JPH088838B2 - Manufacturing method of boiled noodles - Google Patents

Description

The present invention relates to a method for producing boiled noodles in which noodles are boiled with electrolytic acidic water containing sodium chloride such as sodium chloride. Regarding the method to generate well.

[Problems to be Solved by the Invention]

It is known that when noodles are boiled with acidic water, the noodles are boiled with a strain due to the astringent action of the acidic water.

For this reason, alum is generally added to raw water to adjust the pH value at the time of boiling to about 5 as a means of making the treated water in the boiling pot acidic.

However, boiled noodles boiled by adding alum to the raw water of the boiler can not be shipped as additive-free foods, and with the addition of alum, the treated water has a pH value of only about 5, and pH values below that. Acidic water is difficult to obtain.

Although it is possible to use acidic water obtained by electrolyzing water, the desired treated water cannot be obtained simply by electrolyzing raw water.

That is, when a large amount of carbonic acid is dissolved in the raw water used, the pH of the electrolytic acidic water remarkably returns during the heating process, and
Not only does the pH not be maintained below 5, but when the hardness component of the raw water is high, calcium precipitation becomes noticeable on the cathode side.

Further, when the raw water has many hardness components and the pH value is high, it becomes difficult to lower the pH value to a desired value by electrolysis.

Further, an electrolyte is usually added to obtain electrolyzed acidic water, but depending on the type of the electrolyte, the quality of boiled noodles may deteriorate even if the pH value can be cleared.

An object of the present invention is to provide a means for producing sodium chloride-added electrolyzed acidic water that can cope with raw water of various water qualities, thereby providing a method for producing boiled noodles that is of good quality and can be shipped as an additive-free food.

[Means for solving the problem]

The above-mentioned object of the present invention is to subject raw water such as ground water and tap water to carbonic acid deaeration, and ion-exchange the resulting deaerated water with a H ⁺ type cation exchange resin. It is achieved by adding sodium chloride to the mixed water of treated water and raw water, electrolyzing so that the pH of the electrolyzed water generated on the anode side will be 6.0 or less, and boiling the raw noodles with this electrolyzed acidic water. . The amount of sodium chloride added is preferably 50 to 150 mg / l.

[Operation of the invention]

If a large amount of carbonic acid is dissolved in the raw water used, electrolytic acid water returns significantly in the heating step when boiling the noodles, and if the hardness component of the raw water is high, the cathode side of the electrolytic water generator ( Calcium precipitates on the alkaline water side), causing troubles, but the present invention solves this problem by removing the carbonic acid of the raw water by aeration or the like.

H ⁺ of all or part of the degassed water produced by the above
By performing the ion exchange treatment with the type ion exchange resin, cations such as calcium ion and magnesium ion in the water are replaced with hydrogen ion H ^+, and the conductivity, hardness and pH value are lowered. Therefore, even with water having a particularly high hardness component and a high pH value, the pH is lowered by performing this treatment, and acidic water having a lower pH value can be easily obtained in the subsequent electrolysis.

In addition, the hardness component is decreased, and the conductivity is lowered.
The amount of Cl) added can be increased.

When treated with a Na ⁺ type ion exchange apparatus, the hardness component in water decreases, but the electric conductivity increases on the contrary, so that it is impossible to add another electrolyte (NaCl in the present invention). In the present invention, this problem is cleared because H ⁺ type cation exchange is performed.

Further, in the present invention, the water introduced into the electrolyzer can be adjusted to a desired water quality by adding and mixing raw water in a desired ratio to the ion-exchange treated water.

Electrolyte in water is removed by the ion exchange treatment,
Since the conductivity is low, the pH of acid water during electrolytic treatment
It is necessary to newly add an electrolyte for electrolysis in order to lower the value of.

In this case, it is important to select the electrolyte to be added that suits the purpose.

As a result of the experiment, it was found that it is best to add sodium chloride NaCl as an electrolyte as the treated water for boiling the noodles, and the finished noodles have good gloss, firmness, and good yield.

