JP3681346B2 - Method for producing cooked rice water, cooked rice water or concentrate for cooked rice water - Google Patents

Method for producing cooked rice water, cooked rice water or concentrate for cooked rice water Download PDF

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JP3681346B2
JP3681346B2 JP2001220663A JP2001220663A JP3681346B2 JP 3681346 B2 JP3681346 B2 JP 3681346B2 JP 2001220663 A JP2001220663 A JP 2001220663A JP 2001220663 A JP2001220663 A JP 2001220663A JP 3681346 B2 JP3681346 B2 JP 3681346B2
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water
rice
concentrate
cooked
cooking
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雅弘 河野
和男 織田
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雅弘 河野
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Description

【0001】
【産業上の利用分野】
本発明は、米を炊く際に用いられる炊飯水に関するものである。
【0002】
【従来の技術】
米飯を炊く際は、数回の米研ぎによりぬかの成分を十分に除き、その後水(炊飯水)を米の分量に応じて適当な量加え、所定の吸水時間を与えた後に適切な火加減で炊くという手順が一般的である。
【0003】
一方、最近、洗浄(米研ぎ)を行なわなくても炊くことのできる米(無洗米)が普及しつつある。この無洗米は、玄米の肌ぬかをほぼ完全に除去する特殊な製法によって製造されている。この無洗米は、単に水を一定量加えることで、炊くことができる。このような無洗米は、米研ぎに必要な水の消費が減ると同時に、リン等のぬかの成分が含まれる研ぎ水が出ないなど様々な利点を持っている。また、無洗米は研ぐことがないため、うまみ成分流出がなく食味が向上すると言われている。
【0004】
このような特徴を持つ無洗米の登場によって食生活の革命が起ころうとしているが、その一方で注目されているのが、お米を炊く水(炊飯水)である。一部の家庭ではミネラルウォータでお米を炊くことが行われていると言われているが、一般化していない。米を原料とする酒やお酢などの味が使用する水によって変ることは良く知られており、特に、酒の味は水で決まると言われて来た。また、日本の各地には、天然水と呼ばれる地下水や湧水でお米を炊くと美味しいとの伝承もある。美味しくなるのは、天然水に多くのミネラル成分が含まれているためとも言われている。
【0005】
【発明が解決しようとする課題】
しかしながら、どのようなミネラルイオンが、どのくらいの量含まれていて、どのような割合になると米飯の味すなわち食味を向上させるのかは分かっていなかった。
【0006】
本発明は、この点に鑑みてなされたものであり、科学的な根拠に基づき再現性良く米飯の食味を向上させることのできる炊飯水を提供することを目的とするものである。
【0007】
【課題を解決するための手段】
本発明にかかる炊飯水は、米を炊く際に用いる炊飯水であって4種のミネラルイオン(Na,Mg,Ca,K)を所定の配合比で含有することを特徴としている。
本発明にかかる炊飯水濃縮液は、所定の倍率に水で希釈することにより上記炊飯水が得られるようにすることを特徴としている。
本発明にかかる炊飯水または炊飯水濃縮体の製造方法は、海洋深層水または塩水湖水と塩湖水濃縮液または天然塩溶液の濃度を調整して混合し、4種のミネラルイオン(Na,Mg,Ca,K)が所定の配合比で含有されるようにすることを特徴としている。
【0008】
【発明の実施の形態】
以下、本発明の実施の形態を説明する。高知県室戸沖の水深200メートルを超える海面下から採取される海洋深層水や、米国ユタ州のソルトレーク(塩水湖)で生産される塩水湖水には、各種ミネラルが豊富に含まれていることが知られている。
【0009】
本発明者は、塩水湖水あるいは海洋深層水を一定の割合で薄めた水を炊飯水とした場合、通常の飲料水を用いる場合に比べ、米の食味が変化する現象を確認した。しかしながら、どのようなミネラルイオンがどのくらいの量含まれていて、どのような割合になると味すなわち食味が向上するのかは、その時点では不明であった。
【0010】
それでは、ミネラルイオンがどのような機構で食味に影響するのであろうか。人の味覚に関する研究で、舌の細胞が味覚のどのような信号情報を脳に伝え、脳が味覚の情報を様々な味に翻訳する仕組みが解明されつつある。
