TY  - JOUR
ID  - open785
UR  - http://dx.doi.org/10.1038/sj.jim.2900474
IS  - 1
A1  - Makkar, R S
A1  - Cameotra, Swaranjit Singh
N2  - The ability of a Bacillus subtilis strain to grow and produce biosurfactant on different carbon and nitrogen sources under thermophilic conditions (45°C) was studied. The strain was able to reduce surface tension to 34 dynes cm-1 on 2% sucrose, and 32 dynes cm-1 on starch after 96 h of growth. The biosurfactant was stable at 100°C and within
a wide pH range (3.0?11.0). Biosurfactant formation at mesophilic conditions (30°C) was also studied. The organism
was able to produce the maximum amount of biosurfactant when nitrate ions were supplied as the nitrogen source.
The potential application of the biosurfactant in oil recovery from desert oil fields, acidic and alkaline environments is demonstrated. The biosurfactant was identical to surfactin as confirmed by TLC and IR analysis.
VL  - 20
TI  - Production of biosurfactant at mesophilic and thermophilic conditions by a strain of Bacillus subtilis
AV  - restricted
EP  - 52
N1  - Copyright of this article belongs to Springer Science.
Y1  - 1998///
PB  - Springer Science
JF  - Journal of Industrial Microbiology and Biotechnology
KW  - biosurfactant; thermophilic; Bacillus subtilis
SN  - 1367-5435
SP  - 48
ER  -