201
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Müller D, Carrasco M, Tonarelli G, Simonetta A. Characterization and purification of a new bacteriocin with a broad inhibitory spectrum produced byLactobacillus plantarumlp 31 strain isolated from dry-fermented sausage. J Appl Microbiol 2009; 106:2031-40. [DOI: 10.1111/j.1365-2672.2009.04173.x] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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202
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Benabbou R, Zihler A, Desbiens M, Kheadr E, Subirade M, Fliss I. Inhibition ofListeria monocytogenesby a combination of chitosan and divergicin M35. Can J Microbiol 2009; 55:347-55. [DOI: 10.1139/w08-154] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The antimicrobial activities of the class IIa bacteriocin divergicin M35 and several types of chitosan against Listeria monocytogenes were quantified by agar diffusion, critical micro-dilution, and viable count and observed by electron microscopy. Antimicrobial activity of chitosan depended on its molecular mass (MM) and the pH. Three chitosans with MM values of 2, 20, and 100 kDa and 87.4% degree of deacetylation (DDA) were chosen for further study, based on high anti-listerial activity at pH 4.5. Electron microscopy suggested that the mechanism of anti-listerial activity also varied with the MM. Low-MM chitosan appeared to inhibit L. monocytogenes by affecting cell permeability and growth, whereas medium- and high-MM chitosan may form a barrier on the cell surface that prevents entry of nutrients. The minimum inhibitory concentrations (MICs) of 2, 20, and 100 kDa chitosan and divergicin M35 against a divergicin-resistant strain of L. monocytogenes (LSD 535) were 2.5, 2.5, 0.625, and 0.25 mg/mL, respectively. The combination of any of these 3 chitosans and divergicin M35 appeared to have an additive effect against L. monocytogenes, as determined by fractional inhibitory concentration (FIC) index. This study provides useful data for the development of chitosan films incorporating divergicin M35 for inhibiting L. monocytogenes in foods.
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Affiliation(s)
- R. Benabbou
- Institut des Nutraceutiques et des aliments fonctionnels, Université Laval, QC G1K 7P4, Canada
- Institute of Food Science and Nutrition, Swiss Federal Institute of Technology, ETH Zentrum, LFO F18 CH-8092 Zurich, Switzerland
- Centre Technologique des Produits aquatiques, Ministère de l’Agriculture des Pêcheries et de l’Alimentation, Gaspé, QC G4X 2V6, Canada
- Department of Dairy Science and Technology, Faculty of Agriculture, University of Alexandria, Alexandria, Egypt
| | - A. Zihler
- Institut des Nutraceutiques et des aliments fonctionnels, Université Laval, QC G1K 7P4, Canada
- Institute of Food Science and Nutrition, Swiss Federal Institute of Technology, ETH Zentrum, LFO F18 CH-8092 Zurich, Switzerland
- Centre Technologique des Produits aquatiques, Ministère de l’Agriculture des Pêcheries et de l’Alimentation, Gaspé, QC G4X 2V6, Canada
- Department of Dairy Science and Technology, Faculty of Agriculture, University of Alexandria, Alexandria, Egypt
| | - M. Desbiens
- Institut des Nutraceutiques et des aliments fonctionnels, Université Laval, QC G1K 7P4, Canada
- Institute of Food Science and Nutrition, Swiss Federal Institute of Technology, ETH Zentrum, LFO F18 CH-8092 Zurich, Switzerland
- Centre Technologique des Produits aquatiques, Ministère de l’Agriculture des Pêcheries et de l’Alimentation, Gaspé, QC G4X 2V6, Canada
- Department of Dairy Science and Technology, Faculty of Agriculture, University of Alexandria, Alexandria, Egypt
| | - E. Kheadr
- Institut des Nutraceutiques et des aliments fonctionnels, Université Laval, QC G1K 7P4, Canada
- Institute of Food Science and Nutrition, Swiss Federal Institute of Technology, ETH Zentrum, LFO F18 CH-8092 Zurich, Switzerland
- Centre Technologique des Produits aquatiques, Ministère de l’Agriculture des Pêcheries et de l’Alimentation, Gaspé, QC G4X 2V6, Canada
- Department of Dairy Science and Technology, Faculty of Agriculture, University of Alexandria, Alexandria, Egypt
| | - M. Subirade
- Institut des Nutraceutiques et des aliments fonctionnels, Université Laval, QC G1K 7P4, Canada
- Institute of Food Science and Nutrition, Swiss Federal Institute of Technology, ETH Zentrum, LFO F18 CH-8092 Zurich, Switzerland
- Centre Technologique des Produits aquatiques, Ministère de l’Agriculture des Pêcheries et de l’Alimentation, Gaspé, QC G4X 2V6, Canada
- Department of Dairy Science and Technology, Faculty of Agriculture, University of Alexandria, Alexandria, Egypt
| | - I. Fliss
- Institut des Nutraceutiques et des aliments fonctionnels, Université Laval, QC G1K 7P4, Canada
- Institute of Food Science and Nutrition, Swiss Federal Institute of Technology, ETH Zentrum, LFO F18 CH-8092 Zurich, Switzerland
- Centre Technologique des Produits aquatiques, Ministère de l’Agriculture des Pêcheries et de l’Alimentation, Gaspé, QC G4X 2V6, Canada
- Department of Dairy Science and Technology, Faculty of Agriculture, University of Alexandria, Alexandria, Egypt
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203
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FRANCIOSI E, SETTANNI L, CAVAZZA A, POZNANSKI E. PRESENCE OF ENTEROCOCCI IN RAW COW'S MILK AND “PUZZONE DI MOENA” CHEESE. J FOOD PROCESS PRES 2009. [DOI: 10.1111/j.1745-4549.2008.00262.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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204
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Tomé E, Todorov SD, Gibbs PA, Teixeira PC. Partial Characterization of Nine Bacteriocins Produced by Lactic Acid Bacteria Isolated from Cold-Smoked Salmon with Activity againstListeria monocytogenes. FOOD BIOTECHNOL 2009. [DOI: 10.1080/08905430802671956] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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205
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Thakur RL, Roy U. Antibacterial Activity of Leuconostoc lactis Isolated from Raw Cattle Milk and its Preliminary Optimization for the Bacteriocin Production. ACTA ACUST UNITED AC 2009. [DOI: 10.3923/jm.2009.122.131] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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206
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Knockout of three-component regulatory systems reveals that the apparently constitutive plantaricin-production phenotype shown by Lactobacillus plantarum on solid medium is regulated via quorum sensing. Int J Food Microbiol 2009; 130:35-42. [DOI: 10.1016/j.ijfoodmicro.2008.12.033] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2008] [Revised: 12/22/2008] [Accepted: 12/28/2008] [Indexed: 11/20/2022]
