JP6842083B2 - How to color food - Google Patents
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- JP6842083B2 JP6842083B2 JP2016203248A JP2016203248A JP6842083B2 JP 6842083 B2 JP6842083 B2 JP 6842083B2 JP 2016203248 A JP2016203248 A JP 2016203248A JP 2016203248 A JP2016203248 A JP 2016203248A JP 6842083 B2 JP6842083 B2 JP 6842083B2
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- 235000013305 food Nutrition 0.000 title claims description 34
- 238000004040 coloring Methods 0.000 claims description 39
- 229910021645 metal ion Inorganic materials 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 22
- 239000008151 electrolyte solution Substances 0.000 claims description 11
- 239000010936 titanium Substances 0.000 claims description 11
- 229910052719 titanium Inorganic materials 0.000 claims description 11
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 10
- 229910052710 silicon Inorganic materials 0.000 claims description 10
- 239000010703 silicon Substances 0.000 claims description 10
- 239000003086 colorant Substances 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 238000005868 electrolysis reaction Methods 0.000 claims description 5
- 239000000576 food coloring agent Substances 0.000 claims description 5
- 239000002738 chelating agent Substances 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 4
- 229910052709 silver Inorganic materials 0.000 claims description 4
- 239000004332 silver Substances 0.000 claims description 4
- 235000000346 sugar Nutrition 0.000 claims description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- 150000008163 sugars Chemical class 0.000 claims description 2
- 235000012907 honey Nutrition 0.000 description 12
- -1 honey Chemical class 0.000 description 8
- 239000002608 ionic liquid Substances 0.000 description 8
- LCKIEQZJEYYRIY-UHFFFAOYSA-N Titanium ion Chemical compound [Ti+4] LCKIEQZJEYYRIY-UHFFFAOYSA-N 0.000 description 7
- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical compound [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- 229910001431 copper ion Inorganic materials 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000000844 anti-bacterial effect Effects 0.000 description 3
- 150000004696 coordination complex Chemical class 0.000 description 3
- 238000010828 elution Methods 0.000 description 3
- 235000013373 food additive Nutrition 0.000 description 3
- 239000002778 food additive Substances 0.000 description 3
- 238000002372 labelling Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000001054 red pigment Substances 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 241000512259 Ascophyllum nodosum Species 0.000 description 2
- 241000193155 Clostridium botulinum Species 0.000 description 2
- 235000008429 bread Nutrition 0.000 description 2
- 239000006103 coloring component Substances 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000000796 flavoring agent Substances 0.000 description 2
- 235000019634 flavors Nutrition 0.000 description 2
- 239000000989 food dye Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- PJVXUVWGSCCGHT-ZPYZYFCMSA-N (2r,3s,4r,5r)-2,3,4,5,6-pentahydroxyhexanal;(3s,4r,5r)-1,3,4,5,6-pentahydroxyhexan-2-one Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O.OC[C@@H](O)[C@@H](O)[C@H](O)C(=O)CO PJVXUVWGSCCGHT-ZPYZYFCMSA-N 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 241001474374 Blennius Species 0.000 description 1
- 206010016952 Food poisoning Diseases 0.000 description 1
- 208000019331 Foodborne disease Diseases 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- 244000294411 Mirabilis expansa Species 0.000 description 1
- 235000015429 Mirabilis expansa Nutrition 0.000 description 1
- 235000010627 Phaseolus vulgaris Nutrition 0.000 description 1
- 244000046052 Phaseolus vulgaris Species 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- 244000269722 Thea sinensis Species 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 235000021466 carotenoid Nutrition 0.000 description 1
- 150000001747 carotenoids Chemical class 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000536 complexating effect Effects 0.000 description 1
- 238000010668 complexation reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 231100000206 health hazard Toxicity 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 235000013536 miso Nutrition 0.000 description 1
- 235000012149 noodles Nutrition 0.000 description 1
- 229920001542 oligosaccharide Polymers 0.000 description 1
- 150000002482 oligosaccharides Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 235000019685 rice crackers Nutrition 0.000 description 1
- 235000014102 seafood Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 235000013616 tea Nutrition 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 239000012463 white pigment Substances 0.000 description 1
Landscapes
- Coloring Foods And Improving Nutritive Qualities (AREA)
Description
本発明は食品の着色方法に関するものである。 The present invention relates to a method for coloring foods.
