federal de Minas Gerais; Av. Antônio Carlos 6627, Caixa Postal 567 31270-901 Belo Horizonte Brasil
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38
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Baktash A, Terveer EM, Zwittink RD, Hornung BVH, Corver J, Kuijper EJ, Smits WK. Mechanistic Insights in the Success of Fecal Microbiota Transplants for the Treatment of Clostridium difficile Infections. Front Microbiol 2018; 9:1242. [PMID: 29946308 PMCID: PMC6005852 DOI: 10.3389/fmicb.2018.01242] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2018] [Accepted: 05/23/2018] [Indexed: 12/12/2022] Open
Abstract
Fecal microbiota transplantation has proven to be an effective treatment for infections with the gram-positive enteropathogen Clostridium difficile. Despite its effectiveness, the exact mechanisms that underlie its success are largely unclear. In this review, we highlight the pleiotropic effectors that are transferred during fecal microbiota transfer and relate this to the C. difficile lifecycle. In doing so, we show that it is likely that multiple factors contribute to the elimination of symptoms of C. difficile infections after fecal microbiota transplantation.
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Affiliation(s)
- Amoe Baktash
- Clinical Microbiology Laboratory, Department of Medical Microbiology, Leiden University Medical Center, Leiden, Netherlands
| | - Elisabeth M Terveer
- Clinical Microbiology Laboratory, Department of Medical Microbiology, Leiden University Medical Center, Leiden, Netherlands.,Center for Microbiome Analyses and Therapeutics, Leiden University Medical Center, Leiden, Netherlands.,Netherlands Donor Feces Bank, Leiden, Netherlands
| | - Romy D Zwittink
- Center for Microbiome Analyses and Therapeutics, Leiden University Medical Center, Leiden, Netherlands.,Experimental Bacteriology, Department of Medical Microbiology, Leiden University Medical Center, Leiden, Netherlands
| | - Bastian V H Hornung
- Center for Microbiome Analyses and Therapeutics, Leiden University Medical Center, Leiden, Netherlands.,Experimental Bacteriology, Department of Medical Microbiology, Leiden University Medical Center, Leiden, Netherlands
| | - Jeroen Corver
- Center for Microbiome Analyses and Therapeutics, Leiden University Medical Center, Leiden, Netherlands.,Experimental Bacteriology, Department of Medical Microbiology, Leiden University Medical Center, Leiden, Netherlands
| | - Ed J Kuijper
- Clinical Microbiology Laboratory, Department of Medical Microbiology, Leiden University Medical Center, Leiden, Netherlands.,Center for Microbiome Analyses and Therapeutics, Leiden University Medical Center, Leiden, Netherlands.,Netherlands Donor Feces Bank, Leiden, Netherlands.,Experimental Bacteriology, Department of Medical Microbiology, Leiden University Medical Center, Leiden, Netherlands
| | - Wiep Klaas Smits
- Experimental Bacteriology, Department of Medical Microbiology, Leiden University Medical Center, Leiden, Netherlands
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39
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Tantratian S, Wattanaprasert S, Suknaisilp S. Effect of partial substitution of milk-non-fat with xanthan gum on encapsulation of a probioticLactobacillus. J FOOD PROCESS PRES 2018. [DOI: 10.1111/jfpp.13673] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Sumate Tantratian
- Faculty of Science, Department of Food Technology; Chulalongkorn University; Bangkok Thailand
| | | | - Suttisak Suknaisilp
- Faculty of Science, Department of Food Technology; Chulalongkorn University; Bangkok Thailand
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40
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de Grandi AZ, Pinto UM, Destro MT. Dual-species biofilm of Listeria monocytogenes and Escherichia coli on stainless steel surface. World J Microbiol Biotechnol 2018; 34:61. [PMID: 29651554 DOI: 10.1007/s11274-018-2445-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 04/09/2018] [Indexed: 11/25/2022]
Abstract
Listeria monocytogenes is a Gram-positive bacterium commonly associated with foodborne diseases. Due its ability to survive under adverse environmental conditions and to form biofilm, this bacterium is a major concern for the food industry, since it can compromise sanitation procedures and increase the risk of post-processing contamination. Little is known about the interaction between L. monocytogenes and Gram-negative bacteria on biofilm formation. Thus, in order to evaluate this interaction, Escherichia coli and L. monocytogenes were tested for their ability to form biofilms together or in monoculture. We also aimed to evaluate the ability of L. monocytogenes 1/2a and its isogenic mutant strain (ΔprfA ΔsigB) to form biofilm in the presence of E. coli. We assessed the importance of the virulence regulators, PrfA and σB, in this process since they are involved in many aspects of L. monocytogenes pathogenicity. Biofilm formation was assessed using stainless steel AISI 304 #4 slides immersed into brain heart infusion broth, reconstituted powder milk and E. coli preconditioned medium at 25 °C. Our results indicated that a higher amount of biofilm was formed by the wild type strain of L. monocytogenes than by its isogenic mutant, indicating that prfA and sigB are important for biofilm development, especially maturation under our experimental conditions. The presence of E. coli or its metabolites in preconditioned medium did not influence biofilm formation by L. monocytogenes. Our results confirm the possibility of concomitant biofilm formation by L. monocytogenes and E. coli, two bacteria of major significance in the food industry.
