Results 21 to 30 of about 6,671 (207)
A study on the interactions of surfactin with phospholipid vesicles
Biochimica et Biophysica Acta (BBA) - Biomembranes, 1999 Surfactin, an acidic lipopeptide produced by various strains of Bacillus subtilis, behaves as a very powerful biosurfactant and posses several other interesting biological activities. By means of differential scanning calorimetry and X-ray diffraction the effect of surfactin on the phase transition properties of bilayers composed of different ...
Grau, Alicia +3 more
openaire +3 more sources
A natural lipopeptide of surfactin for oral delivery of insulin [PDF]
Drug Delivery, 2016 Surfactin, a natural lipopeptide produced by Bacillus, is gaining attention for potentially biomedical and pharmaceutical applications. Here, surfactin was assayed for oral delivery of insulin (INS) by its ability to bind to and promote protein to penetrate through the cell membrane. Analysis by sodium dodecyl sulfate-polyacrylamide gel electrophoresis,
Li, Zhang +3 more
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Recent trends in the biochemistry of surfactin
Applied Microbiology and Biotechnology, 1999 The name surfactin refers to a bacterial cyclic lipopeptide, primarily renowned for its exceptional surfactant power since it lowers the surface tension of water from 72 mN m-1 to 27 mN m-1 at a concentration as low as 20 microM. Although surfactin was discovered about 30 years ago, there has been a revival of interest in this compound over the past ...
Peypoux, F, Bonmatin, J, Wallach, J.
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Surfactin at the Water/Air Interface and in Solution
Langmuir, 2015 The lipopeptide surfactin produced by certain strains of Bacillus subtillis is a potent biosurfactant with high amphiphilicity and a strong tendency for self-aggregation. Surfactin possesses a number of valuable biological properties such as antiviral, antibacterial, antifungal, and hemolytic activities.
Iglesias-Fernández, Javier +5 more
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Differential Impact of Ergosterol on Yeast Membranes Exposed to Membrane-Targeting Antimicrobial Compounds. [PDF]
ChembiochemBiomimetic membranes (liposomes) were prepared from yeast phospholipids with variable concentrations of ergosterol and exposed to antimicrobial compounds. Dynamic and electrophoretic light scattering measured changes in size and ζ‐potential to study their interaction with the antimicrobial compounds.
Villacres JI, Shaikhet M, Avis TJ.
europepmc +2 more sources
An Economical Bioprocess for Lipopeptide Production From Bacillus subtilis. [PDF]
MicrobiologyopenThe lipopeptide (LP) production potential of Bacillus isolates was evaluated against phytopathogenic fungi, with B. subtilis 4‐Ka‐22 identified as the top‐performing strain. Optimization of the production medium—comprising molasses, soybean meal, CaCl2, and glycerol—resulted in a 13.4‐fold increase in cell growth and over 99% cost reduction compared to
Maral-Gül D, Günay Z, Mis B, Eltem R.
europepmc +2 more sources
Enrichment and Isolation of Surfactin-degrading Bacteria
Journal of Oleo Science, 2021 A total of 100 environmental samples were investigated for their ability to degrade 1 g/L surfactin as a substrate. Among them, two enrichment cultures, which exhibited microbial growth as well as surfactin degradation, were selected and further investigated.
Habe, Hiroshi +3 more
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Journal of Food Protection, 2014 Surfactin-type lipopeptides are suspected of being implicated in the rare food poisonings caused by Bacillus species outside the Bacillus cereus cluster. In order to get information on surfactin levels in actual human foods, bacilli from three commercial samples of a Japanese traditional bean product, natto, were isolated in order to clarify their ...
Mari, Juola +3 more
openaire +2 more sources
, 2023 The emergence of antimicrobial resistance is an alarming global health concern and has stimulated the development of novel functional nanomaterials to combat multi-drug-resistant (MDR) bacteria.
Syed Zajif Hussain +25 more
core +1 more source
Liquid membrane extraction of bio-active amphiphilic substances: Recovery of surfactin [PDF]
, 2008 The interest of application of liquid membrane (pertraction) processes for recovery of biosurfactants from aqueous media was demonstrated. Transport of pure surfactin in three-liquid-phase system was studied.
Nikov, Iordan +3 more
core +1 more source