Effects of Mannosylerythritol-Lipids-B on Cutibacterium acnes ATCC 6919
Indian Journal of Microbiology(2024)
Abstract
Mannosylerythritol-lipids-B (MEL-B) are microbial-produced glycolipids with skincare properties, notably moisturizing, antimelanogenic, antimicrobial, and antiaging. Thus, there is a potential use of MEL-B in a formulation for treating acne-prone skin. This study investigated the antimicrobial effect of MEL-B against the Gram-positive bacteria Cutibacterium acnes . The broth macro dilution method was used to evaluate the growth of C. acnes (3–4 CFU/mL), in the absence (positive control) or presence of MEL-B (128, 192, 256, and 512 μg/mL). Additionally, the leakage of genetic materials was used to determine the potential drug-induced membrane disruption of glycolipids. The amount of DNA and RNA release was quantified spectrophotometrically at 260 nm. Macro dilution technique and membrane integrity experiments showed that MEL-B does not have antimicrobial activity against C. acnes. Indeed, MEL-B assisted C. acnes growth. Ultimately, MEL-B has been reported as a remarkably active compound for skincare formulations; however, preliminarily, it should be avoided for acneic skin.
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Key words
Acne vulgaris,Skin microbiome,Antimicrobial,Glycolipid
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