KR20190143138A - Manufacturing method of mulberry soybean curd and mulberry soybean curd using the same - Google Patents

Abstract

The present invention relates to a method for preparing a mulberry soft tofu and a mulberry soft tofu prepared by using the same. The method of the present invention comprises: a first step of heating soybeans to obtain a soybean milk solution; a second step of preparing a base tofu after inputting a coagulant to the soy milk solution, and compressing and molding the same; a third step of preparing a mulberry coloring concentrate containing cyanidin-3-glucoside (C3G) and removed with a solid after preparing the mulberry coloring concentrate by concentrating a solution obtained by inputting ethanol and acid to a mulberry and extracting and filtering the same, and then mixing and immersing the same with/in water; and a fourth step of preparing a mulberry base tofu by inputting and immersing the base tofu prepared in the second step in the mulberry coloring concentrate removed with the solid prepared in the third step. According to the present invention, an antioxidant component can be taken by using the mulberry coloring concentrate maximally containing a stabilized cyanidin-3-glucoside (C3G) component, and functional properties and physical properties such as taste, color, fragrance, etc. are excellent. Especially, a color is beautifully expressed, thereby preparing a pack tofu which can be preferred by consumers while maintaining a texture of a base tofu.

Description

Manufacturing method of mulberry soy bean curd using mulberry soybean curd and mulberry soybean curd using the same

The present invention relates to a method for preparing tofu tofu and tofu prepared using the same, more specifically, by using an antioxidant pigment concentrate containing the maximum amount of stabilized cyanidin-3-glucoside (C3G) component antioxidant components In addition to ingestion and excellent sensory properties and physical properties, and beautiful colors that can be favored by consumers while maintaining the texture of all parts of the tofu can be manufactured and tofu manufacturing method using tofu It is about.

Tofu (bean curd) is a food made by soaking soybeans in water, heating the liquid to squeeze the sesame, and adding coagulant to harden it.

These tofu are sold in the shape of all tofu, pack tofu, etc. All of them are made by cutting the hardened tofu into squares, and the texture is soft, so it is good to eat immediately, but it is difficult to keep for a long time. Applicable as

In this regard, pack tofu is sold after being processed in packs for long-term storage.

Although the pack tofu is longer than the tofu, the texture may be slightly lower than that of the tofu.

Audi is a fruit of the mulberry or wild mulberry, which belongs to the mulberry family, and begins to ripen from late spring to early summer. Audi contains a large amount of vitamins and other functional ingredients such as anthocyanins, rutin, GABA, DJ and Resveratrol, which are known to prevent aging by removing free radicals. It is known as a healthy food.

Among them, anthocyanin in water means water-soluble pigments present in the fruits, leaves, stems, or roots of various fruits and vegetables, such as grapes, strawberries, blueberries, red cabbages, and purple sweet potatoes. It is not only contributing to pollination and pollination of pollen by attracting birds and algae, but also has various physiological activities such as anti-aging, treatment of diabetic retinopathy, improvement of vision, and antioxidant activity. It is spotlighted as a material.

In particular, cyanidin-3-glucoside (C3G), a form of anthocyanin pigment contained in a large amount of Audi, is known to be excellent in antioxidant activity among various pigments, and it is 7 times higher than tocopherol which has an anti-aging effect. It shows an inhibitory effect, and the weight of Audi's cyanidin-3-glucoside is 23 times that of grapes and 2.3 times that of colored rice.

However, such a C3G pigment has a problem of discoloration easily during processing due to the instability of the pigment itself. In order to stabilize Audi's C3G pigment and apply it to tofu processing, manufacturing a pack tofu while maintaining the texture of all parts requires a lot of research.

1. Republic of Korea Patent Publication No. 10-2013-0022256 (Name of the invention: Audi tofu) 2. Republic of Korea Patent No. 10-1651944 (Name of the invention: a method of manufacturing colored tofu containing natural pigments and colored tofu prepared through the same)

An object of the present invention is to use antioxidant pigment concentrate containing the maximum amount of stabilized cyanidin-3-glucoside (C3G) component, and to consume antioxidant properties and at the same time, excellent sensory properties and physical properties such as color, taste, and aroma. In particular, the present invention is to provide a manufacturing method of tofu and tofu prepared using the same, while maintaining the texture of all parts while showing the beautiful colors and consumers can prefer.

