Method for acquiring one or a plurality of recyclable materials from seeds

Patent metadata

Field	Value
Publication number	US-10160776-B2
Application number	US-201515302586-A
Country	US
Kind code	B2
Filing date	Mar 25, 2015
Priority date	Apr 8, 2014
Publication date	Dec 25, 2018
Grant date	Dec 25, 2018

Abstract

A method for acquiring at least one or a plurality of recyclable materials, in particular phytic acid, from a native material quantity containing phytic acid or phytate is provided. The method involves providing a native, reduced material quantity containing phytic acid and/or phytate made from seeds containing phytic acid. The reduced material quantity is pre-treated in order to obtain a flowable alkaline, preferably alcoholic-alkaline mash. A solid phase, which has phytic acid and/or at least one phytate, is separated from the mash. Phytic acid and/or at least one phytate is isolated from the solid phase.

First claim

The invention claimed is:

1. A method for obtaining at least one or a plurality of recyclable materials from a native material quantity containing phytic acid or phytate, wherein the at least one recyclable material is phytic acid or at least one phytate, the method comprising:
Step A: supplying a native material quantity containing phytic acid or phytate from seeds containing phytic acid or phytate with hard, breakable shells as material quantity from the whole seeds or from seeds that have been at least partially de-oiled as expeller meal or as press cake left over as residue from oil extraction with a press;
Step B: if the material quantity from step A has not yet been comminuted, then comminuting the material quantity so that the shells are broken open;
Step C: dispersing the comminuted material quantity from step A) or B) with water or with an aqueous solution, wherein up to 8 parts maximum of water are added to one part of comminuted material quantity and wherein the water and the comminuted material quantity are stirred so as to give rise to a flowable mash or a dispersion;
Step D): adjusting a pH value of the mash from step C) in an alkaline range of pH >9.5;
Step E): adding a diluted water-soluble organic solvent to the mash D) subsequent to the adjustment of the pH of the mash in step D) in such a way that an alcohol concentration is reached that is less than 30% in order to detach the shells from the endosperm of the seeds/fruits;
Step F 1 ): separating a solid phase, which has the predominant fraction of the shells, from the mash from step E), in a centrifuge in a centrifugal field; and
Step F 2 ): isolating phytic acid or of a phytate from the solid phase of step F 1 ).

2. The method of claim 1 , wherein step F 2 ) comprises the sub-steps:
Step F 2 -A): mixing the solid phase from step F 1 ) with water and/or with diluted hydrochloric acid so as to give rise to a flowable shell-containing and water-saturated phase containing phytic acid and/or phytate whose pH value is shifted into an acidic range; and
Step F 2 -B): separating a solid phase, which has the predominant fraction of the shells, from a liquid phase containing phytic acid and/or phytate, and
F 2 -C): separating the phytic acid from the liquid phase containing phytic acid or phytate directly or after carrying out one or a plurality of additional steps.

3. The method of claim 1 , wherein the following sub-step is carried out between steps F 2 -B and F 2 -C:
F 2 -B 1 ): shifting the pH value of the fluid phase from step F 2 -B) into a range with a pH value of pH>5.

4. The method of claim 1 , further comprising:
Step G): shifting the pH value of the mash freed of shells from step F 1 ) into the range of pH=4.5 to pH=7.2; and
Step H): separating the shell-free mash whose pH value was shifted into the acidic range in step G) in at least one decanter or a separator into a plurality of phases, wherein one of these phases is a globulin-containing protein concentrate phase.

5. The method of claim 4 , wherein in step H), the following phase separation is carried out in one or two steps in a decanter or separator:
oil-containing phase with triglyceride content;
aqueous phase with albumin content; and
the protein concentrate phase.

6. The method of claim 5 , wherein in step H), the following phase separation into the following two recyclable material phases is carried out in one or two steps in a decanter or separator:
aqueous phase with albumin content and residual oil content; and
the protein concentrate phase.

7. The method of claim 4 , wherein the aqueous phase from step H) is filtered to build up the albumin concentration, in order to extract the albumin phase as a recyclable material.

8. The method of claim 4 , wherein a protein concentrate phase is extracted that is assigned to the values RAL 1015 or RAL 1013 in a RAL color classification scale or is a mixture of these two color tones.

9. The method of claim 1 , wherein an intermediate product produced before Step A is processed as the material quantity/source material no more than 31 days prior to Step A.

10. The method of claim 1 , wherein the material quantity in step A is produced from a cold-pressed rape press cake, which was pressed at a temperature less than 70° C.

11. The method of claim 1 , wherein one or a plurality of the separation steps of the preceding claims each take place in a 3-phase decanter or in at least two steps in 2-phase decanters.

Assignees

• Gea Mechanical Equipment Gmbh

Inventors

• Hruschka Steffen
• Ullmann Detlef
• Boszulak Wladislawa

Classifications

• C07F9/117 Primary

  with cycloaliphatic alcohols · CPC title

• C07F9/106

  Adducts, complexes, salts of phosphatides · CPC title

• A23L7/10 Primary

  Cereal-derived products · CPC title