The effects of impeller size, agitation and aeration on the rate of yeast growth were investigated using bench-top bioreactors. This exercise, carried out over a six-month period, served as an effective demonstration of the importance of different operating parameters on cell growth and provided a means of determining the optimisation conditions for biomass production. The project involved collaboration with a research student at University College London and provided the team of young school students (age range 16-18 years) with an excellent experience of academic and industrially relevant research, embracing many of the elements associated with working in the field of biochemical engineering: this was one of the principal objectives of the exercise.
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