最新の研究によれば、人の味覚は塩味、酸味、甘味、苦味の4つに分けて表現されている。一部の研究者は、これらに蛋白質を構成するアミノ酸を旨味として加える場合もある。塩味、酸味、苦味に関係するミネラルイオンは、それぞれ、Na、K、Caであると言われている。
【0011】
本発明者の実験では、3種の主要ミネラルイオン(Na,K,Ca)およびMgイオンが一定の割合となり、微量ミネラルイオンの濃度に依存し炊飯米の食味が増すことが確認された。
すなわち、ミネラルイオンが食味に及ぼす影響を科学的に検証する目的で、様々な濃度のミネラルイオン濃度の水を調整し、この水を炊飯水として無洗米の炊飯試験を行なった結果、ミネラルイオンを一定の割合に調合した水を米(無洗米)の炊飯に用いた場合に食味が向上することが明らかとなった。
【0012】
表1は、試験結果の一例を示している。
【表1】

Figure 0003681346
【0013】
表1の試験において、用いた米は新潟産こしひかりの無洗米、サンプルAはミネラル分を殆ど含まない精製水のみで炊飯した。表1の試験では、サンプルCが評価者8名全員一致で1位との高い評価を受けた。甘みがあり炊きあがりの香りが良いとの理由であった。このような試験を、ミネラル濃度を変えて繰り返した結果、2つの条件が求められた。1つは、NaとMgの濃度であり、この2種類のミネラルについては、食味の向上が見られるのは30乃至70ppm、好ましくは40乃至70ppmの範囲であった。2つ目は、CaとKの濃度であり、この2種類のミネラルについては、食味の向上が見られるのは0.1乃至6ppmの範囲であった。
【0014】
本発明の炊飯水に必要なミネラルイオンを提供する原料としては、海洋深層水が好適である。その理由は、Na,K,Caの金属イオンの濃度バランスがとれており、清浄性の高い点である。ただし、海洋深層水のみでは、最適な食味を生み出す炊飯水とはならないことも確認できた。そこで、深層水の原水(水深200m以上の深海より採取された水)を一定の割合で希釈し、Na,K,Ca濃度を調整し、さらに、塩水湖水のもつMgを一定量で添加すると、美味しいご飯を炊くことのできる炊飯水が得られた。
【0015】
表2は、室戸海洋深層水、ソルトレイク塩水湖水、塩水湖水の濃縮液、海洋深層水脱塩水に含まれる主要ミネラルの量を示している。ただし、塩水湖水と海洋深層水脱塩水については、Na,K,Ca,Mgについてのみ示している。
【0016】
【表2】
Figure 0003681346
【0017】
この表2から分かるように、海洋深層水では、Mgの濃度はNaに比べて一桁近く低い。従って、そのまま希釈したのでは、先に述べたようにMgとNaが同等の濃度となるようにすることは困難である。そこで、海洋深層水を主原料とする場合には、MgをNaに比べて50倍近くも含有する塩水湖水濃縮液を、適宜混合することにより、MgとNaが同等の濃度となるようにすることができる。また、塩水湖水を主原料とする場合も、全く同様にMgの濃度がNaに比べて一桁近く低いので、塩水湖水濃縮液を、適宜混合することにより、MgとNaが同等の濃度となるようにすることができる。
【0018】
図1に、いくつかの組み合わせ例を示す。グループAは大量に炊飯する業務用に適した高濃度の炊飯水濃縮液、グループBはそれほど大量に炊飯しない業務/家庭用の低濃度の炊飯水濃縮液、グループCは希釈せずに使用する主に家庭用の炊飯水であり、それぞれ3つのパターン例を示している。
【0019】
各パターン例で用いられる原料(1)〜(5)は、それぞれ(1)が室戸海洋深層水、(2)がソルトレイク塩水湖水、(3)がソルトレイク塩水湖水の濃縮液、(4)が海洋深層水に脱塩処理を施した深層水脱塩水、(5)が例えば逆浸透膜などを用いた浄水装置で作成したミネラル分を殆ど含まない精製水である。
【0020】
例えば、グループAのパターン1では、海洋深層水1、塩水湖水濃縮液0.1の割合で混合したものが炊飯水濃縮液として用意される。そして、炊飯の際に、これを希釈率0.55%となるように精製水で希釈すると、Ca、Mg、Na、Kの濃度はそれぞれ、2.12、61.52、55.69、3.06(単位はmg/L)となる。
【0021】
また、グループBのパターン2では、塩水湖水1、塩水湖水濃縮液1、深層水脱塩水12の割合で混合したものが炊飯水濃縮液として用意される。そして、炊飯の際に、例えば3合(450g)の米に対し、精製水670ccと炊飯水濃縮液5ccを加えて炊飯水とする。この炊飯水675ccには、Ca、Mg、Na、Kが、それぞれ、0.45、42.14、38.64、2.70(単位はmg/)が含まれることになる。
【0022】
なお、図1の例では、海洋深層水を主原料とする場合も、塩水湖水を主原料とする場合も、不足するMgの補給源として塩水湖水濃縮液を用いたが、塩水湖水濃縮液ではなく他の物質を用いることが可能である。例えば、海水を原料とする天然塩の水溶液を用いても良い。
【0023】
さらに、本発明者は、本発明の炊飯水を用いた場合、腐敗が長時間にわたって抑制されること、さらに時間の経過と共に炊飯米が黄色に変化することが抑制されることを確認した。
すなわち、本発明の炊飯水で炊いた米について菌の培養試験を行なった結果、菌の増殖速度が、通常の飲料水で炊いた米に比べて抑制されることを本発明者は確認した。
【0024】
