Mechanically deboned turkey residue (MDTR) is a turkey processing waste with a high collagen content. The objectives of this investigation were to produce gelatinous protein extracts from MDTR by heating at 55, 70 and 85 degrees C following an acid pre-treatment method and then to characterize them using physicochemical methods. The three extractions recovered 15.5% of total MDTR proteins and reduced the original weight of the MDTR by 55%. All the gelatinous protein extracts were rich in protein and the amino acids proline, glycine and alanine. The samples had higher mineral contents than a commercial gelatin sample, and exhibited similar molecular weight patterns. However, they had different colours, lower viscosities and gel strength than the commercial gelatin sample. The gelatinous protein extracts prepared at 55 and 70 degrees C had better buffering capacities and higher gel strengths than those produced at 85 degrees C.