JP3518941B2 - Seed-derived mineral composition and method for producing the same - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a seed-derived mineral composition useful as a food material, and a method for producing the same.

[0002]

2. Description of the Related Art In recent years, with the development of nutritional science, the physiological significance of minerals has been clarified, and the effects of deficiency have been clarified, and the importance of mineral intake has been recognized. However, on the other hand, problems such as insufficient intake of these minerals that were conventionally ingested due to food processing etc. are also clarified, and the development of mineral materials has attracted attention, especially those derived from natural products. There is growing interest in minerals. As minerals derived from natural products, seaweed minerals,
Bitter or whey minerals have been developed.

[0003]

However, among the natural mineral materials proposed so far, seaweed mineral has a problem that the extraction process such as ashing and acid extraction is complicated. Bitter soup has a large amount of magnesium, potassium and chlorine and has a problem with the mineral balance. In addition, since it has a strong bitterness, there are restrictions in use. Whey minerals have problems in terms of raw materials and manufacturing costs. Seeds contain not only major minerals such as magnesium and potassium, but also nutritionally important minerals such as zinc, copper, and iron in a well-balanced manner, but a large amount of phytic acid that inhibits bioavailability of minerals Until now, it has not been fully utilized as a mineral material because it is included. Phytic acid forms an insoluble salt with minerals such as calcium, which impedes the wide applicability of mineral materials. JP-A-7-879
No. 30, gazette discloses a magnesium supplement composition derived from cereal seed coat and a method for producing the same, but the extraction step is a method using an ordinary acid, and inevitably most phytic acid is also extracted at the same time. I will end up. As a method for removing phytic acid from such an extract, there is an anion exchange resin treatment, but it is not practical in terms of cost. Further, when extracting with an acid, a step of neutralization is also necessary. On the other hand, when the extraction is performed with a neutral solution, the extraction of phytic acid can be suppressed, but the extraction of minerals is not sufficient. As a technology for extracting minerals while suppressing the extraction of phytic acid, Japanese Patent Publication No. 57-39635
Japanese patent publication is disclosed. Here, when obtaining a rice bran extract used for liquor production, by extracting with a lactic acid solution containing basic calcium such as calcium carbonate, an extract containing an inorganic component and having a low phytic acid content may be obtained. Stated. However, when the amount of calcium carbonate added is 0.5% (w / w) (hereinafter abbreviated as%) or more, the extraction of phytic acid is suppressed, but the inorganic component,
Especially when the amount of magnesium extracted is not added (2,300 mg
%) Of 0.3% (70 mg%) or less. Such a mineral-containing aqueous solution for liquor production has an appropriate range of mineral content, pH, etc., such as yeast growth inhibition when the calcium content is large, and the amount of calcium salt to be added and the amount of mineral to be extracted. The range is naturally limited. Therefore, extensive studies on the amount of mineral salt added and the extraction pH have not been made.
The present invention has been made in view of such a current situation, and provides a seed-derived mineral composition having a high mineral content as a food material, particularly a high magnesium content, and a low phytic acid content, and a method for producing the same. With the goal.

[0004]

To give a general description of the invention According to an aspect of the first invention, the neutral calcium during extraction from the seeds origin material
In a mineral composition extracted by adding a salt, the ratio of magnesium: phytic acid is 0.4 or more by weight ratio, and the ratio of calcium: magnesium is 0.9 or more by weight ratio. The second invention relates to a seed-origin mineral composition which comprises:
(W / w) The above method for producing a mineral composition derived from seed, which comprises adding at least (w / w) and adjusting the pH to 4 to 5 for extraction.

As a result of intensive studies on the means for solving the above-mentioned problems, the inventors of the present invention suppressed the extraction of phytic acid from seed-derived raw materials by increasing the concentration of calcium salt and extracting under acidic conditions, Moreover, they have found that the extraction rate of mineral components, especially magnesium, does not decrease, and completed the present invention.

