Biochemical, antimicrobial and molecular characterization of a noncytotoxic bacteriocin produced by Lactobacillus plantarum ST71KS

Lactobacillus (Lb.) plantarum ST71KS was isolated from homemade goat feta cheese and identified using biochemical and molecular biology techniques. As shown by Tricine-SDS-PAGE, this lactic acid bacterium produces a bacteriocin (ST71KS) with an estimated molecular weight of 5.0 kDa. Bacteriocin ST71...

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Autores principales:	Martinez, R.C.R., Wachsman, M., Torres, N.I., LeBlanc, J.G., Todorov, S.D., Franco, B.D.G.D.M.
Formato:	JOUR
Materias:	Antimicrobial activity Bacteriocin Bacteriocin-encoding genes Cytotoxicity Lactobacillus plantarum Listeria monocytogenes bacteriocin animal article cell line Cercopithecus cheese chemistry genetics human isolation and purification metabolism microbiology pH Vero cell Animals Bacteriocins Cell Line Cercopithecus aethiops Cheese Humans Hydrogen-Ion Concentration Vero Cells Bacteria (microorganisms) Capra hircus Lactobacillus
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_07400020_v34_n2_p376_Martinez
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_07400020_v34_n2_p376_Martinez
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spelling	todo:paper_07400020_v34_n2_p376_Martinez2023-10-03T15:38:06Z Biochemical, antimicrobial and molecular characterization of a noncytotoxic bacteriocin produced by Lactobacillus plantarum ST71KS Martinez, R.C.R. Wachsman, M. Torres, N.I. LeBlanc, J.G. Todorov, S.D. Franco, B.D.G.D.M. Antimicrobial activity Bacteriocin Bacteriocin-encoding genes Cytotoxicity Lactobacillus plantarum Listeria monocytogenes bacteriocin animal article cell line Cercopithecus cheese chemistry genetics human isolation and purification Lactobacillus plantarum metabolism microbiology pH Vero cell Animals Bacteriocins Cell Line Cercopithecus aethiops Cheese Humans Hydrogen-Ion Concentration Lactobacillus plantarum Vero Cells Bacteria (microorganisms) Capra hircus Lactobacillus Lactobacillus plantarum Listeria monocytogenes Lactobacillus (Lb.) plantarum ST71KS was isolated from homemade goat feta cheese and identified using biochemical and molecular biology techniques. As shown by Tricine-SDS-PAGE, this lactic acid bacterium produces a bacteriocin (ST71KS) with an estimated molecular weight of 5.0 kDa. Bacteriocin ST71KS was not affected by the presence of α-amylase, catalase and remained stable in a wide range of pH and after treatment with Triton X-100, Triton X-114, Tween 20, Tween 80, NaCl, SDS, urea and EDTA. This bacteriocin also remained active after being heated at 100 °C for 2 h and even after 20 min at 121 °C; however, it was inactivated by proteolitic enzymes. Production of bacteriocin ST71KS reached 6400 AU/mL during stationary growth phase of Lb. plantarum cultivated in MRS at 30 °C and 37 °C. Bacteriocin ST71KS displayed a bactericidal effect against Listeria monocytogenes strains 603 and 607 and did not adsorb to the producer cells. Lb. plantarum ST71KS harbors two bacteriocin genes with homology to plantaricin S and pediocin PA-1. These characteristics indicate that bacteriocin ST71KS is a class IIa bacteriocin. The peptide presented no toxic effect when tested in vitro with kidney Vero cells, indicating safe technological application to control L. monocytogenes in foods. © 2013 Elsevier Ltd. Fil:Wachsman, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Torres, N.I. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_07400020_v34_n2_p376_Martinez
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Antimicrobial activity Bacteriocin Bacteriocin-encoding genes Cytotoxicity Lactobacillus plantarum Listeria monocytogenes bacteriocin animal article cell line Cercopithecus cheese chemistry genetics human isolation and purification Lactobacillus plantarum metabolism microbiology pH Vero cell Animals Bacteriocins Cell Line Cercopithecus aethiops Cheese Humans Hydrogen-Ion Concentration Lactobacillus plantarum Vero Cells Bacteria (microorganisms) Capra hircus Lactobacillus Lactobacillus plantarum Listeria monocytogenes