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Affiliation(s)
- Aline Zago de Grandi
- Department of Food and Experimental Nutrition, Faculty of Pharmaceutical Sciences, University of São Paulo, Av. Prof. Lineu Prestes 580 B.14, 05508-900, São Paulo, SP, Brazil
| | - Uelinton Manoel Pinto
- Department of Food and Experimental Nutrition, Faculty of Pharmaceutical Sciences, University of São Paulo, Av. Prof. Lineu Prestes 580 B.14, 05508-900, São Paulo, SP, Brazil.
- Food Research Center (FoRC), Faculty of Pharmaceutical Sciences, University of São Paulo, Av. Prof. Lineu Prestes 580 B.14, 05508-900, São Paulo, SP, Brazil.
| | - Maria Teresa Destro
- Department of Food and Experimental Nutrition, Faculty of Pharmaceutical Sciences, University of São Paulo, Av. Prof. Lineu Prestes 580 B.14, 05508-900, São Paulo, SP, Brazil
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41
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Song S, Vuai MS, Zhong M. The role of bacteria in cancer therapy - enemies in the past, but allies at present. Infect Agent Cancer 2018; 13:9. [PMID: 29568324 PMCID: PMC5856380 DOI: 10.1186/s13027-018-0180-y] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Accepted: 02/15/2018] [Indexed: 12/20/2022] Open
Abstract
In recent decades, bacteria’s therapeutic role has aroused attention in medicinal and pharmaceutical research. While bacteria are considered among the primary agents for causing cancer, recent research has shown intriguing results suggesting that bacteria can be effective agents for cancer treatment – they are the perfect vessels for targeted cancer therapy. Several bacterial strains/species have been discovered to possess inherent oncolytic potentials to invade and colonize solid tumors in vivo. The therapeutic strategy of using bacteria for treating cancer is considered to be effective; however, the severe side effects encountered during the treatment resulted in the abandonment of the therapy. State-of-the-art genetic engineering has been recently applied to bacteria therapy and resulted in a greater efficacy with minimum side effects. In addition, the anti-cancer potential of tumor-targeting bacteria through oral administration circumvents the use of the intravenous route and the associated adverse effects. This review aims to provide a comprehensive summary of the latest literature on the role of bacteria in cancer treatment.
