Industrial Microbiology — DU B. Sc. (Hons) Microbiology Previous Year Question Papers

(c) What is the function of any three of the following : (ii) Penicillin acylase (iv) Antifoam agent 6. (a) Write the steps of industrial production of any two of the following products : (7×2=14) (ii) Citric acid (iii) Ethanol (b) Name an industrial producer of the following : (ii) Glutamic acid (iv) Glucose oxidase : Part-III, Semester - VI, 1. (a) Define the following terms (any five) : (2×5=10) (b) Draw a well labeled diagram of CSTR. (5) (c) How can you measure and control DO during a fermentation process? (3) 2. Differentiate between the following (any three) : (i) Solid state and Submerged fermentation. (ii) Batch and Fed-batch fermentation. (iii) Lab-scale operation and Production-scale operation. (iv) Crude and synthetic media. 3. (a) Write the contributions of the any two of following scientists in the field of industrial microbiology : (2×2=4) (ii) Casimir Funk (iii) Louis Pasteur (b) Describe any four physico-chemical methods used for cell disruption. (8) (c) Describe the design and applications of an airlift fermenter. (6) 4. (a) Write short notes on any four of the following : (4×4=16) (i) Primary screening of industrially important microorganisms (ii) Solvent-solvent extraction (iii) Impellers (iv) Microbial transformation of steroids (v) Preservation of industrially important cultures (b) What is the substrate used for white wine production? (2) 5. (a) Elaborate the principle and applications of spray drying in downstream processing of industrial products. (6) (b) What are the advantages of enzyme immobilization? Elaborate any two methods of enzyme immobilization. (6)