Research Article

Production of a Lipopeptide Biosurfactant by a Novel Bacillus sp. and Its Applicability to Enhanced Oil Recovery

Figure 4

Effect of (a) temperature, (b) pH, and (c) salinity on the stability of biosurfactant.
621519.fig.004a
(a)
621519.fig.004b
(b)
621519.fig.004c
(c)