Question

The process in which the sterilizer is emptied and refilled between each process cycle are-

• A. Direct sterilization
• B. Conductive heating
• C. Concentric heating
• D. Batch sterilization

Hint:

Think of the difference between "batch" and "continuous" like cooking at home. Making soup in a single pot is a batch process. A factory assembly line where food is constantly moving through an oven is a continuous process.

Answer 1

The Correct Option is D

Step 1: Understanding the Concept:
The question describes a method of sterilization based on its operational flow. The key characteristic is that a discrete quantity of product is processed at a time, and the equipment is stopped, emptied, and refilled for the next cycle.
Step 2: Detailed Explanation:
(A) Direct sterilization: This refers to continuous processes where the heating medium (like steam) is directly mixed with the product (e.g., steam injection, steam infusion).
(B) Conductive heating: This is a mode of heat transfer where heat moves through a solid material. It is a physical principle, not a process cycle type.
(C) Concentric heating: This is not a standard term for a sterilization process.
(D) Batch sterilization: This is the correct term. In this process, a specific quantity or "batch" of the product (e.g., cans of evaporated milk) is loaded into a sterilizer (like a retort or autoclave). The sterilization cycle is run, and then the sterilizer is cooled, depressurized, and emptied. It is then refilled with the next batch. This is in contrast to a "continuous sterilization" process where the product flows through the sterilizer without stopping.
Step 3: Final Answer:
The process described is batch sterilization.