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Learn about the freezing process for aquatic products in this comprehensive 37-minute lecture. Explore the differences between chilling and freezing, understand the effects and stages of freezing, and discover various freezing methods including air blast, contact plate, and spray plate freezing. Examine freezing time considerations and quality assessment techniques for frozen fish. Delve into issues such as dehydration, weight loss, and proper thawing methods. Gain insights into common problems like browning, blackening, and discoloration, along with essential dos and don'ts for handling frozen aquatic products.
Syllabus
Introduction
Chilling vs Freezing
Effects of Freezing
Stages of Freezing
Freezing Time
Types of Freezing
Air Blast Freezing
Contact Plate Freezing
Spray Plate Freezing
Quality Assessment of Frozen Fish
Dehydration and Weight Loss
Thawing Methods
Dos and Donts
Browning and Blackening
Green Discoloration
Black Discoloration
Taught by
Fisheries Professor