Related Experiment Video
Updated: May 9, 2026

Preparation of High-Quality Fermented Fish Product
Published on: August 23, 2019
Synergistic effects of temperature and humidity changes on mechanistic quality deterioration of Salmon during frozen
Qiu Lin1, Lianghua Xie2, Boyu Song1
1Department of Food Science and Nutrition, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China.
Abstract:
Although -18 °C is the standard freezing temperature for aquatic products in household refrigerators, the dynamic regulation of temperature and humidity at this condition is frequently neglected. This study investigated the combined effects of different temperature fluctuation amplitudes, freezing rates, and humidity levels on the quality of salmon over 60 days of -18 °C frozen storage. Changes in color, total viable count (TVC), thiobarbituric acid reactive substances (TBARS), total volatile basic nitrogen (TVB-N), purine and biogenic amine contents, and alterations in myofibrillar proteins were measured throughout the storage period. In summary, greater temperature fluctuations, slower freezing rates, and lower humidity levels exacerbate the increase in physicochemical indicators such as TVC, TBARS, and TVB-N in salmon, while also raising purine and biogenic amine levels. These factors disrupted the muscle structural integrity, thereby hastening quality deterioration. This study provides theoretical guidance for the preservation of aquatic products in household refrigerators.
Related Concept Videos
Derivatives: Problem Solving
Factors Influencing Microbial Growth: Temperature
Physical Methods for Controlling Microbial Growth: Temperature
Responses to Heat and Cold Stress
Microbial Spoilage of Food
Effects of Temperature on Free Energy

