Effect of Flammulina velutipes mushroom and soybean oil as a fat substitute on the quality of chicken sausage

Low-fat meat products are the major trends in developing healthier meat products. Attention is drawn that the animal fat is essential for emulsified meat products to enhance the stability, flavor, cooking yield, and texture. The low energy density and healthier ingredients can replace some or all of the fat in emulsified meat products according to some studies. As can be noted that compound fat substitutes, such as vegetable protein and carrageenan, vegetable oil and vegetable fibre, cellulose, and water, improved texture better than single fat substitutes. Nevertheless, the character of the emulsified meat product will eventually decrease as the amount of animal fat is reduced. Therewith, a little information is available about using Flammulina velutipes and soybean oil as fat alternatives in the manufacture of chicken meat products. The chicken sausage was used as the research object, and Flammulina velutipes and soybean oil were used as fat substitutes to study their effects on the quality of the chicken sausage. Chicken meat, salt and sodium polyphosphate were used for preparation of the sausages. Firstly, the mushroom and soybean oil were mixed in a ratio of 1:1.5, replacing the fats of 25 %, 50 %, 75 % and 100 % respectively. Then, cooking yield, folding test, pH, color, and sensory evaluation were measured. The experimental results showed that when adding Flammulina velutipes and soybean oil, the cooking yield, pH, L* and b* value were increased; folding test values for the 75 % and 100 % experimental groups decreased; chicken sausage with 50% fat replacement had the highest sensory score. In summary, replacing 50% of the fat in chicken sausage with Flammulina velutipes and soybean oil was optimal. The addition of Flammulina velutipes and soybean oil increased the brightness and yellowness of the chicken sausages. The low addition of Flammulina velutipes and soybean oil decreased the redness of the sausage, which increased when Flammulina velutipes and soybean oil completely replaced the fat Flammulina velutipes and soybean oil compound is a promising fat substitute in the development of low-fat meat products.