JP2001224326A - Bean curd using bittern derived from marine deep water and method for producing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain bean curd richly containing active minerals in good balance, and to provide a method for producing the bean curd. SOLUTION: This soybean curd is obtained by the following process: concentrating marine deep water taken from the deep sea of >=200 m depth under the surface of the sea through a membrane treatment such as a reverse osmosis membrane method or an electrodialysis, or another method such as a superheating evaporation method or the like, separating sodium chloride from the thus obtained concentrate to produce bittern, and thereafter admixing soymilk with the thus produced bittern to coagulate the resultant mixture.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to tofu containing an effective mineral component in a well-balanced and abundant manner. The present invention also relates to a tofu using colorless and transparent bitter bitumen prepared from deep ocean water taken from deep water 200 m or less below the sea surface, and a method for producing this tofu.

[0002]

2. Description of the Related Art Minerals are constituents of the body and are involved in physiological and metabolic regulation, and some are also activators of enzymes. Therefore, the importance of mineral intake into the human body has been pointed out. , These minerals are, as essential elements, calcium (Ca), phosphorus (P), sulfur (S), potassium (K), sodium (Na), chlorine (Cl), magnesium (Mg) (above, ordinary element), Iron (Fe),
Zinc (Zn), silicon (Si), manganese (Mn), copper (Cu), boron (B), molybdenum (Mo), selenium (Se), iodine (I), chromium (Cr), cobalt (C
o), nickel (Ni), vanadium (V) arsenic (A
s) (above, trace elements). The standardized intake of minerals for a total of 13 of the above-mentioned elements is defined in the sixth revised edition of the required nutritional requirements of the Japanese, formulated by the Ministry of Health and Welfare. Therefore, in recent years, mineral supplements and beverages have been increasing year by year as dietary supplements, and are used for supplementing minerals that cannot be supplemented only by meals. However, these dietary supplements are processed and concentrated to increase the content of nutrients, so that they are foods that can be appropriately consumed in small quantities. For this reason, erroneous intake may adversely affect the human body due to excessive intake.

[0003] Tofu has long been used as a coagulant, as a coagulant, bittern (bittern), which is a by-product of salt production. Since this bitter contains a large amount of minerals from seawater, it is widely known as a health food. ing. However, conventional seawater used for salt production is surface water, that is, seawater near the so-called ocean surface layer, and this surface water is caused by oil spills caused by drainage from homes and factories, ship accidents, etc., and also from nuclear materials. Pollution is progressing due to pollution. Bitter juice produced by using this contaminated surface water to remove sodium chloride is enriched in minerals and is rich in many minerals, but at the same time it may contain concentrated contaminants. There is. For this reason, bitches collected from open seawater with low pollution are also used, but they are not sufficiently satisfactory with respect to pollution.

[0004] Further, although this bitter contains a large amount of minerals as described above, the balance of minerals suitable for the body is not sufficient. In recent years, seawater has been noted that it contains a large amount of minerals essential for the human body, of which deep ocean water is free of pollution and has unique properties, so it has also been used for mineral supplements and drinks. ,
Japanese Patent Application Laid-Open No. H11-32715 discloses an attempt to utilize this deep sea water in tofu production, but this technique involves adding the deep sea water itself to a soymilk tank or a coagulant, Deep sea water has a limited amount of sodium chloride as its main component is salty and has a limited amount of salt.If it contains a large amount of effective minerals, there is a possibility of excessive intake of salt, Without saltiness, its effective mineral content is significantly lower than the amount of effective minerals required by the human body.

[0005]

An object of the present invention is to obtain a clean, mineral-rich tofu by using bittern obtained from deep sea water. That is, the present invention contains an effective amount of effective minerals that are in short supply in recent years and contains no contaminants.
It is an object of the present invention to provide a flavorful tofu which can be ingested on a daily basis and which is not likely to be overdose, and a method for producing the same.

[0006]

Means for Solving the Problems The present inventor has conducted intensive studies to solve the above-mentioned problems. As a result, deep ocean water at a depth of 200 m or less, particularly 300 m or less below sea level, has been taken for a long time at a water pressure of 30 atm. It is formed seawater, has no convection or mixing with surface water, has a stable property of about 10 ° C or less throughout the year, is rich in inorganic nutrients such as nitrogen, phosphorus, silicic acid, etc., compared with surface water. (Fe), iodine (I), copper (Cu), manganese (M
n), zinc (Zn), cobalt (Co), molybdenum (Mo), selenium (Se), chromium (Cr), tin (S
n), vanadium (V), fluorine (F), silicon (S
i), essential trace elements such as nickel (Ni) and arsenic (As) and various minerals are contained in a well-balanced manner.

[0007] Moreover, bitter water obtained from the deep sea water is clean and has a very low level of dissolved organic matter and is extremely clean from a microbial point of view, especially a harmful microbial point of view. Focusing on the fact that the above components are concentrated, they have found that the above problem can be solved by using this bittern as a coagulant for tofu.