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207
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Streptococcal Bacteriocin-Like Inhibitory Substances: Some Personal Insights into the Bacteriocin-Like Activities Produced by Streptococci Good and Bad. Probiotics Antimicrob Proteins 2009; 1:60-6. [PMID: 26783132 DOI: 10.1007/s12602-008-9002-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2008] [Accepted: 12/09/2008] [Indexed: 10/21/2022]
Abstract
The background to the discovery and commercial development of the first Streptococcus salivarius probiotic is documented. A 40-year search of the genus Streptococcus for a harmless natural antagonist of Streptococcus pyogenes had as its operational basis a simple deferred antagonism "fingerprinting" procedure, the application of which results in each tested strain being accorded an inhibitor production (P)-type and inhibitor sensitivity (S)-type profile. Systematic application of this schema has opened a "Pandora's Box" of novel streptococcal bacteriocin-like inhibitory substances (BLIS). The numerically prominent commensal S. salivarius is proposed to have a pivotal population-modulating role within the oral microbiota of humans. The probiotic strain S. salivarius K12 produces several megaplasmid-encoded BLIS including the lantibiotics salivaricin A and salivaricin B. Strain K12 and other BLIS-producing S. salivarius are currently in use or under development for application to the control of a variety of common maladies and infections of the human oral cavity.
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208
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Improvement of the food safety of low acid fermented sausages by enterocins A and B and high pressure. Food Control 2009. [DOI: 10.1016/j.foodcont.2008.04.001] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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209
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RASHID HU, TOGO K, UEDA M, MIYAMOTO T. Characterization of bacteriocin produced byStreptococcus bovisJ2 40-2 isolated from traditional fermented milk ‘Dahi’. Anim Sci J 2009; 80:70-8. [DOI: 10.1111/j.1740-0929.2008.00596.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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210
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Lee SS, Oh TJ, Kim J, Kim JB, Lee HS. Bacteriocin from Purple Nonsulfur Phototrophic Bacteria, Rhodobacter capsulatus. ACTA ACUST UNITED AC 2009. [DOI: 10.4167/jbv.2009.39.4.269] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Sang-Seob Lee
- Department of Life Science, Kyonggi University, Suwon, Korea
| | | | - Jaisoo Kim
- Department of Life Science, Kyonggi University, Suwon, Korea
| | - Jong-Bae Kim
- School of Life & Food Sciences, Handong Global University, Pohang, Korea
| | - Hyun-Soon Lee
- Department of Biological Sciences, Sungkyunkwan University, Suwon, Korea
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211
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Jasniewski J, Cailliez-Grimal C, Younsi M, Millière JB, Revol-Junelles AM. Fluorescence anisotropy analysis of the mechanism of action of mesenterocin 52A: speculations on antimicrobial mechanism. Appl Microbiol Biotechnol 2008; 81:339-47. [DOI: 10.1007/s00253-008-1677-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2008] [Revised: 08/21/2008] [Accepted: 08/21/2008] [Indexed: 11/28/2022]
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212
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Characterization and partial purification of entomocin 110, a newly identified bacteriocin from Bacillus thuringiensis subsp. Entomocidus HD110. Microbiol Res 2008; 163:684-92. [DOI: 10.1016/j.micres.2006.10.005] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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213
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De Oliveira SS, Abrantes J, Cardoso M, Sordelli D, Bastos MCF. Staphylococcal strains involved in bovine mastitis are inhibited byStaphylococcus aureusantimicrobial peptides. Lett Appl Microbiol 2008. [DOI: 10.1046/j.1472-765x.1998.00431.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
| | - J. Abrantes
- Departamento de Microbiologia Geral, Instituto de Microbiologia, Universidade Federal do Rio de Janeiro,
| | - M. Cardoso
- Departamento de Microbiologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil, and
| | - D. Sordelli
- Departamento de Microbiologia da Facultad de Medicina de Universidad de Buenos Aires, Argentina
| | - M. C. F. Bastos
- Departamento de Microbiologia Geral, Instituto de Microbiologia, Universidade Federal do Rio de Janeiro,
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214
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Rattanachaikunsopon P, Phumkhachorn P. Incidence of nisin Z production in Lactococcus lactis subsp. lactis TFF 221 isolated from Thai fermented foods. J Food Prot 2008; 71:2024-9. [PMID: 18939747 DOI: 10.4315/0362-028x-71.10.2024] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Lactic acid bacteria isolated from various Thai fermented foods were screened for the presence of nisin gene by using PCR with primers specific to nisin A structural gene. Only one strain, Lactococcus lactis subsp. lactis TFF 221, isolated from kung jom, a traditional shrimp paste, was found to carry a nisin gene. The TFF 221 nisin had antimicrobial activity against not only closely related lactic acid bacteria but also some foodborne pathogens. It was heat stable and inactivated by alpha-chymotrypsin and proteinase K. Some characteristics of TFF 221 nisin were found to be very similar to those of nisin A produced by Lactococcus lactis subsp. lactis NCDO 2111. Both of them had the same antimicrobial spectrum and MICs against all indicator bacteria. However, when assayed with indicator organisms, in all cases the TFF 221 nisin produced larger zones of inhibition in agar diffusion assays than the nisin A did. Sequencing of the TFF 221 nisin gene showed that it was the natural nisin variant, nisin Z, as indicated by the substitution of asparagine residue instead of histidine at position 27. The nisin determinant in strain TFF 221 was found to be located on a conjugative transposon residing in the chromosome. The ability of the nisin produced by L. lactis subsp. lactis TFF 221 to inhibit a wide range of foodborne pathogens may be useful in improving the food safety of the fermented product, especially in the Thai environment, which suffers from perennial problems of poor food hygiene.
