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Surface‐active properties of rhamnolipids from Pseudomonas aeruginosa GS3
Author(s) -
Patel Reena M.,
Desai Anjana J.
Publication year - 1997
Publication title -
journal of basic microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.58
H-Index - 54
eISSN - 1521-4028
pISSN - 0233-111X
DOI - 10.1002/jobm.3620370407
Subject(s) - rhamnolipid , emulsion , pulmonary surfactant , surface tension , hydrocarbon , pseudomonas aeruginosa , chemistry , petroleum , substrate (aquarium) , pseudomonadales , food science , chromatography , organic chemistry , bacteria , biology , biochemistry , ecology , genetics , physics , quantum mechanics
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.