Article (Scientific journals)
Foaming properties of lipopeptides produced by Bacillus subtilis: effect of lipid and peptide structural attributes
Razafindralambo, Hary; Popineau, Yves; Deleu, Magali et al.
1998In Journal of Agricultural and Food Chemistry, 46 (3), p. 911-916
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Keywords :
Foam; lipopeptide; surfactin; iturin A; structural attributes; foaming properties
Abstract :
[en] To study the effect of lipid and peptide structural attributes of Bacillus subtilis lipopeptides on their foaming properties, the formation, stability, and appearance of foams prepared with surfactins (C13 C15) and iturins A (C14 C17) were characterized. The density and stability of lipopeptide foams depend on both the alkyl chain hydrophobic character and peptide molecular intrinsic properties. A lipidic chain length of 14 carbon atoms provides lipopeptides with the best foaming properties in terms of foam density and liquid stability in foams. Increases in alkyl chain length above 15 carbon atoms result in a drastic decrease of iturin A foam density. With the same alkyl chain, surfactin produces denser foam whereas iturin A exhibits better foaming stability. These results demonstrate the importance of the peptide structural attributes of B. subtilis on their foaming properties.
Disciplines :
Agriculture & agronomy
Author, co-author :
Razafindralambo, Hary  ;  Université de Liège - ULiège > Chimie et bio-industries
Popineau, Yves
Deleu, Magali  ;  Université de Liège - ULiège > Chimie et bio-industries > Chimie biologique industrielle
Hbid, Choukri
Jacques, Philippe ;  Université de Liège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Bio-industries
Thonart, Philippe ;  Université de Liège - ULiège > Département des sciences de la vie > Biochimie et microbiologie industrielles - Bio-industries
Paquot, Michel ;  Université de Liège - ULiège > Chimie et bio-industries > Chimie biologique industrielle
Language :
English
Title :
Foaming properties of lipopeptides produced by Bacillus subtilis: effect of lipid and peptide structural attributes
Publication date :
1998
Journal title :
Journal of Agricultural and Food Chemistry
ISSN :
0021-8561
eISSN :
1520-5118
Publisher :
American Chemical Society, Washington, United States - District of Columbia
Volume :
46
Issue :
3
Pages :
911-916
Peer reviewed :
Peer Reviewed verified by ORBi
Name of the research project :
BIO4-CT950176; PAI
Funders :
Union Européenne = European Union - UE = EU; Belgian program of interuniversity poles of attraction
Available on ORBi :
since 14 January 2011

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