Question

Which of the following is/are whey protein?

(a) α – lactalbumin

(b) β – lactoglobulin

(c) κ- lactis

(d) α – lactalbumin and  β – lactoglobulin

I got this question in an internship interview.

This intriguing question originated from Composition of Cow Milk in portion Chemistry of Milk of Dairy Engineering

Answer 1

Right choice is (d) α – lactalbumin and  β – lactoglobulin

Explanation: The whey proteins are: α-lactalbumin and β-lactoglobulin. Whey protein is a composite of globular proteins isolated from whey, the liquid material created as a by-product of cheese production.