A baker forgets to put yeast in his bread dough. Which of the following do you expect to happen to the bread as a result?

Xanthan used in household products is produced by bacteria

Bioreactors are widely used for industrial fermentation. Which of the following conditions must be closely monitored for optimal fermentation?

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

Radiation works to preserve foods through

Canning works to preserve foods through

Spoilage of canned foods stored at high temperatures, accompanied by gas production, is

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

Which of the following pairs is mismatched?

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?

All of the following are fuels produced by microorganisms EXCEPT

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

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

Commercial sterilization differs from complete sterilization in that commercial sterilization

All of the following are advantages of a bioreactor instead of a flask culture EXCEPT

Microbial products can be improved by all of the following EXCEPT

Which of the following microorganisms is usually used in the fermentation of alcoholic beverages?

All of the following are true of irradiation methods used for food preservation and sterilization EXCEPT

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

All of the following are industrial products produced using microbial fermentations EXCEPT

All of the following are industrial products produced using microbial fermentations EXCEPT

Biomass is a renewable energy source derived from the organic matter produced by living organisms. All of the following are sources of biomass EXCEPT

Microorganisms themselves are commercial products. Which of the following microbes is available as a product sold in retail stores?

Canning preserves food

All of the following are uses for ionizing or ultraviolet radiation EXCEPT

Aseptic packaging utilizes which of the following to sterilize laminated paper or plastic prior to filling with food?

You are growing Bacillus subtilis, an aerobic bacterium that can also carry out fermentation when required, in a bioreactor and notice that the growth rate has slowed and the pH has decreased. What could you add?

You are growing Bacillus subtilis, an aerobic bacterium that can also carry out fermentation when required, in a bioreactor and notice that the growth rate has slowed and the pH has decreased. You suspect the bacteria are

What role do lactic acid bacteria play in cheese production?

Which of the following microbes produces a natural biopesticide?

Acidithiobacillus ferrooxidans is used for the recovery of ________ from ore.

As cheese ages, it gets

The following steps are required for making cheese. What is the second step, which helps to provide the characteristic flavors and aromas of the cheese?

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

All of the following are industrial enzymes made by microbial fermentations EXCEPT

What will be produced if wine is aerated and inoculated with bacteria of the genera Acetobacter and Gluconobacter?

Which of the following reactions makes wine less acidic, and is important for good flavor when grapes with higher acidity are used?

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

Commercial sterilization of processed canned foods uses a 12D treatment which is based upon a theoretical population of 1012 C. botulinum endospores in a can of food. After treatment, there would theoretically be how many endospores left?

All of the following are industrial products produced by microbes EXCEPT