Rhamnolipid production by Pseudomonas aeruginosa LBI growing on soapstock as the sole carbon source

A new bacterial strain, was isolated from petroleum contaminated soil, identified and named Pseudomonas aeruginosa strain LBI. The new strain produced surface-active rhamnolipids by batch cultivation in a mineral salts medium with soapstock as the sole carbon source. Biosurfactant production increas...

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Bibliographic Details
Published inJournal of food engineering Vol. 54; no. 4; pp. 283 - 288
Main Authors Benincasa, M, Contiero, J, Manresa, M.A, Moraes, I.O
Format Journal Article
LanguageEnglish
Published Oxford Elsevier Ltd 01.10.2002
Elsevier
Subjects
Biological and medical sciences
Biotechnology
Chemical industry. Chemical engineering
Fundamental and applied biological sciences. Psychology
Industrial applications and implications. Economical aspects
Pseudomonas aeruginosa
Rhamnolipid
Soapstock
Vegetable oil
Pseudomonas aeruginosa
Vegetable oil
Soapstock
Rhamnolipid
Pseudomonadales
Microbial activity
Biotechnology
Strain specificity
Surfactant
Experimental study
Glycolipid
Bioreactor
Rhamnose
Microorganism culture
Bacteria
Pseudomonadaceae
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Summary:A new bacterial strain, was isolated from petroleum contaminated soil, identified and named Pseudomonas aeruginosa strain LBI. The new strain produced surface-active rhamnolipids by batch cultivation in a mineral salts medium with soapstock as the sole carbon source. Biosurfactant production increased after nitrogen depletion. The maximum rhamnolipid concentration, 15.9 g/l, was reached when it was incubated in a bioreactor with a constant K L a of 169.9 h −1 .
ISSN:0260-8774
1873-5770
DOI:10.1016/S0260-8774(01)00214-X