In order to achieve the above object, the manufacturing method of all parts of the Audi is a first step of heating soybean milk to obtain soymilk, a coagulant is added to the soymilk, and then produced by the tofu, and then compressing and molding the second to manufacture all parts. Step, the ethanol and the acid in the ethanol extract, and then filtered and concentrated the filtered solution to prepare an orange pigment concentrate, and all the parts prepared in the second step and the pigment dye concentrate prepared in the third step It is characterized in that it comprises a fourth step of preparing all parts of the Audi by immersing in the mixed solution mixed with water.

The acid of the third step is characterized in that 0.03 ~ 0.08 parts by weight of citric acid based on 100 weight of the ethanol, the ethanol of the third step is characterized in that 100 to 300 parts by weight based on the 100 weight of the audio.

In addition, when preparing the tofu of the fourth step, the water is characterized in that the 50 to 150 parts by weight based on the 100 parts by weight of the whole part is prepared and produced, the audio pigment concentrate is 2 ~ based on the 100 parts by weight of all parts It is characterized by the addition of 10 parts by weight.

In another embodiment of the present invention, the manufacturing method of the Audi pack tofu is characterized by further adding a fifth step of manufacturing the pack tofu after putting the immersed state in a container after manufacturing all of the fourth parts of the fourth stage. .

Technical problems to be achieved by the present invention are not limited to the above-mentioned technical problems, and other technical problems not mentioned above may be clearly understood by those skilled in the art from the following description. There will be.

In accordance with the present invention, the antioxidant component can be ingested by using an audio pigment concentrate containing the maximum amount of stabilized cyanidin-3-glucoside (C3G), and the sensory properties and physical properties such as taste, color, and flavor are excellent. In particular, the present invention provides a manufacturing method of an audio tofu and a tofu manufactured using the same, which can be manufactured while maintaining the texture of all parts while exhibiting a beautiful color.

1 is a view showing a manufacturing process diagram of all the audio parts of the present invention.
Figure 2 is a view showing the manufacturing process of the Audi pack tofu of the present invention.
Figure 3 is a view showing the shape of all parts of the Audi according to the addition by weight of the Audi pigment concentrate of the present invention.
Figure 4 is a view showing the shape of the seventh day storage of the Audi pack head of the present invention.

Hereinafter, the present invention will be described in detail, and detailed descriptions of well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted.

The present invention relates to a manufacturing method of tofu and tofu prepared using the same, more specifically targets the audio containing the C3G component itself, specific manufacturing process that can be maximized while stabilizing the C3G component As a result, the antioxidant component can be consumed using the audi pigment concentrate containing the maximum amount of stabilized cyanidin-3-glucoside (C3G), and the sensory properties and physical properties such as taste, color, and aroma are excellent. In particular, it is characterized by the manufacture of Audi tofu, which can be manufactured while keeping the texture of all parts while showing the beautiful colors and consumers can prefer.

Hereinafter, the manufacturing method of the tofu of the present invention will be described in detail based on the bar shown in FIGS.

Step 1) Preparation of Soymilk (S1)

First, soybean is heated to obtain soymilk

In this step, in the soybeans, soybeans are placed in soybeans with 3 to 5 times the amount of purified water and soaked, and then heated at 90 to 110 ° C for 10 to 30 minutes to separate soy milk and soy milk, or usually soybean powder. After the preparation in the form, 3 to 5 times the amount of purified water based on the weight of the soybean powder, and then heated to 90 to 110 ℃ for 10 to 30 minutes to separate the soy and soy milk.

At this time, if the steaming condition is out of the nutrients of soy milk or soybeans are not cooked enough, there is a risk that the soybean itself tastes stiff, it is preferable to apply the processing conditions as possible.

Step 2) manufacturing all parts (S2)

In this step, a coagulant is added to the soymilk, and then prepared as pure tofu.

