Multiple Choice
Which chemical is added to bread to prevent to growth of mold?
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11. Controlling Microbial Growth
Chemical Preservation of Perishable Products
1:52 minutesProblem 3
Textbook Question
Which of the following lists foods in order, from perishable to nonperishable?
a. Dried pasta, cheese, fruit, uncooked ground beef
b. Dried pasta, fruit, uncooked ground beef, cheese
c. Uncooked ground beef, fruit, cheese, dried pasta
d. Uncooked ground beef, fruit, dried pasta, cheese
Verified step by step guidance1
Step 1: Understand the terms 'perishable' and 'nonperishable'. Perishable foods spoil quickly and require refrigeration or special storage, while nonperishable foods have a long shelf life and can be stored at room temperature.
Step 2: Identify the perishability of each food item in the options: uncooked ground beef is highly perishable, fruit is moderately perishable, cheese is less perishable but still requires refrigeration, and dried pasta is nonperishable.
Step 3: Arrange the foods from most perishable to least perishable based on their typical storage requirements and spoilage rates: uncooked ground beef (most perishable), fruit, cheese, dried pasta (least perishable).
Step 4: Compare this order to each option provided to find which list matches the correct sequence from perishable to nonperishable.
Step 5: Select the option that correctly orders the foods as uncooked ground beef, fruit, cheese, dried pasta.
Verified video answer for a similar problem:This video solution was recommended by our tutors as helpful for the problem above
Video duration:
1mKey Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Food Perishability
Food perishability refers to how quickly a food item spoils or becomes unsafe to eat. Perishable foods, like raw meat and fresh fruit, spoil rapidly due to microbial growth and enzymatic activity, while nonperishable foods, such as dried pasta, have low moisture content and can be stored for long periods without spoiling.
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Microbial Growth and Spoilage
Microbial growth is a primary cause of food spoilage, especially in perishable foods. Bacteria, molds, and yeasts thrive in moist, nutrient-rich environments like meat and dairy, accelerating spoilage. Dry foods inhibit microbial growth due to low water activity, making them more shelf-stable.
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Food Preservation Methods
Food preservation techniques, such as drying, refrigeration, and fermentation, extend shelf life by slowing microbial growth or enzymatic reactions. For example, drying pasta removes moisture, making it nonperishable, while cheese is semi-perishable due to partial preservation by fermentation and aging.
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