Question

Which of the following is not useful in mango processing industry?

• A. Pulper Machine
• B. Retort Machine
• C. Roser Machine
• D. Dryer Machine

Hint:

Think of the standard mango processing workflow:
Washing \(\rightarrow\) Peeling \(\rightarrow\) Pulping (Pulper) \(\rightarrow\) Packaging \(\rightarrow\) Sterilization (Retort) or Dehydration (Dryer).
"Roser" is an irrelevant term and has no place in food processing.

Answer 1

The Correct Option is C

Step 1: Understanding the Concept:
Mango processing industries convert fresh mangoes into various stable, commercial products like pulp, puree, juice, canned slices, or dried mango leather (Aam papad).
Each processing line requires specialized food-engineering machinery designed for washing, peeling, pulping, thermal processing, or drying.

Step 2: Detailed Explanation:
Let us evaluate each of the machines listed to determine its utility in mango processing:
- Pulper Machine (A): Highly essential. It is used to separate the fibrous mango pulp from the skin and seed (stone).
This is the core machine used in making mango pulp, juice, and concentrates.
- Retort Machine (B): Essential. A retort is a pressure vessel used for thermal processing (sterilization) of canned mango slices or packaged pulp to destroy spoilage microorganisms and pathogens, ensuring long shelf-life.
- Dryer Machine (D): Essential. Used in producing dehydrated mango products, such as dried mango slices, mango powder (Amchur), or dried mango leather.
- Roser Machine (C): This is not a standard machine used in food processing or fruit preservation industries.
It is an irrelevant or non-existent term in the context of mango processing.
Therefore, a Roser Machine is not useful in the mango processing industry.

Step 3: Final Answer:
The correct option is (C).