At this time, the coagulant may be used any one or more selected from CaSO 4, MgCl, GDL (Glucono delta lactone), TC (Transglutaminase), the coagulant is characterized in that 0.01 to 0.5 parts by weight based on 100 weight of the soymilk If less than 0.1 part by weight, the content of coagulant is too small to make all parts molding itself. If the content is more than 0.5 parts by weight, the coagulant is too hard to be too hard to feel the texture of both parts.

Step 3) Preparation of Audi Pigment Concentrate (S3)

Ethanol and acid were added to the Audi, and the resultant was filtered, and the filtered solution was concentrated to prepare an OD pigment concentrate.

In other words, Audi contains cyanidin-3-glucoside (C3G) substance, which is a form of anthocyanin pigment, and this cyanidin-3-glucoside (C3G) substance has an antioxidant effect and is beneficial to human body. Due to its instability, there is a problem of discoloration easily during processing. Therefore, in order to stabilize the C3G material, in this step, a technique known in Korean Patent Registration No. 10-0842448, “Method for preparing cyanidin-3-glucoside derived from Audi, using food coloring powder”, filed by the inventor of the present invention. Apply.

At this time, the ethanol used in this step is more preferably 50 to 95% (v / v) of ethanol, characterized in that 100 to 300 parts by weight based on 100 parts by weight of the audio, that is, the type of ethanol If ethanol below 50% (v / v) is used, the concentration of ethanol is so low that not enough C3G material is extracted, and if ethanol above 95% (v / v) is used, the concentration of ethanol is rather high. C3G component is destroyed, and when the ethanol content is added less than 100 parts by weight, the audio is not sufficiently locked so that the C3G material is not extracted sufficiently. C3G material extraction is difficult to expect, which is not economically feasible.

In addition, the acid is more preferably applied citric acid, the citric acid is preferably applied to 0.03 ~ 0.08 parts by weight based on 100 weight of ethanol.

At this time, when the citric acid is used in less than 0.03 parts by weight of the C3G material is not extracted enough it is difficult to manufacture an Audi tofu exhibiting the beautiful color desired by the present invention, when exceeding 0.08 parts by weight rather than tofu of citric acid itself The taste itself will be degraded.

In addition, as the applied extraction method, it is preferable to perform extraction by hand work or to apply a shaking extraction method. In other words, by hand woven by hand to prepare the extract, in the case of shaking extraction is made for 2 to 5 ℃ at 20 to 25 hours, if the temperature and time out of the C3G content is not extracted enough, rather Destruction makes it difficult for the present invention to achieve the desired effect.

Step 4) manufacturing all parts of Audi (S4)

In this step, all of the ordinary parts prepared in the second step are immersed in the mixed solution of the mixed mixture of the Audi pigment and water prepared in the third step to prepare all parts of the Audi.

In other words, if the audio dye concentrate is simply added to the normal all-part production process of the second step, there is a fear that the present invention will not achieve the desired effect.

Thus, in order to prepare all parts of the organs having excellent organoleptic properties and physical properties while maintaining the components of the C3G, all the parts must be prepared in general, and then immersed in the mixed solution of the dye mixture and water to be immersed. It must go through a process, which is an essential condition for obtaining the desired effect of the present invention.

At this time, the water is characterized in that the cold water, that is, to apply a low temperature of 4 ~ 5 ℃, which is to prevent the pigment loss of the pigment dye concentrate in the manufacturing of all the following at the same time long-term storage after packing during the manufacturing of the pack tofu For the purpose of water, it is best to apply cold water as described above.

In addition, the water is characterized in that 50 to 150 parts by weight based on 100 parts by weight of all parts, when the content of the water is contained less than 50 parts by weight all parts are not evenly submerged because all parts of the pigmentation is partially made beautiful color It is difficult to represent evenly, and if it exceeds 150 parts by weight, there is a disadvantage that the content of water is too much so that the amount of C3G that is finally discarded during the production of all parts increases.

In addition, the audio dye concentrate is characterized in that 2 to 10 parts by weight based on 100 parts by weight of the total weight of the second step, as shown in Figure 3 when contained less than 2 parts by weight of the color of both parts of the consumer is not beautiful If their preference is not high and exceeds 10 parts by weight, the color of the audio curd is too black, which is also not a high preference for consumers.

