JP3649538B2 - Method for removing metal components from food - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is a metal component from a food (e.g., potassium) metal ions (e.g., potassium ions) about the way of removing as.
[0002]
[Prior art]
An apparatus and method for removing metal ions from an aqueous solution by electrolysis by energization is disclosed in JP-A-7-289854, but a method and apparatus for removing metal components from food by electrolysis by energization has been proposed. Absent. In addition, there is a method of removing potassium (a metal component that is said to be harmful to a kidney disease person) from food by boiling the food.
[0003]
[Problems to be solved by the invention]
By the way, in the method of removing potassium from food by boiling food, the longer the food is boiled, the greater the amount of potassium removed, but the food texture and the like of food are worsened. Accordingly, an object of the present invention is to propose a method and an apparatus for removing metal components such as potassium from food by electrolysis by energization, and to remove metal components such as potassium from food without impairing the texture of food. There is.
[0004]
[Means for Solving the Problems]
The method for removing the metal component from the food according to the present invention includes immersing the food between the positive electrode and the negative electrode facing each other in the electrolytic solution in the electrolytic cell, and energizing the positive electrode and the negative electrode to perform the electrolysis. A method for removing a metal component from food, wherein the food is immersed in an electrolytic solution in a state of being contained in a bag-like metal ion permeable membrane. In this case, the electrolytic cell may have a diaphragm structure or a diaphragm structure. In the case of the diaphragm structure, the food is immersed in the electrolyte on the positive electrode side of the diaphragm. and Turkey is desirable. When the food is a liquid food, it is desirable to immerse the food in the electrolytic solution in a state of being accommodated in the metal ion permeable membrane as it is. Moreover, when the said foodstuff is a solid foodstuff, it is desirable to immerse the said foodstuff in the electrolyte solution in the state accommodated with the electrolyte solution in the said metal ion permeable film. In addition, electrolyte solution means the liquid which is harmless with respect to foodstuffs, such as a tap water and a diluted salt solution, and accept | permits electricity supply.
[0006]
[Operation and effect of the invention]
Oite to how to remove the metal components from the food product according to the invention, by electrolysis in current between the anode and the cathode, a metal component such as potassium from the food by dissolving the metal ions in the electrolyte anion Electrolytic removal can be performed on the electrode side, and metal components such as potassium can be removed from the food without impairing the texture of the food.
[0007]
Further, in the method for removing a metal component from a food according to the present invention, when the inside of the electrolytic cell has a diaphragm structure, and the food is immersed in the electrolytic solution on the positive electrode side of the diaphragm, the positive electrode Since the metal ions dissolved in the electrolyte from the food move to the negative electrode side of the diaphragm by energization between the negative electrode and the negative electrode, the metal components such as potassium can be efficiently removed from the food. .
[0008]
Further, in the method for removing a metal component from a food according to the present invention, in particular, since the food is immersed in an electrolytic solution in a state of being contained in a bag-like metal ion permeable membrane, the alteration of the food by the electrolytic solution is performed. Metal components such as potassium can be removed from food in a state in which (oxidation) is prevented.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a first embodiment of the present invention. A metal component removing apparatus according to this embodiment includes an electrolytic cell 12 containing an electrolytic solution 11 and having an open top, and an electrolytic cell 12 in the electrolytic cell 12. A positive electrode 13 and a negative electrode 14 which are arranged and face each other at a predetermined interval in which a solid food 20 such as raw vegetables is accommodated in the electrolytic solution 11, and a direct current power source which supplies current between the electrodes 13 and 14. The circuit 15 and a control device 16 that controls the circuit 15 are configured.
[0010]
1 configured as described above, the food 20 is immersed in the electrolytic solution 11 between the positive electrode 13 and the negative electrode 14 facing each other in the electrolytic solution 11 in the electrolytic cell 12. If the DC power supply circuit 15 is energized between the positive electrode 13 and the negative electrode 14 under the control of the control device 16 in such a state, electrolysis is performed between the positive electrode 13 and the negative electrode 14. It is possible to dissolve metal components such as potassium from the food 20 as metal ions in the electrolyte solution 11 and remove them to the negative electrode 14 side, and from the food 20 to the metal such as potassium without impairing the texture of the food 20 Components can be removed. It should be noted that the metal component such as potassium can be efficiently removed from the food 20 when the food 20 is displaced and positioned on the positive electrode side.
