Exam 28: Applied and Industrial Microbiology

Figure 28.3 -Figure 28.3 shows the growth curves of Acetobacter under different conditions. Which culture would produce the highest amount of the primary metabolite acetic acid?

Aseptic packaging (where the packaging itself is rendered sterile) helps to preserve foods through

All of the following are reasons for utilizing algae for biofuel production EXCEPT

All of the following foods are produced using microbial fermentations EXCEPT

If an industrial microbiologist works with Acidithiobacillus ferrooxidans, he is likely to be involved in copper mining.

Xanthan used in household products is produced by bacteria

Vessels used for industrial fermentation reactions are known as bioreactors. Explain the difference between batch production and continuous flow production using a bioreactor.

Which of the following pertains to an improperly canned food product on a store shelf that has a bad odor and putrefaction of the canned material?

Which of the following reactions is performed by yeast in wine-making?

Radiation works to preserve foods through

Vitamins A and E are commonly produced by microorganisms.)

Which of the following is an undesirable contaminant in wine-making?

Figure 28.1 -In Figure 28.1, assume the cells are your desired product and you want to maintain a continuous culture. Remember, the top lines/markings indicate the different phases observed in the curve below them. When would you harvest cells to maximize your yield?

Spoilage of canned foods due to inadequate processing, NOT accompanied by gas production, is

Explain how ionizing radiation can be used to preserve foods. Discuss its advantage over canning as a method of preservation.

What process does yeast use to produce ethanol for automobile fuel from corn?

Microorganisms play an active role in the formation of industrial products. Which of the following is mismatched?

As cheese ages, it gets

The production of vinegar relies on the microbial oxidation of ethanol to acetic acid.