Preservative Quiz

What is the primary purpose of using chemical preservatives in food?

• To improve the taste and texture of food

• To enhance the nutritional content of food

• To increase the shelf life of food

• To reduce the cost of food production

Answer explanation

Preservatives are added to foods to help prevent or slow spoilage due to bacteria, molds, fungi or yeast, as well as to slow or prevent changes in the food's color, flavor or texture, delay rancidity, and maintain freshness

Which of the following is a potential risk associated with consuming foods with chemical preservatives?

• Allergic reactions

• Vitamin deficiencies

• High blood pressure

• Muscle soreness

Answer explanation

The most common clinical manifestations of reactions to food additives are chronic urticaria and angioedema, and, less often, anaphylactic reaction, an exacerbation of symptoms of atopic dermatitis, bronchial asthma or allergic rhinitis.

Which of the following is a common chemical preservative used in processed meats?

• Ascorbic acid

• Sodium nitrate

• Citric acid

• Potassium chloride

Answer explanation

Sodium nitrite or potassium nitrite play a key role in the safety of processed meats. Nitrites, or in slow cured meats sodium or potassium nitrates which are gradually converted to nitrites, are the key ingredients in meat cures. They provide excellent protection against botulism in processed meats.

Which of the following foods is commonly preserved with sulfites?

• Fresh fruits

• Canned vegetables

• Dried fruits

• Baked goods

Answer explanation

Many conventionally dried fruits have added sulphur dioxide to preserve the fruits' original colour at ripeness, keep them soft and increase their shelf life.

What is the primary concern associated with the long-term consumption of foods containing chemical preservatives?

• Increased risk of food poisoning

• Development of antibiotic resistance

• Increased risk of chronic diseases

• Decreased absorption of nutrients

Answer explanation

According to several studies, health issues such as asthma, attention deficit hyperactivity disorder (ADHD), heart difficulties, cancer, obesity, and others are caused by harmful additives and preservatives