Question

3.(a)yeast cells grow in the exponential phase. The cell mass concentrations are given in the below table. Calculate the specific growth rate, max time (hour) cell concentration, cx (kg dry cell m-3 medium) 0 0.5 5 1.3 10 4.0 15 10.2 20 24.0 25 52.5 (b) yeast cells grew from 19 to 54 kg dry cells m-3 in 7 hours. During this period 81 g of glycerol was consumed per 1l of the fermentation broth. Determine the average specific growth rate and the cell yield with respect to glycerol.

Answer 1

Determination of the genetic bacteria count of Akkermansia, Bacteroides,Bifidobakterium,Faecalibacterium et al. An adult human being is settled by about 1014 bacteria (100 trillion!), not only, but predominantly in the gastrointestinal tract.