炊飯米を保存すると外部からの雑菌の混入により腐敗が進行する。一般細菌の培養試験を行なったところ、表3のように、本発明の一定量のミネラルイオンを添加した炊飯水を用いた場合、一般細菌の増殖が抑制され、本発明の炊飯水には腐敗を防ぐ効果のあることが確認された。さらに、ミネラルイオンの添加量を増すと、9日後でも細菌の増殖は認められず、ミネラルイオンが濃度依存的な静菌作用をすることは明かとなった。
【0025】
【表3】
Figure 0003681346
【0026】
さらに、表3と同一条件で炊飯した白米の色変わり(黄変)を観察した結果、白米の黄変現象が抑制された。黄変は米に含まれる脂質や蛋白が酸化される為と考えられる。このような酸化反応は活性酸素によるものと考えられている。そのため、ビタミンEを添加して炊飯を行う方法も提案されている。発明者らの研究で、一定濃度以上のミネラルイオンが存在すると活性酸素の生成が抑制されることが明らかにされており、黄変の抑制の作用機構の一つとして解明されている。その一方では、細菌の増殖によって腐敗が起こり、脂質の過酸化や蛋白の変性が生じ、黄変する機構も考えられ、細菌の増殖抑制が黄変を抑制している可能性もある。
【0027】
現在のところ、ミネラルイオンの添加によって黄変を抑制できることは確認されているが、抑制効果が細菌の増殖抑制のためか、抗酸化的な作用によるものかはあきらかでない。しかし、黄変の抑制効果はミネラルイオンの濃度に依存していることは明らかであった。
【0028】
さらに、この炊飯水で炊いた炊飯米には一定濃度の微量ミネラルが含まれることになり、無洗米あるいは白米の欠点である、微量ミネラルの不足を補給する効果もあることが理解される。
【0029】
なお、上述した例では無洗米に炊飯水を加えて炊いたが、通常の白米であっても、米研ぎ後に本発明の炊飯水を用いて炊くと、食味の向上があることが確認されており、本発明の炊飯水は、通常の白米のついても使用して効果のあるものである。
【0030】
また、上記例では、炊飯水濃縮液を希釈することにより炊飯水を得るようにしたが、濃縮液に水分除去処理を施して結晶化し、粉末あるいは固化した状態に形成することも考えられる。このような場合でも、所定量の飲料水を加えることにより、本発明の炊飯水を得ることができる。
【0031】
【発明の効果】
以上詳述したように、本発明の炊飯水は、4種のミネラルイオン(Na,Mg,Ca,K)を所定の配合比で含有し、NaとMgの濃度が30乃至70ppmであり、CaとKの濃度が0.1乃至6ppmであることにより、これを用いて炊いた米の食味を向上させることができる。また、米で不足しがちな微量ミネラルの不足を補うという効果も期待できる。さらに、ミネラルの含有により、保存期間の延長及び炊飯米の黄変の抑制効果も期待できる。
【0032】
特に、海洋深層水は、清浄性が高いため、表層水の場合では必要となる含有する有機物を除く操作が不要となり、濾過程度の処理を施した後に希釈して使用することが可能である。そして、ミネラルイオンのバランスが一定であるため、安定な炊飯水の原料として利用できる。
【図面の簡単な説明】
【図1】室戸海洋深層水、ソルトレイク塩水湖水、塩水湖水の濃縮液、海洋深層水脱塩水及び精製水のいずれかを組み合わせて本発明の炊飯水、炊飯水濃縮液を作成した例を示す一覧表である。[0001]
[Industrial application fields]
The present invention relates to rice cooking water used when cooking rice.
[0002]
[Prior art]
When cooking cooked rice, remove rice bran ingredients thoroughly by several times of rice sharpening, and then add water (cooked rice water) in an appropriate amount according to the amount of rice, and give appropriate water absorption time. The general procedure is to cook in
[0003]
On the other hand, recently, rice that can be cooked without washing (rice sharpening) (unwashed rice) is becoming popular. This non-washed rice is produced by a special manufacturing method that almost completely removes brown bran skin bran. This unwashed rice can be cooked simply by adding a certain amount of water. Such washing-free rice has various advantages such as the consumption of water necessary for rice sharpening is reduced, and at the same time, no polishing water containing bran components such as phosphorus is produced. In addition, it is said that unwashed rice is not sharpened, so there is no umami component outflow and the taste is improved.