In addition, the immersion is 30 minutes to 2 hours, characterized in that when made less than 30 minutes, the audio-enriched extract does not sufficiently penetrate, it is difficult to obtain all parts of the beautiful color desired by the present invention, more than 2 hours If done in such a way that it is economically unsuitable that does not achieve a more elevated effect.

Step 5) Manufacture of Audi Pack Tofu (S5)

Thus, all the parts of the Audi prepared in such a state of being immersed in the Audi pigment concentrate in a container, and then packing them to prepare an Audi pack tofu.

In this way, both the Audi part and the Audi pack tofu are characterized by excellent organoleptic properties and physical properties, which contain an audio pigment concentrate containing the maximum amount of cyanidin-3-glucoside (C3G) component, which is much higher than the existing Audi water extract. Through this, there is a useful value as a functional material that can develop and sell high value-added products and products with enhanced functionality beyond simple food materials.

Hereinafter, the present invention will be described in more detail with reference to examples, but these examples are for illustrative purposes only and are not intended to limit the protection scope of the present invention.

< Example  1. Both Audi One  Manufacture

3 kg of water was added to 1 kg of soybean, heated at 100 ° C. for 30 minutes, pulverized with a blender, and squeezed juice to separate bean curd and soy milk.

To the separated soymilk solution, a coagulant was added in an amount of 0.2 parts by weight based on 100 weights of soymilk solution, mixed, put into a mold, and compressed to prepare all parts.

To 1 kg of thawed audio, 2,000 ml of 70% (v / v) ethanol and 1 g of citric acid (0.05 parts by weight based on 100% ethanol) were added and crushed by hand three times, and then filtered to remove solids. The filtered extract was obtained and concentrated to prepare an OD pigment concentrate containing a cyanidin-3-glucoside (C3G) component.

The mixed solution was prepared by dissolving 20 g of the concentrated pigmented orange pigment with 400 ml of cold water at 4 ° C.

400 g of the prepared all parts were added to the mixed solution thus prepared, soaked for 30 minutes, and taken out to prepare all parts of the audio system.

<Example 2. Audi pack tofu production>

All parts of the Audi prepared in Example 1 were packed together in a conventional tofu pack while being packed in a mixed solution of the above-mentioned audio pigment concentrate and water to prepare an audio pack tofu.

< Comparative example  1. All One  Manufacture

Prepared in the same manner as in Example 1, but all parts 1 were prepared using 0.1 parts by weight of citric acid instead of 0.05 parts by weight of citric acid.

Comparative Example 2. Manufacturing Part 2

Prepared in the same manner as in Example 1, except that the citric acid was added all parts 2 were prepared.

< Comparative example  3. Part 3 Manufacturing>

Prepared in the same manner as in Example 1, but was added to the content of the audio pigment concentrate 100 parts by weight based on 100 parts by weight of the conventional all parts to prepare all parts 3.

< Comparative example  4. Part 4 Manufacturing>

Prepared in the same manner as in Example 1, but was added to the 20 parts by weight based on 100 parts by weight of the normal pigment part of the concentration of the audio pigment concentrate was prepared all parts 4.

< Comparative example  5. All Part 5 Manufacturing>

Prepared in the same manner as in Example 1, but instead of the audio dye concentrate was mixed with water and Audi, extracted by ultrasonication and then lyophilized to obtain all parts 5 were prepared using the dye powder.

< Comparative example  6. Part 6 Manufacturing>

Prepared in the same manner as in Example 1, except that the audio dye concentrate was prepared together in the normal production of all parts, all parts 6 were prepared.

Comparative Example 7. Manufacturing of Part 7

Prepared in the same manner as in Example 1, but instead of the audio dye concentrate, 20g (5 parts by weight of all parts based on 400g of lyophilized) powder was mixed to prepare all parts 7.

< Experimental Example  1.Check C3G of Audi Tofu>

1. Experimental method

(1) analysis pretreatment

After mixing 1 g of each part of Audi and 5 ml of 5% formic acid, sonication was performed at 25 ° C. for 1 hour, and then filtered to obtain 1.5 ml of the filtrate, followed by HPLC. The analysis was performed.

