68. Which one of the following options shows the correct pairing of the enzyme with its corresponding application?

P.Papain                   i. Gluten complex reduction

Q.Bromelain            ii. Immuno assay marker

enzyme

R.Peroxidase          iii. Maltose syrup

preparation

S.β-amylase           iv. Meat tenderizer

(A) P-iv, Q-i, R-ii, S-iii

(B) P-iv, Q-iii, R-i, S-ii

(C) P-iv, Q-i, R-iii, S-ii

(D) P-i, Q-ii, R-iv, S-iii

Match the Enzymes with Their Industrial Applications

Correct Answer

(A) P-iv, Q-i, R-ii, S-iii

Introduction

Enzymes are highly specific biological catalysts that have become indispensable in modern biotechnology, food processing, pharmaceuticals, diagnostics, and industrial manufacturing. Their remarkable catalytic efficiency, substrate specificity, and environmentally friendly nature make them superior alternatives to conventional chemical catalysts. Different enzymes perform specialized functions based on their catalytic mechanisms, allowing them to be used in diverse applications ranging from food processing and meat tenderization to clinical diagnostics and biopharmaceutical production.

Among the most widely used industrial enzymes are papain, bromelain, peroxidase, and β-amylase. Papain and bromelain are plant-derived proteolytic enzymes extensively used in the food industry, whereas peroxidase serves as an important reporter enzyme in diagnostic immunoassays. β-Amylase plays a crucial role in starch processing by producing maltose-rich syrups. Understanding the industrial applications of these enzymes is an important topic in CSIR NET Life Sciences, GATE Biotechnology, IIT JAM, CUET PG, DBT BET, and university examinations, where enzyme applications are frequently tested.

Understanding the Concept Behind the Question

Each enzyme possesses a characteristic catalytic activity that determines its industrial application.

• Papain is a protease obtained from papaya latex and is widely used as a meat tenderizer.
• Bromelain is a pineapple protease capable of degrading gluten proteins and is used for gluten complex reduction.
• Peroxidase, particularly horseradish peroxidase (HRP), is extensively used as a marker enzyme in immunoassays such as ELISA.
• β-Amylase hydrolyzes starch by releasing maltose units and is therefore used in maltose syrup production.

Matching these applications correctly identifies the correct option.

Analysis of Papain (P)

Papain is a cysteine protease extracted from the latex of Carica papaya.

Its proteolytic activity hydrolyzes collagen and muscle proteins, making tough meat softer and easier to digest.

For this reason, papain is extensively used in the food industry as a meat tenderizer.

Therefore,

P → iv (Meat tenderizer)

Analysis of Bromelain (Q)

Bromelain is a mixture of proteolytic enzymes isolated from pineapple (Ananas comosus).

It hydrolyzes gluten proteins and is widely employed to reduce gluten complexes in food processing, bakery products, and specialized nutritional formulations.

Therefore,

Q → i (Gluten complex reduction)

Analysis of Peroxidase (R)

Peroxidases catalyze oxidation reactions using hydrogen peroxide.

Among them, Horseradish Peroxidase (HRP) is one of the most widely used reporter enzymes in ELISA, Western blotting, immunohistochemistry, and other immunoassays because it produces easily detectable colored, fluorescent, or chemiluminescent products.

Therefore,

R → ii (Immunoassay marker enzyme)

Analysis of β-Amylase (S)

β-Amylase is an exo-acting enzyme that hydrolyzes α(1→4) glycosidic bonds from the non-reducing ends of starch molecules.

Its principal product is maltose, making it indispensable in the manufacture of maltose syrup, brewing, baking, and starch-processing industries.

Therefore,

S → iii (Maltose syrup preparation)

Verification of the Correct Pairing

The correct enzyme-application pairs are:

• Papain → Meat tenderizer (iv)
• Bromelain → Gluten complex reduction (i)
• Peroxidase → Immunoassay marker enzyme (ii)
• β-Amylase → Maltose syrup preparation (iii)

Thus, the complete matching is:

P-iv, Q-i, R-ii, S-iii

which corresponds to Option (A).

Industrial Importance of These Enzymes

Plant proteases such as papain and bromelain have transformed food processing by improving meat quality, modifying protein structures, and producing specialized food products. Horseradish peroxidase (HRP) has become one of the most valuable enzymes in diagnostic biotechnology because it enables sensitive detection of antibodies and antigens in immunological assays. β-Amylase plays a major role in starch conversion industries by producing maltose-rich syrups used in confectionery, brewing, and pharmaceutical formulations. Collectively, these enzymes illustrate the enormous commercial value of enzyme biotechnology.

High-Yield Points

• Papain is obtained from papaya latex.
• Papain is used as a meat tenderizer.
• Bromelain is extracted from pineapple.
• Bromelain is used for gluten complex reduction.
• Horseradish peroxidase (HRP) is the most common ELISA marker enzyme.
• β-Amylase releases maltose from starch.
• β-Amylase is used in maltose syrup production.

Frequently Asked Questions

Why is papain used as a meat tenderizer?

Papain hydrolyzes muscle proteins and connective tissue proteins such as collagen, making meat softer and more tender.

Why is peroxidase used in ELISA?

Horseradish peroxidase catalyzes color-producing reactions in the presence of hydrogen peroxide, allowing sensitive detection of antigen-antibody interactions.

Why is β-amylase important in starch processing?

β-Amylase sequentially removes maltose molecules from starch, making it ideal for producing maltose-rich syrups used in food and beverage industries.

Key Takeaways

Industrial enzymes are selected according to their catalytic specificity and commercial applications. Papain, a protease from papaya, is widely used as a meat tenderizer. Bromelain, obtained from pineapple, helps in gluten complex reduction. Peroxidase, particularly horseradish peroxidase, serves as an important marker enzyme in immunoassays, while β-amylase converts starch into maltose for maltose syrup production. Correctly matching these enzyme applications leads to Option (A).

Final Answer

Correct Option: (A) P-iv, Q-i, R-ii, S-iii

Explanation

Papain is a proteolytic enzyme obtained from papaya and is extensively used as a meat tenderizer by hydrolyzing muscle proteins. Bromelain, isolated from pineapple, is used for gluten complex reduction because of its protein-degrading activity. Peroxidase, particularly horseradish peroxidase (HRP), functions as a marker enzyme in immunoassays such as ELISA and Western blotting. β-Amylase hydrolyzes starch to produce maltose, making it an important enzyme in maltose syrup preparation. Therefore, the correct matching is P-iv, Q-i, R-ii, S-iii, corresponding to Option (A).