In the present invention, the high magnesium content extracted from the seed-origin raw material and the low phytic acid content extracted from the seed-origin raw material are compared with ordinary acid extraction, that is, acid extraction without addition of calcium salt. The seed-derived mineral composition is characterized in that the ratio of each magnesium: phytic acid extracted from the seed-origin raw material is 0.4 or more by weight ratio. Means that it is possible to obtain

The mechanism by which the extraction efficiency of minerals, especially magnesium, is not lowered by the addition of calcium salt and the extraction of phytic acid is suppressed is not completely clear, but it exists as phytin (phytate) with low solubility. mineral particular magnesium seed origin in the raw material is presumed to be solubilized by Succoth to put the exchange reaction with the added calcium. Further, it is presumed that the extraction of phytic acid is suppressed because the phytate of calcium has lower solubility than the phytate of other minerals.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be specifically described below. In the present invention, the seed-origin raw material used for extracting the mineral may be seed itself, a processed product thereof or the like, but it has been sufficiently used so far because of its high mineral content but also high phytic acid content. Non-defatted rice bran, seed meal, wheat bran, etc., which were not used, are used.

The types of neutral calcium salts to be added when extracting seed-origin minerals of the present invention include inorganic calcium salts such as calcium chloride dissolved under extraction conditions, and
Organic calcium salts such as calcium lactate are preferred, but basic calcium salts such as calcium carbonate are not preferred. In addition, the addition amount of calcium salt is 2% or more as a calcium with respect to the seed-origin raw material, and is effective.
A range of 5% is preferable. If it is less than 2%, the effect of the present invention is small, and if it exceeds 5%, the amount of residual calcium in the extract becomes large, so that it is not suitable as a magnesium material.

To extract seed-origin minerals, first, the seed-origin raw material is put into an extract containing a neutral calcium salt, and then the pH is adjusted to 4 to 5 for extraction.
When the seed-origin raw materials are later mixed, the mixed aqueous solution of the neutral calcium salt and the acid is preliminarily adjusted to pH 4-5,
There is a method in which a seed-origin raw material is charged and extracted, and any method may be used, but from the viewpoint of workability, the method is preferable.

Regarding the extraction pH, if the pH is much lower than 4, the extraction of phytic acid cannot be sufficiently suppressed, and if it is much higher than pH 5, the extraction of minerals is not sufficient. The pH may be adjusted by any method, but inorganic acids such as hydrochloric acid, sulfuric acid and phosphoric acid, or organic acids such as lactic acid, acetic acid, citric acid, malic acid, adipic acid, gluconic acid, succinic acid, tartaric acid and fumaric acid It can be done with an acid. Since gluconic acid is produced in an aqueous solution of gluconodelta lactone, it is also possible to use the lactone as the aqueous solution. The seed-derived mineral extraction method of the present invention may be any extraction method commonly used such as water extraction, hot water extraction, or hot water extraction.

There is no particular limitation on the amount of the extract liquid to the seed-origin raw material, but if it is too small, the recovery rate decreases, and conversely, if it is too large, the mineral concentration of the obtained extract liquid decreases. 5 to 10 times the amount of the extract is used. The conditions for the above extraction operation can be arbitrarily determined according to the general extraction operation for water-soluble components. More specifically, a room temperature to about 60 ° C. is adopted as the extraction temperature. If the temperature is too low, the extraction rate will decrease. On the contrary, if it exceeds 60 ° C., unnecessary components will be extracted, and the post-treatment will be troublesome. An extraction time of 30 to 60 minutes is usually sufficient.
Further, when the ratio of magnesium: phytic acid is calculated in consideration of the calcium salt addition amount range of 2% or more (FIG. 1 of Example 2) and the extraction pH 4 to 5 range (FIG. 2 of Example 3). A weight ratio of 0.4 or more is a preferable range.
When the ratio is less than 0.4, a product unsuitable as the seed-origin mineral composition of the present invention containing a small amount of magnesium and a large amount of phytic acid is obtained.