[0004]
With the advent of wash-free rice with such characteristics, the revolution of eating habits is about to occur, but on the other hand, the water that cooks rice (rice-cooked water) is drawing attention. It is said that some households cook rice with mineral water, but this is not common. It is well-known that the taste of sake and vinegar made from rice changes depending on the water used. In particular, the taste of sake has been said to be determined by water. In addition, there are traditions throughout Japan that rice is delicious when cooked in groundwater or spring water called natural water. It is said that it is delicious because natural water contains many mineral components.
[0005]
[Problems to be solved by the invention]
However, it has not been known what amount of mineral ion is contained and how much it improves the taste of the cooked rice, that is, the taste.
[0006]
This invention is made | formed in view of this point, and it aims at providing the rice cooking water which can improve the taste of cooked rice with sufficient reproducibility based on a scientific basis.
[0007]
[Means for Solving the Problems]
The rice cooked water according to the present invention is rice cooked water used when cooking rice and is characterized by containing four kinds of mineral ions (Na, Mg, Ca, K) at a predetermined blending ratio.
The rice cooking water concentrate according to the present invention is characterized in that the rice cooking water is obtained by diluting with water at a predetermined magnification.
The method for producing cooked rice water or cooked water concentrate according to the present invention is prepared by adjusting the concentration of deep ocean water or salt lake water and salt lake water concentrate or natural salt solution, and mixing four kinds of mineral ions (Na, Mg, Ca, K) is contained at a predetermined blending ratio.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below. It is known that deep sea water collected from below sea level 200 meters off Muroto off Kochi Prefecture and saltwater lake water produced in Salt Lake in Utah, USA are rich in various minerals. It has been.
