Understanding the Concept:
Certain medicinal plants contain enzymes that assist in the digestion of proteins, carbohydrates, and fats. Such enzymes are frequently used in pharmaceutical preparations to improve digestion and treat digestive disorders.
Papaya is one of the most important plant sources of proteolytic enzymes. The enzyme papain obtained from papaya latex possesses strong protein-digesting properties and has extensive pharmaceutical and industrial applications.
Step 1: Understand the role of digestive enzymes.
Digestive enzymes catalyze the breakdown of complex food molecules into simpler absorbable forms.
Proteolytic enzymes specifically hydrolyze proteins into peptides and amino acids.
Examples include:
• Papain
• Bromelain
• Pepsin
• Trypsin
These enzymes facilitate digestion and improve nutrient absorption.
Step 2: Examine Papaya as a source of enzymes.
Papaya is obtained from Carica papaya.
The latex of unripe fruits contains papain and chymopapain.
Papain possesses powerful proteolytic activity and can digest proteins even under a wide range of pH conditions.
Because of this property, papain is used:
• As a digestive aid
• In enzyme preparations
• In meat tenderization
• In pharmaceutical formulations
Step 3: Evaluate Rauwolfia.
Rauwolfia contains alkaloids such as reserpine and ajmaline.
Its primary medicinal uses involve antihypertensive and tranquilizing activities rather than digestive enzyme production.
Therefore, it is not the correct answer.
Step 4: Evaluate Cinchona.
Cinchona bark contains quinoline alkaloids including quinine and quinidine.
It is mainly associated with antimalarial activity and not digestive enzymes.
Hence, this option is incorrect.
Step 5: Evaluate Cinnamon.
Cinnamon contains volatile oils and aromatic compounds used as flavoring and carminative agents.
It does not serve as a source of proteolytic digestive enzymes.
Therefore, it cannot be the correct answer.
Step 6: Identify the drug used for aiding digestion.
Among all options, Papaya is the only herbal drug known for containing papain, a proteolytic enzyme used in digestion.
Conclusion:
Papaya contains papain, a proteolytic enzyme widely used as a digestive aid. Therefore, the correct answer is Option (B).