The yellow colour of cow milk is due to which of the following?

Correct option is B

Option (a): Incorrect
• Xanthophyll contributes to yellow pigments in plants but is not responsible for cow milk colour.
Option (b): Correct
• Cow milk contains β-carotene, a fat-soluble pigment present because cows convert dietary carotenoids only partially into vitamin A.
• The unconverted β-carotene dissolves in milk fat, giving cow milk its natural yellowish tint.
• This is clearly mentioned in the FSSAI Milk & Milk Products training manual.
Option (c): Incorrect
• Riboflavin gives a greenish-yellow fluorescence, not the characteristic yellow of cow milk.
Option (d): Incorrect
• Flavones are plant pigments and have no role in milk coloration.