Antimicrobial Activity of a Phage Mixture and a Lactic Acid Bacterium against <i>Staphylococcus</i> <i>aureus</i> from Bovine Mastitis

The antimicrobial activity of a phage mixture and a lactic acid bacterium against <i>Staphylococcus aureus</i> isolates from bovine origin was investigated in vitro with regard to possible applications in the therapy of udder inflammation (mastitis) caused by bacterial infections. The &l...

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Main Authors: Isabel Titze, Volker Krömker
Format: Article
Language:English
Published: MDPI AG 2020-03-01
Series:Veterinary Sciences
Subjects:
Online Access:https://www.mdpi.com/2306-7381/7/1/31
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author Isabel Titze
Volker Krömker
author_facet Isabel Titze
Volker Krömker
author_sort Isabel Titze
collection DOAJ
description The antimicrobial activity of a phage mixture and a lactic acid bacterium against <i>Staphylococcus aureus</i> isolates from bovine origin was investigated in vitro with regard to possible applications in the therapy of udder inflammation (mastitis) caused by bacterial infections. The <i>S. aureus</i> isolates used for inoculation derived from quarter foremilk samples of mastitis cases. For the examination of the antimicrobial activity, the reduction of the <i>S. aureus</i> germ density was determined [log<sub>10</sub> cfu/mL]. The phage mixture consisted of the three obligatory lytic and <i>S. aureus</i>-specific phages STA1.ST29, EB1.ST11 and EB1.ST27 (1:1:1). The selected <i>Lactobacillus plantarum</i> strain with proven antimicrobial properties and the phage mixture were tested against <i>S. aureus</i> in milk, both alone and in combination. The application of the lactic acid bacterium showed only a low reduction ability for a 24 h incubation period. The bacteriophage mixture as well as its combination with the lactic acid bacterium showed high antimicrobial activity against <i>S. aureus</i> for a 24 h incubation period at 37 &#176;C, with only the phage mixture showing significance.
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spelling doaj.art-96bc0618421049e09e609b610dfb31792022-12-21T23:34:53ZengMDPI AGVeterinary Sciences2306-73812020-03-01713110.3390/vetsci7010031vetsci7010031Antimicrobial Activity of a Phage Mixture and a Lactic Acid Bacterium against <i>Staphylococcus</i> <i>aureus</i> from Bovine MastitisIsabel Titze0Volker Krömker1Department of Bioprocess Engineering and Microbiology, Hannover University of Applied Sciences and Arts, D-30453 Hannover, GermanyDepartment of Bioprocess Engineering and Microbiology, Hannover University of Applied Sciences and Arts, D-30453 Hannover, GermanyThe antimicrobial activity of a phage mixture and a lactic acid bacterium against <i>Staphylococcus aureus</i> isolates from bovine origin was investigated in vitro with regard to possible applications in the therapy of udder inflammation (mastitis) caused by bacterial infections. The <i>S. aureus</i> isolates used for inoculation derived from quarter foremilk samples of mastitis cases. For the examination of the antimicrobial activity, the reduction of the <i>S. aureus</i> germ density was determined [log<sub>10</sub> cfu/mL]. The phage mixture consisted of the three obligatory lytic and <i>S. aureus</i>-specific phages STA1.ST29, EB1.ST11 and EB1.ST27 (1:1:1). The selected <i>Lactobacillus plantarum</i> strain with proven antimicrobial properties and the phage mixture were tested against <i>S. aureus</i> in milk, both alone and in combination. The application of the lactic acid bacterium showed only a low reduction ability for a 24 h incubation period. The bacteriophage mixture as well as its combination with the lactic acid bacterium showed high antimicrobial activity against <i>S. aureus</i> for a 24 h incubation period at 37 &#176;C, with only the phage mixture showing significance.https://www.mdpi.com/2306-7381/7/1/31<i>staphylococcus aureus</i>bacteriophage mixturephage therapylytic phagelactic acid bacteriumdairybovine mastitis
spellingShingle Isabel Titze
Volker Krömker
Antimicrobial Activity of a Phage Mixture and a Lactic Acid Bacterium against <i>Staphylococcus</i> <i>aureus</i> from Bovine Mastitis
Veterinary Sciences
<i>staphylococcus aureus</i>
bacteriophage mixture
phage therapy
lytic phage
lactic acid bacterium
dairy
bovine mastitis
title Antimicrobial Activity of a Phage Mixture and a Lactic Acid Bacterium against <i>Staphylococcus</i> <i>aureus</i> from Bovine Mastitis
title_full Antimicrobial Activity of a Phage Mixture and a Lactic Acid Bacterium against <i>Staphylococcus</i> <i>aureus</i> from Bovine Mastitis
title_fullStr Antimicrobial Activity of a Phage Mixture and a Lactic Acid Bacterium against <i>Staphylococcus</i> <i>aureus</i> from Bovine Mastitis
title_full_unstemmed Antimicrobial Activity of a Phage Mixture and a Lactic Acid Bacterium against <i>Staphylococcus</i> <i>aureus</i> from Bovine Mastitis
title_short Antimicrobial Activity of a Phage Mixture and a Lactic Acid Bacterium against <i>Staphylococcus</i> <i>aureus</i> from Bovine Mastitis
title_sort antimicrobial activity of a phage mixture and a lactic acid bacterium against i staphylococcus i i aureus i from bovine mastitis
topic <i>staphylococcus aureus</i>
bacteriophage mixture
phage therapy
lytic phage
lactic acid bacterium
dairy
bovine mastitis
url https://www.mdpi.com/2306-7381/7/1/31
work_keys_str_mv AT isabeltitze antimicrobialactivityofaphagemixtureandalacticacidbacteriumagainstistaphylococcusiiaureusifrombovinemastitis
AT volkerkromker antimicrobialactivityofaphagemixtureandalacticacidbacteriumagainstistaphylococcusiiaureusifrombovinemastitis