Further, the obtained seed-derived mineral composition contains calcium derived from the neutral calcium salt added at the time of extraction, and the content ratio with respect to magnesium is 2% or more of the above calcium salt addition amount range. (FIG. 1 of Example 2)
In consideration of the extraction pH range of 4 to 5 (FIG. 2 of Example 3), the calcium: magnesium ratio is 0.
A preferred range is 9 or more.

Solid-liquid separation of the above extract can be carried out by a conventional method. For example, operations such as centrifugation, squeezing, filtration, decantation, etc., and operations combining them can be exemplified. After the above operation, if necessary, pH adjustment, decolorization,
Operations such as vacuum concentration, membrane concentration, spray drying, and freeze-drying can be appropriately performed, and thus, the desired liquid form or powder form of the mineral composition can be obtained.
It should be noted that the calcium added in the extraction step partially remains in the extraction liquid, which is used as a calcium source in the mineral composition.

The seed-derived mineral composition obtained by the present invention does not impair the taste of foods, and therefore it can be used as a food as it is or as a food additive by adding it to various processed foods. it can. Such processed foods may be liquid products or solid products, and typical examples thereof include various liquid beverage products, confectionery, seasonings, soups, curries, noodles, breads, pickles, livestock meat products, dairy products. , Serial, etc. can be exemplified. The amount of the composition of the present invention added to these processed foods is not particularly limited, but is usually selected from the range of about 0.1 to 50%.

[0016]

EXAMPLES Examples of the present invention will be shown below, but the present invention is not limited thereto.

Example 1 (Effect of Calcium Addition) A 68 mM calcium chloride aqueous solution (2.7% as calcium with respect to defatted rice bran wet weight) or an equivalent amount thereof to magnesium chloride, sodium chloride or potassium chloride solution was used. , 0.01 for final pH adjustment
Hydrochloric acid was added so as to obtain N, which was used as an extraction solvent. The extraction was performed at 60 ° C. for 1 hour using an extraction solvent in an amount 10 times the wet weight of defatted rice bran. Further, the mixture was cooled and filtered to obtain a seed-derived mineral extract. Minerals were measured by the atomic absorption method, and phytic acid was measured by the HPLC method. The mineral and phytic acid contents of this extract are shown in Table 1. The measurement result was expressed as the amount of extract per 100 g of defatted rice bran wet weight.

[0018]

[Table 1]

As described above, the extraction rate of magnesium is about 2.5 by adding calcium salt to the extraction solvent.
As a result, the extraction efficiency of minerals increased overall, and the extraction of phytic acid was suppressed to 1/4 or less, and an excellent seed-derived mineral composition was obtained. Moreover, such an effect was observed only with the calcium salt, but not with the magnesium, sodium, potassium salts and the like.

Example 2 (Effect of pH on Extraction Efficiency) A 68 mM calcium chloride aqueous solution (2.7% as calcium based on the wet weight of defatted rice bran) was added to 1 wt.
The amount was added in an amount of 0 times, the pH was adjusted to 3.7 to 5.9 with hydrochloric acid, and extraction was performed in the same manner as in Example 1. The result is shown in FIG. In FIG. 1, the vertical axis represents the magnesium / phytic acid (Mg / Ph) ratio, the mineral extraction amount (mg%), and phytic acid (%) from the left, and the horizontal axis represents the extract pH. In FIG. 1, white squares represent calcium, white diamonds represent magnesium, white circles represent phytic acid, and crosses represent Mg / Ph ratio. As shown in FIG. 1, the extraction of magnesium was sufficient at pH 3.7, but phytic acid was also extracted at the same time, and the extraction of phytic acid was suppressed at pH 5.4, but the extraction of magnesium was suppressed at the same time. It was confirmed that the extraction conditions of pH 4.4 are good, and the extraction of phytic acid is suppressed, while the extraction conditions are insufficient.