[0009]
The present inventor has confirmed a phenomenon in which the taste of rice is changed when cooked water is obtained by diluting salt lake water or deep sea water at a certain rate as compared with the case of using ordinary drinking water. However, it was unclear at that time what kind of mineral ion was contained and how much and at what ratio the taste, that is, the taste improved.
[0010]
So what mechanism does mineral ions affect the taste of? Research on human taste is elucidating the mechanism by which tongue cells transmit information about taste signals to the brain, and the brain translates taste information into various tastes.
According to the latest research, human taste is expressed in four categories: salty, sour, sweet and bitter. Some researchers may add the amino acids that make up the protein as umami. Mineral ions related to salty taste, sour taste and bitterness are said to be Na, K and Ca, respectively.
[0011]
In the experiment of the present inventor, it was confirmed that the three main mineral ions (Na, K, Ca) and Mg ions have a certain ratio and the taste of cooked rice increases depending on the concentration of trace mineral ions.
That is, for the purpose of scientifically verifying the influence of mineral ions on the taste, water with various concentrations of mineral ions was prepared, and as a result of conducting a rice washing test of unwashed rice using this water as rice water, It has been clarified that the taste is improved when water prepared at a certain ratio is used for cooking rice (washless rice).
[0012]
Table 1 shows an example of the test results.
[Table 1]
Figure 0003681346
[0013]
In the test of Table 1, the rice used was non-washed rice from Niigata Koshihikari, and sample A was cooked only with purified water containing almost no minerals. In the test shown in Table 1, sample C received a high evaluation of first place with all eight evaluators in agreement. The reason was that it was sweet and the scent of cooking was good. As a result of repeating such a test while changing the mineral concentration, two conditions were obtained. One is the concentration of Na and Mg. For these two types of minerals, the improvement in taste was observed in the range of 30 to 70 ppm, preferably 40 to 70 ppm. The second was the concentration of Ca and K. For these two types of minerals, the improvement in taste was found in the range of 0.1 to 6 ppm.
[0014]
As a raw material for providing mineral ions necessary for the rice cooking water of the present invention, deep ocean water is suitable. The reason is that the concentration balance of the metal ions of Na, K, and Ca is balanced, and the cleanliness is high. However, it was also confirmed that deep sea water alone does not provide cooking water that produces an optimal taste. Therefore, when the raw water of the deep water (water collected from the deep sea with a depth of 200m or more) is diluted at a certain rate, the Na, K, Ca concentration is adjusted, and further, Mg with salt water is added in a certain amount. Cooked rice water that can cook delicious rice was obtained.
[0015]
Table 2 shows the amount of main minerals contained in Muroto deep sea water, Salt Lake saltwater lake water, saltwater lake water concentrate, and deep seawater desalted water. However, salt water and deep sea water desalted water are shown only for Na, K, Ca, and Mg.
[0016]
[Table 2]
Figure 0003681346
[0017]
As can be seen from Table 2, in deep ocean water, the Mg concentration is nearly an order of magnitude lower than Na. Therefore, if diluted as it is, it is difficult to make Mg and Na have the same concentration as described above. Therefore, when deep sea water is used as the main raw material, the concentration of Mg and Na is made equal by appropriately mixing a saltwater lake water concentrate containing Mg nearly 50 times as much as Na. be able to. In addition, when salt water is used as the main raw material, the concentration of Mg is almost one order of magnitude lower than that of Na. Therefore, the concentration of Mg and Na can be equalized by appropriately mixing the salt water lake concentrate. Can be.
[0018]
FIG. 1 shows some examples of combinations. Group A is a high-concentration rice-water concentrate suitable for business use that cooks a large amount, Group B is a low-concentration rice-concentrate cooker for business / home use that does not cook a large amount, and Group C is used without dilution. It is mainly cooking water for home use, and shows three pattern examples.
[0019]
The raw materials (1) to (5) used in each pattern example are: (1) Muroto deep sea water, (2) Salt Lake salt lake water, (3) Salt Lake salt lake water concentrate, (4) Is a deep water demineralized water obtained by subjecting a deep sea water to a desalting treatment, and (5) is a purified water containing almost no minerals, for example, produced by a water purifier using a reverse osmosis membrane.