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Affiliation(s)
- Shiyu Song
- 1Department of Medical Microbiology, Dalian Medical University, 9 Western Section, Lvshun South Road, Lvshunkou District, Dalian, 116044 China
| | - Miza S Vuai
- 1Department of Medical Microbiology, Dalian Medical University, 9 Western Section, Lvshun South Road, Lvshunkou District, Dalian, 116044 China.,2Department of Natural Science, State University of Zanzibar (SUZA), P.O Box 146, Zanzibar, Tanzania
| | - Mintao Zhong
- 1Department of Medical Microbiology, Dalian Medical University, 9 Western Section, Lvshun South Road, Lvshunkou District, Dalian, 116044 China
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42
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Ayed A, Slama N, Mankai H, Bachkouel S, ElKahoui S, Tabbene O, Limam F. Streptomyces tunisialbus sp. nov., a novel Streptomyces species with antimicrobial activity. Antonie van Leeuwenhoek 2018; 111:1571-1581. [PMID: 29464542 DOI: 10.1007/s10482-018-1046-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2017] [Accepted: 02/07/2018] [Indexed: 10/18/2022]
Abstract
A novel actinomycete strain designated S2T was isolated from Tunisian rhizosphere soil of Lavandula officinalis. This isolate exhibited broad spectrum antibacterial activity against several Gram-positive and Gram-negative bacteria and also antifungal activity against yeast and filamentous fungi. The isolate S2T presents morphological and chemotaxonomic characteristics typical of the members of the genus Streptomyces. Whole cell hydrolysates of S2T were found to contain LL-diaminopimelic acid. The major fatty acids were identified as C16:0, anteiso-C15:0 and iso-C16:0 whereas the predominant menaquinones were found to be MK-9(H6) and MK-9(H8). The polar lipids were identified as diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol, phosphatidylinositol, phosphatidylinositol mannoside and three unidentified compounds. The G+C content of the genomic DNA was determined to be 71.8 mol%. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain S2T belongs to the genus Streptomyces and is closely related to Streptomyces netropsis DSM 40259T with 99.86% sequence similarity. Multi-locus sequence analysis (MLSA) based on four house-keeping gene alleles (gyrB, recA, trpB, rpoB) showed that isolate S2T is closely related to S. netropsis, with an MLSA distance greater than 0.007. The DNA-DNA relatedness between strain S2T and its near phylogenetic neighbour was 63.6 ± 2.3%, which is lower than the 70% threshold value for delineation of genomic prokaryotic species. This isolate was also distinguished from the type strain S. netropsis DSM 40259T, using a combination of morphological and physiological features. Based on its phenotypic and molecular properties, strain S2T is considered to represent a novel species of the genus Streptomyces, for which the name Streptomyces tunisialbus sp. nov. is proposed. The type strain is S2T (= JCM 32165T = DSM 105760T).
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Affiliation(s)
- Ameni Ayed
- Laboratoire des Substances Bioactives, Centre de Biotechnologie de Borj Cedria, BP-901, 2050, Hammam-Lif, Tunisia.,Université Tunis El Manar, Campus Universitaire Farhat Hached, Rommana, BP-94, 1068, Tunis, Tunisia
| | - Nedra Slama
- Laboratoire des Substances Bioactives, Centre de Biotechnologie de Borj Cedria, BP-901, 2050, Hammam-Lif, Tunisia.,UR04CNSTN01, Applications Médicales et Agricoles des Techniques Nucléaires. Centre National des Sciences et des Technologies Nucléaires, Technopole de Sidi Thabet, 2020, Tunis, Tunisia
| | - Houda Mankai
- Laboratoire des Substances Bioactives, Centre de Biotechnologie de Borj Cedria, BP-901, 2050, Hammam-Lif, Tunisia.,Université Tunis El Manar, Campus Universitaire Farhat Hached, Rommana, BP-94, 1068, Tunis, Tunisia
| | - Sarra Bachkouel
- Laboratoire des Substances Bioactives, Centre de Biotechnologie de Borj Cedria, BP-901, 2050, Hammam-Lif, Tunisia
| | - Salem ElKahoui
- Laboratoire des Substances Bioactives, Centre de Biotechnologie de Borj Cedria, BP-901, 2050, Hammam-Lif, Tunisia
| | - Olfa Tabbene
- Laboratoire des Substances Bioactives, Centre de Biotechnologie de Borj Cedria, BP-901, 2050, Hammam-Lif, Tunisia
| | - Ferid Limam
- Laboratoire des Substances Bioactives, Centre de Biotechnologie de Borj Cedria, BP-901, 2050, Hammam-Lif, Tunisia.