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Affiliation(s)
- Pongsak Rattanachaikunsopon
- Department of Biological Science, Faculty of Science, Ubon Ratchathani University, Warin Chamrap, Ubon Ratchathani 34190, Thailand.
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215
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Chollet E, Sebti I, Martial-Gros A, Degraeve P. Nisin preliminary study as a potential preservative for sliced ripened cheese: NaCl, fat and enzymes influence on nisin concentration and its antimicrobial activity. Food Control 2008. [DOI: 10.1016/j.foodcont.2007.10.005] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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216
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Foulquié Moreno MR, Baert B, Denayer S, Cornelis P, De Vuyst L. Characterization of the amylovorin locus ofLactobacillus amylovorusDCE 471, producer of a bacteriocin active againstPseudomonas aeruginosa, in combination with colistin and pyocins. FEMS Microbiol Lett 2008; 286:199-206. [DOI: 10.1111/j.1574-6968.2008.01275.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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217
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An investigation of the bacteriocinogenic potential of lactic acid bacteria associated with wheat (Triticum durum) kernels and non-conventional flours. Lebensm Wiss Technol 2008. [DOI: 10.1016/j.lwt.2007.07.022] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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218
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Potala S, Sahoo SK, Verma RS. Targeted therapy of cancer using diphtheria toxin-derived immunotoxins. Drug Discov Today 2008; 13:807-15. [DOI: 10.1016/j.drudis.2008.06.017] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2008] [Revised: 06/23/2008] [Accepted: 06/26/2008] [Indexed: 11/24/2022]
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219
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Tiwari SK, Srivastava S. Characterization of a Bacteriocin fromLactobacillus plantarumStrain LR/14. FOOD BIOTECHNOL 2008. [DOI: 10.1080/08905430802262582] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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220
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Abstract
It is probable that nearly every natural product structure results from interactions between organisms. Symbiosis, a subset of inter-organism interactions involving closely associated partners, has recently provided new and interesting experimental systems for the study of these interactions. This review discusses new observations about natural product function and structural evolution that emerge from the study of symbiotic systems. In particular, these advances directly address long-standing 'how' and 'why' questions about natural products, providing fundamental insights about the evolution, origin and purpose of natural products that are inaccessible by other methods.
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Affiliation(s)
- Eric W Schmidt
- Department of Medicinal Chemistry, University of Utah, 30 South 2000 East, Salt Lake City, Utah 84112, USA.
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221
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Cheikhyoussef A, Pogori N, Chen W, Zhang H. Antimicrobial proteinaceous compounds obtained from bifidobacteria: From production to their application. Int J Food Microbiol 2008; 125:215-22. [DOI: 10.1016/j.ijfoodmicro.2008.03.012] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2007] [Revised: 03/05/2008] [Accepted: 03/24/2008] [Indexed: 01/16/2023]
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222
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SAIJONMAA‐KOULUMIES LEENAE, LLOYD DAVIDH. Carriage of Bacteria Antagonistic Towards
Staphylococcus intermedius
on Canine Skin and Mucosal Surfaces. Vet Dermatol 2008; 6:187-194. [DOI: 10.1111/j.1365-3164.1995.tb00064.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - DAVID H. LLOYD
- Dermatology Unit, Royal Veterinary College, Hawkshead Lane, North Mymms, Hertfordshire, U.K
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223
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Sparo M, Nuñez G, Castro M, Calcagno M, García Allende M, Ceci M, Najle R, Manghi M. Characteristics of an environmental strain, Enterococcus faecalis CECT7121, and its effects as additive on craft dry-fermented sausages. Food Microbiol 2008; 25:607-15. [DOI: 10.1016/j.fm.2008.01.008] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2007] [Revised: 01/02/2008] [Accepted: 01/22/2008] [Indexed: 10/22/2022]
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224
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Settanni L, Valmorri S, Suzzi G, Corsetti A. The role of environmental factors and medium composition on bacteriocin-like inhibitory substances (BLIS) production by Enterococcus mundtii strains. Food Microbiol 2008; 25:722-8. [PMID: 18541172 DOI: 10.1016/j.fm.2008.01.011] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2007] [Revised: 01/24/2008] [Accepted: 01/27/2008] [Indexed: 11/18/2022]
Abstract
Bacteriocin-like inhibitory substances (BLIS)-producers Enterococcus mundtii WGWT1-1A, WGW11.2, WGJ20.1, WGJ40.2 and WGK53 from raw material origin were subjected to a study for the characterization of antimicrobial compound production under several growth conditions, including different cultivation media, growth temperatures, pHs, different concentrations and sources of nitrogen compounds, carbohydrates and other nutritional factors, and in the presence of different percentages of ethanol and NaCl. The five E. mundtii strains showed different behaviors. However, in all cases, MRS and sour dough bacteria (SDB) were found as the optimal media for BLIS production. In general, the higher BLIS production was observed with pH in the range 6.0-8.0 and, except 45 degrees C, the temperature did not show a defining effect. Low or no BLIS activity was detected after growth without nitrogen sources and carbohydrates. Absence of Tween 80, triammoniun citrate, K2HPO4, MgSO4 and MnSO4 did not affect BLIS activity levels. Except for a strain (WGWT1-1A), ethanol did not play a negative role in BLIS expression, while NaCl determined decrease of BLIS activity, proportional with concentration. The above strains did not contain plasmids, hence, BLIS expression is encoded by chromosomal DNA.
