use and installation for the production of starch and proteins from the flour of legumes, in particular, peas

摘要

PCT No. PCT/EP96/04766 Sec. 371 Date May 7, 1998 Sec. 102(e) Date May 7, 1998 PCT Filed Nov. 2, 1995 PCT Pub. No. WO97/17376 PCT Pub. Date May 15, 1997In order to obtain starch and proteins from the flour of legumes, in particular peas, the legume flour which has been treated with an aqueous decomposing agent, is fed into a first section (I) of a process line with several solids-liquids separation stages (6, 9, 10) for the purpose of extracting the proteins. The solid phase suspended in water from the final solids-liquids separation stage (10) of the first section (I) is then fed continually into a second section (II) of the process line with at least one separation stage (11) for separating the fibers from the starch and at least one solids-liquids separation stage for separating the starch from the liquid phase. The aqueous decomposing agent is formed from an alkaline concentrate (B) and the liquid phase separated by the starch in the second section of the process line. The alkaline concentrate (B) and the liquid phase separated by the starch in the second section (II) of the process line are fed into the first section (I) of the process line between the first and last solids-liquids separation stage (6 and 10, respectively). The liquid phase separated by the corresponding downstream solids-liquids separation stage (9, 10) of the first section (I) is fed back against the flow to suspend the solids phase fed into the upstream solids-liquids separation stage (6, 9). The liquid phase (6) separated by the first solids-liquids separation stage (6) of the first section (I) is drawn off from the process line for the purpose of separating the proteins.