Question

Casein cannot be classified as _________

(a) α- casein

(b) β- casein

(c) κ-casein

(d) Delta- casein

This question was posed to me in unit test.

Origin of the question is Composition of Cow Milk in division Chemistry of Milk of Dairy Engineering

Answer 1

Correct choice is (d) Delta- casein

For explanation I would say: Casein is a group of proteins commonly found in mammalian milk. They can be classified α- casein; β- casein and κ-casein.