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Affiliation(s)
- Luca Settanni
- Dipartimento di Scienze degli Alimenti, Sezione di Microbiologia Agro-Alimentare ed Ambientale, Università degli Studi di Teramo, V. C.R. Lerici 1, 64023 Mosciano Sant'Angelo (TE), Italy
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225
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Sabia C, de Niederhäusern S, Guerrieri E, Messi P, Anacarso I, Manicardi G, Bondi M. Detection of bacteriocin production and virulence traits in vancomycin-resistant enterococci of different sources. J Appl Microbiol 2008; 104:970-9. [DOI: 10.1111/j.1365-2672.2007.03612.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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226
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Hugas M, Garriga M, Aymerich M, Monfort J. Inhibition ofListeriain dry fermented sausages by the bacteriocinogenicLactobacillus sakeCTC494. ACTA ACUST UNITED AC 2008. [DOI: 10.1111/j.1365-2672.1995.tb03144.x] [Citation(s) in RCA: 120] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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227
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Samelis J, Roller S, Metaxopoulos J. Sakacin B, a bacteriocin produced by Lactobacillus sake isolated from Greek dry fermented sausages. ACTA ACUST UNITED AC 2008. [DOI: 10.1111/j.1365-2672.1994.tb01105.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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228
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229
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Bhunia A, Johnson M, Ray B, Kalchayanand N. Mode of action of pediocin AcH fromPediococcus acidilacticiH on sensitive bacterial strains. ACTA ACUST UNITED AC 2008. [DOI: 10.1111/j.1365-2672.1991.tb03782.x] [Citation(s) in RCA: 191] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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230
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Millière J, Michel M, Mathieu F, Lefebvre G. Presence ofCarnobacteriumspp. in French surface mould-ripened soft-cheese. ACTA ACUST UNITED AC 2008. [DOI: 10.1111/j.1365-2672.1994.tb01626.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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231
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Schved F, Lindner P, Juven B. Interaction of the bacteriocin pediocin SJ-1 with the cytoplasmic membrane of sensitive bacterial cells as detected by ANS fluorescence. ACTA ACUST UNITED AC 2008. [DOI: 10.1111/j.1365-2672.1994.tb04411.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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232
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Optimization of the production and purification processes of carnobacteriocins Cbn BM1 and Cbn B2 from Carnobacterium maltaromaticum CP5 by heterologous expression in Escherichia coli. J Microbiol Methods 2008; 73:41-8. [PMID: 18316133 DOI: 10.1016/j.mimet.2008.01.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2007] [Revised: 01/08/2008] [Accepted: 01/18/2008] [Indexed: 11/23/2022]
Abstract
An optimization of the production and purification processes of carnobacteriocins Cbn BM1 and Cbn B2 from Carnobacterium maltaromaticum CP5, by heterologous expression in Escherichia coli is described. The genes encoding mature bacteriocin were cloned into an E. coli expression system and expressed as a fusion protein with a thermostable thioredoxin. Recombinant E. coli were cultivated following a fed-batch fermentation process with pH, temperature and oxygenation regulation. The overexpression of the fusion proteins was improved by replacing IPTG by lactose. The fusion proteins were purified by thermal coagulation followed by affinity chromatography. The thioredoxin fusion protein was removed by using CNBr instead of enterokinase and the carnobacteriocins were recovered by reverse-phase chromatography. These optimizations led us to produce up to 320 mg of pure protein per liter of culture, which is four to ten fold higher than what is described for other heterologous expression systems.
