41. The maximum concentration of ethanol that is achieved by successive distillation of fermentation broth in continuous stills is

A. 60%
B. 95%
C. 70%
D. 99%

42. The strain C. glutamicum can be used for the production of

A. L-ornithine
B. L-phenylalanine
C. L-glutamine
D. all of these

43. Which of the following is known for greater stability of the riboflavin producing capacity?

A. Eremothecium ashbyii
B. Ashbya gossypii
C. Candida flare
D. None of these

44. Species of the genus Streptomyces are known for

A. the production of antibiotics
B. the production of beer
C. the production of cheese
D. nitrification

45. The organism used to produce L-glutamic acid is

A. Micrococcus glutamicus
B. Brevibacterium ammoniagenes
C. Arthrobacter globiformis
D. all of these