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פותח על ידי קלירמאש פתרונות בע"מ -
Probiotic Bifunctionality of Bacillus subtilis—Rescuing Lactic Acid Bacteria from Desiccation and Antagonizing Pathogenic Staphylococcus aureus
Year:
2019
Authors :
קימלמן, הדר
;
.
שמש, משה
;
.
Volume :
Co-Authors:

 

 

Facilitators :
From page:
0
To page:
0
(
Total pages:
1
)
Abstract:

Live probiotic bacteria obtained with food are thought to have beneficial eects on a mammalian host, including their ability to reduce intestinal colonization by pathogens. To ensure  the beneficial eects, the probiotic cells must survive processing and storage of food, its passage through the upper gastrointestinal tract (GIT), and subsequent chemical ingestion processes until they reach their target organ. However, there is considerable loss of viability of the probiotic bacteria during the drying process, in the acidic conditions of the stomach, and in the high bile concentration in the small intestine. Bacillus subtilis, a spore-forming probiotic bacterium, can eectively extracellular matrix (ECM), which is shared with other probiotic bacteria; thus, it was suggestedmaintain a favorable balance of microflora in the GIT. B. subtilis produces a protective that this ECM could potentially protect an entire community of probiotic cells against unfavorable environmental conditions. Consequently, a biofilm-based bio-coating system was developed that would enable a mutual growth of B. subtilis with dierent lactic acid bacteria (LAB) through increasing the ECM production. Results of the study demonstrate a significant increase in the survivability of the bio-coated LAB cells during the desiccation process and passage through the acidic environment. Thus, it provides evidence about the ability of B. subtilis in rescuing the desiccation-sensitive LAB, for instance, Lactobacillus rhamnosus, from complete eradication. Furthermore, this study demonstrates the antagonistic potential of the mutual probiotic system against pathogenic bacteria such as Staphylococcus aureus. The data show that the cells of B. subtilis possess robust anti-biofilm activity against S. aureus through activating the antimicrobial lipopeptide production Pathway.

Note:
Related Files :
B. subtilis
beneficial biofilm
bio-coating
extracellular matrix
pathogen elimination
probiotics
עוד תגיות
תוכן קשור
More details
DOI :
10.3390/microorganisms7100407
Article number:
0
Affiliations:
Database:
גוגל סקולר
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
44120
Last updated date:
02/03/2022 17:27
Creation date:
06/10/2019 11:11
Scientific Publication
Probiotic Bifunctionality of Bacillus subtilis—Rescuing Lactic Acid Bacteria from Desiccation and Antagonizing Pathogenic Staphylococcus aureus

 

 

Live probiotic bacteria obtained with food are thought to have beneficial eects on a mammalian host, including their ability to reduce intestinal colonization by pathogens. To ensure  the beneficial eects, the probiotic cells must survive processing and storage of food, its passage through the upper gastrointestinal tract (GIT), and subsequent chemical ingestion processes until they reach their target organ. However, there is considerable loss of viability of the probiotic bacteria during the drying process, in the acidic conditions of the stomach, and in the high bile concentration in the small intestine. Bacillus subtilis, a spore-forming probiotic bacterium, can eectively extracellular matrix (ECM), which is shared with other probiotic bacteria; thus, it was suggestedmaintain a favorable balance of microflora in the GIT. B. subtilis produces a protective that this ECM could potentially protect an entire community of probiotic cells against unfavorable environmental conditions. Consequently, a biofilm-based bio-coating system was developed that would enable a mutual growth of B. subtilis with dierent lactic acid bacteria (LAB) through increasing the ECM production. Results of the study demonstrate a significant increase in the survivability of the bio-coated LAB cells during the desiccation process and passage through the acidic environment. Thus, it provides evidence about the ability of B. subtilis in rescuing the desiccation-sensitive LAB, for instance, Lactobacillus rhamnosus, from complete eradication. Furthermore, this study demonstrates the antagonistic potential of the mutual probiotic system against pathogenic bacteria such as Staphylococcus aureus. The data show that the cells of B. subtilis possess robust anti-biofilm activity against S. aureus through activating the antimicrobial lipopeptide production Pathway.

Scientific Publication
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