![](/images/graphics-bg.png)
Enhancement of Bacillus subtilis Lipopeptide Biosurfactants Production through Optimization of Medium Composition and Adequate Control of Aeration
Joint Authors
Chaabouni-Ellouze, Semia
Chaabouni-Ellouze, Semia
Source
Biotechnology Research International
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-09-27
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Information Technology and Computer Science
Abstract EN
Interest in biosurfactants has increased considerably in recent years, as they are potentially used in many commercial applications in petroleum, pharmaceuticals, biomedical, and food processing industries.
Since improvement of their production was of great importance to reduce the final coast, cultural conditions were analyzed to optimize biosurfactants production from Bacillus subtilis SPB1 strain.
A high yield of biosurfactants was obtained from a culture of B.
subtilis using carbohydrate substrate as a carbon source; among carbohydrates, glucose enhanced the best surfactin production.
The optimum glucose concentration was 40 g/L.
Higher amount of biosurfactants was obtained using 5 g/L of urea as organic nitrogen source and applying C/N ratio of 7 with ammonium chloride as inorganic nitrogen source.
The highest amount of biosurfactants was recorded with the addition of 2% kerosene.
Moreover, it was shown, using an automated full-controlled 2.6 L fermenter, that aeration of the medium, which affected strongly the growth regulated biosurfactants synthesis by the producing cell.
So that, low or high aerations lead to a decrease of biosurfactants synthesis yields.
It was found that when using dissolved oxygen saturation of the medium at 30%, biosurfactants production reached 4.92 g/L.
American Psychological Association (APA)
Chaabouni-Ellouze, Semia& Chaabouni-Ellouze, Semia. 2011. Enhancement of Bacillus subtilis Lipopeptide Biosurfactants Production through Optimization of Medium Composition and Adequate Control of Aeration. Biotechnology Research International،Vol. 2011, no. 2011, pp.1-6.
https://search.emarefa.net/detail/BIM-488549
Modern Language Association (MLA)
Chaabouni-Ellouze, Semia& Chaabouni-Ellouze, Semia. Enhancement of Bacillus subtilis Lipopeptide Biosurfactants Production through Optimization of Medium Composition and Adequate Control of Aeration. Biotechnology Research International No. 2011 (2011), pp.1-6.
https://search.emarefa.net/detail/BIM-488549
American Medical Association (AMA)
Chaabouni-Ellouze, Semia& Chaabouni-Ellouze, Semia. Enhancement of Bacillus subtilis Lipopeptide Biosurfactants Production through Optimization of Medium Composition and Adequate Control of Aeration. Biotechnology Research International. 2011. Vol. 2011, no. 2011, pp.1-6.
https://search.emarefa.net/detail/BIM-488549
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-488549