RRC ID 75611
Author Tsukatani T, Kuroda R, Kawaguchi T.
Title Screening biofilm eradication activity of ethanol extracts from foodstuffs: potent biofilm eradication activity of glabridin, a major flavonoid from licorice (Glycyrrhiza glabra), alone and in combination with ɛ-poly-L-lysine.
Journal World J Microbiol Biotechnol
Abstract The ethanol extracts of 155 different foodstuffs containing medicinal plants were investigated for their biofilm eradication activities against pathogenic bacteria. A combined method of a colorimetric microbial viability assay based on reduction of a tetrazolium salt (WST-8) and a biofilm formation technique on the 96-pins of a microtiter plate lid was used to screen the biofilm eradication activities of foodstuffs. The ethanol extracts of licorice (Glycyrrhiza glabra) showed potent biofilm eradication activities against Streptococcus mutans, Staphylococcus aureus, and Porphyromonas gingivalis. Among the antimicrobial constituents in licorice, glabridin had the most potent eradication activities against microbial biofilms. The minimum biofilm eradication concentration of glabridin was 25-50 μg/ml. Furthermore, the combination of glabridin with ɛ-poly-L-lysine, a food additive, could result in broad biofilm eradication activities towards a wide variety of bacteria associated with infection, including Escherichia coli and Pseudomonas aeruginosa.
Volume 38(2)
Pages 24
Published 2022-1-6
DOI 10.1007/s11274-021-03206-z
PII 10.1007/s11274-021-03206-z
PMID 34989883
MeSH Anti-Bacterial Agents / pharmacology Biofilms / drug effects* Ethanol Flavonoids / pharmacology* Food Additives Glycyrrhiza / chemistry* Isoflavones / pharmacology* Microbial Sensitivity Tests Microbial Viability / drug effects Phenols / pharmacology* Plant Extracts / pharmacology* Polylysine / pharmacology* Porphyromonas gingivalis / drug effects Pseudomonas aeruginosa / drug effects Staphylococcus aureus / drug effects Streptococcus mutans / drug effects
Resource
General Microbes JCM 12257