Exopolysaccharides as Antimicrobial Agents: Mechanism and Spectrum of Activity
| Autor: | Abdelmoneim K. Abdalla, Mutamed M. Ayyash, Amin N. Olaimat, Tareq M. Osaili, Anas A. Al-Nabulsi, Nagendra P. Shah, Richard Holley |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Microbiology (medical)
medicine.drug_class Microorganism Antibiotics biopolymers Review Microbiology biopreservative 03 medical and health sciences chemistry.chemical_compound Nutraceutical Immune system medicine 030304 developmental biology 0303 health sciences biology 030306 microbiology Chemistry Antimicrobial biology.organism_classification antiviral QR1-502 Lactic acid antibacterial Lysozyme Bacteria antifungal |
| Zdroj: | Frontiers in Microbiology, Vol 12 (2021) Frontiers in Microbiology |
| ISSN: | 1664-302X |
| DOI: | 10.3389/fmicb.2021.664395 |
| Popis: | Exopolysaccharides (EPSs) are metabolites synthesized and excreted by a variety of microorganisms, including lactic acid bacteria (LAB). EPS serve several biological functions such as interactions between bacteria and their environments, protection against hostile conditions including dehydration, the alleviation of the action of toxic compounds (bile salts, hydrolyzing enzymes, lysozyme, gastric, and pancreatic enzymes, metal ions, antibiotics), and stresses (changing pH, osmolarity), and evasion of the immune response and phage attack. Bacterial EPSs are considered valuable by the food, pharmaceutical, and nutraceutical industries, owing to their health-promoting benefits and rheological impacts. Numerous studies have reported the unusual antimicrobial activities of various EPS against a wide variety of pathogenic microbes (bacteria, virus, and fungi). This review aims to provide a comprehensive examination of the in vitro and in vivo antimicrobial activities of different EPSs, mainly against foodborne bacterial, fungal, and viral pathogens. The mechanism of EPS action against these pathogens as well as the methods used to measure antimicrobial activities are critically reviewed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|