Preliminary results on cell cultivation confirmed that the generated chitosan scaffolds are characterized by a morphology that is potentially suitable for TE applications.
Importantly, the actual growth intensity observed in ad hoc batch cultivation without preliminary sequential growth passages can be significantly lower than the 'correct' SGR attributed to a given bacterial strain.
Preliminary results from a cultivation study show that several different D. nodosus serotypes are rarely found in sheep flocks and cattle herds in Norway.
By using a temperature-shift strategy of cultivation, consisting in preliminary growth at 28 °C followed by 6-day culture at 20 °C, optimal levels of dry cell weight (DCW), lipid content and GLA concentration were obtained from the recombinant strain: 18.55 g/L, 1.16 g/L and 71.6 mg/L, respectively.
Cultivation in these preliminary experiments continued up to 29 days, and samples for CFU/ml determination were taken from alternate vials on days 0, 4, 8, 11, 15, 18, 22, 25, and 29.
Based on preliminary tests on ease of cultivation, gain in biomass, morphology and taste, S. dolichostachya was investigated in more detail, and the optimal salinity for seedling establishment was found to be 100 mM.
In the future, addressing the three limiting factors, namely talent and human resource cultivation, fund-raising, and preliminary preparations, will be crucial for the developmental progress of urban rail transit during the 13th Five-Year Plan period.
Recombinant protein expression under the control of PAOX1 relies on a preliminary production of yeast biomass through cultivation on glucose/glycerol, followed by induction of protein production in the presence of methanol as the sole carbon source [ 25].
In an effort to resolve this poor performance of transformants at the later stages of cultivation, we attempted a preliminary fed-batch experiment where nutrients were supplemented at intervals to one of the transformants NsbHLH2 3–11.
Based on preliminary results (data not shown), factors such as pH, cultivation agitation rate, type of the carbon source, the presence of additive agents and trace metals were screened separately for their effects on N. intermedia pellet formation.
