نتایج جستجو برای: rhamnolipids
تعداد نتایج: 302 فیلتر نتایج به سال:
Today, efforts go towards the replacement of chemical surfactants by natural biological biosurfactants (biosurfactant), as these materials are not carcinogenic and highly compatibile with the environment. One of the main classes of biosurfactants is rhamnose containing glycolipid biosurfactant (rhamnolipids). This type of biosurfactants can be applied in many industries such as oil industry, ph...
Bio-based rhamnolipid production from waste streams is gaining momentum nowadays because of increasing market demand, huge range applications and its economic environment friendly nature. Rhamnolipid type biosurfactants are produced by microorganisms as secondary metabolites have been used to reduce surface/interfacial tension between two different phases. Biosurfactants reported be an alternat...
A Pseudomonas aeruginosa AK6U strain produced rhamnolipid biosurfactants to variable extents when grown on MgSO4 or organosulfur compounds as sulfur sources and glucose as a carbon source. Organosulfur cultures produced much higher biosurfactants amounts compared to the MgSO4 cultures. The surface tension of the growth medium was reduced from 72 mN/m to 54 and 30 mN/m in cultures containing MgS...
Classic methods of biosurfactant separation are difficult and require large amounts of organic solvents, thus generate high amounts of waste. This work presents and discusses in detail an original procedure to separate rhamnolipid from fermentation broth using high performance membrane techniques. Due to the unique properties of surface active agents, such as capability of forming aggregates ab...
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