(2) HPLC analysis method

The cyanide-3-glucoside content of all parts of each treatment was analyzed by comparing cyanidin-3-glucoside, an anthocyanin standard, and high performance liquid chromatography chromatogram.

The concentration of cyanidin-3-glucoside for each sample was calculated as the area ratio based on the concentration of the cyanidin-3-glucoside standard, and the standard cyanidin-3-glucoside was purchased from Genay France. Was used.

All of the lipid-deleted Audi parts were injected into a Shimadzu LC system under high performance liquid chromatography analysis and analyzed at 538 nm.

As a column, Nova-Pack C18 (300 * 3.9) was used, and the temperature of the column was maintained at 35 ° C.

As the mobile phase, H ₂ 0: CH ₃ CN: HoAC: H ₂ PO ₄ = 81.7: 8.4: 8.4: 1.5 (V / V) was used, and the flow rate was 1.0 / min.

2. Experimental Results

The experimental results are shown in Table 1 below.

C3G component (ppm) Example 1 183.89 Comparative Example 1 (0.1 part by weight of citric acid applied) 246.75 Comparative Example 2 (excluding citric acid) 34.03 Comparative Example 3 (applied with 1 part by weight of audio pigment concentrate) 55.55 Comparative Example 4 (applied with 20 parts by weight of audio dye concentrate) 370.14 Comparative Example 5 (applied with Audi pigment prepared by water extraction + ultrasonic treatment) 10.26 Comparative Example 6 (mixed together with the audio pigment concentrate during the production of all parts) 85.36 Comparative Example 7 (use of audio lyophilized powder) 159.42

As shown in Table 1, it was confirmed that all parts of the Audi prepared in Example 1 of the present invention are relatively high in C3G components than other comparative examples except Examples 1 and 4. In particular, in the case of Comparative Example 2, which is not used at all, citric acid and Comparative Example 5 manufactured through the extraction process by ultrasonication, the C3G component is significantly lower, and in the case of Audi, the C3G component is maximized through the specific manufacturing process of the present invention. It can be seen that it can be extracted.

<Experimental Example 2. Color Inspection of Audi Tofu by Treatment>

1. Experimental method

Colors were examined for all parts of each auditory organ. The inspection method was expressed as a quantified value compared with the practical Korean Standard Color Sampler (Industry Promotion Agency / Korea Broadcasting Corporation).

2. Experimental Results

The experimental results are shown in Table 2 below.

color Example 1 2.5P1214 Comparative Example 1 (0.1 part by weight of citric acid applied) 10P1326 Comparative Example 2 (excluding citric acid) 5RP1404 Comparative Example 3 (applied with 1 part by weight of audio pigment concentrate) 2.5P1199 Comparative Example 4 (applied with 20 parts by weight of audio dye concentrate) 2.5RP1360 Comparative Example 5 (applied with Audi pigment prepared by water extraction + ultrasonic treatment) 10P1323 Comparative Example 6 (mixed together the audio pigment concentrate when preparing the primary tofu molding) 2.5P1211 Comparative Example 7 (use of audio lyophilized powder) 2.5P1206

As shown in Table 2, in Comparative Examples 1 and 7, black purple and black purple, respectively, were shown. In Comparative Examples 2, 3, 4, 5, and 6, respectively, dark brown, dark gray, turbid black purple, and dark black. As the color is too strong, the preference of consumers is lowered. On the other hand, in the case of Example 1, it has a bright black purple color, which represents a beautiful color that consumers may prefer, and thus, it is considered that the user's preference may be visually increased.

<Experimental Example 3. Confirmation of sensory test on both parts of Audi and Pack tofu>

1. Experimental method

The sensory evaluation of Audi tofu was conducted on 10 men and women in their 20s and 60s. The items were examined for color, aroma, taste and overall acceptability, and nine-point scoring was adopted.