In the present invention, as described above,
By using bitumen obtained from deep sea water deeper than 300 m, especially deep sea water deeper than 300 m as a raw material as a coagulant for tofu, inorganic minerals and effective minerals such as trace elements necessary for the human body can be obtained in a well-balanced and large amount. Thus, it is possible to obtain rich and nutritious tofu containing no contaminants.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The tofu of the present invention is obtained by immersing soybeans in water overnight to add water, and then adding water to grind the soybean soup. Then
After heating the soup, it is filtered to separate solid okara, soy milk is obtained as a liquid. The bitterness obtained from deep sea water is added to this soymilk to coagulate the soymilk to obtain tofu. The bitter used in the present invention is 20
It can be produced in the same manner as bitterness produced as a by-product of the salt production process from ordinary seawater using deep ocean water at a depth of 0 m or less as a raw material. Considering the total balance of minerals, 30 below sea level
Deep ocean water below 0 m is suitable. The bittern obtained by the above method used in the present invention is colorless and transparent. That is, in the conventional method for producing bittern using ordinary surface water as a raw material, it is difficult to obtain clean bittern because it is colored brown due to the influence of impurities such as organic substances and rust. Bitter must be separated from deep water. Therefore, reverse osmosis (RO)
A method that does not involve organic substances from outside the system using a membrane separation method such as a membrane or electrodialysis is used. In the case of the heating evaporation method, it is preferable to use a container that does not involve impurities from a heating container. The bittern thus obtained is colorless and transparent because it does not contain impurities such as organic substances and rust.

The concentration of the deep sea water is preferably performed until the concentrate becomes 1/10 or less of the weight of the deep sea water before concentration. If the concentration is more than 1/10, the bitumen contains a large amount of sodium chloride, The tofu becomes salty and there is a possibility of excessive intake of salt. Hereinafter, embodiments of the present invention will be specifically described based on examples, but the present invention is not limited to these examples.

[0011]

EXAMPLE Deep sea water taken from 300 m below sea level is subjected to reverse osmosis membrane treatment, separated into fresh water and concentrated water (brine), and the concentrated water is reduced to 1/20 of the weight of the deep sea water before concentration. It was concentrated by heating. After cooling the obtained concentrate to precipitate sodium chloride, the precipitate was separated by filtration to obtain a colorless and transparent bitter of 32.9 ° Be.
The main elements and effective minerals of this bitter are shown in Table 1.
The values in the table are shown by weight% and ppb (μg / kg).

[0012]

[Table 1] Analytical values of main elements and effective minerals of bitter ──────────────────────────────── Measurement elements Measurement resultsマ グ ネ シ ウ ム Magnesium (Mg) 5.10% ──────────ナ ト リ ウ ム Sodium (Na) 2.56% ────────────────────鉄 Iron (Fe) 940ppb ──────────────────────────────── Copper (Cu) 1200 ppb {Zinc (Zn) 1800 ppb}沃 Iodine (I 6000 ppb selenium (Se) 440 ppb ──────────────────── Chromium (Cr) 470 ppb ───────────────────────── ─────── Molybdenum (Mo) 510 ppb ────────────────────────────────

The above analysis values were measured by the following method. Magnesium (Mg): Measured by EDTA titration. Sodium (Na): Measured using an atomic absorption spectrometer (manufactured by PerkinElmer Japan). Iron (Fe), copper (Cu), zinc (Zn), iodine (I),
Selenium (Se), chromium (Cr), molybdenum (M
o): Inductively coupled plasma mass spectrometer (Yokogawa Electric Corporation)
Was used for the measurement.

[0014] Tofu is produced by immersing soybeans in water overnight, adding water and grinding to obtain a soybean soup according to a conventional production method.
After heating this go soup, it was filtered to separate solid okara soy milk. 0.7 parts by weight of the above bittern was added to 100 parts by weight of this soy milk to produce tofu. Table 2 shows the amount of effective minerals contained in 100 g of this tofu.

[0015]

[Table 2] Effective minerals per 100g of tofu ──────────────────────────────── Effective minerals Effective minerals ──ナ ト リ ウ ム 17.80 mg of sodium (Na) ───────────── ─────────────────── Iron (Fe) 0.65μg ──────────────────────── ──────── Copper (Cu) 0.83 μg ──────────────────────────────── Zinc (Zn ) 1.25 μg iodine (I) 4.17 μg ───────────────────────── Selenium (Se 0.31μg ──────────────────────────────── Chromium (Cr) 0.33μg ──────────────────────── Molybdenum (Mo) 0.35μg ─────────────────── ─────────────

As shown in Table 2 above, the tofu of the present invention contained effective minerals in a well-balanced manner and was excellent in flavor.

[0017]

As described above, the present invention makes use of the characteristics of deep sea water, and has a good balance of abundant effective minerals, and is free of pollutants and has excellent nutrition and rich tofu. Therefore, the effective mineral can be taken on a daily basis without the possibility of overdose of the effective mineral.

Claims (3)

[Claims] 1. A tofu using bittern derived from deep sea water, characterized by using bitter produced from deep sea water 200 m below sea level as a coagulant. 2. The colorless and transparent bitter liquid obtained by removing the salt by concentrating the deep sea water obtained from the deep sea 200 m or less below sea level by reverse osmosis membrane treatment, electrodialysis method or heat evaporation method. The tofu using bitter derived from deep sea water according to claim 1, wherein the tofu is used. 3. Deep sea water taken from deep sea 200 m below sea level is concentrated by a reverse osmosis membrane method, an electrodialysis method or a heat evaporation method, and sodium chloride is separated from the concentrated liquid to produce bittern. A method for producing tofu using bitter derived from deep sea water, wherein the bitter is mixed with soy milk and coagulated.