When the noodles are boiled using the acidic water generated as described above, the pH at the time of boiling is 6 or less, preferably 3 to 3 without using alum.
It can be suppressed to about 4, and the high quality boiled noodles can be finished as described above.

Example of Invention

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a flow sheet of an acidic water generator used for boiling noodles in the present invention, where 1 is a carbon dioxide deaerator and 2
Is a cation exchange device using H ⁺ cation exchange resin, 3
Is a pump 4, and the cathode 4a and the positive electrode 4b are partitioned by a diaphragm 4c for electrolysis into a cathode chamber 4d and an anode chamber 4e, and both electrode chambers 4d, 4 are provided on one side.
A pair of electrolyzed water drainage ports 4g, 4 each having a water inlet 4f communicating with e and independently communicating with the cathode chamber 4d and the anode chamber 4e on the other side.
water electrolyzer having h, 5 is a storage tank for electrolyzed acidic water, 6
Is a water storage tank for electrolyzed alkaline water, 7 is a main supply piped from the raw water supply unit to the water supply port 4f of the water electrolysis device 4 through the carbon dioxide degassing device 1 (H ⁺ type) cation exchange device 2 and pump 3. A water pipe, 8 is a bypass connected from the main water supply pipe 7 between the carbon dioxide deaerator 1 and the cation exchange device 2 to the main water supply pipe 7 between the cation exchange device 3 and the pump 3, and 9 is a water amount adjusting valve. 10a
Is an acidic water drainage pipe from the acidic water drainage port 4g of the electrolysis device 4 to the acidic water storage tank 5, and 10b is an alkaline water drainage pipe from the alkaline water drainage ports 4h and 4i of the electrolysis device 4 to the alkaline water storage tank 6. Is.

As the acidic water for boiling noodles used in the method of the present invention, as shown in the figure, raw water such as ground water or tap water is removed by the carbon dioxide deaerator 1.
Degas in.

Then, a part or all of the degassed water is replaced by the ion exchange device
Ion exchange with H ⁺ cation exchange resin. That is,
Cations such as calcium ions and magnesium ions in water are replaced with hydrogen ions H ⁺ , whereby the hardness component of water is removed, and the conductivity, alkalinity and pH value are lowered.

When all the water is ion-exchanged, the treated water may be introduced into the electrolysis device 4 as it is, but when a part of the water is ion-exchanged, the untreated water that has passed through the bypass 8 is mixed with this to obtain a desired water quality. After being adjusted to, it is introduced into the electrolysis device 4.

In any case, before introducing into the water supply port 4f of the electrolysis device 4 or inside the electrolysis device 4, the introduced water contains sodium chloride Na
Add sodium chloride such as Cl. This addition of NaCl, of course, increases the conductivity of water and acts as an electrolyte for lowering the pH of electrolyzed acidic water to a desired value, but it does not stop there, gloss, strain, and yield. It is a substance that has been reached as a result of various studies in order to achieve the object of the present invention to boil it into good and high quality noodles.

By the way, when sodium sulfate Na ₂ SO ₄ is added as an electrolyte, the pH of electrolyzed acidic water can be lowered to a desired value.
Boiled noodles with high quality as when Cl is added cannot be obtained. This has been confirmed by experiments.

Then, the water added with NaCl as described above is introduced into both electrodes 4a, 4b of the electrolysis device 4 and both electrodes 4a, 4b of the electrolysis device 4 are introduced.
By electrolyzing by applying a DC electrolysis voltage to the electrode, electrolyzed acidic water having a pH of 6 or less, preferably pH 3 to 4, is obtained from the anode chamber through the electrolyzed water drainage pipe 10a.

Next, an experimental example of the above-mentioned electrolytic acidic water producing step and noodle making treatment with the obtained acidic water is shown below.