[0020]
For example, in pattern 1 of group A, a mixture of deep ocean water 1 and brine lake water concentrate 0.1 is prepared as a rice cooking water concentrate. And when cooking this, if this is diluted with purified water to a dilution rate of 0.55%, the concentrations of Ca, Mg, Na and K are 2.12, 61.52, 55.69, 3 and 3, respectively. 0.06 (unit is mg / L).
[0021]
Moreover, in the pattern 2 of group B, what mixed in the ratio of the salt water lake water 1, the salt water lake water concentrate 1, and the deep-layer water demineralized water 12 is prepared as a rice cooking water concentrate. And in the case of rice cooking, for example, 670 cc of purified water and 5 cc of rice cooking water concentrate are added to 3 go (450 g) rice to make rice cooking water. This cooked rice water 675cc contains 0.45, 42.14, 38.64, 2.70 (unit: mg / L ) of Ca, Mg, Na, and K, respectively.
[0022]
In the example of FIG. 1, the salt water lake concentrate is used as a supply source for the lack of Mg in the case of using deep sea water as the main raw material or salt water lake water as the main raw material. Other materials can be used. For example, an aqueous solution of a natural salt made from seawater may be used.
[0023]
Furthermore, when this invented rice cooking water was used, this inventor confirmed that decaying was suppressed over a long time, and also that cooking rice changed to yellow with progress of time.
That is, as a result of conducting a fungus culture test on rice cooked with the rice cooked water of the present invention, the present inventor confirmed that the growth rate of the fungus was suppressed as compared to rice cooked with normal drinking water.
[0024]
When cooked rice is preserved, spoilage progresses due to contamination with external germs. When a general bacterial culture test was performed, as shown in Table 3, when rice cooking water to which a certain amount of mineral ions of the present invention was added was used, the growth of general bacteria was suppressed, and the rice cooking water of the present invention was spoiled. It was confirmed that there is an effect to prevent. Furthermore, when the amount of mineral ions added was increased, bacterial growth was not observed even after 9 days, and it was revealed that mineral ions have a concentration-dependent bacteriostatic action.
[0025]
[Table 3]
Figure 0003681346
[0026]
Furthermore, as a result of observing the color change (yellowing) of white rice cooked under the same conditions as in Table 3, the yellowing phenomenon of white rice was suppressed. Yellowing is thought to be due to the oxidation of lipids and proteins contained in rice. Such an oxidation reaction is considered to be caused by active oxygen. Therefore, a method of cooking rice by adding vitamin E has also been proposed. The inventors' research has revealed that the presence of mineral ions at a certain concentration or higher suppresses the generation of active oxygen, which has been elucidated as one of the action mechanisms for suppressing yellowing. On the other hand, spoilage occurs due to bacterial growth, lipid peroxidation and protein denaturation occur, and a mechanism of yellowing is also considered, and suppression of bacterial growth may suppress yellowing.
[0027]
At present, it has been confirmed that yellowing can be suppressed by the addition of mineral ions, but it is not clear whether the inhibitory effect is due to bacterial growth suppression or due to antioxidant action. However, it was clear that the yellowing suppression effect was dependent on the concentration of mineral ions.
[0028]
Furthermore, it is understood that the cooked rice cooked with this cooked water contains a certain amount of trace minerals, and has the effect of supplementing the shortage of trace minerals, which is a disadvantage of unwashed rice or white rice.
[0029]
In the above example, cooked rice was added to the non-washed rice and cooked, but even if it was ordinary white rice, it was confirmed that there was an improvement in taste when cooked using the cooked water of the present invention after rice polishing. The cooked rice water of the present invention is also effective when used with ordinary white rice.
[0030]
Further, in the above example, the rice cooking water is obtained by diluting the rice cooking water concentrate, but it is also conceivable that the concentrate is crystallized by subjecting it to a water removal treatment to form a powder or solidified state. Even in such a case, the rice cooking water of the present invention can be obtained by adding a predetermined amount of drinking water.
