Results 171 to 180 of about 7,853 (199)

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.
openaire   +3 more sources

Surfactin variants for intra-intestinal delivery of insulin

European Journal of Pharmaceutics and Biopharmaceutics, 2017
Surfactin is a Bacillus-produced natural lipopeptide, which can overcome the epithelial cell barriers for orally delivering insulin, but its ability to promote uptake of insulin by the intestine need to be further improved for a higher oral bioavailability.
Li, Zhang, Xiaoying, Xing, Jia, Ding, Xiuyun, Zhao, Gaofu, Qi   +4 more
openaire   +2 more sources

Isolation of a surfactin-producing strain of Bacillus subtilis and evaluation of the probiotic potential and antioxidant activity of surfactin from fermented soybean meal.

The Journal of the Science of Food and Agriculture
BACKGROUND Surfactin, usually produced by microbial metabolism, has many advantages including low toxicity, high biodegradability, and stability at extreme pH levels and temperatures, making it suitable for industry.
Chunhua Dai, Zhenzhen Shu, Chunfang Ma, Pengfei Yan, Liurong Huang, Ronghai He, Haile Ma   +6 more
semanticscholar   +1 more source

Surfactin-methylene blue complex under LED illumination for antibacterial photodynamic therapy: Enhanced methylene blue transcellular accumulation assisted by surfactin

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, Lixian Xu, Hao Zhang, Yuhong Zhuo, Yanan Weng, Shuang Li, Dinghua Yu   +6 more
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Surfactin from Bacillus subtilis enhances immune response and contributes to the maintenance of intestinal microbial homeostasis

Microbiology spectrum
Surfactin, a lipopeptide biosurfactant produced by Bacillus spp., has emerged as a promising bioactive compound due to its potent inhibitory effects on bacterial and viral pathogens.
Junpeng Jia, Mei Fu, Wenxin Ji, Ningna Xiong, Peng Chen, Jian Lin, Qian Yang   +6 more
semanticscholar   +1 more source

Surfactin-reinforced gelatin methacrylate hydrogel accelerates diabetic wound healing by regulating the macrophage polarization and promoting angiogenesis

, 2021
Chronic wound healing is a severe complication that threatens the life of diabetic patients because of the damaged skin microvasculature and prolonged inflammation at the wound site.
Lu Yan, K. Han, B. Pang, Han Jin, Xixi Zhao, Xiaoguang Xu, Chunmei Jiang, Ning Cui, T. Lu, Junling Shi   +9 more
semanticscholar   +1 more source

Fermentation optimization of surfactin production of Bacillus amyloliquefaciens HM618

Biotechnology and applied biochemistry, 2022
This work isolated a strain named Bacillus amyloliquefaciens HM618 from the soil, which can inhibit the growths of Botrytis cinerea, Rhizoctonia solani, and Escherichia coli DH5α. Based on the results of response surface methodology, the surfactin levels
Song Liu, Mingguo Tang, Jing-Sheng Cheng
semanticscholar   +1 more source

Surfactin Activity Depends on the Membrane Dipole Potential

Langmuir, 2010
The 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, Valery V, Malev, Maxim G, Ilin, Ludmila V, Schagina   +3 more
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Surfactin: A Biosurfactant Against Breast Cancer

2021
Surfactin 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, Kumar Kritartha Kaushik, Tingli Lu, Kai Dong   +3 more
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Characterization of the surfactin synthetase multi-enzyme complex

Biochimica et Biophysica Acta (BBA) - Protein Structure and Molecular Enzymology, 1994
Three 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, F, Rodriguez, P, Cosmina, C, Pratesi, R, Nogarotto, F, de Ferra, G, Grandi   +6 more
openaire   +2 more sources