Preparation of imitation foods of a tender texture from proteinaceous extrudates

摘要

Vegetable protein extrudates substantially free from internal voids with a densely compacted stratum of laminae may be used to prepare imitation products which simulate the tender, succulent textural properties of freshly cooked natural products such as cooked mushrooms and shellfish products. The extrudates are prepared by the thermoplastic extrusion of proteinaceous feed material slurry containing more than 50% by weight water under conditions which prevent internal void formation and provide a highly laminated extrudate structure. The textural properties are imparted to the extrudate by retorting in the presence of pH 5.5-6.5 saline solutions.