[0011]
FIG. 2 shows a second embodiment of the present invention. In the metal component removing apparatus of this embodiment, a diaphragm structure having a diaphragm 17 is adopted as the electrolytic cell 12, and the positive electrode of the diaphragm 17 is used. In the side, that is, the positive electrode chamber 18, the food 20 is stored so as to be immersed in the electrolytic solution 11. Other configurations are the same as those of the metal component removing apparatus of FIG.
[0012]
2, the food component 20 is immersed in the electrolyte 11 at the positive electrode side of the diaphragm 17, that is, the positive electrode chamber 18, and the positive electrode 13 and the negative electrode 14 are disposed. Since the metal ions dissolved in the electrolyte solution 11 from the food 20 by the current flow to the negative electrode side of the diaphragm 17, that is, to the negative electrode chamber 19 are accurately separated, the metal component such as potassium is efficiently removed from the food 20. Can be removed. 2, the food 20 is immersed in the electrolyte 11 in the negative electrode chamber 19, and the metal component such as potassium from the food 20 is energized between the positive electrode 13 and the negative electrode 14. It is also possible to remove.
[0013]
FIG. 3 shows a state in which the liquid food 21 is put in the bag-shaped metal ion permeable membrane 30. In this state, that is, in a state where the liquid food 21 is surrounded by the metal ion permeable membrane 30, FIG. 1 or 2 is immersed in the electrolytic solution 11 of the metal component removing apparatus and electrolyzed in the same manner as each of the metal component removing apparatuses described above, the alteration (oxidation) of the food 21 by the electrolytic solution 11 is prevented. In this state, metal components such as potassium can be removed from the food 21.
[0014]
On the other hand, FIG. 4 shows a state in which the solid food 20 is placed in the bag-shaped metal ion permeable membrane 30 together with the electrolytic solution 11 (preferably a saline solution that is thinner than the electrolytic solution 11). 1 is immersed in the electrolytic solution 11 of the metal component removing apparatus shown in FIG. 1 or 2 in the state surrounded by the metal ion permeable membrane 30, and electrolysis is performed in the same manner as each metal component removing apparatus described above. In this case, metal components such as potassium can be removed from the food 20 in a state in which alteration (oxidation) of the food 20 by the electrolytic solution 11 outside the metal ion permeable membrane 30 is prevented. The metal ion permeable membrane 30 into which the liquid food 21 or the solid food 20 is placed may be box-shaped or tube-shaped, and may be a sealed type or an open type.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram showing a first embodiment of a method and apparatus for removing metal components from food according to the present invention.
FIG. 2 is a schematic configuration diagram showing a first embodiment of a method and apparatus for removing metal components from food according to the present invention.
FIG. 3 is a diagram showing a state in which liquid food is placed in a metal ion permeable membrane.
FIG. 4 is a diagram showing a state in which a solid food is placed in a metal ion permeable membrane together with an electrolytic solution.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 11 ... Electrolyte solution, 12 ... Electrolyzer, 13 ... Positive electrode, 14 ... Negative electrode, 15 ... DC power supply circuit, 16 ... Control apparatus, 17 ... Separator, 18 ... Positive electrode chamber, 19 ... Negative electrode chamber, 20 ... Solid 21 ... Liquid food, 30 ... Metal ion permeable membrane.

Claims (5)

Food was immersed between positive electrode and negative electrode facing each other in the electrolytic solution in the electrolytic cell, a method for removing metallic components from the food by electrolysis and current between the anode and the cathode, said food A method for removing a metal component from a food product, wherein the metal component is immersed in an electrolytic solution in a state of being contained in a bag-like metal ion permeable membrane. The method for removing a metal component from a food according to claim 1, wherein the inside of the electrolytic cell has a non-diaphragm structure. Wherein the electrolytic cell is closed diaphragm structure, a method of removing the metal components from the food product according to claim 1, wherein the benzalkonium immersing the food product in the electrolyte at the anode side of the membrane. The food is a food liquid from a food according to claim 1, 2 or 3, wherein the Turkey be immersed in the electrolyte solution the food as it while housed in the metal ion-permeable membrane A method for removing metal components. 4. The food to metal according to claim 1, wherein the food is a solid food, and the food is immersed in the electrolytic solution in a state of being accommodated together with the electrolytic solution in the metal ion permeable membrane. A method of removing ingredients.

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