(1) Raw water (ground water) pH 5.30 EC 314 μs / cm TH (total hardness) 151.2ppm Ca ²⁺ 52.5ppm Mg ²⁺ 4.9ppm 4.3Bx (alkalinity) 2.42me / l 8.3Ax (acidity) 0.66me / l Cl ^{- 15.2ppm} (2) to the raw water carbonated deaerated to obtain a degassed water below.

pH 8.10 EC 314 μs / cm TH (total hardness) 151.2ppm Ca ²⁺ 52.5ppm Mg ²⁺ 4.9ppm 4.3Bx (alkalinity) 2.42me / l 8.3Ax (acidity) 0.03me / l Cl ^- 15.2ppm (3) This The water quality of the deaerated water that was ion-exchanged with the H ⁺ -type cation exchange resin and the water that was passed through the bypass without ion exchange at a mixing ratio of 1: 1 was as follows.

pH 5.0 TH 80.0ppm Ca ²⁺ 33.7ppm Mg ²⁺ 3.9ppm Cl ^- 15.9ppm Na ⁺ 3.4ppm (4) Addition of NaCl To the water of the above (3), NaCl was added at a rate of about 90 mg / l.

(5) Electrolysis The water of (4) above is passed through both electrode chambers of the electrolyzer and electrolyzed at an electrolysis voltage of 160V and an electrolysis current of 30A, and the alkaline side electrolyzed water and the acidic side electrolyzed water at a flow rate ratio of 1: 2. Drained.

(6) The quality of the produced acidic water was as follows.

pH 2.9 TH 67.0ppm Ca ²⁺ 24.4ppm Mg ²⁺ 1.5ppm 4.3Bx −me / l 8.3Ax 2.4me / l Cl ⁻ 111.8ppm Na ⁺ 29ppm In addition, alkaline water showed pH 10.

(7) Boil the electrolyzed acidic water with NaCl generated above into a kettle and heat it to 99 ° C.
It was boiled and rinsed with cold water to obtain a boiled noodle product.

This product was a very good quality noodle with gloss and elasticity, and was also excellent in terms of yield.

Considering under the same conditions, pH value of 3.4 was obtained for the acidic water electrolytically produced by adding sodium sulfate instead of NaCl, but of the boiled noodles more than when adding NaCl directly to the raw water to adjust the pH to 6.2. The quality was poor. From this, it is suggested that chloride ions may contribute to the improvement of the quality of the product in the present invention.

〔The invention's effect〕

INDUSTRIAL APPLICABILITY The present invention can be provided as a high-quality additive-free food since the noodles are boiled with acid water having a pH of 6 or less without using alum by using the sodium chloride-added electrolyzed acidic water produced in the above process.

In addition, the acidic water used can be adjusted to a desired water quality by degassing, H ⁺ cation exchange, and raw water mixing, so that it can be applied to raw water of various water qualities, and the desired electrolyte can be added to the water after ion exchange. Since it is added and electrolyzed, the amount of electrolyte added can be increased and efficient electrolysis can be performed.

Further, according to the present invention, noodles are boiled with electrolytic acid water containing NaCl as an electrolyte, so that high quality noodles can be finished.

[Brief description of drawings]

The figure is a flow sheet for producing sodium chloride-added electrolyzed acidic water used in the present invention. 1 ... Carbon dioxide deaerator, 2 ... H ⁺ type cation exchanger, 3
…… Pump, 4 …… Water electrolysis device, 5 …… Electrolytic acidic water storage tank, 7 …… Main water supply pipe, 8 …… Bypass, 9 …… Water volume control valve, 10a, 10b …… Electrolyzed water drainage pipe .

Claims (2)

[Claims] 1. Raw water such as ground water or tap water is subjected to carbonic acid deaeration treatment, and the resulting deaerated water is subjected to ion exchange with a H ⁺ type cation exchange resin. This ion exchange treated water or the ion exchange treated water A method for producing boiled noodles, characterized in that sodium chloride is added to a mixed water of raw water and electrolyzed so that the pH of the electrolyzed water becomes 6.0 or less, and the raw noodles are boiled with this electrolyzed acidic water. 2. Sodium chloride as sodium chloride
50-150 mg / l is added, The method for producing boiled noodles according to claim (1).