What are the advantages of biosensors in agriculture?

 Easy to handle

 Measures non-polar molecules

 Gives accurate readings

Longer storage

Which of the following options are incorrect?

TLS Online TPP Program

#Question id: 31858

#Unit 12. Biochemical Engineering

If the partitioning coefficient (K) of a solute is 20 when it is extracted by an organic solvent from culture medium, what is the amount of solvent required per litre of culture medium to extract 90% of the solute in a single equilibrium stage? 

TLS Online TPP Program

#Question id: 31890

#Unit 12. Biochemical Engineering

The efficiency of an organic sludge composting method can be improved by various physicochemical options. Which one of the following is NOT a recommended option for the same?

TLS Online TPP Program

#Question id: 26692

#Unit 12. Biochemical Engineering

In a single stage continuous extraction system. solvent is added to cell-free culture filtrate containing the product. If the partition coefficient of the product is 5. then to extract 90% of the product, assuming ideal single stage, the flow rate of solvent should be times the flow rate of the culture filtrate.

TLS Online TPP Program

#Question id: 26724

#Unit 12. Biochemical Engineering

A batch reactor produces 25g/L of product. The fermentation time is 4 days and 1 day extra is required as downtime for cleaning, sterilization and setting up the reactor. If total number of working days is taken at 300 days/year. Then to produce 1 ton/year of product the reactor size has to be approximately

TLS Online TPP Program

#Question id: 26739

#Unit 12. Biochemical Engineering

A student decided to perform liquid-liquid extraction of solute A and solute B separately. Based on the table below, indicate which of the following options is CORRECT about their partition coefficient (K)?

	Solute A	Solute B
Concentration of solute in extract (g/L)	50	1
Concentration of solute in raffinate (g/L)	1	50

TLS Online TPP Program

#Question id: 23284

#Unit 12. Biochemical Engineering

A diafiltration process is used to remove salts from a protein solution of 1L. After 1L of make-up buffer (without salts) has been added to this system, the residual salt concentration would be of the original.