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Foaming properties of surfactin, a lipopeptide biosurfactant from Bacillus subtilis
Author(s) -
Razafindralambo Hary,
Paquot Michel,
Baniel Alain,
Popineau Yves,
Hbid Choukri,
Jacques Philippe,
Thonart Philippe
Publication year - 1996
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02523463
Subject(s) - surfactin , lipopeptide , sodium dodecyl sulfate , bovine serum albumin , bacillus subtilis , chromatography , chemistry , sodium , chemical engineering , materials science , bacteria , organic chemistry , genetics , engineering , biology
Foaming properties of surfactin were investigated and compared to those of sodium dodecyl sulfate (SDS) and bovine serum albumin (BSA). Foams were formed by a bubbling technique. Evolution of the foam volume and the liquid in the foam was monitored with optical and conductimetric methods to characterize foam formation and stability. Excellent foaming properties of surfactin were shown by its higher ability to form and stabilize the foam at a concentration as low as 0.05 mg/mL, in comparison with SDS and BSA. Surfactin produced a foam with intermediate maximum density and stabilized the liquid in foam, as well as BSA.