ArticleThe Journal of antimicrobial chemotherapy2025
Antibacterial activity of propylene glycol against Staphylococcus aureus and Staphylococcus epidermidis in neutral and mild acidic conditions.
Article in The Journal of antimicrobial chemotherapy, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
2 citing papers in PubMed.
- Metagenomic insights into urolithin formation from rambutan rind extract by rat faecal-derived microbiome.Applied microbiology and biotechnology · 2026Article
- The mechanism of gut microbiota in septic cardiomyopathy based on the bulk transcriptome and Mendelian randomization analysis.Frontiers in immunology · 2026Article
Corrections and comments
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Authors and funding
7 authors.
Funding
Abstract
backgroundStaphylococcus aureus and Staphylococcus epidermidis normally coexist on the skin of healthy individuals. Their ratio and pathogenicity, however, change with different skin diseases and thus, the ability to control bacterial growth on the skin is important. Propylene glycol (PG), a widely used component in topical formulations, has been proved to have antimicrobial activity.
objectivesTo investigate the concentration-dependent antimicrobial properties of PG against S. aureus and S. epidermidis skin isolates in mono- and co-culture at neutral (pH 7.4) and mildly acidic (pH 5) conditions. RESULTS AND DISCUSSION: The minimum inhibitory concentration of PG was 12.5% at both pH 5 and pH 7.4 for the selected bacterial strains. The viability of S. aureus exposed to 12.5% PG was lower at pH 5 than at pH 7.4, and post-treatment regrowth of S. aureus occurred slowly at acidic pH. When both bacterial strains were incubated in media containing 12.5% PG at pH 5 for 48 hours, S. epidermidis retained significantly higher viability, while at pH 7.4, the results were opposite.
conclusionsUnder the acidic conditions of healthy skin, pathogenic S. aureus is more suppressed by 12.5% PG than commensal S. epidermidis.
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