Which of the following nitrogen sources is added in the fermentation medium of citric acid production? Peptone Urea Ammonium salt Both (a) and (b) TRUE ANSWER : ? YOUR ANSWER : ?
In liquid surface culture process for the fermentation to produce citric acid, A. niger floats on the surface of solution both (a) and (b) A. niger is used with solid substrate as sweet potato Fungal mycelium grows through out the solution in a deep tank TRUE ANSWER : ? YOUR ANSWER : ?
For the recovery of citric acid after fermentation, Ca(OH)2 is added to the slurry to precipitate calcium carbonate precipitate calcium phosphate precipitate calcium citrate precipitate calcium sulphate TRUE ANSWER : ? YOUR ANSWER : ?
In koji process for the fermentation to produce citric acid, Fungal mycelium grows through out the solution in a deep tank both (a) and (b) A. niger is used with solid substrate as sweet potato A. niger floats on the surface of solution TRUE ANSWER : ? YOUR ANSWER : ?
What is the pH of the medium when molasses is used as substrate for the production of citric acid? 6 3 5 4 TRUE ANSWER : ? YOUR ANSWER : ?
Alegar is a type of vinegar produced from ale fruit juices ethanol malted grain TRUE ANSWER : ? YOUR ANSWER : ?
During recovery step of citric acid, calcium citrate formed is treated with which of the following acid to precipitate calcium? None of these HCl HNO3 H2SO4 TRUE ANSWER : ? YOUR ANSWER : ?
In submerged process for the fermentation to produce citric acid, A. niger floats on the surface of solution both (a) and (b) A. niger is used with solid substrate as sweet potato Fungal mycelium grows through out the solution in a deep tank TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following microorganism is used for the production of citric acid? Saccharomyces cerevisiae Lactobacillus bulgaricus Aspergillus niger Streptococcus lactis TRUE ANSWER : ? YOUR ANSWER : ?