Biosurfactant-Producing Lactobacilli : Screening, Production Profiles, and Effect of Medium Composition
Joint Authors
Teixeira, José A.
Rodrigues, Lígia R.
Gudiña, Eduardo J.
Source
Applied and Environmental Soil Science
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-12-27
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Earth Science , Water and Environment
Abstract EN
Biosurfactant production was screened in four lactobacilli strains.
The highest biosurfactant production (excreted and cell-bound biosurfactants) was achieved with Lactobacillus paracasei ssp.
paracasei A20, a strain isolated from a Portuguese dairy plant, with a decrease in the surface tension of 6.4 mN m−1 and 22.0 mN m−1, respectively.
Biosurfactant production by this strain was evaluated under different culture broth compositions.
The use of different nitrogen sources revealed that yeast extract is essential for bacterial growth, while peptone is crucial for biosurfactant synthesis.
For biosurfactant production, the use of peptone and meat extract yielded a higher production when compared to the standard medium, with a surface tension reduction of 24.5 mN m−1 Furthermore, experiments were also conducted in a reactor with pH and temperature control.
Biomass and biosurfactant production in bioreactor was higher comparing with the experiments conducted in shake flaks.
The optimization procedure adopted in the current work was found to improve the biosurfactant production and opened new perspectives for the use of L.
paracasei ssp.
paracasei A20 as a promising biosurfactant-producer.
American Psychological Association (APA)
Gudiña, Eduardo J.& Teixeira, José A.& Rodrigues, Lígia R.. 2011. Biosurfactant-Producing Lactobacilli : Screening, Production Profiles, and Effect of Medium Composition. Applied and Environmental Soil Science،Vol. 2011, no. 2011, pp.1-9.
https://search.emarefa.net/detail/BIM-453964
Modern Language Association (MLA)
Gudiña, Eduardo J.…[et al.]. Biosurfactant-Producing Lactobacilli : Screening, Production Profiles, and Effect of Medium Composition. Applied and Environmental Soil Science No. 2011 (2011), pp.1-9.
https://search.emarefa.net/detail/BIM-453964
American Medical Association (AMA)
Gudiña, Eduardo J.& Teixeira, José A.& Rodrigues, Lígia R.. Biosurfactant-Producing Lactobacilli : Screening, Production Profiles, and Effect of Medium Composition. Applied and Environmental Soil Science. 2011. Vol. 2011, no. 2011, pp.1-9.
https://search.emarefa.net/detail/BIM-453964
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-453964