Food Additives Quiz – 16

Q. Which of the following antioxidants functions as an electron donor, metal chelators and oxygen scavenger

1. Tocopherol
2. Propyl gallate
3. Ascorbic acid
4. Gluthathione peroxidase

Answer: c)

Ascorbic acid: Ascorbic acid and its esters function as antioxidants with some substrates by protecting double bonds and scavenging oxygen. … Ascorbic acid also lowers the oxidation state of many metals and valence may thus affect oxidation catalysis.

Q. Which of the following compounds acts as both synergists and antioxidants

1. Ascorbic acid
2. Citric acid
3. Phosphoric acid
4. Tartaric acid

Answer: a)

Ascorbic acid: Ascorbic acid and its esters function as antioxidants with some substrates by protecting double bonds and scavenging oxygen. … Ascorbic acid also lowers the oxidation state of many metals and valence may thus affect oxidation catalysis.

Q. Natamycin is also called

1. Pimaricin
2. Nisin
3. Streptomycin
4. None of the above

Answer: a)

Pimaricin: The preservative appears on Whole Food’s “Unacceptable Ingredients for Food” list and has been barred from products sold by the grocery chain since 2003.

Q. Which salt of saccharine is mainly used as sweetner

1. Calcium
2. Potassium
3. Magnesium
4. Sodium

Answer: d)

Sodium: Sodium saccharin is the solid form of the artificial sweetener saccharin. Saccharin is non-nutritive and is used to add sweetness to beverages and foods without the calories or detrimental effects of consuming sugar.

Q. Which of the following is used as an anticaking agent

1. Tricalcium phosphate
2. Magnesium silicate
3. Calcium silicate
4. All of the above

Answer: d)

• Tricalcium phosphate (abbreviation TCP) is a tricalcium salt of phosphoric acid with the chemical formula Ca3(PO4)2. In food, it is used as an anticaking agent in powdered food and a nutritional supplement of calcium and phosphorus in infant formulae and cereals.
• Food grade magnesium silicate is an anticaking agent used in table salts and vanilla powder. 
• Calcium silicate (CaSiO₃), a commonly used anti-caking agent, added to e.g. table salt, absorbs both water and oil.