自社商品と他社商品とを差別化して市場競争力を高めようとする場合、食品では着色することも差別化の一手段と考えられている。
例えば、特許文献１には、食用色素の一種である結晶性カロテノイド色素を使用して蒲鉾等を着色することが提案されている。
When trying to differentiate our products from those of other companies to enhance market competitiveness, coloring foods is considered to be one of the means of differentiation.
For example, Patent Document 1 proposes coloring Kamaboko and the like using a crystalline carotenoid pigment, which is a kind of food coloring.
而して、食品の場合には、その食品の地色がベースとなり、その上に被せて着色するので、食品の種類によっては鮮やかに発色せずくすんだ発色となる。また、食用色素では合成でも天然でも経時的に褪色する問題が付きまとっている。更に、食用色素は、粉末や懸濁液として市場で提供されているが、粒径が大きいこともあって食品に均一に付着させることが難しく、食品の形状によっては色むらが生じ易い。加えて、食品添加物としての取り扱いになるので、その旨の表示が義務付けられるが、昨今の自然志向の高まりから添加物の表示に敏感になっている消費者も多い。 Thus, in the case of food, the ground color of the food is used as the base, and the food is overlaid with color, so that the color is not vivid and dull depending on the type of food. In addition, food coloring has the problem of fading over time, both synthetically and naturally. Further, although food colorings are offered on the market as powders or suspensions, it is difficult to uniformly adhere them to foods due to their large particle size, and color unevenness is likely to occur depending on the shape of the foods. In addition, since it is treated as a food additive, labeling to that effect is obligatory, but many consumers are becoming more sensitive to labeling of additives due to the recent increase in nature consciousness.
本発明は上記従来の問題点に着目して為されたものであり、着色成分として鮮やかな発色を可能とし、褪色し難く、色ムラなく、しかも食品添加物としての取り扱いにならないものを利用して食品に綺麗に着色できる、新規且つ有用な着色方法を提供することを、その目的とする。 The present invention has been made by paying attention to the above-mentioned conventional problems, and uses a coloring component which enables vivid color development, is hard to fade, has no color unevenness, and is not handled as a food additive. The purpose is to provide a new and useful coloring method that can beautifully color foods.
本発明は上記課題を解決するためになされたものであり、請求項１の発明は、食品に、チタン、銀または銅の金属イオンを着色剤として使用し、その呈色で着色する食品の着色方法であって、前記着色剤にキレート剤を含ませ、電解により溶出した金属イオンを錯体化した上で着色し、前記キレート剤は、電解隔膜を構成するケイ素で構成されていることを特徴とする着色方法である。
請求項２の発明は、請求項１に記載の食品の着色方法において、流動性食品を電解液に入れ、金属イオンを溶出させると共に、その金属イオンでそのまま当該食品を着色することを特徴とする着色方法である。
請求項３の発明は、請求項２に記載の食品の着色方法において、流動性食品として糖類を使用することを特徴とする着色方法である。
The present invention has been made to solve the above problems, and the invention of claim 1 uses a metal ion of titanium, silver or copper as a colorant in a food and colors the food by its coloring. The method is characterized in that the colorant is impregnated with a chelating agent, metal ions eluted by electrolysis are complexed and then colored, and the chelating agent is composed of silicon constituting an electrolytic diaphragm. It is a coloring method to be used.
The invention of claim 2 is characterized in that, in the method for coloring a food according to claim 1 , a fluid food is put into an electrolytic solution to elute metal ions, and the food is colored as it is with the metal ions. It is a coloring method.
The invention of claim 3 is a coloring method according to claim 2 , wherein sugar is used as a fluid food.
本発明の着色方法によれば、金属イオンを着色成分として使用しているので、ベース色として利用でき、褪色し難く、かつ食品添加物としての取り扱いにはならないので、食品に着色しても、添加物の表示は必要ない。 According to the coloring method of the present invention, since metal ions are used as a coloring component, it can be used as a base color, it is difficult to fade, and it is not handled as a food additive. No labeling of additives is required.
本発明の実施の形態に係る食品の着色方法について以下に説明する。
≪着色対象とする食品≫
特に限定されず、はちみつ、果糖ぶどう糖液、異性化糖、オリゴ糖、ショ糖等の糖類、カステラ、スポンジケーキ、せんべい、きなこ、豆、みそ、麺類、茶葉、食肉、魚介類、昆布等の海藻類など、多種多様なものが想定される。
The method for coloring foods according to the embodiment of the present invention will be described below.
