When C. glutamicum was grown in a medium containing a high concentration of biotin, the amount of glutamate produced was ________
(a) 10-40 µg/mg^-1
(b) 20-35 µg/mg^-1
(c) 25-36 µg/mg^-1
(d) 35-40 µg/mg^-1
This question was posed to me in an international level competition.
I would like to ask this question from Improvement of Industrial Microorganisms in chapter The Isolation, Preservation and Improvement of Industrial Microorganisms of Fermentation Technology