Surface-active properties of rhamnolipids from Pseudomonas aeruginosa GS3.
Pseudomonas aeruginosa GS3 produced rhamnolipid biosurfactants during growth on carbohydrates, higher chain length n-alkanes and l-alkenes, petroleum crude oil and vegetable oils. With glucose as the substrate, maximum surfactant production (0.44 g/l) was observed during the stationary phase of growth. Partially purified rhamnolipids showed excellent surface-active properties in terms of reduction in the interfacial tension between them and a variety of hydrocarbons, hydrocarbon mixtures and vegetable oils and formation of stable emulsion.
Patel
R M
RM
Department of Microbiology and Biotechnology Centre, Faculty of Science, M.S. University of Baroda, India.
Desai
A J
AJ
D000473:Alkanes / Q000378:metabolism; D000475:Alkenes / Q000378:metabolism; D050260:Carbohydrate Metabolism; D004655:Emulsions; D005947:Glucose / Q000378:metabolism; D006017:Glycolipids / Q000737:chemistry / Q000378:metabolism*; D010578:Petroleum / Q000378:metabolism; D010938:Plant Oils / Q000378:metabolism; D011550:Pseudomonas aeruginosa / Q000254:growth & development / Q000378:metabolism*; D012210:Rhamnose / Q000737:chemistry / Q000378:metabolism*; D016196:S Phase; D013501:Surface-Active Agents / Q000302:isolation & purification / Q000378:metabolism
D000473:Alkanes; D000475:Alkenes; D004655:Emulsions; D006017:Glycolipids; D010578:Petroleum; D010938:Plant Oils; D013501:Surface-Active Agents; D005947:Glucose; D012210:Rhamnose