Select the option that is true regarding the following two statements labelled Assertion and Reason. Assertion (A): Protein isolates and concentrates are regularly used for the formulation of protein-rich food products. Reason (R): Protein isolates have a minimum protein content of 90% and protein concentrates have a minimum protein content of 65% on a dry weight basis.

Correct option is A

Protein isolates and concentrates are commonly used ingredients in the formulation of protein-enriched products, especially in health foods, sports nutrition, infant formulas, and functional foods.
They are derived from various sources such as soy, milk (whey and casein), peas, and other legumes.
Protein isolates and concentrates are preferred due to their high protein content, digestibility, and functional properties such as solubility, emulsification, and water-holding capacity.
Protein isolates are highly purified forms of protein with a minimum protein content of 90% on a dry weight basis. They are produced by removing most of the fat and carbohydrates.
Protein concentrates are less processed and typically contain a minimum of 65% protein, though the range may go up to 80%, depending on the source and method of processing.
The high protein content in both isolates and concentrates is the main reason they are used in protein-rich food product development.
Hence, both Assertion and Reason are factually correct, and the Reason correctly explains the Assertion.
Therefore, the correct answer is Option (a).