Article (Scientific journals)
Influence of the production of two lipopeptides, Iturin A and Surfactin S1, on oxygen transfer during Bacillus subtilis fermentation
Hbid, Choukri; Jacques, Philippe; Razafindralambo, Hary et al.
1996In Applied Biochemistry and Biotechnology, 57-8, p. 571-579
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Keywords :
B. subtilis; Iturin; Surfactin; oxygen transfer; oxygen vecto
Abstract :
[en] Bacillus subtilis produces three types of lipopeptides: Iturins, Fengycins, and Surfactins. These amphiphilic molecules influence the volumetric oxygen transfer (K(L)a) like chemical surfactant. K(L)a values were from two- to fivefold lower when both Iturin A and Surfactin S1 were coproduced, and from 0.57- to 0.8-fold lower when only Iturin A was produced. The addition of an oxygen vector (n-Dodecane) during fermentation increased K(L)a values (7.5-fold) and biomass production (twofold), and decreased Iturin A and Surfactin S1 production. However, at high stirring conditions and in the presence of n-Dodecane, Iturin A production was improved.
Disciplines :
Agriculture & agronomy
Author, co-author :
Hbid, Choukri
Jacques, Philippe ;  Université de Liège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Bio-industries
Razafindralambo, Hary  ;  Université de Liège - ULiège > Gembloux Agro-Bio Tech > Gembloux Agro-Bio Tech
Mpoyo, KMpanya Kalonda
Meurice, Eric
Paquot, Michel ;  Université de Liège - ULiège > Gembloux Agro-Bio Tech > Gembloux Agro-Bio Tech
Thonart, Philippe ;  Université de Liège - ULiège > Gembloux Agro-Bio Tech > Gembloux Agro-Bio Tech - Biochimie et microbiologie industrielles
Language :
English
Title :
Influence of the production of two lipopeptides, Iturin A and Surfactin S1, on oxygen transfer during Bacillus subtilis fermentation
Publication date :
1996
Journal title :
Applied Biochemistry and Biotechnology
ISSN :
0273-2289
eISSN :
1559-0291
Publisher :
Humana Press, Totowa, United States - New Jersey
Volume :
57-8
Pages :
571-579
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 13 January 2011

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