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Biosurfactant production by Pseudomonas aeruginosa GS3 from molasses
Author(s) -
Patel R.M.,
Desai A.J.
Publication year - 1997
Publication title -
letters in applied microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.698
H-Index - 110
eISSN - 1472-765X
pISSN - 0266-8254
DOI - 10.1046/j.1472-765x.1997.00172.x
Subject(s) - rhamnolipid , pseudomonas aeruginosa , chemistry , food science , rhamnose , carbon source , bacteria , microbiology and biotechnology , biology , biochemistry , genetics , galactose
Pseudomonas aeruginosa GS3 produces rhamnolipid biosurfactants during growth on molasses and cornsteep liquor as the primary carbon and nitrogen sources, respectively. After 96 h of growth the culture supernatant fluid had a rhamnose concentration of 0·24 g l −1 and reduced the interfacial tension against crude oil from 21 m N m −1 to 0·47 m N m −1 . The rhamnolipids were able to form stable emulsions with n‐alkanes, aromatics, crude oil and olive oil. These studies indicate that renewable, relatively inexpensive and easily available resources can be used for important biotechnological processes.