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233
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Purification and characterisation of bacteriocins produced by Enterococcus faecium from Tunisian rigouta cheese. Food Control 2008. [DOI: 10.1016/j.foodcont.2007.03.003] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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234
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235
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Settanni L, Corsetti A. Application of bacteriocins in vegetable food biopreservation. Int J Food Microbiol 2008; 121:123-38. [DOI: 10.1016/j.ijfoodmicro.2007.09.001] [Citation(s) in RCA: 285] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2007] [Revised: 08/15/2007] [Accepted: 09/03/2007] [Indexed: 11/25/2022]
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236
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Marcos B, Jofré A, Aymerich T, Monfort JM, Garriga M. Combined effect of natural antimicrobials and high pressure processing to prevent Listeria monocytogenes growth after a cold chain break during storage of cooked ham. Food Control 2008. [DOI: 10.1016/j.foodcont.2007.02.005] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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237
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Wirawan RE, Swanson KM, Kleffmann T, Jack RW, Tagg JR. Uberolysin: a novel cyclic bacteriocin produced by Streptococcus uberis. MICROBIOLOGY-SGM 2007; 153:1619-1630. [PMID: 17464077 DOI: 10.1099/mic.0.2006/005967-0] [Citation(s) in RCA: 81] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Streptococcus uberis is commonly found in the environment and in association with various bovine body sites and is a major cause of bovine mastitis. Moreover, S. uberis is known to produce a variety of bacteriocin-like inhibitory substances, antimicrobial agents that generally inhibit closely related bacterial species. In this respect, S. uberis strain 42 has previously been shown to produce a novel nisin variant named nisin U. This paper reports that, in addition to nisin U, S. uberis strain 42 produces a second bacteriocin that induces the lysis of metabolically active, susceptible target bacteria and which has therefore been named uberolysin. Isolation of the native active antimicrobial agent revealed that uberolysin is a 7048 Da peptide that is refractory to sequence analysis by Edman degradation. Transposon mutagenesis was used to generate a uberolysin-negative mutant of S. uberis 42 and sequencing of DNA flanking the insertion site revealed, in addition to the structural gene (ublA), several open reading frames likely to be involved in post-translational modification, transport and producer self-protection (immunity), and possibly in regulation of the biosynthetic gene cluster. In addition, a pair of direct repeats that may be involved in bacteriocin acquisition were identified; indeed, ublA could be identified in 18 % of tested S. uberis strains. Enzymic hydrolysis of uberolysin was used to confirm that ublA does indeed encode the precursor of uberolysin, that an unusually short leader sequence of only six amino acids is cleaved during processing of the mature peptide and that uberolysin is post-translationally covalently modified to form a head-to-tail monocycle. Thus, uberolysin is a unique cyclic bacteriocin, belonging to the same family of bacteriocins as enterocin AS-48 and circularin A.
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Affiliation(s)
- Ruth E Wirawan
- Department of Microbiology and Immunology, Otago School of Medical Sciences, University of Otago, PO Box 56, Dunedin, New Zealand
| | - Kara M Swanson
- Department of Microbiology and Immunology, Otago School of Medical Sciences, University of Otago, PO Box 56, Dunedin, New Zealand
| | - Torsten Kleffmann
- Centre for Protein Research (Department of Biochemistry), Otago School of Medical Sciences, University of Otago, PO Box 56, Dunedin, New Zealand
| | - Ralph W Jack
- Department of Microbiology and Immunology, Otago School of Medical Sciences, University of Otago, PO Box 56, Dunedin, New Zealand
| | - John R Tagg
- Department of Microbiology and Immunology, Otago School of Medical Sciences, University of Otago, PO Box 56, Dunedin, New Zealand
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238
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Jofré A, Garriga M, Aymerich T. Inhibition of Listeria monocytogenes in cooked ham through active packaging with natural antimicrobials and high-pressure processing. J Food Prot 2007; 70:2498-502. [PMID: 18044426 DOI: 10.4315/0362-028x-70.11.2498] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Enterocins A and B and sakacin K at 200 and 2,000 activity units (AU)/cm2, nisin at 200 AU/cm2, 1.8% potassium lactate, and a combination of 200 AU/cm2 of nisin and 1.8% lactate were incorporated into interleavers, and their effectiveness against Listeria monocytogenes spiked in sliced, cooked ham was evaluated. Antimicrobial-packaged cooked ham was then subjected to high-pressure processing (HPP) at 400 MPa. In nonpressurized samples, nisin plus lactate-containing interleavers were the most effective, inhibiting L. monocytogenes growth for 30 days at 6 degrees C, with counts that were 1.9 log CFU/g lower than in the control after 3 months. In the other antimicrobial-containing interleavers, L. monocytogenes did not exhibit a lag phase and progressively grew to levels of about 8 log CFU/g. HPP of actively packaged ham slices reduced Listeria populations about 4 log CFU/g in all batches containing bacteriocins (i.e., nisin, sakacin, and enterocins). At the end of storage, L. monocytogenes levels in the bacteriocin-containing batches were the lowest, with counts below 1.51 log CFU/g. In contrast, HPP moderately reduced L. monocytogenes counts in the control and lactate batches, with populations gradually increasing to about 6.5 log CFU/g at the end of storage.
