Rickes et al. recovered active crystalline vitamin B12 from the culture of Streptomyces olivaceus Streptomyces lactis Streptomyces griseus Bacillus megaterium TRUE ANSWER : ? YOUR ANSWER : ?
During fermentation, pyruvic acid is converted into organic products such as starch and cellulose ethyl alcohol and lactic acid glucose and fructose citric acid and isocitric acid TRUE ANSWER : ? YOUR ANSWER : ?
The submerged fermentation of vinegar utilizes special fermentor designs known as packed vinegar generator both (a) and (b) acetator cavitator TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is known for greater stability of the riboflavin producing capacity? Ashbya gossypii Eremothecium ashbyii Candida flareri None of these TRUE ANSWER : ? YOUR ANSWER : ?
Riboflavin is a by-product of __________ fermentation carried out by Clostridium spp. ethanol streptomycin acetone butanol citric acid TRUE ANSWER : ? YOUR ANSWER : ?
Cycloserine may be isolated from the cultures of S. lavendulae S. orchidaceus All of these S. garyphalus TRUE ANSWER : ? YOUR ANSWER : ?
A major organism used in commercial bioleaching for copper recovery is Aspergillus niger Thiobacillus ferrooxidans Pseudomonas aeruginosa Desulfovibrio desulfuricans TRUE ANSWER : ? YOUR ANSWER : ?
Protease, which is used for flavouring of sake and haze removal in sake is produced by A. niger A. flavus B. cereus A. oryzae TRUE ANSWER : ? YOUR ANSWER : ?
Which species from the followings is resistant to methyl tryptophan? E. coli Hansenula anomala Candida utilis B. subtilis TRUE ANSWER : ? YOUR ANSWER : ?
A major organic acid produced by a microbial process used in foods is citric acid sulfuric acid oxalic acid uric acid TRUE ANSWER : ? YOUR ANSWER : ?