Which of the following is the source of pro-vitamin A?
A. Streptococcus sp.
B. Rhodotorula gracilis
C. Rhizopus sp.
D. Yeast
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The first stage in the screening of microorganisms for industrial applications is
A. Gene isolation
B. Isolation
C. Transduction
D. Hybridization
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The first commercially produced plant secondary metabolite using bioreactor technology is
A. Shikonin
B. Colchicines
C. Cercosporin
D. Cytokinin
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"Substances added prior to or simultaneously with the fermentation which are incorporated without any major change into the molecule of the fermentation product and which generally cause increases in the yield or improves the quality of the product" can be referred to as
A. Antifoam agents
B. Buffering molecules
C. Growth factors
D. Precursor molecules
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Which of the following organisms used for the SCP production show the highest growth rate?
A. Bacteria
B. Algae
C. Yeast
D. Filamentous fungi
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The production of wines is referred to as
A. Carcinology
B. Enology
C. Biochemistry
D. Brewing
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For an enzyme catalysed reaction in a batch bioreactor, which one of the following is true under quasi-steady state conditions?
A. Enzyme-substrate complex concentration remains nearly constant
B. Substrate concentration remains nearly constant
C. Product concentration remains nearly constant
D. Both substrate and product concentration remain nearly constant
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The term "mother of vinegar" is used for
A. Mycodermaaceti
B. Acetobacterpasteurians
C. Gliocladiumroseum
D. Pasteurellapestis
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Antibiotic bleomycin is secreted by
A. Bacillus sp.
B. Aspergillus sp.
C. Streptomyces sp.
D. Acremonium sp.
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Phenyl acetic acid in penicillin fermentation is used as
A. Inhibitor
B. Inducer
C. Osmoregulator
D. Precursor
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Which enzymes are used for the production of high gravity beer?
A. Glucoamylase
B. Fungal α-amylase
C. Neutral proteases
D. Cellulases
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Alginate is obtained from
A. Brown algae
B. Green algae
C. Red algae
D. Blue green algae
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Which of the following has highest at alcohol constant?
A. Gin
B. White wine
C. Beer
D. Red wine
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What is ale?
A. Fermented com
B. Type of beer
C. Fermented carrot
D. None of these
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Saccharomyces cerevisiae is employed for the production of
A. Idli
B. Beer
C. Yoghurt
D. All the above
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The least used heat transfer-design in bioreactor is
A. Jacket
B. limpet coil
C. Internal cooling coil
D. External heat exchanger
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Which of the following microbes is used in the production of vinegar?
A. Acetobacter aceti
B. Streptococcus sp.
C. Penicillium notatum
D. All the above
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Fumaric acid is produced with the help of
A. Rhizopusnigricans
B. Aspergillusflavus
C. Bacillussubtilis
D. Fumaric acid is produced with the help of
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A group of antibiotics produced by a species of marine fungus is
A. Penicillins
B. Cephalosporins
C. Griseofulvin
D. Erythromycin
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Manufacture of alcoholic beverages such as beer from malted grains is called
A. Proteolysis
B. Brewing
C. Mashing
D. Wort preparation
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