[0031]
【The invention's effect】
As described above in detail, the cooked rice water of the present invention contains four kinds of mineral ions (Na, Mg, Ca, K) at a predetermined blending ratio, the concentration of Na and Mg is 30 to 70 ppm, and Ca When the concentration of K and K is 0.1 to 6 ppm, the taste of rice cooked using this can be improved. In addition, it can be expected to compensate for the shortage of trace minerals that are often lacking in rice. Furthermore, the effect of suppressing the yellowing of cooked rice can be expected by extending the storage period due to the inclusion of minerals.
[0032]
In particular, since deep sea water has high cleanliness, it is not necessary to remove organic substances contained in the case of surface water, and it can be used after being diluted to a degree of filtration. And since the balance of mineral ion is constant, it can utilize as a raw material of stable rice cooking water.
[Brief description of the drawings]
FIG. 1 shows an example of making the rice cooking water and rice cooking water concentrate of the present invention by combining any of Muroto deep sea water, salt lake saltwater lake water, saltwater lake water concentrate, deep seawater demineralized water and purified water. It is a list.

Claims (7)

米を炊く際に用いる炊飯水であって4種のミネラルイオン(Na,Mg,Ca,K)を所定の配合比で含有し、NaとMgの濃度が30乃至70ppmであり、CaとKの濃度が0.1乃至6ppmであることを特徴とする炊飯水。Rice cooking water used when cooking rice, containing four kinds of mineral ions (Na, Mg, Ca, K) at a predetermined blending ratio, the concentration of Na and Mg is 30 to 70 ppm, Rice cooking water characterized by a concentration of 0.1 to 6 ppm . 海洋深層水を原料に用いた請求項1に記載の炊飯水。  The cooked rice water according to claim 1, wherein deep sea water is used as a raw material. 海洋深層水と塩水湖水濃縮液の濃度を調整して混合し作製したことを特徴とする請求項1または2のいずれかに記載の炊飯水。The rice cooking water according to claim 1, wherein the rice cooking water is prepared by adjusting the concentrations of the deep sea water and the saltwater lake water concentrate. 所定量の水を加えることにより請求項1乃至のいずれかに記載の炊飯水が得られることを特徴とする炊飯水用濃縮体。The cooked rice water concentrate according to any one of claims 1 to 3 is obtained by adding a predetermined amount of water. 濃縮体は液体または固体である請求項に記載の炊飯水用濃縮体。The concentrate for cooking rice water according to claim 4 , wherein the concentrate is liquid or solid. 米を炊く際に用いる炊飯水の製造方法であって、海洋深層水または塩水湖水を主原料とし、請求項1乃至5のいずれかの炊飯水または炊飯水用濃縮体が得られるように4種のミネラルイオン(Na,Mg,Ca,K)が所定の配合比で含有されるようにすることを特徴とする炊飯水または炊飯水濃縮体の製造方法。A method for producing rice cooking water used when cooking rice, wherein the main raw material is deep ocean water or saltwater lake water, and four kinds of rice cooking water or a rice cooking water concentrate are obtained. The mineral ion (Na, Mg, Ca, K) is contained at a predetermined blending ratio, and a method for producing a rice cooked water or a concentrate for cooked water is provided. 海洋深層水または塩水湖水の希釈水と、塩水湖水濃縮液または天然塩水溶液の濃度を調整して混合することを特徴とする請求項に記載の炊飯水または炊飯水濃縮液の製造方法。7. The method for producing cooked rice water or cooked water concentrate according to claim 6 , wherein the concentration of the deep sea water or the saltwater lake water is adjusted with the concentration of the saltwater lake water concentrate or the aqueous natural salt solution.
JP2001220663A 2001-06-15 2001-06-15 Method for producing cooked rice water, cooked rice water or concentrate for cooked rice water Expired - Fee Related JP3681346B2 (en)

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