Mechanical refrigeration that allowed food to be kept cool for an extended period of time was developed in the:
a. Late 1700s c. Late 1900s
b. Early 1800s d. Late 1800s
Question 2
These microbes are used extensively in the food industry because the enzymes they produce cause the fermentation of carbohydrates.
a. Clostridium botulinum c. Salmonellae
b. Aspergillus flavus d. Saccharomycetaceae