2. Experimental Results

The experimental results are shown in Table 3 and Figures 3,4.

color incense flavor Overall preference Example 1 (all tofu) 9 8 9 8.7 Example 2 (pack tofu) 9 9 9 9.0 Comparative Example 1 (0.1 part by weight of citric acid applied) 8 7 One 5.3 Comparative Example 2 (excluding citric acid) 5 7 7 6.7 Comparative Example 3 (applied with 1 part by weight of audio pigment concentrate) 3 5 5 4.3 Comparative Example 4 (applied with 20 parts by weight of audio dye concentrate) 5 5 5 5.0 Comparative Example 5 (applied with Audi pigment prepared by water extraction + ultrasonic treatment) 3 5 5 4.3 Comparative Example 6 (mixing of the audio dye concentrate together in the production of all normal parts) 5 5 7 5.7 Comparative Example 7 (use of audio lyophilized powder) 7 5 7 6.3

As shown in Table 3 and Figures 3 and 4, in the case of Comparative Examples 1 and 4, the C3G content was relatively high, but the content of citric acid was added too much, so that the sour taste appeared strong and the overall preference was low. Confirmed. In addition, in the case of Comparative Examples 3, 5, 6, the pigment was weak, it was confirmed that the color after the preparation of the tofu appears to be gray overall, but rather lower the consumer's preference. On the other hand, in the case of Example 1, the content of C3G was also high, and in particular, the final product made of all parts of Audi showed a beautiful color, which visually increased the preference to consumers, and also showed a great difference from general tofu in aroma and taste. In general, it was confirmed that the preference of consumers was high. Particularly, in Example 2, the sensory results were similar to those of all the parts of Example 1, and at the same time, they were stored with almost no change in color even after long-term storage for 9 days or longer, and thus, consumers' preference was shown to be high overall. .

As described above, the manufacturing method of the present invention is an essential process for extracting the maximum C3G content from the audio system. In the case of the tofu prepared by the manufacturing method, the organo tofu contains a large amount of antioxidant components and exhibits excellent organoleptic properties. It is possible to manufacture pack tofu while maintaining the texture of all parts while maintaining beautiful texture. As a result, it is possible to develop and sell high value-added products and functional products out of simple foods as well as consumers' preference. It can be seen that it can contribute to the increase of income of the company and the health of the public.

The present invention has been described with reference to the preferred embodiments, and those skilled in the art to which the present invention pertains to the detailed description of the present invention and other forms of embodiments within the essential technical scope of the present invention. Could be. Here, the essential technical scope of the present invention is shown in the claims, and all differences within the equivalent range will be construed as being included in the present invention.

Claims (8)

A first step of heating soybean to obtain soymilk;
A second step of preparing a whole tofu by putting a coagulant into the soymilk, and then compressing and molding the soymilk;
Adding ethanol and acid to the Audi, extracting and filtering the filtrate, and then concentrating the filtered solution to prepare an orange pigment concentrate;
A fourth step of preparing all parts of the Audi by immersing all parts prepared in the second step into a mixed solution of the mixture of the audio dye concentrate and water prepared in the third step;
Audi manufacturing method.
The method of claim 1,
The acid of the third step is characterized in that the citric acid 0.03 ~ 0.08 parts by weight based on 100 weight of the ethanol,
Audi manufacturing method.
The method of claim 1,
The ethanol of the third step is characterized in that the 100 to 300 parts by weight based on 100 parts by weight of the audio,
Audi manufacturing method.
The method of claim 1,
When manufacturing the tofu of the fourth step,
The water is characterized in that to prepare 50 to 150 parts by weight based on all 100 parts by weight,
Audi manufacturing method.
The method of claim 1,
When manufacturing all parts of the audio of the fourth step,
The audio pigment concentrate is characterized in that it is prepared in 2 to 10 parts by weight based on 100 parts by weight of all parts,
Audi manufacturing method.
The method of claim 1,
After the production of all four parts of the fourth stage, the immersed state is added to the container and then added to the fifth step of manufacturing the pack tofu,
Manufacturing method of Audi pack tofu.
Prepared by the manufacturing method of any one of claims 1 to 5,
Audi everyone.
Prepared by the manufacturing method of claim 6,
Audi Pack Tofu.

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