#Question id: 3020
#Section 2: General Biology
During which phase of the bacterial growth curve does the total number of viable cells decline?
#Question id: 10795
#Section 6: Plant, Animal and Microbial Biotechnology
basic carbon skeleton of a flavonoid contains 15 carbons arranged in two aromatic rings connected by a three-carbon bridge. This structure results from two separate biosynthetic pathways:
#Question id: 209
#Section 2: General Biology
TPP is a/an ________ of yeast pyruvate decarboxylase.
#Question id: 15612
#Section 1: Engineering Mathematics
Let A and
Then (a + b)
#Question id: 14310
#Section 5: Bioprocess Engineering and Process Biotechnology
Glucose is converted to ethanol by immobilized yeast cells
entrapped in gel beads. The specific rate of ethanol production is: qP
= 0.2 g ethanol/g-cell-h. The effectiveness factor for an average bead is 0.8.
Each bead contains 50 g/L of cells. The voids volume in the column is 40%.
Assume growth is negligible (all glucose is converted into ethanol). The feed
flow rate is F = 400 l/h and glucose concentration in the feed is S0i
= 150 g glucose/l. The diameter of the column is 1 m and the yield coefficient
is about 0.49 g ethanol/g glucose. The column height is 4 m. What is the
ethanol concentration in the exit stream?