BIOMOLECULES AND ENZYMES

Detailed explanation-1: -The compound that renders the yellowish colour is riboflavin, a water-soluble vitamin known as vitamin B2, which was discovered to be a constituent of the so-called old yellow enzyme by a Nobel prize winner, Professor Otto Warburg in 1925.

Detailed explanation-2: -Vitamin B2, or riboflavin, is naturally present in foods, added to foods, and available as a supplement. Bacteria in the gut can produce small amounts of riboflavin, but not enough to meet dietary needs.

Detailed explanation-3: -Riboflavin occurs as a yellow to orange-yellow, crystalline powder.

Detailed explanation-4: -Riboflavin (also known as vitamin B2) is one of the B vitamins, which are all water soluble. Riboflavin is naturally present in some foods, added to some food products, and available as a dietary supplement.