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Affiliation(s)
- Anna Jofré
- IRTA, Finca Camps i Armet, E-17121 Monells, Girona, Spain
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239
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Calo-Mata P, Arlindo S, Boehme K, de Miguel T, Pascoal A, Barros-Velazquez J. Current Applications and Future Trends of Lactic Acid Bacteria and their Bacteriocins for the Biopreservation of Aquatic Food Products. FOOD BIOPROCESS TECH 2007. [DOI: 10.1007/s11947-007-0021-2] [Citation(s) in RCA: 134] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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240
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Sarder MJU, Rahman MM, Ahmed S, Sultana MR, Alam MM, Rashid MM. Consequence of dam genotypes on productive and reproductive performance of dairy cows under the rural condition in Bangladesh. Pak J Biol Sci 2007; 10:3341-9. [PMID: 19090148 DOI: 10.3923/pjbs.2007.3341.3349] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The main objective of the present study was to evaluate the consequence of dam genotypes on productive and reproductive performance of different cross-bred dairy cows under field condition. A total of 313 dairy cow's information were collected from 33 Artificial Insemination (AI) Sub-centers/Points from the District AI center of greater Rajshahi district for a period from 1993 to 2002. The information of the productive and reproductive parameters were analyzed from questionnaires answered by 33 field assistant (artificial inseminator) and owner's of cow in respective of AI Sub-Center/Points as well as from reading the AI and 100% progeny collection Registers. In general, the mean birth weight, age at puberty, age at first fertile service, age at first calving, gestation length, post-partum heat period, days open, wastage day, service per conception, milk production per day, peak milk production per day, lactation length, lactation yield, dry period, weaning period and calving intervals were 18.8 kg, 27.9 month, 29.2 month, 38.7 months, 278.7 days, 139 days, 160 days, 20.3 days, 1.62, 5.13 L, 10.45 L, 282 days, 1445 L, 146 days, 10.65 months and 438 days, respectively. Dam genotype of dairy cows were divided into 5 groups according to their genetic composition. LxF, SxSL, L, LxSLxF and LxSxSL of dam genotype had significant effect on all the productive and reproductive performances of the dairy cows except on age at first calving, gestation length and weaning period. The genotypes of dam's of cows like LxF and LxSL showed a better performance under field condition at greater Rajshahi district and poor performance were recorded in L and LxSxSL of dam genotype. The experiment reflects that the LxF and LxSL genotypes of dam showed the better productive and reproductive performances of dairy cows under rural condition in Bangladesh.
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Affiliation(s)
- Md Jalal Uddin Sarder
- Department of Animal Husbandry and Veterinary Science, Faculty of Agriculture, University of Rajshahi, Rajshahi-6205, Bangladesh
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241
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Sahl HG. Gene-encoded antibiotics made in bacteria. CIBA FOUNDATION SYMPOSIUM 2007; 186:27-42; discussion 42-53. [PMID: 7768156 DOI: 10.1002/9780470514658.ch3] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Production of antimicrobial peptides and proteins is very common among bacteria and a variety of such substances has been described. In general Gram-negative bacteria produce protein bacteriocins (e.g. colicins) with narrow action spectra based on receptor-mediated activity. They produce comparatively few peptides, such as the post-translationally modified microcin B17. In contrast Gram-positive bacteria tend to produce peptide bacteriocins smaller than 10 kDa and of wider activity spectra. These show particular potential for application. They can be divided into unmodified peptides (e.g. lactococcins, lactacins, pediocins) and lanthionine-containing peptides (lantibiotics, e.g. nisin, epidermin, Pep5). The unmodified peptides are mostly hydrophobic or amphiphilic and act by disturbing the function of the cytoplasmic membrane. They are synthesized as prepeptides with a characteristic N-terminal leader peptide. In some cases genes for immunity peptides were found in close proximity to structural genes; furthermore, two-component response regulators seem to be involved in the regulation of their synthesis. The biosynthetic genes for lantibiotics are also organized in operons. Lantibiotic gene clusters include genes encoding the unique enzymes which dehydrate serine and threonine and form the characteristic thioether-bridged lanthionines. Three types of lantibiotics are currently distinguished on the basis of structural features and functional aspects: type A, which include elongated, amphiphilic, pore-forming peptides (e.g. nisin); type B, which are of globular shape and inhibit phospholipases (e.g. duramycins); and type C (e.g. actagardine) with intermediate features which act by inhibiting bacterial cell wall biosynthesis.
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Affiliation(s)
- H G Sahl
- Institut für Medizinische Mikrobiologie und Immunologie, Universität Bonn, Germany
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242
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de Carvalho AAT, Costa ED, Mantovani HC, Vanetti MCD. Effect of bovicin HC5 on growth and spore germination of Bacillus cereus and Bacillus thuringiensis isolated from spoiled mango pulp. J Appl Microbiol 2007; 102:1000-9. [PMID: 17381743 DOI: 10.1111/j.1365-2672.2006.03160.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
AIMS To use bovicin HC5 to inhibit predominant bacteria isolated from spoiled mango pulp. METHODS AND RESULTS Bovicin HC5 and nisin were added to brain heart infusion (BHI) medium (40-160 AU ml(-1)) or mango pulp (100 AU ml(-1)) and the growth of Bacillus cereus and Bacillus thuringiensis was monitored. Cultures treated with bovicin HC5 or nisin showed longer lag phases and grew slower in BHI medium. Bovicin HC5 and nisin were bactericidal and showed higher activity in mango pulp at acidic pH values. To determine the effect on spore germination and D values, mango pulp containing bovicin HC5 was inoculated with 10(6) and 10(9) spores per ml(-1), respectively, from each strain tested. Bovicin HC5 reduced the outgrowth of spores from B. cereus and B. thuringiensis, but thermal sensitivity was not affected. CONCLUSIONS Bovicin HC5 was bactericidal against B. cereus and B. thuringiensis isolated from spoiled mango pulp. SIGNIFICANCE AND IMPACT OF THE STUDY Bacillus cereus and B. thuringiensis had not been previously isolated from spoiled mango pulp and bovicin HC5 has the potential to inhibit such bacteria in fruit pulps.
