What is chilling injury? Describe control of chilling injury. Differentiate between low temperature and high temperature disorders.

Chilling Injury: Understanding, Control, and Comparison

Introduction to Chilling Injury:
Chilling injury is a physiological disorder that occurs in certain fruits, vegetables, and other perishable food items when they are exposed to temperatures above freezing but still relatively low, typically between 0°C and 15°C (32°F and 59°F). This phenomenon primarily affects tropical and subtropical produce that are not adapted to cold temperatures. Chilling injury manifests as various symptoms such as discoloration, loss of flavor, accelerated decay, and tissue damage, ultimately leading to reduced shelf life and economic losses for producers and suppliers.

Control of Chilling Injury:
Several strategies are employed to control chilling injury and minimize its impact on perishable food items:

1. Temperature Management: Maintaining optimal storage temperatures is crucial. For sensitive fruits and vegetables, temperatures slightly above the chilling threshold should be avoided. Additionally, gradual cooling or warming processes can help acclimate produce to temperature changes, reducing the risk of injury.

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