The effect of adding eggshell membrane to emulsified meat models in terms of structure, water-holding, and texture.

This study was conducted to evaluate the effect of adding eggshell membrane (ESM), a by-product of the chicken egg processing industry, to emulsified meat models with different NaCl concentrations. The aim was to examine if ESM could facilitate a reduction in the amount of NaCl added to this type of product. The effects of ESM addition were investigated in terms of cooking loss, water distribution, color, and texture properties using a simplified meat emulsion model with no other additives than ESM. Emulsified meat samples were made with three different NaCl concentrations (0.5, 0.1, 1.5% w/w), without and with three levels of ESM (0.5, 1.0, 1.5% w/w). Addition of ESM reduced cooking loss (CL), improved texture, and increased redness. Effects of ESM were explained by structural changes in the protein matrix, as shown by two different histological methods. The addition of ESM explained 86% of the variation in low-field Nuclear Magnetic...