spellingShingle	Antimicrobial activity Bacteriocin Bacteriocin-encoding genes Cytotoxicity Lactobacillus plantarum Listeria monocytogenes bacteriocin animal article cell line Cercopithecus cheese chemistry genetics human isolation and purification Lactobacillus plantarum metabolism microbiology pH Vero cell Animals Bacteriocins Cell Line Cercopithecus aethiops Cheese Humans Hydrogen-Ion Concentration Lactobacillus plantarum Vero Cells Bacteria (microorganisms) Capra hircus Lactobacillus Lactobacillus plantarum Listeria monocytogenes Martinez, R.C.R. Wachsman, M. Torres, N.I. LeBlanc, J.G. Todorov, S.D. Franco, B.D.G.D.M. Biochemical, antimicrobial and molecular characterization of a noncytotoxic bacteriocin produced by Lactobacillus plantarum ST71KS
topic_facet	Antimicrobial activity Bacteriocin Bacteriocin-encoding genes Cytotoxicity Lactobacillus plantarum Listeria monocytogenes bacteriocin animal article cell line Cercopithecus cheese chemistry genetics human isolation and purification Lactobacillus plantarum metabolism microbiology pH Vero cell Animals Bacteriocins Cell Line Cercopithecus aethiops Cheese Humans Hydrogen-Ion Concentration Lactobacillus plantarum Vero Cells Bacteria (microorganisms) Capra hircus Lactobacillus Lactobacillus plantarum Listeria monocytogenes
description	Lactobacillus (Lb.) plantarum ST71KS was isolated from homemade goat feta cheese and identified using biochemical and molecular biology techniques. As shown by Tricine-SDS-PAGE, this lactic acid bacterium produces a bacteriocin (ST71KS) with an estimated molecular weight of 5.0 kDa. Bacteriocin ST71KS was not affected by the presence of α-amylase, catalase and remained stable in a wide range of pH and after treatment with Triton X-100, Triton X-114, Tween 20, Tween 80, NaCl, SDS, urea and EDTA. This bacteriocin also remained active after being heated at 100 °C for 2 h and even after 20 min at 121 °C; however, it was inactivated by proteolitic enzymes. Production of bacteriocin ST71KS reached 6400 AU/mL during stationary growth phase of Lb. plantarum cultivated in MRS at 30 °C and 37 °C. Bacteriocin ST71KS displayed a bactericidal effect against Listeria monocytogenes strains 603 and 607 and did not adsorb to the producer cells. Lb. plantarum ST71KS harbors two bacteriocin genes with homology to plantaricin S and pediocin PA-1. These characteristics indicate that bacteriocin ST71KS is a class IIa bacteriocin. The peptide presented no toxic effect when tested in vitro with kidney Vero cells, indicating safe technological application to control L. monocytogenes in foods. © 2013 Elsevier Ltd.
format	JOUR
author	Martinez, R.C.R. Wachsman, M. Torres, N.I. LeBlanc, J.G. Todorov, S.D. Franco, B.D.G.D.M.
author_facet	Martinez, R.C.R. Wachsman, M. Torres, N.I. LeBlanc, J.G. Todorov, S.D. Franco, B.D.G.D.M.
author_sort	Martinez, R.C.R.
title	Biochemical, antimicrobial and molecular characterization of a noncytotoxic bacteriocin produced by Lactobacillus plantarum ST71KS
title_short	Biochemical, antimicrobial and molecular characterization of a noncytotoxic bacteriocin produced by Lactobacillus plantarum ST71KS
title_full	Biochemical, antimicrobial and molecular characterization of a noncytotoxic bacteriocin produced by Lactobacillus plantarum ST71KS
title_fullStr	Biochemical, antimicrobial and molecular characterization of a noncytotoxic bacteriocin produced by Lactobacillus plantarum ST71KS
title_full_unstemmed	Biochemical, antimicrobial and molecular characterization of a noncytotoxic bacteriocin produced by Lactobacillus plantarum ST71KS
title_sort	biochemical, antimicrobial and molecular characterization of a noncytotoxic bacteriocin produced by lactobacillus plantarum st71ks
url	http://hdl.handle.net/20.500.12110/paper_07400020_v34_n2_p376_Martinez
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Biochemical, antimicrobial and molecular characterization of a noncytotoxic bacteriocin produced by Lactobacillus plantarum ST71KS

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