A process for the preparation of dried particles and flour of Jerusalem artichoke tubers

摘要

A process for the preparation of flour and dried particles from Jerusalem artichoke tubers comprises reducing the tubers to particle form of average dimensions 10 mm by 10 mm by 2 mm, and shortly thereafter exposing the particles to a first application of a dilute solution of sulphur dioxide to provide a sulphur dioxide residue on the particles of approximately 400 parts per million. The particles are then blanched and the blanched particles are then subjected to a second application of a dilute solution of sulphur dioxide to raise the sulphur dioxide residue on the particles to approximately 500 parts per million. The particles are dried in a six stage air drier to a moisture content of approximately 7.0%. The dried particles are ground to a fine particle powder is a pin mill.