Nicotiana tabacum cells are cultured to high density for production of polysaccharide gum. The reactor used is a stirred tank, containing initially 100 litres medium. The maximum specific growth rate of the culture is 0.18 d^-1 and the yield of biomass from substrate is 0.5 g g^-l. The concentration of growth-limiting substrate in the medium is 3% (w/v). The reactor is inoculated with 1.5 g l^{- 1} cells and operated in batch until the substrate is virtually exhausted; medium flow is then started at a rate of 4 l d^-1. Fed-batch operation occurs under quasi-steady-state conditions. Fed-batch operation is carried out for 40 d. What is the final mass of cells in the reactor?

                               _____________________

TLS Online TPP Program

#Question id: 15863

#Section 6: Plant, Animal and Microbial Biotechnology

what is protoplast?

TLS Online TPP Program

#Question id: 16787

#Section 1: Engineering Mathematics

The following observations are arranged in ascending order. The median of the data is 15 find the value of x. 

8, 11, 12, x + 6, 17, 18, 23 

TLS Online TPP Program

#Question id: 15459

#Section 6: Plant, Animal and Microbial Biotechnology

In the growth curve of a bacteria population, the bacteria are rapidly increasing in number in the

TLS Online TPP Program

#Question id: 20010

#Section 5: Bioprocess Engineering and Process Biotechnology

In an activated sludge process, the biomass is recycled to

TLS Online TPP Program

#Question id: 3927

#Section 3: Genetics, Cellular and Molecular Biology

An operon is __