Effect of lipid oxidation on quality attributes and control technologies in dried aquatic animal products: a critical review

Aquatic animals are viewed as a good source of healthy lipids. Although drying is an effective method for the preservation of aquatic animal products (AAPs), the whole process is accompanied by lipid oxidation. This article reviews the main mechanism of lipid oxidation in the drying process. It also summarizes the effects of lipid oxidation on the quality of dried aquatic animal products (DAAPs), including nutrients, color, flavor, and hazard components, especially for those harmful aldehydes and heterocyclic amines. In addition, it concluded that moderate lipid oxidation contributes to improving the quality of products. Still, excessive lipid oxidation produces hazardous substances and induces health risks. Hence, to obtain high-quality DAAPs, some effective control technologies to promote/prevent lipid oxidation are introduced and deeply discussed, including salting, high-pressure processing, irradiation, non-thermal plasma technology, defatting treatments, antioxidants, and edible coating. A systematic review of the effect of lipid oxidation on quality attributes and control technologies in DAAPs is presented, and some perspectives are made for future research.

Automated summary

Aquatic animals are a good source of healthy lipids and drying is an effective preservation method for aquatic animal products (AAPs) despite the accompanying lipid oxidation. This article reviews the mechanism of lipid oxidation during drying and its effects on the quality of dried aquatic animal products (DAAPs), such as nutrients, color, flavor, and hazardous components like aldehydes and amines. It concludes that moderate lipid oxidation improves product quality, but excessive oxidation produces hazardous substances and health risks. Various control technologies to prevent lipid oxidation, such as salting, high-pressure processing, irradiation, defatting treatments, antioxidants, and edible coatings, are discussed.