Question

Cow’s milk is more nutritious and slightly yellow due to the presence of
A. Vitamin D
B. Ascorbic acid
C. Riboflavin
D. Carotene

Answer 1

Hint: It is a photosynthetic pigment found in various plants, bacteria, and algae. It also acts as antioxidants in the human body.

Complete answer:
Cow milk contains a coloring pigment Beta-carotene which is found in the grass where the cows graze on. Carotenoid is a precursor of vitamin-A which gets converted into enterocytes and hepatocytes of animals. It is a fat-soluble pigment responsible for the yellow color of milk and milk products like cream, butter, ghee, etc. β-Carotene is an antioxidant that serves various immune regulatory properties.

Additional information:

Cow's milk contains lactose which is a disaccharide of carbohydrate and composed of glucose and galactose.
Cow's milk contains about 30-35 gm of proteins per liter.
Cow milk proteins are generally classified into caseins, whey proteins, and milk fat globular membrane proteins.
India is the second-largest cow milk producing country.
Cow milk has amino acids and vitamins which makes the protein that helps in food digestion.
It helps strengthen and support the immune system and reduces the chances of cancer.
Cow milk is more nutritious and healthier than any other animal’s milk.
The major whey protein in cow milk includes Beta-lactoglobulin which is a small globular protein with a β-barrel structure. It is capable enough to bind with hydrophobic ligands.

So, the correct answer is ‘carotene’.

Note:
- Lactose intolerance is a digestive disorder in which a person is unable to digest the lactose. It is the main carbohydrate in milk and milk products.
- It occurs due to the absence of lactase enzymes in individuals that degrade the lactose into glucose and galactose.