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Colloids and Surfaces B: Biointerfaces, 2021
Recently, increased attention has been focused on antibacterial photodynamic therapy (APDT) to treat multidrug-resistant bacterial infection due to the antibiotic abuse. Methylene blue has been used as a kind of efficient and cheap commercial photosensitizer in APDT.
Juan Zhao +6 more
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Recently, increased attention has been focused on antibacterial photodynamic therapy (APDT) to treat multidrug-resistant bacterial infection due to the antibiotic abuse. Methylene blue has been used as a kind of efficient and cheap commercial photosensitizer in APDT.
Juan Zhao +6 more
openaire +2 more sources
Surfactin Activity Depends on the Membrane Dipole Potential
Langmuir, 2010The effect of dipole modifying agents phloretin and RH 421 on the membrane conductance induced by surfactin, a lipopeptide antibiotic from Bacillus subtilis, was studied. Surfactin added on both sides of a bilayer formed from diphytanoylphosphocholine in 1 M KCl (pH 6.5) leads to the formation of voltage-independent channels of different conductance ...
Olga S, Ostroumova +3 more
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Surfactin: A Biosurfactant Against Breast Cancer
2021Surfactin is a biosurfactant produced by different species of the genus Bacillus. It poses anticancer activity against breast and other different cancers. Surfactin suppresses cancerous growth by cell cycle arrest and programed cell death and also captures metastasis. As a result of the fantastic impact, surfactin is widely studied. Here the synthesis,
Pimpi Sahu +3 more
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Characterization of the surfactin synthetase multi-enzyme complex
Biochimica et Biophysica Acta (BBA) - Protein Structure and Molecular Enzymology, 1994Three subunits (srfAORF1, srfAORF2 and srfAORF3) of the Bacillus subtilis surfactin synthetase multi-enzyme complex have been identified by SDS-PAGE and Western blot analyses. In accordance with the sequence analysis of the surfactin (srfA) operon, the protein subunits have a molecular mass of 402,000 Da, 401,000 Da and 144,000 Da, respectively ...
G, Galli +6 more
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Surfactin: Biosynthesis, Genetics and Potential Applications
2010Even after forty years of its discovery by Arima et al, surfactin, a potent lipopeptide biosurfactant, still attracts attention and fancy of the applied microbiologists and biotechnologists worldwide, mainly due to its versatile bioactive properties and potential industrial implications.
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Lichenysin: A More Efficient Cation Chelator Than Surfactin
Applied Biochemistry and Biotechnology, 2001The lipopeptide lichenysin (cyclo-[L-Gln1-->D-Leu2-->L-Leu3-->L-Val4--> L-Asp5-->D-Leu6-->L-Ile7-beta-OH fatty acid]) produced by Bacillus licheniformis structurally resembles surfactin from Bacillus subtilis. The main difference is the presence of a glutaminyl residue in position 1 of the peptide sequence in place of glutamic acid in surfactin.
I, Grangemard +3 more
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Surfactin and Other Lipopeptides from Bacillus spp.
2010Isolated during 1950s and 1960s, the group of lipopeptides from Bacillus spp. gather more than 30 different peptides linked to various fatty acid chains. More than a 100 different compounds can so be described. In this chapter, they are classified into four main families: the surfactins, the iturins, the fengycins or plipastatins and the kurstakins ...
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Biochimie, 1992
Iturin A and surfactin are two lipopeptides extracted from a same strain of Bacillus subtilis. Iturin A possesses antibiotic and antifungal activities and surfactin is a strong surfactant. The presence of surfactin, at a concentration at which, alone, it is inactive, increases to a very large extent the haemolysis percent induced by iturin A.
R, Maget-Dana +3 more
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Iturin A and surfactin are two lipopeptides extracted from a same strain of Bacillus subtilis. Iturin A possesses antibiotic and antifungal activities and surfactin is a strong surfactant. The presence of surfactin, at a concentration at which, alone, it is inactive, increases to a very large extent the haemolysis percent induced by iturin A.
R, Maget-Dana +3 more
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Mn2 + improves surfactin production by Bacillus subtilis
Biotechnology Letters, 2002Surfactin productivity by Bacillus subtilis was increased from 0.33 g l−1 to 2.6 g l−1 by adding 0.01 mM Mn2+ to a defined glucose medium. The final yield exceeded that of most reported values for genetically improved strains.
Yu-Hong Wei, I-Ming Chu
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Rhamnolipid and surfactin inhibit Listeria monocytogenes adhesion
Food Research International, 2011The aim of this study was to assess the potential use of biosurfactants in inhibiting the Listeria monocytogenes strains adhesion to polystyrene surfaces. Surfactin and rhamnolipids were used. The adhesion profiles of 15 strains showed that most of these bacteria can be classified as moderate to strongly adherent.
Lívia Vieira de Araujo +5 more
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