creators_name: Makkar, R S
creators_name: Cameotra, Swaranjit Singh
type: article
datestamp: 2012-02-03 16:13:04
lastmod: 2012-03-29 06:37:18
metadata_visibility: show
title: Synthesis of enhanced biosurfactant by Bacillus subtilis MTCC 2423 at 45°C by foam fractionation
ispublished: pub
subjects: QR
full_text_status: restricted
keywords: Bacillus, enhanced biosurfactant, foam fractionation,
surfactin, thermophilic.
note: Copyright of this article belongs to Springer Science.
abstract: fermentor was carried out using Bacillus subtilis
MTCC 2423 at 45°C. A good yield was obtained from sucrose
(2%) substrate fermentation by continuous removal of the
product by foam fractionation. The biosurfactant was recovered from collapsed foam by acid precipitation. The biosurfactant yield (4.5 g/L) was about 4.5 times higher than the yield (ca. 1 g/L) obtained by shake-flask fermentation. Surface activity of the collapsed foam was very high, and total surface activity was observed in the collapsed foam. The structural characterization
of this biosurfactant produced at 45°C by the strain used
in this study was recently reported. The biosurfactant was analyzed by thin-layer chromatography, infrared, 1H nuclear
magnetic resonance, and mass spectroscopy and was found
to be identical to surfactin, a lipopeptide surfactant.
date: 2001
date_type: published
publication: Journal of Surfactants and Detergents
volume: 4
number: 4
publisher: Springer Science
pagerange: 355-357
id_number: doi:10.1007/s11743-001-0187-z
refereed: TRUE
issn: 1097-3958
official_url: http://dx.doi.org/10.1007/s11743-001-0187-z
related_url_url: http://www.springerlink.com/content/446k64l216673772/
related_url_type: pub
citation:   Makkar, R S and Cameotra, Swaranjit Singh  (2001) Synthesis of enhanced biosurfactant by Bacillus subtilis MTCC 2423 at 45°C by foam fractionation.  Journal of Surfactants and Detergents, 4 (4).  pp. 355-357.  ISSN 1097-3958     
document_url: http://crdd.osdd.net/open/875/1/swaranjit2001.pdf