≪Foods to be colored≫
Not particularly limited, sugars such as honey, fructose-glucose solution, isomerized sugar, oligosaccharide, sucrose, castella, sponge cake, rice crackers, kinako, beans, miso, noodles, tea leaves, meat, seafood, seaweed such as kelp. A wide variety of things such as kelp are assumed.
≪金属イオン（着色剤）≫
種類は特に限定されないが、チタンイオン、銀イオン、銅イオン等が例示される。
着色する色は金属イオンの種類により異なり、チタンイオンの場合には白色、銀イオンの場合にはメタル色、銅イオンの場合には緑色になる。
なお、食品の地色がベースとなるので、その地色によっては着色した色の発色がくすむ場合がある。そのようなときには、チタンイオン等で白色に着色して、その白色をベースとして使用すれば、その後に食用色素を使って着色した色、例えば赤色の発色を鮮やかにすることができる。食用色素は上記したように添加物としての取り扱いになっているので、併用すれば添加物使用になるが、発色を優先する場合にはこのような利用も考えられる。
≪Metal ion (colorant) ≫
The type is not particularly limited, and examples thereof include titanium ion, silver ion, and copper ion.
The color to be colored differs depending on the type of metal ion, and is white in the case of titanium ion, metal color in the case of silver ion, and green in the case of copper ion.
Since the ground color of food is the base, the colored color may be dull depending on the ground color. In such a case, if the color is colored white with titanium ions or the like and the white color is used as a base, then the color colored with the food coloring, for example, red can be vividly developed. Since food dyes are treated as additives as described above, they can be used as additives when used in combination, but such use is also conceivable when color development is prioritized.
また、金属イオンは殺菌作用も認められているものもあり、少なくとも、上記で列記した金属イオンはいずれも程度の差はあるが殺菌作用が認められている。食品の汚染は、それを摂取した者の健康被害をもたらすことから、食品の一般生菌数、大腸菌群を測定して汚染度合を評価している。更に、はちみつには食中毒の元となるボツリヌス菌が混入されている場合があることから、特に乳児に対しては摂取を控えるよう指導されている。このような状況下において、本発明を利用すれば、食品を金属イオンで着色すると共に、殺菌効果を享受することも可能になっている。 In addition, some metal ions are also found to have a bactericidal action, and at least all of the metal ions listed above are found to have a bactericidal action to varying degrees. Since food contamination causes health hazards to those who ingest it, the degree of contamination is evaluated by measuring the general viable cell count and coliform bacteria of food. In addition, honey may contain Clostridium botulinum, which causes food poisoning, so infants are instructed to refrain from ingesting it. Under such circumstances, by utilizing the present invention, it is possible to color foods with metal ions and enjoy a bactericidal effect.
≪金属イオンの生成方法≫
金属イオンを生成し、この生成した金属イオンを食品に付着させる。
金属イオンは通常は電解により生成する。陽極（プラス極）を金属イオンの供給源として利用し、電解処理により金属イオンを陽極から溶出させ、電解液の中に溜めていく。なお、電解液は、通常は水を使う。
電解槽は、電解隔壁で陽極側と陰極側とを仕切って短絡を防止するのが好ましい。電解隔膜は、焼成したセラミック製が典型的なものであり、アルミナ系やケイ素系があるが、ケイ素を含むものを利用することが好ましい。ケイ素を利用して錯体化することで、食品へ付着し易くなる。
≪Method of generating metal ions≫
Metal ions are generated, and the generated metal ions are attached to food.
Metal ions are usually generated by electrolysis. The anode (positive electrode) is used as a source of metal ions, and the metal ions are eluted from the anode by electrolytic treatment and accumulated in the electrolytic solution. Water is usually used as the electrolytic solution.
It is preferable that the electrolytic cell is separated from the anode side and the cathode side by an electrolytic partition wall to prevent a short circuit. The electrolytic diaphragm is typically made of calcined ceramic, and includes alumina type and silicon type, but it is preferable to use one containing silicon. By complexing using silicon, it becomes easy to adhere to food.
