Effect of replacement of fish oil nanoliposomes on the technological and nutrition quality of beef burgers over storage at 4°C

The present study was conducted considering the importance of low-fat meat products such as hamburgers with reduced calories and the production of nanoliposomes carrying fish oil as a substitute for fat in the nutritional quality of hamburgers and the production of a beneficial product. For this purpose, the physicochemical properties of nanoliposomes were investigated and nanoliposomes contain fish oil and non-liposome fish oil (5 and 10%) were substituted for fat in the hamburger formulation. The values of pH, protein, fat, ash of the raw sample, caloric content, water holding capacity, moisture, and cooking efficiency were calculated. The particle size and poly dispersity index of liposome were reported as 507.3 nm and 0.567, respectively, with a uniform distribution. The zeta potential of liposomes was evaluated as -12.9 mV and the efficiency of nanocoating was 76.8%. The results showed that the use of nanoliposomes in burgers has increased the water holding capacity and cooking efficiency, as well as reducing the total calories and improving the protein and fat oxidation. Also, after the cooking process, it improved the texture and color. The sensory evaluation of the samples showed that the addition of nano liposomes contains fish oil in the burger received the highest score in terms of texture, taste, smell, color, and overall acceptance. According to the results, it is possible to use encapsulated fish oil in nanoliposomes with the aim of enriching meat burgers and producing burgers with fewer calories without unpleasant odors and tastes.