What is Listeria monocytogenes?

• A fungus commonly found in ice cream

• A virus that affects dairy cattle

• A type of beneficial bacteria used in yogurt production

• A pathogenic bacterium that can cause foodborne illness

In an ice-cream plant, which of the following is most likely to be a Critical Control Point (CCP) for controlling Listeria monocytogenes?

• Packaging the final product

• Storing finished products in the freezer

• Pasteurization of the ice-cream mix

• Adding artificial flavorings

What is the primary purpose of trace-back analysis in a food contamination incident in a food company?

• To identify the source of contamination within manufacturing process

• To calculate the cost of the recall

• To determine the shelf life of the contaminated product

• To assess the nutritional value of the product

HACCP stands for __________, which is a systematic approach to identifying and controlling food safety hazards.

Which of the following is a key characteristic of Listeria monocytogenes?

• It is a spore-forming bacterium

• It can cause severe foodborne illness in elderly, pregnant women, and immunocompromised individuals

• It can grow at refrigeration temperatures (2–4°C)

• It is only found in raw vegetables

In the Neogen molecular detection system, what is the purpose of enrichment before analysis?

• To remove all bacteria from the sample

• To dilute the sample

• To increase the number of target organisms for detection

• To sterilize the sample

What molecule does the Neogen molecular detection system target to identify Listeria monocytogenes?

• Carbohydrates

• DNA

• Proteins

• Lipids