電解槽の単純な構成例は、陽極と陰極の間を電解隔膜で仕切って、その間に直流電流を印加することになる。
しかしながら、ケイ素の溶出を促進するような電解槽を利用することが推奨される。
例えば、本出願人が先に出願した出願に係る特開平１０−２７２４７１号公報では、複数の電極室を電解隔膜で仕切って設け、直流と交流を重畳印加する電解槽が記載されている。電解隔膜としてケイ素系で構成したものを使用することで、金属錯体が生成されることが教示されているが、この方式によれば、ケイ素の溶出が促進される。
In a simple configuration example of the electrolytic cell, the anode and the cathode are partitioned by an electrolytic diaphragm, and a direct current is applied between them.
However, it is recommended to use an electrolytic cell that promotes the elution of silicon.
For example, Japanese Patent Application Laid-Open No. 10-272471 according to an application filed earlier by the present applicant describes an electrolytic cell in which a plurality of electrode chambers are partitioned by an electrolytic diaphragm and an electric current and an alternating current are superposed and applied. It is taught that a metal complex is formed by using a silicon-based electrolytic diaphragm, but this method promotes the elution of silicon.
図１は、上記した電解槽の模式図である。
この電解槽では、容器１内に、別の容器が配置された二重槽構造になっており、この内側の容器はケイ素系の電解隔膜３で形成されている。この内側の容器内では更に同じ電解隔膜３により仕切られて２つの電極室が作られている。従って、電解隔膜３の利用により、合計で３つの電解室が形成されている。電解隔膜３は珪藻土を素材としており、ケイ素系になっている。
３つの電解室には、それぞれ、内部電極１１、外部電極１２、第３電極１３が配されている。
内部電極１１と第３電極１３の電極が着色に使用する金属イオン、例えばチタンイオンの供給源となっている。
FIG. 1 is a schematic view of the above-mentioned electrolytic cell.
This electrolytic cell has a double tank structure in which another container is arranged in the container 1, and the inner container is formed of a silicon-based electrolytic diaphragm 3. Inside the inner container, two electrode chambers are further partitioned by the same electrolytic diaphragm 3. Therefore, a total of three electrolytic chambers are formed by using the electrolytic diaphragm 3. The electrolytic diaphragm 3 is made of diatomaceous earth and is silicon-based.
An internal electrode 11, an external electrode 12, and a third electrode 13 are arranged in each of the three electrolytic chambers.
The electrodes of the internal electrode 11 and the third electrode 13 serve as a source of metal ions used for coloring, for example, titanium ions.
内部電極１１と外部電極１２との間では、交流電流が印加される。具体的には、内部電極１１と外部電極１２の間には、商用電源から供給された交流電流が電圧調整器によって電圧調整され、ブロッキングコンデンサによって波形が先鋭化された上で印加される。
また、内部電極１１と外部電極１２の間と、内部電極１１と第３電極１３の間には、直流電流が印加される。具体的には、内部電極１１と外部電極１２の間と、内部電極１１と第３電極１３の間には、商用電源から供給された交流電流が整流器によって直流変換されて生成された直流電流が択一的に印加される。極性は反転可能であるが、内部電極１１を固定的に陽極とすることで、上記の交流電流との重畳通電中に、内部電極１１の電極室内の電解液に金属イオンが電極から活発に溶出して、金属錯体として溜まっていく。
An alternating current is applied between the internal electrode 11 and the external electrode 12. Specifically, an alternating current supplied from a commercial power source is voltage-adjusted by a voltage regulator between the internal electrode 11 and the external electrode 12, and the waveform is sharpened by a blocking capacitor before being applied.
Further, a direct current is applied between the internal electrode 11 and the external electrode 12 and between the internal electrode 11 and the third electrode 13. Specifically, a direct current generated by converting an alternating current supplied from a commercial power source into a direct current is generated between the internal electrode 11 and the external electrode 12 and between the internal electrode 11 and the third electrode 13. It is applied alternately. Although the polarity can be reversed, by using the internal electrode 11 as a fixed anode, metal ions are actively eluted from the electrode into the electrolytic solution in the electrode chamber of the internal electrode 11 during the superposition energization with the above-mentioned AC current. Then, it accumulates as a metal complex.
≪金属イオンの着色方法≫
上記で製造した金属イオン液を食品に接触させる。
パン等の固形物であれば、金属イオン液を散布したり、浸漬したりする。
また、はちみつのように電解液に可溶で、しかも電解の邪魔にならない、すなわち通電性を維持できるものであれば、上記した電解液に入れておき、金属イオンの生成と並行して着色を行うこともできる。
≪Coloring method of metal ions≫
The metal ionic liquid produced above is brought into contact with food.
If it is a solid substance such as bread, the metal ion solution is sprayed or soaked.
Also, if it is soluble in the electrolytic solution like honey and does not interfere with the electrolysis, that is, it can maintain the electrical conductivity, it is placed in the above-mentioned electrolytic solution and colored in parallel with the generation of metal ions. You can also do it.
はちみつには、ボツリヌス菌が混入している場合があり、Ｂｒｉｘが高い故に休眠状態になっている。従って、着色しようとして金属イオン液に浸漬したりすると、Ｂｒｉｘが下がり休眠状態が解除される恐れがあるが、はちみつは有利なことに電解の邪魔にはならないので、上記したように、電解液にはちみつを入れて、金属イオンの生成と並行して着色を行うことができる。すなわち、Ｂｒｉｘの低下を抑えつつ着色できる。従って、本発明の方法は、はちみつの着色に非常に有利な方法になっている。 Honey may be contaminated with Clostridium botulinum and is dormant due to its high Brix. Therefore, if it is immersed in a metal ionic liquid for coloring, Brix may be lowered and the dormant state may be released, but honey does not advantageously interfere with electrolysis, so as described above, it is used in the electrolytic solution. Honey can be added and colored in parallel with the generation of metal ions. That is, it is possible to color while suppressing the decrease of Brix. Therefore, the method of the present invention is a very advantageous method for coloring honey.
金属イオンはパン等に付着すれば速やかに還元されて析出するが、金属錯体になっていれば食品により付着し易くなる。従って、均一にムラなく綺麗に着色できる。
食用色素は、粉末状や液状があるが、白色着色用は酸化チタンの粉末が主流である。この粉末を使用する場合には、通常、水に懸濁させて懸濁液にし、その懸濁液に浸漬または吹付けて乾燥するが、経時的に粉末が沈殿していくので、液濃度を一定に維持することは難しい。しかしながら、チタンイオンを着色剤とすれば、液濃度は一定に維持されるので、上記のような問題は生じない。従って、本発明の方法は、白色に着色したいときに非常に有利な方法になっている。
If the metal ion adheres to bread or the like, it is rapidly reduced and precipitated, but if it is a metal complex, it is more likely to adhere to food. Therefore, it is possible to color evenly and neatly.
Food dyes are available in powder or liquid form, but titanium oxide powder is the mainstream for white coloring. When this powder is used, it is usually suspended in water to form a suspension, which is then immersed or sprayed to dry, but the powder precipitates over time, so the liquid concentration should be adjusted. It is difficult to keep it constant. However, if titanium ions are used as a colorant, the liquid concentration is maintained constant, so that the above problems do not occur. Therefore, the method of the present invention is a very advantageous method when it is desired to color white.
更に、香料によっては水溶性や分散性があるので、そのような香料を金属イオン液に入れておけば、着色と共に香付けもでき、食品の商品としての付加価値を高められる。 Furthermore, since some flavors are water-soluble or dispersible, if such flavors are added to a metal ionic liquid, they can be colored and flavored, and the added value of food products can be enhanced.
実施例１（はちみつサンプルの着色）
はちみつを処理対象とし、チタンイオンで白色着色した。
図１に示す電解槽を用いて、内部電極１１と、第３電極１３は金属チタンで構成し、外部電極１２は不溶性電極で構成した。電解液は水にした。
内部電極１１と外部電極１２との間では、交流電流（５０Ｈｚ、１００Ｖ、２０Ａ）を供給した。
また、内部電極１１と外部電極１２の間と、内部電極１１と第３電極１３の間には、択一的に、直流電流（１００Ｖ、０．７Ａ）を供給した。また、外部電極１２に対する通電時間を３００秒、第３電極１３に対する通電時間を４０秒として、交互に切り替えた。
視覚検査により電解液が十分な濃度になったと判断した時点で、すなわち所定の時間経過後に上記試験を終了した。定常状態に戻った後に測定したところ、内部電極１１のチタンイオンは１０ｐｐｍ程度で、ｐＨは４．１６であった。
Example 1 (Coloring of honey sample)
Honey was treated and colored white with titanium ions.
Using the electrolytic cell shown in FIG. 1, the internal electrode 11 and the third electrode 13 were made of metallic titanium, and the external electrode 12 was made of an insoluble electrode. The electrolyte was water.
An alternating current (50 Hz, 100 V, 20 A) was supplied between the internal electrode 11 and the external electrode 12.