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43
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Arumugam T, Dhanam S, Rameshkumar N, Krishnan M, Kayalvizhi N. Inhibition of Methicillin Resistant Staphylococcus aureus by Bacteriocin Producing Pseudomonas aeruginosa. Int J Pept Res Ther 2018. [DOI: 10.1007/s10989-018-9676-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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44
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Clemens R, Zaschke-Kriesche J, Khosa S, Smits SHJ. Insight into Two ABC Transporter Families Involved in Lantibiotic Resistance. Front Mol Biosci 2018; 4:91. [PMID: 29404338 PMCID: PMC5786555 DOI: 10.3389/fmolb.2017.00091] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Accepted: 12/08/2017] [Indexed: 01/01/2023] Open
Abstract
Antimicrobial peptides, which contain (methyl)-lanthionine-rings are called lantibiotics. They are produced by several Gram-positive bacteria and are mainly active against these bacteria. Although these are highly potent antimicrobials, some human pathogenic bacteria express specific ABC transporters that confer resistance and counteract their antimicrobial activity. Two distinct ABC transporter families are known to be involved in this process. These are the Cpr- and Bce-type ABC transporter families, named after their involvement in cationic peptide resistance in Clostridium difficile, and bacitracin efflux in Bacillus subtilis, respectively. Both resistance systems differentiate to each other in terms of the proteins involved. Here, we summarize the current knowledge and describe the divergence as well as the common features present in both the systems to confer lantibiotic resistance.
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Affiliation(s)
- Rebecca Clemens
- Institute of Biochemistry, Heinrich-Heine-University Duesseldorf, Duesseldorf, Germany
| | | | - Sakshi Khosa
- Institute of Biochemistry, Heinrich-Heine-University Duesseldorf, Duesseldorf, Germany
| | - Sander H J Smits
- Institute of Biochemistry, Heinrich-Heine-University Duesseldorf, Duesseldorf, Germany
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45
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HARTAJANIE LAKSMI, LINDAYANI LINDAYANI, SANTOSO LORENTIA. The Effect of Carbon and Nitrogen Supplementation on Bacteriocin Production of Lactic Acid Bacteria from Pickled Yellow Bamboo Shoots (Dendrocalamus asper). MICROBIOLOGY INDONESIA 2018. [DOI: 10.5454/mi.12.1.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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46
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Mazguene S, Rossi M, Gogliettino M, Palmieri G, Cocca E, Mirino S, Imadalou-Idres N, Benallaoua S. Isolation and characterization from solar salterns of North Algeria of a haloarchaeon producing a new halocin. Extremophiles 2017; 22:259-270. [PMID: 29288279 DOI: 10.1007/s00792-017-0994-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Accepted: 12/18/2017] [Indexed: 10/18/2022]
Abstract
Halophilic archaea, thriving in hypersaline environments, synthesize antimicrobial substances with an unknown role, called halocins. It has been suggested that halocin production gives transient competitive advantages to the producer strains and represents one of the environmental factors influencing the microbial community composition. Herein, we report on the antibacterial activity of a new haloarchaeon selected from solar salterns of the northern coast of Algeria. A total of 81 halophilic strains, isolated from the microbial consortia, were screened for the production of antimicrobial compounds by interspecies competition test and against a collection of commercial haloarchaea. On the basis of the partial 16S rRNA sequencing, the most efficient halocin producer was recognized as belonging to Haloferax (Hfx) sp., while the best indicator microorganism, showing high sensitivity toward halocin, was related to Haloarcula genus. The main morphological, physiological and biochemical properties of Hfx were investigated and a partial purification of the produced halocin was allowed to identify it as a surface membrane protein with a molecular mass between 30 and 40 kDa. Therefore, in this study, we isolated a new strain belonging to Haloferax genus and producing a promising antimicrobial compound useful for applications in health and food industries.
