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What is pre-cooling and describe its importance? Explain methods of pr

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What is pre-cooling and describe its importance? Explain methods of pre-cooling.


Posted on : 2023-01-30 01:47:04 | Author : IGNOU Academy | View : 27

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Word Count : 770

Pre-cooling is a process of rapidly reducing the temperature of freshly harvested fruits and vegetables to slow down the rate of respiration and metabolism, thus preserving the quality and prolonging the shelf life of the produce. Pre-cooling is an essential step in the post-harvest handling of fresh produce and is considered one of the most important measures for maintaining the quality and freshness of the produce during storage and transportation.

There are several methods of pre-cooling, including:

  1. Forced-air cooling: This method involves passing cool air over the produce to remove heat, using fans and refrigeration units. This method is widely used for pre-cooling fruits and vegetables, as it is efficient, fast, and cost-effective.

  2. Hydrocooling: This method involves immersing the produce in a flow of cold water to remove heat, which is then replaced with water at a lower temperature. This method is ideal for pre-cooling produce that is sensitive to physical damage, such as soft fruits and vegetables.

  3. Vacuum cooling: This method involves removing air from a sealed chamber and cooling the produce with cold air, vacuum, or refrigerants. This method is ideal for pre-cooling produce ___________ ____ ___________ _____ ________ ___ _______ _______ __________.
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Degree : DIPLOMA PROGRAMMES
Course Name : Diploma in Value Added Products from Fruits & Vegetables
Course Code : DVAPFV
Subject Name : Principles of Post Harvest Management of Fruits and Vegetables
Subject Code : BPVI 2
Year : 2023



IGNOU BPVI 2 Solved Assignment 2023
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