The effect of storage time on the physicochemical and oxidation properties of the functional supplement powder containing marine bioactive compounds using liposome technique

Document Type : scientific research article

Authors

1 Dept. of Seafood Processing, Faculty of Fisheries and Environmental Sciences, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran.

2 Dept. of Food Science and Technology, Faculty of Food Science and Technology, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran

10.22069/japu.2023.21818.1828

Abstract

In this study, a functional supplement powder containing marine bioactive compounds (fish protein hydrolysate, fish oil and shrimp lipid extract) was prepared using encapsulation technique of nanoliposomes. The prepared nanoliposomes were coated with whey protein (WPC) and chitosan (CS) as mono/bilayer and composite, then dried by a freeze drier for 72 h. Analysis of proximate compounds, solubility, primary oxidation compounds and color evaluation of the treatments were investigated during 0, 1, 2, and 3 months of storage at 4 ◦C. According to the results, the type of coating, the storage time and the moisture level showed a significant effect on the physicochemical properties and oxidative stability of the treatments (P < 0.05). With increasing storage time, the amount of ash, moisture, solubility, primary oxidation compounds and brightness index of the treatments had a significant increase, but the amount of protein, fat and redness index of the treatments had a significant decrease (P < 0.05). Chitosan monolayer treatment and bilayer (WPC/CS) treatments showed the highest and lowest amount of changes in physicochemical properties and oxidative stability, respectively. Therefore, bilayer treatments had better protection than other treatments. According to the results, the presence of WPC as a wall compound had a favorable effect on the physicochemical properties of the treatments, while the presence of chitosan in combination with WPC as bilayers had a protective effect on the core materials and the oxidative stability of the treatments during storage time. Therefore, encapsulation of marine bioactive compounds in liposomal carriers and coating by whey protein as a mono/bilayer could be a useful approach to protect sensitive compounds in food products or as a nutritional supplement powder during storage.

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Journal of Utilization and Cultivation of Aquatics
Volume 14, Issue 1
April 2025
Pages 37-53

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