#Question id: 14245
#Section 5: Bioprocess Engineering and Process Biotechnology
Ethanol is produced by anaerobic fermentation of glucose by
Saccharomyces cerevisiae. For the particular strain of S. cerevisiae employed,
the maintenance coefficient is 0.18 kg kg- 1 h- 1, Yxs is
0.11 kg kg-1, YPX is 3.9 kg kg-1 and µmax is 0.4 h-1. It is decided to investigate the possibility
of using Zymomonas mobilis bacteria instead of yeast for making ethanol. Z.
mobilis is known to produce ethanol under anaerobic conditions using a
different metabolic pathway to that employed by yeast. Typical values of Yxs
are lower than for yeast at about 0.06 kg kg-1; on the other hand,
the maintenance coefficient is higher at 2.2 kg kg -1 h -1.
Ypx for Z. mobilis is 7.7 kg kg-l; µmax is 0.3 h- 1. Y’PS
is maximum and equal to the theoretical yield when there is zero growth and all
substrate entering the cell is used for maintenance activities. If ethanol is
the sole extracellular product of energy-yielding metabolism, calculate mp for yeast?
#Question id: 15943
#Section 1: Engineering Mathematics
is singular, then
equals#Question id: 27589
#Section 5: Bioprocess Engineering and Process Biotechnology
#Question id: 3333
#Section 3: Genetics, Cellular and Molecular Biology
The flipper of whale and the wings of bats represent a case of
#Question id: 159
#Section 2: General Biology
The chirality of an amino acid results from the fact that its alpha carbon: