JP3606466B1 - Method for producing hydrogen reduced water - Google Patents
Method for producing hydrogen reduced water Download PDFInfo
- Publication number
- JP3606466B1 JP3606466B1 JP2004116534A JP2004116534A JP3606466B1 JP 3606466 B1 JP3606466 B1 JP 3606466B1 JP 2004116534 A JP2004116534 A JP 2004116534A JP 2004116534 A JP2004116534 A JP 2004116534A JP 3606466 B1 JP3606466 B1 JP 3606466B1
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- Japan
- Prior art keywords
- water
- hydrogen gas
- hydrogen
- reduced water
- raw water
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- C—CHEMISTRY; METALLURGY
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
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- C—CHEMISTRY; METALLURGY
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Abstract
【目的】多量の水素ガスを水に溶解せしめ、従来の還元水を凌ぐ飲用に適した高還元性の還元水を得る。
【構成】水素ガスを２〜１０気圧に加圧した下で該水素ガスにカルシウムなどのミネラルを含む原水を接触させる。これにより、原水中に水素ガスを溶解せしめた後、これを高気密性容器に充填して密閉し、その状態で加熱殺菌処理を施す。高気密性容器としては、水素ガスに対して遮蔽性の高いアルミ層をもつシート材料から作られるパウチ（アルミパウチ）を好適に用いることができる。
[Objective] Dissolve a large amount of hydrogen gas in water to obtain highly reducible reduced water suitable for drinking that exceeds conventional reduced water.
[Structure] Under pressurized hydrogen gas to 2 to 10 atmospheres, raw water containing minerals such as calcium is brought into contact with the hydrogen gas. Thereby, after dissolving hydrogen gas in raw | natural water, this is filled and sealed in a highly airtight container, and the heat sterilization process is performed in the state. As the highly airtight container, a pouch (aluminum pouch) made of a sheet material having an aluminum layer having a high shielding property against hydrogen gas can be suitably used.
Description
本発明は還元力の高い水素を含有する水素還元水に係わり、特に飲用として好ましく、そのほか食品製造や金属洗浄などに用いて好適な水素還元水の製造方法に関する。 The present invention relates to hydrogen-reduced water containing hydrogen having a high reducing power, and particularly relates to a method for producing hydrogen-reduced water that is preferable for drinking and is suitable for use in food production, metal washing and the like.
水の酸化還元性を判断する指標として、酸化還元電位がある。酸化還元電位がマイナス値を示す水（水溶液）は還元水といって還元性を有することが知られている。一般に、水道水の酸化還元電位は＋５００〜＋７５０ｍＶ、井戸水や市販のミネラルウォータで０〜＋５００ｍＶであり、これらは酸化性を有する水である。 As an index for judging the redox property of water, there is a redox potential. It is known that water (aqueous solution) whose oxidation-reduction potential has a negative value is called reduced water and has reducibility. In general, the oxidation-reduction potential of tap water is +500 to +750 mV, and 0 to +500 mV for well water or commercially available mineral water, and these are water having oxidizing properties.
これに対し、酸化還元電位がマイナス値を示す還元水は、金属の酸化や食品類の腐敗を抑制する効果があり、飲み水として摂取すれば、老化や病気の原因物質とされる体内の活性酸素が除去され、花粉症、アトピー、喘息などのアレルギー性疾患、胃腸などの消化器系疾患、並びに高血圧症といった健康障害も改善できると言われている。 In contrast, reduced water with a negative oxidation-reduction potential has the effect of suppressing metal oxidation and food spoilage, and if ingested as drinking water, it is an activity in the body that is considered a causative agent for aging and disease. It is said that oxygen is removed and allergic diseases such as hay fever, atopy and asthma, gastrointestinal diseases such as gastrointestinal tract, and health disorders such as hypertension can be improved.
ここで、還元水の多くは電解法により生成される。つまり、水の電気分解により陰極側に水素分子が集まる性質を利用し、陰極側における活性水素濃度の高い水を還元水として取り出している（例えば、特許文献１）。 Here, most of the reduced water is generated by an electrolytic method. That is, utilizing the property that hydrogen molecules gather on the cathode side by electrolysis of water, water having a high active hydrogen concentration on the cathode side is taken out as reduced water (for example, Patent Document 1).
尚、電解法によって得た還元水は、還元性を有する天然水と区別して「電解還元水」、又は陰極側の水がアルカリ化するので「アルカリ還元水」などと呼ばれる。 The reduced water obtained by the electrolysis method is called “electrolytically reduced water” or “alkaline reduced water” because the water on the cathode side is alkalized as distinguished from natural water having reducibility.
一方、水を電気分解するのでなく、活性化した水素ガスを水中に吹き込み、水中の溶存酸素を除去するという方法も知られる（例えば、特許文献２）。 On the other hand, instead of electrolyzing water, a method of blowing activated hydrogen gas into water to remove dissolved oxygen in the water is also known (for example, Patent Document 2).
然し乍ら、水の電気分解により得られる還元水（電解還元水）はアルカリ性を示し、酸化還元電位のマイナス値を高くするほどアルカリ性を示すpＨ値が高くなり、pＨ値を飲用に適する９〜１０程度に抑えると酸化還元電位がマイナス１５０ｍＶ程度となり、還元性が低下してしまうという難点がある。 However, reduced water (electrolytically reduced water) obtained by electrolysis of water shows alkalinity, and the higher the negative value of the oxidation-reduction potential, the higher the pH value indicating alkalinity, and the pH value is about 9 to 10 suitable for drinking. If it is suppressed to, the oxidation-reduction potential becomes about minus 150 mV, and there is a drawback that the reducing property is lowered.
一方、水素ガスを水中に吹き込むことでも酸化還元電位はマイナスになるが、水素ガスを水中に単に吹き込むだけでは多くの水素ガスを水に溶解せしめることはできず、しかも還元性を示す基となる活性水素は非常に不安定で、自然放置した場合には、大気中に放出して水の酸化還元電位がプラス方向に変化し、消費者の手元に届くころには還元性が失われてしまうという問題があった。 On the other hand, even if hydrogen gas is blown into water, the oxidation-reduction potential becomes negative. However, by simply blowing hydrogen gas into water, a lot of hydrogen gas cannot be dissolved in water. Active hydrogen is very unstable, and if left undisturbed, it is released into the atmosphere and the redox potential of water changes in the positive direction, and the reducibility is lost when it reaches the consumer. There was a problem.
本発明は以上のような事情に鑑みて成されたものであり、その目的は多量の水素ガスを水に溶解せしめて従来の還元水を凌ぐ飲用に適した高還元性の還元水を得ることにある。 The present invention has been made in view of the circumstances as described above, and its purpose is to obtain a highly reducible reduced water suitable for drinking exceeding conventional reduced water by dissolving a large amount of hydrogen gas in water. It is in.
本発明は上記目的を達成するため、空気を除去した圧力容器内に水素ガスを充填し、前記圧力容器内における水素ガスの圧力を２〜１０気圧に保ったまま、その圧力容器内にミネラルを含む原水をシャワー状に散水して水素ガスと接触させることにより、該原水中に前記圧力容器内の水素ガスを溶解せしめた後、これを高気密性容器に充填して密閉し、その状態で加熱殺菌処理を施すことを特徴とする水素還元水の製造方法を提供する。
又、水素ガスと接触させる前の原水に抗酸化性物質を添加することが好ましい。尚、抗酸化性物質として、アミノ酸、アスコルビン酸、フェノール化合物、オキシ酸類、リン酸、リン酸誘導体、コーヒー酸誘導体、及びフラボノイドのうち、少なくとも一種を用いる。
In order to achieve the above object, the present invention fills hydrogen gas in a pressure vessel from which air has been removed, and keeps the pressure of the hydrogen gas in the pressure vessel at 2 to 10 atm while adding minerals to the pressure vessel. The raw water contained is sprayed in a shower form and brought into contact with hydrogen gas, so that the hydrogen gas in the pressure vessel is dissolved in the raw water, and then this is filled in a highly airtight container and sealed. Provided is a method for producing hydrogen-reduced water, which is characterized by performing a heat sterilization treatment.
Moreover, it is preferable to add an antioxidant substance to the raw water before contacting with hydrogen gas. As the antioxidant substance, at least one of amino acids, ascorbic acid, phenolic compounds, oxyacids, phosphoric acid, phosphoric acid derivatives, caffeic acid derivatives, and flavonoids is used.
更に、高気密性容器として、アルミ層をもつシート材料から作られるパウチを用いることが好ましい。 Furthermore, it is preferable to use a pouch made of a sheet material having an aluminum layer as the highly airtight container.
本発明によれば、水素ガスと原水を加圧下で接触させることから、原水中に多量の水素ガスを溶解せしめて高還元性の水素還元水を得ることができる。 According to the present invention, since hydrogen gas and raw water are brought into contact under pressure, a high amount of hydrogen-reduced water can be obtained by dissolving a large amount of hydrogen gas in the raw water.
又、高気密性容器に充填することから、水素ガスの漏洩を防止して初期の高還元性を長期に亙って維持することができ、特に係る高気密性容器にアルミパウチを用いることから水素ガスの遮蔽性が高く、高還元性の持続効果が上がり、還元水の充填時にも空気との接触を抑制して還元性が損なわれることを防止できる。 In addition, since the high airtight container is filled, hydrogen gas can be prevented from leaking and the initial high reducibility can be maintained over a long period of time. Especially, the aluminum pouch is used for the high airtight container. The hydrogen gas shielding property is high, the effect of sustaining highly reducing properties is increased, and contact with air can be suppressed even when the reducing water is filled, thereby preventing the reducing properties from being impaired.
加えて、水素ガスを溶解せしめた原水を高気密性容器に充填した後、これを密閉した状態で加熱殺菌処理を施すことから、係る処理により水素ガスが外部に漏洩することを防止できる。 In addition, the raw water in which hydrogen gas is dissolved is filled in a highly airtight container, and then heat sterilization is performed in a sealed state. Therefore, hydrogen gas can be prevented from leaking to the outside due to such treatment.
更に、カルシウムなどのミネラルを含む原水を用いることから健康上好ましく、しかもミネラルの作用により還元性をアップできる。 Furthermore, the use of raw water containing minerals such as calcium is preferable from the viewpoint of health, and the reducibility can be improved by the action of minerals.
又、原水に抗酸化性物資を添加することにより、還元性の持続効果が上がり、しかも抗酸化性物質としてのアミノ酸やアスコルビン酸により、アルカリ性の原水でも飲用に適するpＨに調整することができる。 Further, by adding an antioxidant substance to the raw water, the reducing effect can be improved, and the pH can be adjusted to be suitable for drinking even with alkaline raw water by using an amino acid or ascorbic acid as an antioxidant substance.
以下、本発明に係る水素還元水の製造方法について説明すると、係る方法の特徴は第１に水素ガスと原水を加圧下で接触させることにある。これには、圧力容器を用い、その内部に原水と水素ガスとを導入し、圧力容器の内圧（水素ガスの圧力）を２〜１０気圧に保ち、その状態で原水を水素ガス中に散水する。 Hereinafter, the method for producing hydrogen-reduced water according to the present invention will be described. The feature of the method is that hydrogen gas and raw water are brought into contact with each other under pressure. For this purpose, a pressure vessel is used, and raw water and hydrogen gas are introduced therein, the internal pressure of the pressure vessel (hydrogen gas pressure) is maintained at 2 to 10 atm, and the raw water is sprinkled into hydrogen gas in that state. .
特に、圧力容器内の空気を予め真空ポンプで除去し、次いで２〜１０気圧、好ましくは７〜８気圧に加圧した水素ガスを圧力容器内に充填し、その内圧を２〜１０気圧（２０２６５０〜１０１３２５Ｐa）に保ったまま、圧力容器の内圧以上（８１０６００〜２０２６５００Ｐa、好ましくは１５１９８７５Ｐa）に加圧した原水を圧力容器内に供給し、好ましくは圧力容器内に供給した原水を抜き取って圧力容器内に再供給するという循環サイクルを数回繰り返す。尚、圧力容器内に供給する原水は、複数の微細な孔（例えば、口径１００〜３００μｍ）をもつノズルヘッドを散水管の先端に取り付けるなどしてシャワー状に散水することが好ましい。
In particular, the air in the pressure vessel is previously removed with a vacuum pump, and then hydrogen gas pressurized to 2 to 10 atm, preferably 7 to 8 atm, is filled in the pressure vessel, and the inner pressure is set to 2 to 10 atm (202650). while maintaining the ～101325Pa), or the internal pressure of the pressure vessel (810600～2026500Pa, preferably supplies raw water pressurized to 1519875Pa) in a pressure vessel, preferably a pressure vessel that extracts the raw water supplied to the pressure vessel The cycle of refeeding is repeated several times. Incidentally, the raw water is supplied to the pressure vessel, a plurality of fine holes (e.g.,
以上のような方法によれば、原水中に多量の水素ガスを溶解せしめ、従来の電解還元水の酸化還元電位が−２００〜−３００ｍＶであるところ、これを遥かに凌ぐ−５００ｍＶ以下の酸化還元電位を示す高還元性の還元水が得られる。これは、一定の温度で一定量の液体に溶解する気体の量はその圧力に比例するというヘンリーの法則に基づくものであり、大気圧下で原水に水素ガスを吹き込む場合に比べると、より多くの水素ガスを溶解せしめることができる。 According to the above method, a large amount of hydrogen gas is dissolved in the raw water, and the oxidation-reduction potential of the conventional electrolytic reduction water is -200 to -300 mV, which is much higher than this, and is less than -500 mV. A highly reducible reduced water showing potential is obtained. This is based on Henry's law that the amount of gas that dissolves in a certain amount of liquid at a certain temperature is proportional to its pressure, which is much higher than when hydrogen gas is blown into raw water at atmospheric pressure. The hydrogen gas can be dissolved.
尚、水素ガスはボンベに充填されたものをそのまま使用してもよいが、これをプラズマなどにより活性化した活性水素とすることが好ましい。又、原水は水道水、これを蒸留した蒸留水もしくは脱塩水（純水）でもよいが、飲用にしてカルシウム、カリウム、ナトリウム、鉄、亜鉛、マグネシウムといった多くのミネラルを含む天然水が好ましい。例えば、富山市の地下水（井戸水）の精密微量分析を行うと、多種類のミネラルを検出できる。これはアルカリ土類金属に属するカルシウムをはじめ、アルカリ金属に属するナトリウム、カリウムが中心で、多い元素では数十ｐｐｍ、少ないものでも数ｐｐｍが認められる。 The hydrogen gas filled in the cylinder may be used as it is, but it is preferable to use activated hydrogen activated by plasma or the like. The raw water may be tap water, distilled water obtained by distilling it or demineralized water (pure water), but natural water containing many minerals such as calcium, potassium, sodium, iron, zinc and magnesium is preferable for drinking. For example, a precise microanalysis of groundwater (well water) in Toyama City can detect many types of minerals. This is centered on calcium, which belongs to alkaline earth metals, and sodium and potassium, which belong to alkali metals.
特に、それらミネラル（金属）はイオン化傾向が大きく、原水の酸化還元電位をマイナスにシフトする還元剤として機能する。従って、本発明の第２の特徴は、原水に還元剤として機能するミネラルを含んだものを用いることにある。これによれば、水素ガスとの相乗作用により還元性が一段と向上するという効果がある。但し、原水として、水道水にミネラルを人工的に添加してもよい。 In particular, these minerals (metals) have a large ionization tendency and function as a reducing agent that shifts the redox potential of raw water to minus. Therefore, the second feature of the present invention is to use raw water containing a mineral that functions as a reducing agent. According to this, there exists an effect that reducibility improves further by synergistic action with hydrogen gas. However, minerals may be artificially added to tap water as raw water.
又、本発明の第３の特徴は、水素ガスと接触させる前の原水に抗酸化性物質を添加することにある。これによれば、水素ガスとミネラルの働きによる高い還元性を維持することができる。尚、抗酸化性物質は人体に害にならないもので、これにはアミノ酸（アスパラギン酸、アルギニン、リシン、アラニン、グルタミン酸、ロイシン、イソロイシン、バリン、プロリンアミノ酸など）、アスコルビン酸、フェノール化合物（トコフェロール、グアヤク脂、ノルジヒドログアヤレチック酸：ＮＤＧＡ）、オキシ酸類（クエン酸、酒石酸、リンゴ酸など）、リン酸及びその誘導体（フィチン酸、レシチンなど）、コーヒー酸誘導体（クロロゲン酸、ジヒドロコーヒー酸など）、及びフラボノイドのうち、少なくとも一種、好ましくは数種類の混合物が用いられる。 The third feature of the present invention is that an antioxidant substance is added to the raw water before contact with hydrogen gas. According to this, high reducibility by the action of hydrogen gas and minerals can be maintained. Antioxidants do not harm the human body, and include amino acids (aspartic acid, arginine, lysine, alanine, glutamic acid, leucine, isoleucine, valine, proline amino acids, etc.), ascorbic acid, phenolic compounds (tocopherol, Guayac fat, nordihydroguaiaretic acid: NDGA), oxyacids (citric acid, tartaric acid, malic acid, etc.), phosphoric acid and its derivatives (phytic acid, lecithin, etc.), caffeic acid derivatives (chlorogenic acid, dihydrocaffeic acid, etc.) ) And flavonoids, at least one kind, preferably several kinds of mixtures are used.
ここに、カルシウムなどの水酸化物を含んだ原水では、酸化還元電位をマイナス側にシフトさせることができるが、その種の金属の水酸化物が溶存すると、原水のpＨ値が上がってアルカリ性になる。特に、アルカリ度が高すぎる場合には飲用に適さなくなるので、これを中性側に傾ける操作が必要になる。この点、上記のような酸から成る抗酸化性物質はアルカリ性の原水を中性側に傾け得るpＨ調整剤としても機能し、その添加量によって原水が多量の水酸化カルシウムを含む強アルカリ性の場合でも、そのpＨ値を中性域（例えば、pＨ５．８〜８．６）に調整して中性還元水とすることができる。 Here, in raw water containing a hydroxide such as calcium, the oxidation-reduction potential can be shifted to the negative side. However, when such a metal hydroxide is dissolved, the pH value of the raw water increases and becomes alkaline. Become. In particular, when the alkalinity is too high, it is not suitable for drinking, and an operation of tilting it to the neutral side is necessary. In this respect, the above-mentioned antioxidant substance composed of an acid also functions as a pH adjusting agent capable of inclining alkaline raw water to the neutral side. When the raw water contains a strong amount of calcium hydroxide depending on the amount added, However, the pH value can be adjusted to a neutral range (for example, pH 5.8 to 8.6) to obtain neutral reduced water.
次に、本発明の第４の特徴である高気密性容器について説明すると、本発明はこれにアルミパウチ、すなわちアルミ層をもつシート材料から作られるパウチを用いる。係るアルミパウチは２枚のプラスチックフィルム（ポリエステル／ポリプロピレン、又はナイロン／ポリプロピレン）の間にアルミ箔を挟み込んだシート材料を二枚重ねにしてその周縁をヒートシールしたフレキシブルの容器であり、これによれば偏平状態にしてその内部に水素還元水を空気と接触させることなく充填でき、しかもその充填口を充填直後にヒートシールして密閉し、水素ガスの漏洩を完全にシャットアウトして充填した水素還元水の還元力を長期に亙って充填時の状態に維持することができる。 Next, the highly airtight container which is the fourth feature of the present invention will be described. The present invention uses an aluminum pouch, that is, a pouch made of a sheet material having an aluminum layer. Such an aluminum pouch is a flexible container in which two sheets of plastic film (polyester / polypropylene or nylon / polypropylene) are sandwiched with two sheets of aluminum foil and the periphery is heat sealed. The hydrogen reduced water can be filled without bringing it into contact with air, and the filling port is heat-sealed and sealed immediately after filling, and the hydrogen gas leakage is completely shut out and filled. It is possible to maintain the reducing power of the filling state for a long time.
又、以上のようなパウチによれば、水素還元水の充填後に短時間で良好な殺菌処理を施すことができる。係る殺菌処理には７０〜８５℃、好ましくは８０℃に加熱した熱湯を用い、これに水素還元水を充填して密閉したパウチ（高気密性容器）を３０分程度浸漬するが、熱湯や加熱蒸気を吹き付けるようにしてもよい。 Moreover, according to the pouch as described above, a good sterilization treatment can be performed in a short time after filling with hydrogen-reduced water. Hot water heated to 70 to 85 ° C., preferably 80 ° C. is used for the sterilization, and a pouch (highly airtight container) filled with hydrogen-reduced water and sealed is immersed for about 30 minutes. Steam may be blown.
尚、高気密性容器として、ガラス瓶、スチール又はアルミ缶を用いることもできるが、それらの硬質容器では還元水を充填する際に容器内の空気と接触して水素ガス溶解時点の還元力が損なわれる。又、ＰＥＴ（ポリエチレンテレフタレート）製のボトルでは、水素ガスが容器壁を通って外部に放出してしまい、開栓せずして酸化還元電位が徐々にプラス側にシフトするので適用できない。但し、本発明に係る水素還元水をＰＥＴボトルに充填した場合でも、これを水素ガスの雰囲気下に保存することで酸化還元電位をマイナスに維持することができる。
［試験１］
本試験では水素ガスを溶解した水（水素還元水）の保存状態による酸化還元電位への影響を検討した。尚、酸化還元電位の測定は、酸化還元電位計（東亜ディーケーケー株式会社製HM-21P型、比較電極：銀−塩化銀）を用いた。又、水素還元水の製造には、イオン交換樹脂で精製した純水を用い、これを洗気ビンに２５０ml入れ、これに水素ガスを流量１４．３ml／秒で３０分間吹き込んだ。得られた水素還元水（検水）は以下に示す４つの方法で保存し、その各検水について一日置きに酸化還元電位を測定した。 （１）開栓し室温で保存した場合
（２）開栓し冷蔵庫内に置いて４℃で保存した場合
（３）密栓のまま室温で保存した場合
（４）密栓のまま冷蔵庫内に置いて４℃で保存した場合
水素ガス溶解直後では、各検水の酸化還元電位は−３２０ｍＶを示したが、経時的に電位はプラスへと移行した。保存状態の異なる各検水の酸化還元電位に多少の違いは生じたが、一週間後の酸化還元電位は全て＋３００ｍＶ以上となった。
［試験２］
本試験では原水に含まれるミネラルの濃度による酸化還元電位への影響を検討した。そのために、純水に水酸化カルシウムを添加し、水酸化カルシウム飽和水溶液(1850ppm)を調製し、これを１０倍(185ppm)、１００倍(18.5ppm)、および１０００倍(1.85ppm)に希釈し、これを洗気ビンに２５０ｍｌずつ入れ、それぞれに水素ガスを通気して合計４種類の検水を調製した。そして、その各検水を開栓状態とし、一日置きに酸化還元電位を測定した。その結果を図１に示す。尚、縦軸は酸化還元電位、横軸は日数である。
Glass bottles, steel or aluminum cans can also be used as highly airtight containers. However, in such hard containers, when reducing water is filled, the reducing power at the time of hydrogen gas dissolution is lost due to contact with the air in the container. It is. Also, PET (polyethylene terephthalate) bottles are not applicable because hydrogen gas is released to the outside through the container wall, and the redox potential gradually shifts to the positive side without opening. However, even when hydrogen-reduced water according to the present invention is filled in a PET bottle, the oxidation-reduction potential can be kept negative by storing it in an atmosphere of hydrogen gas.
[Test 1]
In this test, the effect of the storage state of water (hydrogen-reduced water) in which hydrogen gas was dissolved on the redox potential was examined. The oxidation-reduction potential was measured using an oxidation-reduction potentiometer (HM-21P type manufactured by Toa DKK Corporation, comparative electrode: silver-silver chloride). For the production of hydrogen-reduced water, pure water purified with an ion exchange resin was used, 250 ml of this was put into a washing bottle, and hydrogen gas was blown into it for 30 minutes at a flow rate of 14.3 ml / sec. The obtained hydrogen-reduced water (sample water) was stored by the following four methods, and the redox potential was measured every other day for each sample water. (1) When opened and stored at room temperature (2) When opened and stored in a refrigerator and stored at 4 ° C (3) When stored at room temperature with a sealed cap (4) Placed in a refrigerator with a sealed cap When stored at 4 ° C. Immediately after dissolution of hydrogen gas, the redox potential of each test water showed −320 mV, but the potential shifted to plus over time. Although there were some differences in the oxidation-reduction potentials of the test waters with different storage conditions, the oxidation-reduction potentials after one week were all +300 mV or more.
[Test 2]
In this test, the effect of mineral concentration in raw water on redox potential was examined. For this purpose, calcium hydroxide is added to pure water to prepare a saturated aqueous solution of calcium hydroxide (1850 ppm), which is diluted 10 times (185 ppm), 100 times (18.5 ppm), and 1000 times (1.85 ppm). Then, 250 ml of each sample was put in a washing bottle, and hydrogen gas was passed through each to prepare a total of four types of test water. And each test water was made into an open state, and the oxidation-reduction potential was measured every other day. The result is shown in FIG. The vertical axis represents the oxidation-reduction potential, and the horizontal axis represents the number of days.
図１から明らかなように、カルシウム濃度が高い検水ほど、低い酸化還元電位を持続し続けた。特に、カルシウム濃度が１８５０ｐｐｍの検水では１３日間、酸化還元電位がマイナス値を持続した。又、いずれの検水も初期の酸化還元電位を−３２０ｍＶ以下にすることができた。
［試験３］
本試験では抗酸化性物質（アスコルビン酸）の添加による効果を検討した。水酸化カルシウムの濃度が３００ｐｐｍの水溶液のpＨは１２であり、これを洗気ビンに２５０ｍｌ入れ、これにＬ−アスコルビン酸をpＨ７になるまで添加した。又、比較として、純水２５０ｍｌに上記と等量のアスコルビン酸のみを加えたもの、及び何も加えない純水２５０ｍｌを洗気ビンに入れ、それらに水素ガスを通気して合計３種類の検水を調製した。そして、その各検水を開栓状態とし、一日置きに酸化還元電位を測定した。その結果を図２に示す。尚、縦軸は酸化還元電位、横軸は日数である。
As is clear from FIG. 1, the sample having a higher calcium concentration continued to maintain a lower redox potential. In particular, in the test water having a calcium concentration of 1850 ppm, the oxidation-reduction potential maintained a negative value for 13 days. In addition, all the test waters were able to reduce the initial redox potential to −320 mV or less.
[Test 3]
In this test, the effect of adding an antioxidant (ascorbic acid) was examined. The pH of the aqueous solution having a calcium hydroxide concentration of 300 ppm is 12, and 250 ml of this solution was placed in a washing bottle, and L-ascorbic acid was added to this until pH 7 was reached. As a comparison, 250 ml of pure water with only the same amount of ascorbic acid as above and 250 ml of pure water with nothing added are placed in a washing bottle, and hydrogen gas is passed through them to make a total of three types of tests. Water was prepared. And each test water was made into an open state, and the oxidation-reduction potential was measured every other day. The result is shown in FIG. The vertical axis represents the oxidation-reduction potential, and the horizontal axis represents the number of days.
図２のように、水酸化カルシウムとアスコルビン酸を含む中性検水Ａ、及び純水から成る検水Ｃでは酸化還元電位の経時的変化に大差は認められなかったが、アスコルビン酸のみを含む検水Ｂでは初期の酸化還元電位が高く、比較的短期間で酸化還元電位がプラスに移行することが認められた。
［試験４］
本試験では水素還元水を充填する容器としてＰＥＴボトルが有効か否かを検討した。先ず、３つのＰＥＴボトル（500ml）にイオン交換水を入れ、それぞれに水素ガスを通気した後、栓をした。そして、一つのＰＥＴボトルを真空デシケーター（角型、幅３０ｃｍ、奥行３０ｃｍ、高さ２５ｃｍ、内容積約２０リットル）内に置き、真空ポンプで減圧にした。その後、真空デシケーター内に水素ガスを大気圧状態まで導入し、そのままの状態で保存した。一方、他のＰＥＴボトルはそれぞれ冷蔵庫内と室内に保存した。そして、それら各ＰＥＴボトル内の検水について酸化還元電位の経時変化を調べた。その結果を表１および図３に示す。
As shown in FIG. 2, the neutral test water A containing calcium hydroxide and ascorbic acid and the test water C composed of pure water showed no significant difference in the redox potential over time, but included only ascorbic acid. In Sample B, the initial redox potential was high, and it was observed that the redox potential shifted to positive in a relatively short period.
[Test 4]
In this test, it was examined whether a PET bottle is effective as a container filled with hydrogen-reduced water. First, ion-exchange water was put into three PET bottles (500 ml), hydrogen gas was passed through each of them, and then the stoppers were plugged. Then, one PET bottle was placed in a vacuum desiccator (square shape, width 30 cm, depth 30 cm, height 25 cm, internal volume about 20 liters), and the pressure was reduced by a vacuum pump. Thereafter, hydrogen gas was introduced into the vacuum desiccator to the atmospheric pressure state and stored as it was. On the other hand, the other PET bottles were stored in the refrigerator and the room, respectively. And the time-dependent change of oxidation-reduction potential was investigated about the test water in each of these PET bottles. The results are shown in Table 1 and FIG.
［試験５］
本試験では、圧力容器内に水素ガスを８気圧で充填し、この中に原水を１２気圧で供給（散水）した。これにより、圧力容器内で原水に水素ガスを十分に接触させて溶解させた後、これをアルミパウチに充填して密閉し、次いでこれを８０℃の熱水中に漬けて加熱殺菌処理を行った。尚、水素還元水の酸化還元電位はアルミパウチへの充填時点で−６００ｍＶであり、加圧下における原水と水素ガスとの接触により、大気圧下のときよりも酸化還元電位が低下することが認められた。これは、原水に対する水素ガスの溶解量が大きいためと思われる。
[Test 5]
In this test, the pressure vessel was filled with hydrogen gas at 8 atm, and raw water was supplied (sprinkled) at 12 atm. As a result, after hydrogen gas is sufficiently brought into contact with the raw water in the pressure vessel to dissolve it, the aluminum pouch is filled and sealed, and then immersed in hot water at 80 ° C. for heat sterilization treatment. It was. The redox potential of hydrogen-reduced water is −600 mV at the time of filling the aluminum pouch, and it is recognized that the redox potential is lower than that at atmospheric pressure due to contact between the raw water and hydrogen gas under pressure. It was. This is probably because the amount of hydrogen gas dissolved in the raw water is large.
又、常温で保存したアルミパウチを２週間後に開封して内容物（水素還元水）の酸化還元電位を測定したところ、初期値と大差ない−５７０ｍＶであり、本発明に係る水素還元水を充填する高気密性容器としては、アルミパウチが有効であることが判った。 In addition, when the aluminum pouch stored at room temperature was opened after 2 weeks and the oxidation-reduction potential of the contents (hydrogen-reduced water) was measured, it was -570 mV which was not much different from the initial value, and was filled with hydrogen-reduced water according to the present invention. It has been found that an aluminum pouch is effective as a highly airtight container.
以上、本発明について説明したが、係る水素還元水は飲用に限らず、金属洗浄水や調理用水などとしても好適に利用することができる。 Although the present invention has been described above, the hydrogen-reduced water can be suitably used not only for drinking but also for metal cleaning water, cooking water, and the like.
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| JP2004116534A JP3606466B1 (en) | 2004-04-12 | 2004-04-12 | Method for producing hydrogen reduced water |
| KR1020040104103A KR100678576B1 (en) | 2004-04-12 | 2004-12-10 | Reducing water containing hydrogen and manufacturing method thereof |
| TW094100685A TW200533607A (en) | 2004-04-12 | 2005-01-11 | Hydrogen reduced water and method for preparing the same |
| US11/065,252 US20050224996A1 (en) | 2004-04-12 | 2005-02-24 | Hydrogen reduced water and method for preparing the same |
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