SUPERCRITICAL FLUID EXTRUSION PROCESS AND APPARATUS

摘要

A continuous process and apparatus for making bread and bread-like products using supercritical fluid extrusion are disclosed. The process is carried out in a dough mixer and extruder (120) into which supercritical (CO2) is injected to provide proofing of the product. Rising of the dough is produced by a combination of hydrodynamic expansion of air bubbles and diffusion of CO2 into said bubbles as the dough is extruded through an exit die (140), without the need for yeast. A filler material may be introduced into the core of the extruded product by a coextruder located within the extruder, to provide a continuous process for producing a coextruded filled product consisting of a fully cooked cereal-based outer core filled with a pumpable filling injected into the hollow center of the product.