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Antimicrobial effects of marine algal extracts and cyanobacterial pure compounds against five foodborne pathogens

Dussault, Dominic; Vu, Khanh Dang; Vansach, Tifanie; Horgen, F. David; Lacroix, Monique (2016). Antimicrobial effects of marine algal extracts and cyanobacterial pure compounds against five foodborne pathogens Food Chemistry , vol. 199 . p. 114-118. DOI: 10.1016/j.foodchem.2015.11.119.

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Résumé

The marine environment is a proven source of structurally complex and biologically active compounds. In this study, the antimicrobial effects of a small collection of marine-derived extracts and isolates, were evaluated against 5 foodborne pathogens using a broth dilution assay. Results demonstrated that algal extracts from Padina and Ulva species and cyanobacterial compounds antillatoxin B, laxaphycins A, B and B3, isomalyngamide A, and malyngamides C, I and J showed antimicrobial activity against Gram positive foodborne pathogens (Listeria monocytogenes, Bacillus cereus and Staphylococcus aureus) at low concentrations (≤500 μg/ml). None of the algal extracts or cyanobacterial isolates had antibacterial activity against Gram negative bacteria (Escherichia coli and Salmonella enterica serovar Typhimurium).

Type de document: Article
Mots-clés libres: Antimicrobial; Cyanobacteria; Foodborne pathogens; Marine algae; Algae; Bacillus cereus; Bacteria; Bacteriology; Bioactivity Escherichia coli Listeria Microorganisms Pathogens Salmonella Anti-bacterial activity Anti-microbial activity Biologically active compounds Food-borne pathogens Salmonella enterica serovar Typhimurium Food microbiology algal extract antibiotic agent antillatoxin B isomalyngamide A laxaphycin A laxaphycin B laxaphycin B3 malyngamide C malyngamide I malyngamide J marine toxin unclassified drug alga antibacterial activity antimicrobial activity Article bacterial strain bacterium isolate broth dilution controlled study cyanobacterium food Gram negative bacterium Listeria monocytogenes marine environment microalga minimum inhibitory concentration nonhuman Padina Staphylococcus aureus Ulva
Centre: Centre INRS-Institut Armand Frappier
Date de dépôt: 12 oct. 2017 14:12
Dernière modification: 12 oct. 2017 14:12
URI: http://espace.inrs.ca/id/eprint/4600

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