Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Surfactant production by the Rhodococcus erythropolis sH-5 bacterium grown on various carbon sources

Surfactant production by the Rhodococcus erythropolis sH-5 bacterium grown on various carbon sources It has been shown that the Rhodococcus erythropolis sH-5 strain can produce surfactants associated and not associated with the cell wall. Their content depends on medium composition, the nature of the carbon source, and oxygen supply. The highest biosurfactant (bioSF) yield is achieved by growing R. erythropolis sH-5 in medium with 2% kerosene at neutral pH. It has been found that the bioSF yield and emulsification index for various hydrocarbons depend on the kind of the nitrogen source used by the bacterium, increasing with replacement of KNO3 by NaNO3. The yields of biomass and bioSF in R. erythropolis depend on growth temperatures (max at 30°C) but not on water quality (bidistillate, catholyte, or anolyte). It has been found that sH-5 produces more cell-associated bioSF than extracellular species. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Applied Biochemistry and Microbiology Springer Journals

Surfactant production by the Rhodococcus erythropolis sH-5 bacterium grown on various carbon sources

Download PDF
6 pages

Loading next page...
 
/lp/springer-journals/surfactant-production-by-the-rhodococcus-erythropolis-sh-5-bacterium-SRhNErb6Ir

References (8)

Publisher
Springer Journals
Copyright
Copyright © 2008 by Pleiades Publishing, Ltd.
Subject
Life Sciences; Medical Microbiology ; Microbiology ; Biochemistry, general
ISSN
0003-6838
eISSN
1608-3024
DOI
10.1134/S0003683808020105
Publisher site
See Article on Publisher Site

Abstract

It has been shown that the Rhodococcus erythropolis sH-5 strain can produce surfactants associated and not associated with the cell wall. Their content depends on medium composition, the nature of the carbon source, and oxygen supply. The highest biosurfactant (bioSF) yield is achieved by growing R. erythropolis sH-5 in medium with 2% kerosene at neutral pH. It has been found that the bioSF yield and emulsification index for various hydrocarbons depend on the kind of the nitrogen source used by the bacterium, increasing with replacement of KNO3 by NaNO3. The yields of biomass and bioSF in R. erythropolis depend on growth temperatures (max at 30°C) but not on water quality (bidistillate, catholyte, or anolyte). It has been found that sH-5 produces more cell-associated bioSF than extracellular species.

Journal

Applied Biochemistry and Microbiology – Springer Journals

Published: Jan 19, 2011

There are no references for this article.