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  • Question
  • The organism used for the preparation of sonti is


  • Options
  • A. Rhizopus sonti
  • B. Aspergillus oryzae
  • C. Lactobacillus vermiformis
  • D. Saccharomyces pyriformis

  • Correct Answer
  • Rhizopus sonti 


  • Beer and Wine problems


    Search Results


    • 1. A hydrometer

    • Options
    • A. measures wine acid
    • B. requires a few drops of juice
    • C. measures alcohol in the wine
    • D. measures grape sugar
    • Discuss
    • 2. Wine yeast

    • Options
    • A. is sensitive to sulphur di oxide
    • B. is resistant to sulphur di oxide
    • C. shows enhanced enzyme production in presence of sulphur di oxide
    • D. none of the above
    • Discuss
    • 3. Fining a wine is defined as

    • Options
    • A. adding one substance to remove another
    • B. removing small particles
    • C. adding acid
    • D. removing tannin
    • Discuss
    • 4. Sherry is a type of

    • Options
    • A. wine
    • B. beer
    • C. brandy
    • D. none of these
    • Discuss
    • 5. Malolactic fermentation

    • Options
    • A. produces lactic acid
    • B. reduces total acidity
    • C. produces diacetyl
    • D. all of these
    • Discuss
    • 6. At normal pH, penicillin remains in

    • Options
    • A. aqueous phase
    • B. solvent phase
    • C. both (a) and (b)
    • D. precipitates
    • Discuss
    • 7. Fermentation medium for oxytetracyclin (terramycin) consist of

    • Options
    • A. CSL, starch, (NH4)2 SO4, sodium chloride and CaCO3
    • B. CSL, (NH4)2 SO4, sodium chloride and CaCO3
    • C. CSL, starch,(NH4)2 SO4, ammonium chloride and CaCO3
    • D. CSL,(NH4)2 SO4, ammonium chloride and CaCO3
    • Discuss
    • 8. Which of the following precursor is added in the medium to get penicillin G?

    • Options
    • A. Phenyl carbamic acid
    • B. Phenyl acetic acid
    • C. Ammonium sulphate
    • D. Ammonium chloride
    • Discuss
    • 9. Antibiotics are typically produced in fed batch reactors because

    • Options
    • A. antibiotic yields are generally higher when cells enter the stationary phase
    • B. the precursors are often toxic to the cells
    • C. antibiotic yields are generally higher when cell growth slows
    • D. All of the above
    • Discuss
    • 10. Media composition for the production of streptomycin is

    • Options
    • A. soybean meal, glucose, peptone, malt extract, sodium chloride
    • B. soybean meal, glucose, peptone, malt extract, ammonium chloride
    • C. soybean meal, glucose, peptone, malt extract, calcium carbonate
    • D. soybean meal, glucose, peptone, malt extract, ammonium sulphate
    • Discuss


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