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Affiliation(s)
- Souhila Mazguene
- Laboratory of Applied Microbiology (LMA), Faculty of Natural and Life Sciences, University Abderrahmane Mira of Bejaia, Targa Ouzemour, 06000, Bejaïa, Algeria
| | - Mosè Rossi
- Institute of Biosciences and BioResources (IBBR), National Research Council (CNR), Via Pietro Castellino, 80131, Naples, Italy
| | - Marta Gogliettino
- Institute of Biosciences and BioResources (IBBR), National Research Council (CNR), Via Pietro Castellino, 80131, Naples, Italy
| | - Gianna Palmieri
- Institute of Biosciences and BioResources (IBBR), National Research Council (CNR), Via Pietro Castellino, 80131, Naples, Italy.
| | - Ennio Cocca
- Institute of Biosciences and BioResources (IBBR), National Research Council (CNR), Via Pietro Castellino, 80131, Naples, Italy
| | - Sara Mirino
- Institute of Biosciences and BioResources (IBBR), National Research Council (CNR), Via Pietro Castellino, 80131, Naples, Italy
| | - Nacera Imadalou-Idres
- Laboratory of Applied Microbiology (LMA), Faculty of Natural and Life Sciences, University Abderrahmane Mira of Bejaia, Targa Ouzemour, 06000, Bejaïa, Algeria
| | - Said Benallaoua
- Laboratory of Applied Microbiology (LMA), Faculty of Natural and Life Sciences, University Abderrahmane Mira of Bejaia, Targa Ouzemour, 06000, Bejaïa, Algeria
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47
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Ankaiah D, Esakkiraj P, Perumal V, Ayyanna R, Venkatesan A. Probiotic characterization of Enterococcus faecium por1: Cloning, over expression of Enterocin-A and evaluation of antibacterial, anti-cancer properties. J Funct Foods 2017. [DOI: 10.1016/j.jff.2017.09.034] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Oliveira M, Ferreira V, Magalhães R, Teixeira P. Biocontrol strategies for Mediterranean-style fermented sausages. Food Res Int 2017; 103:438-449. [PMID: 29389634 DOI: 10.1016/j.foodres.2017.10.048] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Revised: 10/13/2017] [Accepted: 10/28/2017] [Indexed: 11/26/2022]
Abstract
Naturally fermented meat sausages have a long tradition in Mediterranean countries and are one of the most important groups of traditional foods consumed throughout Europe. Despite all the advances in food science and technology and increased regulatory requirements and concerns for safety and quality during the last decades, the challenge to control important foodborne pathogens in this type of meat products still persists. Simultaneously, growing consumer interest in safe, high quality and minimal processed products, with less additives/preservatives have driven the food industry and scientists in a crusade for innovative technologies to maintain the safety of these products by natural means. Biological control (biocontrol) fits well within this tendency. This review summarizes the latest achievements on biocontrol strategies applied to Mediterranean-style fermented sausages, namely: (i) bioprotective cultures; (ii) bacteriocins; and, (iii) essential oils (EOs).
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Affiliation(s)
- Márcia Oliveira
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Arquiteto Lobão Vital, Apartado 2511, 4202-401, Porto, Portugal
| | - Vânia Ferreira
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Arquiteto Lobão Vital, Apartado 2511, 4202-401, Porto, Portugal
| | - Rui Magalhães
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Arquiteto Lobão Vital, Apartado 2511, 4202-401, Porto, Portugal
| | - Paula Teixeira
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Arquiteto Lobão Vital, Apartado 2511, 4202-401, Porto, Portugal.
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Johnson EM, Jung DYG, Jin DYY, Jayabalan DR, Yang DSH, Suh JW. Bacteriocins as food preservatives: Challenges and emerging horizons. Crit Rev Food Sci Nutr 2017; 58:2743-2767. [PMID: 28880573 DOI: 10.1080/10408398.2017.1340870] [Citation(s) in RCA: 89] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The increasing demand for fresh-like food products and the potential health hazards of chemically preserved and processed food products have led to the advent of alternative technologies for the preservation and maintenance of the freshness of the food products. One such preservation strategy is the usage of bacteriocins or bacteriocins producing starter cultures for the preservation of the intended food matrixes. Bacteriocins are ribosomally synthesized smaller polypeptide molecules that exert antagonistic activity against closely related and unrelated group of bacteria. This review is aimed at bringing to lime light the various class of bacteriocins mainly from gram positive bacteria. The desirable characteristics of the bacteriocins which earn them a place in food preservation technology, the success story of the same in various food systems, the various challenges and the strategies employed to put them to work efficiently in various food systems has been discussed in this review. From the industrial point of view various aspects like the improvement of the producer strains, downstream processing and purification of the bacteriocins and recent trends in engineered bacteriocins has also been briefly discussed in this review.