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Affiliation(s)
- A A T de Carvalho
- Department of Microbiology, Viçosa Federal University, Viçosa, Minas Gerais, Brazil
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243
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Yildirim S, Konrad D, Calvez S, Drider D, Prévost H, Lacroix C. Production of recombinant bacteriocin divercin V41 by high cell density Escherichia coli batch and fed-batch cultures. Appl Microbiol Biotechnol 2007; 77:525-31. [PMID: 17882416 DOI: 10.1007/s00253-007-1188-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2007] [Revised: 08/28/2007] [Accepted: 08/28/2007] [Indexed: 10/22/2022]
Abstract
To increase the yield of heterologous production of the class II bacteriocin DvnRV41 with Escherichia coli Origami (DE3) (pLysS/pCR03), induction of bacteriocin gene expression was optimized by varying the inducer isopropyl beta-D-thiogalactopyranoside (IPTG) concentration (0-2 mM), and controlled batch and fed-batch cultures were tested on a 2-L scale. A concentration of 0.5 mM IPTG was found to be optimal for cell growth and bacteriocin production. Shake flask cultivation of E. coli Origami (DE3) (pLysS/pCR03) gave biomass and bacteriocin yields of 1.54 +/- 0.06 g cdw/l and 18 +/- 1 mg DvnRV41/l, respectively. Biomass (2.70 +/- 0.06 and 6.8 +/- 0.6 g cdw/l, respectively) and bacteriocin yields (30 and 74 mg DvnRV41 per liter, respectively) were both increased with batch and fed-batch compared to shake flask cultures. Bacteriocin yields reported in this study are among the highest published for other heterologous expression systems in shake flasks.
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Affiliation(s)
- Selcuk Yildirim
- Laboratory of Food Biotechnology, Institute of Food Science and Nutrition, ETH (Swiss Federal Institute of Technology) Zurich, LFV C20 Schmelzbergstrasse 7, CH-8092, Zurich, Switzerland
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244
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Bermúdez-Humarán LG, Rihakova J, Langella P, Demnerova K, Nazef L, Prévost H, Drider D. Antimicrobial Activity of Divercin RV41 Produced and Secreted by Lactococcus lactis. J Mol Microbiol Biotechnol 2007; 13:259-63. [PMID: 17827978 DOI: 10.1159/000104756] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Divercin V41 is a class IIa bacteriocin produced by Carnobacterium divergens V41 with a strong anti-Listeria activity. We have previously produced a recombinant form of divercin V41 (DvnRV41) in Escherichia coli strain Origami, by cloning a synthetic gene that codes for a mature divercin RV41 peptide. In this work we describe the inducible expression and secretion of DvnRV41 in the food-grade lactic acid bacterium, Lactococcus lactis. The production of DvnRV41 by recombinant L. lactis was confirmed and quantified by Western blot and ELISA assays. In addition, anti-Listeria activity of DvnRV41 was determined using an agar diffusion test. Although the levels of DvnRV41 produced by recombinant L. lactis were similar to those produced by the natural host, C. divergens V41, the specific activities were lower. In conclusion, our data show that the bacteriocin DvnRV41 is produced and secreted in an active form by L. lactis and that this approach may have important applications in the preservation of foods.
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Affiliation(s)
- Luis G Bermúdez-Humarán
- Unité d'Ecologie et de Physiologie du Système Digestif, INRA, Domaine de Vilvert, Jouy-en-Josas, France
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245
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Chang JY, Lee HJ, Chang HC. Identification of the agent from Lactobacillus plantarum KFRI464 that enhances bacteriocin production by Leuconostoc citreum GJ7. J Appl Microbiol 2007; 103:2504-15. [PMID: 17850309 DOI: 10.1111/j.1365-2672.2007.03543.x] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
AIM To provide evidence that the production of bacteriocin by lactic acid bacteria can be enhanced by the presence of a bacteriocin-sensitive strain and identify the agent that is responsible for enhancing bacteriocin production. METHODS AND RESULTS One bacteriocin-producing lactic acid bacterium was isolated from kimchi. The strain GJ7 was designated as Leuconostoc citreum GJ7 based on Gram staining, biochemical properties, and 16S rRNA gene sequencing. The isolate produced a heat- and pH-stable bacteriocin (kimchicin GJ7), which has antagonistic activity against a broad spectrum of micro-organisms. Tricine-sodium dodecyl sulfate-polyacrylamide gel electrophoresis of purified kimchicin GJ7 showed a single band of molecular weight c. 3500 Da. Cultures of Leuc. citreum GJ7 in the presence of thermally inactivated kimchicin GJ7-sensitive strains, Lactobacillus plantarum KFRI 464, Lactobacillus delbrueckii KFRI 347, or Leuconostoc mesenteroides KCTC 1628, increased bacteriocin production. This inducing factor was characterized and purified from Lact. plantarum KFRI 464, which showed the greatest enhancement of kimchicin GJ7 activity. The inducing factor was purified using a DEAE (diethyl aminoethyl)-Sephacel column and high-performance liquid chromatography, and yielded a single band of c. 6500 Da. N-terminal sequencing of the inducing factor identified 16 amino acids. The N-terminal sequence of the inducing factor was synthesized and examined for the induction of kimchicin GJ7 activity, and was found to induce activity, but at a level about 10% lower than that of the entire molecule. CONCLUSIONS The presence of a bacteriocin-sensitive strain, Lact. plantarum KFRI 464, acts as an environmental stimulus to activate the production of kimchicin GJ7 by Leuc. citreum GJ7. The inducing factor from Lact. plantarum KFRI 464 is highly homologous to the 30S ribosomal protein S16 from various micro-organisms. The N-terminal sequence of the inducing factor examined in this study is a very important sequence related to the inducing activity. Nevertheless, the inducing factor may not be part of the ribosomal protein S16 itself. SIGNIFICANCE AND IMPACT OF THE STUDY We believe that the present study is the first to identify an agent that is produced by one micro-organism and influences bacteriocin production in another. The bacteriocin-enhancing system described in this study could be effectively used to control the growth of other micro-organisms (sensitive cells) in food systems. Moreover, this enhancement of bacteriocin production can be applied usefully in industrial production of natural food preservatives.
