Food Preservation and Additives Concepts

The video explores various food preservatives, including humectants, antioxidants, antifungals, antibiotics, and colorants. It explains how these substances help maintain food texture, prevent oxidation, inhibit mold and bacteria growth, and enhance appearance. The video also addresses safety concerns and regulatory limits, emphasizing moderation in consumption.

What is the primary purpose of food preservatives?

• To extend the shelf life of food

• To increase the nutritional value

• To make food more colorful

• To enhance the flavor of food

Which of the following is a common humectant used in food?

• Vinegar

• Lemon juice

• Baking soda

• Sugar

What is the main function of antioxidants in food?

• To increase acidity

• To add sweetness

• To prevent oxidation

• To enhance color

Which synthetic antioxidant is often debated for its safety?

• Beta-carotene

• Lycopene

• BHT

• Vitamin C

What is the role of antifungals in food preservation?

• To add flavor

• To prevent mold growth

• To increase shelf life

• To enhance texture

Which of the following is a common antifungal agent?

• Ascorbic acid

• Citric acid

• Benzoic acid

• Sodium chloride

Why is there a push to reduce the use of antibiotics in food preservation?

• They are too expensive

• They enhance food color

• They contribute to antibiotic resistance

• They cause food to spoil faster

What are bacteriocins derived from?

• Plants

• Fungi

• Animals

• Bacteria

What is the purpose of adding colorants to deli meats?

• To disguise expired food

• To maintain a fresh appearance

• To improve taste

• To increase nutritional value

Which compounds are used as colorants and antioxidants in deli meats?

• Sulfates and sulfites

• Nitrates and nitrites

• Phosphates and phosphites

• Chlorides and chlorates