The medium, temperature, pH and dissolved oxygen (DO) were optimized.
The researchers have reported maximum enzyme activity until 48 72 h of SSF, depending on culture conditions (available fermentable sugars (carbon source), carbon to nitrogen (C N) ratio of the fermentation medium, temperature, pH, etc).
After determination of the best substrate for biosurfactant production, we indicate optimum size and amount of solid substrate, volume of medium, temperature, pH and Fe2+ concentrations on biosurfactant production.
The discrepancy may be attributable to different microenvironmental conditions such as solvent medium, temperature, pH, viscosity, or concentration.
Optimum reaction conditions with respect to medium composition, temperature, pH, pO2, co-substrate and feeding rates were found by means of reaction engineering studies.
Phospholipid-to-drug ratio, edge activator type, edge activator concentration, hydration medium temperature, hydration medium pH and sonication time were investigated to study their effect on particle size, zeta potential, drug entrapment efficiency, and diffusion steady-state flux.
Based on the statistic analysis; the optimum conditions were obtained 5.51, 20.13 °C and 60.98 mg/L as medium pH, medium temperature and initial Cu II) concentration, respectively.
To obtain stable linkages between silica matrix and functional moieties, the reaction conditions (pH medium, temperature, solvents) as well as functional organosilane compound must be carefully chosen [2].
Guerra-Santos et al. (1984 , 1986 showed that temperature, pH and medium composition have an influence on rhamnolipid production in P. aeruginosa.
For optimized extraction, different factors considered for the design were carbon sources, nitrogen sources, and ratio of carbon to nitrogen sources, temperature, pH value, medium capacities, rotation speed and culture time.
Thus in order to obtain mass production of TTX from TTX-producing bacteria in vitro, it is necessary to develop the optimum medium composition, such as the temperature, pH, salinity, rate of shaking, and light intensity, as well as the effective methods of isolating TTX from the culture media (batch or continuous methods).