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Affiliation(s)
- J Y Chang
- Department of Food and Nutrition, Chosun University, 375 Seosukdong, Donggu, Gwangju, Republic of Korea
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246
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Le Blay G, Lacroix C, Zihler A, Fliss I. In vitro inhibition activity of nisin A, nisin Z, pediocin PA-1 and antibiotics against common intestinal bacteria. Lett Appl Microbiol 2007; 45:252-7. [PMID: 17718835 DOI: 10.1111/j.1472-765x.2007.02178.x] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
AIMS To evaluate the sensitivity of 21 common intestinal bacteria to six antibiotics and three broad-spectrum bacteriocins (nisins Z and A and pediocin PA-1). METHODS AND RESULTS Neutralized cell-free culture supernatants containing active bacteriocins, and antibiotics were tested with the agar diffusion test and the disc-diffusion method, respectively. The tested intestinal strains showed high sensitivity to most antibiotics except for streptomycin and oxacillin. Nisins A and Z (8 mug per well) had similar activity spectra and inhibited all Gram-positive intestinal bacteria at different levels (except Streptococcus salivarius), with bifidobacteria (except Bifidobacterium breve and Bif. catenulatum), Collinsella aerofaciens and Eubacterium biforme being the most sensitive strains, but they were not active against Gram-negative bacteria. Surprisingly, none of the tested strains were inhibited by pediocin PA-1 (16 mug per well). CONCLUSION Pediocin PA-1 which is very active against Listeria spp. and other food pathogens did not inhibit major intestinal species in the human intestine in contrast to both nisins A and Z. SIGNIFICANCE AND IMPACT OF THE STUDY Our data suggest that pediocin PA-1 has potential to inhibit Listeria within the intestinal microbiota without altering commensal bacteria.
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Affiliation(s)
- G Le Blay
- Laboratory of Food Biotechnology, Institute of Food Science and Nutrition, ETH Zurich, Zurich, Switzerland.
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247
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ASHENAFI M, BUSSE M. Growth of Staphylococcus aureus in fermenting tempeh made from various beans and its inhibition by Lactobacillus plantarum. Int J Food Sci Technol 2007. [DOI: 10.1111/j.1365-2621.1992.tb01182.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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248
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Sebei S, Zendo T, Boudabous A, Nakayama J, Sonomoto K. Characterization, N-terminal sequencing and classification of cerein MRX1, a novel bacteriocin purified from a newly isolated bacterium: Bacillus cereus MRX1. J Appl Microbiol 2007; 103:1621-31. [DOI: 10.1111/j.1365-2672.2007.03395.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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249
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Marcos B, Aymerich T, Monfort JM, Garriga M. Use of antimicrobial biodegradable packaging to control Listeria monocytogenes during storage of cooked ham. Int J Food Microbiol 2007; 120:152-8. [PMID: 17629977 DOI: 10.1016/j.ijfoodmicro.2007.06.003] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2006] [Revised: 01/10/2007] [Indexed: 11/19/2022]
Abstract
The antimicrobial effect against L. monocytogenes of biodegradable films (alginate, zein and polyvinyl alcohol) containing enterocins was investigated. Survival of the pathogen was studied by means of challenge tests performed at 6 degrees C during 8 and 29 days, for air-packed and vacuum-packed sliced cooked ham, respectively. Air packaging was tested with two concentrations of enterocins (200 and 2000 AU/cm2). Control air-packed cooked ham showed an increase of L. monocytogenes from 10(4) to 10(7) CFU/g after 8 days. By contrast, packaging with antimicrobial films effectively slowed down the pathogen's growth, leading to final counts lower than in control lots. Air-packaging with alginate films containing 2000 AU/cm2 of enterocins effectively controlled L. monocytogenes for 8 days. An increase of only 1 log unit was observed in zein and polyvinyl alcohol lots at the same enterocin concentration. Vacuum packaging with films containing enterocins (2000 AU/cm2) also delayed the growth of the pathogen. No increase from inoculated levels was observed during 15 days in antimicrobial alginate films. After 29 days of storage, the lowest counts were obtained in samples packed with zein and alginate films containing enterocins, as well as with zein control films. The most effective treatment for controlling L. monocytogenes during 6 degrees C storage was vacuum-packaging of sliced cooked ham with alginate films containing 2000 AU/cm2 of enterocins. From the results obtained it can concluded that antimicrobial packaging can improve the safety of sliced cooked ham by delaying and reducing the growth of L. monocytogenes.
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Affiliation(s)
- Begonya Marcos
- IRTA-Food Technology, Finca Camps i Armet, E-17121 Monells, Spain
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250
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González L, Sandoval H, Sacristán N, Castro J, Fresno J, Tornadijo M. Identification of lactic acid bacteria isolated from Genestoso cheese throughout ripening and study of their antimicrobial activity. Food Control 2007. [DOI: 10.1016/j.foodcont.2006.03.008] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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