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Affiliation(s)
- Eldin Maliyakkal Johnson
- a Centre for Nutraceutical and Pharmaceutical Materials , College of Natural Science , Myongji University , Yongin , Korea.,b Food Microbiology and Bioprocess Laboratory , Department of Life Science, National Institute of Technology , Rourkela, Odisha , India
| | - Dr Yong-Gyun Jung
- c Interdisciplinary Program of Biomodulation , College of Natural Science , Myongji University , Yongin , Korea
| | - Dr Ying-Yu Jin
- d Myongji University Bioefficiency Research Centre , College of Natural Science , Myongji University , Yongin , Korea
| | - Dr Rasu Jayabalan
- b Food Microbiology and Bioprocess Laboratory , Department of Life Science, National Institute of Technology , Rourkela, Odisha , India
| | - Dr Seung Hwan Yang
- e Department of Biotechnology , Chonnam National University-Yeosu Campus , Yeosu , Korea
| | - Joo Won Suh
- a Centre for Nutraceutical and Pharmaceutical Materials , College of Natural Science , Myongji University , Yongin , Korea.,f Division of Bioscience and Bioinformatics , College of Natural Science, Myongji University , Yongin , Korea
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Fahim HA, Rouby WMAE, El-Gendy AO, Khairalla AS, Naguib IA, Farghali AA. Enhancement of the productivity of the potent bacteriocin avicin A and improvement of its stability using nanotechnology approaches. Sci Rep 2017; 7:10604. [PMID: 28878272 PMCID: PMC5587769 DOI: 10.1038/s41598-017-10157-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Accepted: 08/02/2017] [Indexed: 01/25/2023] Open
Abstract
Herein, enhancements of the yield and antimicrobial activity duration of the bacteriocin avicin A were accomplished using fractional factorial design (FFD) and layered double hydroxide (LDH) nanoparticles. Firstly, potential factors affecting bacteriocin production were selected for preliminary study. By a 25-1 FFD, high pH was shown to have a positive effect on avicin A yield, while temperature and duration of incubation, as well as peptone nitrogen sources all had negative effects. The highest bacteriocin production and activity (2560 BU/ml) were observed after 30 h of incubation at 30 °C, with pH adjustment at 7, and in the presence of 2 g mannitol as carbon source and 2.2 g peptone as nitrogen source. Secondly, avicin A nanocomposites with different LDH precursors were tested. Only avicin A-ZnAl-CO3 LDH demonstrated a potent antimicrobial activity against Lactobacillus sakei LMGT 2313 that lasted for at least 24 days, as compared to the values of 6 and 15 days observed with the free avicin A that has been stored at room temperature and at 4 °C, respectively. In conclusion, avicin A production and stability can be improved by manipulating the growth conditions and media composition, together with conjugation to LDHs.
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Affiliation(s)
- Hazem A Fahim
- Biotechnology and Life Sciences Department, Faculty of Postgraduate Studies for Advanced Sciences (PSAS), Beni-Suef University, Beni-Suef, Egypt
| | - Waleed M A El Rouby
- Materials Science and Nanotechnology Department, Faculty of Postgraduate Studies for Advanced Sciences (PSAS), Beni-Suef University, Beni-Suef, Egypt
| | - Ahmed O El-Gendy
- Microbiology and Immunology Department, Faculty of Pharmacy, Beni-Suef University, Beni-Suef, Egypt.
| | - Ahmed S Khairalla
- Microbiology and Immunology Department, Faculty of Pharmacy, Beni-Suef University, Beni-Suef, Egypt.
| | - Ibrahim A Naguib
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Beni-Suef University, Beni-Suef, Egypt
| | - Ahmed A Farghali
- Materials Science and Nanotechnology Department, Faculty of Postgraduate Studies for Advanced Sciences (PSAS), Beni-Suef University, Beni-Suef, Egypt
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