Example 3 (Effect of Calcium Addition) At pH 4.4, which was the optimum extraction pH in Example 2,
The extraction conditions were examined by changing the amount of calcium added. An extraction solvent adjusted to have a calcium concentration of 0 to 4% relative to the wet weight of defatted rice bran was added in an amount 10 times the wet weight of defatted rice bran, and hydrochloric acid was added to adjust the pH to 4.4. The extraction was performed in the same manner as in Example 1. The result is shown in FIG.
In FIG. 2, the vertical axis represents the calcium / magnesium (Ca / Mg) ratio, the Mg / Ph ratio, the mineral extraction amount (mg%), and phytic acid (%) from the left, and the horizontal axis represents the calcium addition amount (g / 100 g rice bran wet weight) is shown. Further, the white square marks, white diamond marks, white circle marks, and cross marks in FIG. 2 have the same meanings as in FIG. 1, and the white triangle marks mean the Ca / Mg ratio.
As shown in FIG. 2, when the amount of calcium added is 1% or less, the amount of phytic acid extracted cannot be sufficiently suppressed, but when it is 2% or more, the amount of phytic acid extracted is sufficiently suppressed, and the amount of magnesium extracted is It was confirmed that there was almost no decrease.

Example 4 (Extraction from rapeseed meal) Using rapeseed meal, a 68 mM calcium chloride aqueous solution (2.7% as calcium relative to rapeseed meal) was used in the same manner as in Example 1 to further adjust the pH. For a final concentration of 0.
01N hydrochloric acid was added to serve as an extraction solvent. The extraction was performed at 60 ° C. for 1 hour using an extraction solvent in an amount 10 times that of rapeseed meal.
After cooling and filtration, a seed-derived mineral extract was obtained. Minerals are measured by atomic absorption method, phytic acid is HP
It was measured by the LC method. The mineral and phytic acid contents of this extract are shown in Table 2. The measurement result is rapeseed residue 1
The amount of the extract was expressed with respect to 00 g.

[0023]

[Table 2]

Also in rapeseed meal, the addition of calcium salt increased the extraction efficiency of minerals and suppressed the extraction of phytic acid, and an excellent seed-derived mineral composition was obtained.

Example 5 (Effect of Addition of Calcium Lactate) An aqueous solution of 68 mM calcium lactate was used, and hydrochloric acid having a final concentration of 0.01 N was further added as an extraction solvent for pH adjustment. Extraction was performed using 10 times the amount of extraction solvent of defatted rice bran.
It carried out at 1 degreeC for 1 hour. The extract was filtered to obtain a seed-derived mineral extract. Minerals were measured by the atomic absorption method, and phytic acid was measured by the HPLC method. The contents of minerals and phytic acid in this extract are shown in Table 3. The measurement result was represented by the amount of the extract per 100 g of defatted rice bran.

[0026]

[Table 3]

Calcium lactate was also shown to have an effect of enhancing the extraction efficiency of minerals such as magnesium and suppressing the extraction of phytic acid, and an excellent seed-derived mineral composition was obtained.

[0028]

[Effects of the Invention] In order to effectively use seed-origin raw materials that have not been used sufficiently as mineral sources,
By adding a calcium salt, harmful phytic acid can be reduced, and the extraction efficiency of useful minerals, especially magnesium can be increased by a simple process, and a useful seed-derived mineral composition can be obtained.

[Brief description of drawings]

[Fig. 1] pH of extract and mineral extraction amount of defatted rice bran,
It is a figure which shows the relationship with and its composition ratio.

FIG. 2 is a diagram showing the relationship between the amount of calcium added, the amount of mineral extracted from defatted rice bran, and its composition ratio.

─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-B-57-39635 (JP, B1) (58) Fields investigated (Int.Cl. ⁷ , DB name) A23L 1/304 A23L 1/10 A23L 1 / 36

Claims (2)

(57) [Claims] 1. A neutral calciu when extracted from seed-origin raw material.
In the mineral composition extracted by adding sodium salt, the ratio of magnesium: phytic acid is 0.4 or more by weight ratio, and the ratio of calcium: magnesium is 0.9 or more by weight ratio. A seed-derived mineral composition comprising: 2. A feature of adding 2% (w / w) or more of a neutral calcium salt to a seed-origin raw material wet weight at the time of extracting seed-origin minerals and adjusting the pH to 4-5. The method for producing a seed-derived mineral composition according to claim 1.