Further, a direct current (100 V, 0.7 A) was selectively supplied between the internal electrode 11 and the external electrode 12 and between the internal electrode 11 and the third electrode 13. Further, the energization time for the external electrode 12 was set to 300 seconds, and the energization time for the third electrode 13 was set to 40 seconds, and the switching was performed alternately.
The above test was completed when it was determined by visual examination that the electrolytic solution had a sufficient concentration, that is, after a predetermined time had elapsed. When measured after returning to the steady state, the titanium ion of the internal electrode 11 was about 10 ppm, and the pH was 4.16.
上記の実験条件下で、はちみつを内部電極１１に入れておき、チタンイオンの溶出及び錯体化と着色を並行して実施した。
着色後に電解槽から取出し、一部は、更に、食用の赤色色素で着色した。はちみつの着色結果は、コントロールも含めて、図２の写真に示す通りであった。
Under the above experimental conditions, honey was placed in the internal electrode 11, and titanium ion elution, complexation and coloring were carried out in parallel.
After coloring, it was taken out from the electrolytic cell, and a part was further colored with an edible red pigment. The coloring result of honey, including the control, was as shown in the photograph of FIG.
図２で示す４つのサンプルは、以下のものである。
改質：チタンイオンによる白色着色
コントロール＋着色料による白色着色
改質＋着色：チタンイオンによる白色着色後、赤色色素で着色
コントロール＋着色料による白色色素後、赤色色素で着色
The four samples shown in FIG. 2 are as follows.
Modification: White coloring control with titanium ion + white coloring with colorant Modification + coloring: White coloring with titanium ion, then coloring with red pigment Control + white pigment with colorant, then coloring with red pigment
図２の評価結果は、以下の通りである。
改質：視認できるように、綺麗にムラなく白色になっている。
改質＋着色：赤色が鮮やかに発色している。
コントロール＋着色：赤色がくすんだ状態で発色している。
The evaluation results in FIG. 2 are as follows.
Modification: The white color is beautifully even and white so that it can be visually recognized.
Modification + coloring: The red color is vivid.
Control + coloring: The color is developed in a dull red state.
実施例２（銀イオン液の作製）
実施例１と同様にして、銀イオン液を作製した。従って、内部電極１１と第３電電極１３は金属銀で構成した。
内部電極１１と外部電極１２との間では、交流電流（５０Ｈｚ、９０Ｖ、１０Ａ）を供給した。
また、内部電極１１と外部電極１２の間と、内部電極１１と第３電極１３の間には、択一的に、直流電流（９０Ｖ、１．２Ａ）を供給した。また、外部電極１２に対する通電時間を３００秒、第３電極１３に対する通電時間を６０秒として、交互に切り替えた。
視覚検査により電解液が十分な濃度になったと判断した時点で、上記試験を終了した。定常状態に戻った後に測定したところ、内部電極１１の銀イオンは０．１ｐｐｍ程度で、ｐＨは４．８であった。
Example 2 (Preparation of silver ion solution)
A silver ion solution was prepared in the same manner as in Example 1. Therefore, the internal electrode 11 and the third electric electrode 13 are made of metallic silver.
An alternating current (50 Hz, 90 V, 10 A) was supplied between the internal electrode 11 and the external electrode 12.
Further, a direct current (90V, 1.2A) was selectively supplied between the internal electrode 11 and the external electrode 12 and between the internal electrode 11 and the third electrode 13. Further, the energization time for the external electrode 12 was set to 300 seconds, and the energization time for the third electrode 13 was set to 60 seconds, and the switching was performed alternately.
The above test was terminated when it was determined by visual examination that the electrolytic solution had a sufficient concentration. When measured after returning to the steady state, the silver ion of the internal electrode 11 was about 0.1 ppm, and the pH was 4.8.
実施例３（銅イオン液の作製）
実施例２と同じ条件で、銅イオン液を作製した。従って、内部電極１１と第３電電極１３は金属銅で構成した以外は、同じ電解条件に実施した。
定常状態に戻った後に測定したところ、内部電極１１の銅イオンは０．８ｐｐｍ程度で、ｐＨは４．３であった。
Example 3 (Preparation of copper ionic liquid)
A copper ionic liquid was prepared under the same conditions as in Example 2. Therefore, the internal electrode 11 and the third electric electrode 13 were subjected to the same electrolytic conditions except that they were made of metallic copper.
When measured after returning to the steady state, the copper ion of the internal electrode 11 was about 0.8 ppm, and the pH was 4.3.
実施例４（チタンイオン液の作製）
実施例１と同様にして、チタンイオン液を作製した。但し、電解槽では電解隔膜は使用しなかった。
内部電極１１と外部電極１２との間では、交流電流（５０Ｈｚ、１００Ｖ、０．８Ａ）を供給した。
また、内部電極１１と外部電極１２の間と、内部電極１１と第３電極１３の間には、択一的に、直流電流（１００Ｖ、３Ａ）を供給した。また、外部電極１２に対する通電時間を１５０秒、第３電極１３に対する通電時間を６０秒として、交互に切り替えた。
視覚検査により電解液が十分な濃度になったと判断した時点で、上記試験を終了した。定常状態に戻った後に測定したところ、内部電極１１のチタンイオンは５ｐｐｍ程度で、ｐＨは５．２であった。
Example 4 (Preparation of Titanium Ionic Liquid)
A titanium ionic liquid was prepared in the same manner as in Example 1. However, no electrolytic diaphragm was used in the electrolytic cell.
An alternating current (50 Hz, 100 V, 0.8 A) was supplied between the internal electrode 11 and the external electrode 12.
Further, a direct current (100V, 3A) was selectively supplied between the internal electrode 11 and the external electrode 12 and between the internal electrode 11 and the third electrode 13. Further, the energizing time for the external electrode 12 was set to 150 seconds, and the energizing time for the third electrode 13 was set to 60 seconds, and the switching was performed alternately.
The above test was terminated when it was determined by visual examination that the electrolytic solution had a sufficient concentration. When measured after returning to the steady state, the titanium ion of the internal electrode 11 was about 5 ppm, and the pH was 5.2.
実施例２、３の結果から、チタンイオンに限定されず、銀イオンや銅イオンでもイオン液を作製できることが確認された。但し、得られた濃度は殺菌用には十分であったが、着色用には更に高めることが必要になる。
また、実施例１と実施例４の比較結果から、電解隔膜３の使用により、チタンイオンの濃度も高くなったことが確認された。
From the results of Examples 2 and 3, it was confirmed that the ionic liquid can be prepared not only with titanium ions but also with silver ions and copper ions. However, although the obtained concentration was sufficient for sterilization, it is necessary to further increase it for coloring.
Moreover, from the comparison result of Example 1 and Example 4, it was confirmed that the concentration of titanium ions was also increased by the use of the electrolytic diaphragm 3.
以上、本発明の実施の形態について詳述してきたが、具体的構成は、この実施の形態に限られるものではなく、本発明の要旨を逸脱しない範囲における設計の変更などがあっても発明に含まれる。 Although the embodiment of the present invention has been described in detail above, the specific configuration is not limited to this embodiment, and the invention is invented even if there is a design change within a range that does not deviate from the gist of the present invention. included.
本発明は食品加工業において利用可能である。 The present invention can be used in the food processing industry.
１‥‥容器 ３‥‥電解隔膜 １１‥‥内部電極
１２‥‥外部電極 １３‥‥第３電極
1 ‥‥‥ Container 3 ‥‥‥ Electrolytic diaphragm 11 ‥‥‥ Internal electrode 12 ‥‥‥ External electrode 13 ‥‥‥ 3rd electrode
Claims (3)
前記着色剤にキレート剤を含ませ、電解により溶出した金属イオンを錯体化した上で着色し、
前記キレート剤は、電解隔膜を構成するケイ素で構成されていることを特徴とする着色方法。 A method for coloring foods by using metal ions of titanium, silver or copper as a coloring agent and coloring the foods with the coloring.
The colorant is impregnated with a chelating agent, and the metal ions eluted by electrolysis are complexed and then colored.
A coloring method , wherein the chelating agent is composed of silicon constituting an electrolytic diaphragm.
流動性食品を電解液に入れ、金属イオンを溶出させると共に、その金属イオンでそのまま当該食品を着色することを特徴とする着色方法。 In the food coloring method according to claim 1,
A coloring method characterized by putting a fluid food in an electrolytic solution, eluting metal ions, and coloring the food as it is with the metal ions.
流動性食品として糖類を使用することを特徴とする着色方法。 In the food coloring method according to claim 2,
A coloring method characterized by using sugars as a fluid food.
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