Principles of Food Science (ISH 150) - Chapter 5

What is food microbiology?

Answer explanation

Food microbiology is the study of microorganisms in food, including their characteristics, behavior, and interactions with food products.

Identify types of bacteria that could be found in foods.

Answer explanation

Types of bacteria that could be found in foods include Salmonella, Listeria, E. coli, and Staphylococcus aureus.

Explain briefly about the factors that affecting microbial growth in foods.

Answer explanation

Factors affecting microbial growth in foods include temperature, pH, water activity, oxygen availability, and nutrient availability.

What are the three major categories into which foods can be classified with respect to spoilage?

Answer explanation

The three major categories into which foods can be classified with respect to spoilage are perishable foods, semi-perishable foods, and non-perishable foods.

What are the symptoms of food poisoning?

Answer explanation

Symptoms of food poisoning include nausea, vomiting, diarrhea, abdominal pain, fever, and weakness. These symptoms can vary depending on the type of bacteria or virus causing the food poisoning.

Explain briefly about the process in which food deteriorates to the point where it is not edible to humans or its quality of edibility becomes reduced.

Answer explanation

Food deteriorates due to factors like microbial growth, oxidation, enzymatic reactions, and physical changes, leading to spoilage or reduced quality for consumption.

What are the different kinds of microorganisms responsible for food spoilage?

Answer explanation

Different kinds of microorganisms responsible for food spoilage include bacteria, molds, yeasts, and viruses.

Explain the relationship between Relative Humidity (RH) and temperature in the storage environment.

Answer explanation

Relative Humidity (RH) is inversely related to temperature in the storage environment. As temperature increases, RH decreases, and vice versa.

What are the symptoms that indicate you should rest and drink plenty of fluids?

Answer explanation

Symptoms such as fatigue, fever, and dehydration indicate the need to rest and drink plenty of fluids.

What are the groups of people more susceptible to food poisoning?

Answer explanation

Groups of people more susceptible to food poisoning include young children, elderly individuals, pregnant women, and individuals with weakened immune systems.