JPS6254462B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for producing red and white tofu. More specifically, red and white tofu is produced by bonding red tofu produced by adding Monascus pigment to soymilk obtained by a conventional method and tofu produced by a conventional method using a synthetic resin film or paper. Concerning the manufacturing method.

[Problems to be solved by conventional technology and invention]

In Japan, red and white foods have been served at celebratory events such as the New Year, festivals, weddings, and coming-of-age ceremonies since ancient times. For example, there are many examples of this in kamaboko, manjiyu, and rakugan. However, such foods are not found in tofu, which is commonly used in Japan.

[Means for solving problems]

Therefore, the present inventors first started investigating a method for manufacturing red and white tofu, and as a result of examining the adaptability of various red pigments to tofu, they found that the pigments were eluted with hot water during tofu production. It was discovered that Monascus pigment is the only pigment that does not have the drawback of discoloring equipment, has excellent binding properties with tofu protein, and is colored red, and therefore Monascus pigment is suitable for the purpose of the present invention. Ta.

Monascus pigment has been used in China and Taiwan since ancient times as red wine,
It has been used to produce benifu (fermented moromi made by adding water, yeast, red rice wine, and rice wine to steamed rice) and benilactose (fermented by adding hard tofu, salt water, and rice wine), etc. It is produced from the fungus Monascus.

More than 10 species of this fungus have been reported to date, of which Monascus anchor and Monascus purpureus are the main ones used for industrial cultivation.

The red and white tofu of the present invention is produced as follows. The soymilk to which the Monascus pigment is added to produce the red tofu first may be any type of soymilk for silken, soft, or firm tofu as long as it is obtained by a conventional method, but it is preferable that the soymilk for silken tofu is suitable for the purpose of the present invention. .

Monascus pigment is added to boiled soy milk, a coagulant is added and stirred, and the mixture is transferred into a mold box and coagulated.
It is preferable to use a flat box with a relatively shallow bottom.

Monascus pigment is not distributed as a pure product, and it is diluted with a solvent such as ethanol to give a color value of 60 to 80 (E ¹ % _1cn).
(500 mμ) x 10), but the amount of such pigment added to soybean milk is in the range of 0.05 to 3.0%, and the amount added is adjusted as appropriate while checking the degree of coloring. If it is less than 0.05%, the coloring will be weak, and if it is more than 3%, it will be colored red and is not economical.

The thus-produced red tofu and regular tofu are bonded together, but it is difficult to pour the next soymilk containing a coagulant onto the previously coagulated tofu to bond them together. That is, if the next soymilk with a coagulant added is poured into the hot tofu that has been coagulated first, the boundary surfaces will mix and the red and white will become unclear at the boundary.

Also, when the tofu that has been coagulated first is allowed to cool,
Because the yuba coat is spread on the surface of the tofu, even if soy milk containing a coagulant is poured next, the two will not stick together.

The red and white tofu produced by the present invention requires that the red tofu and the regular tofu adhere to each other. However, there are various problems mentioned above. The inventors of the present invention have made extensive studies to solve this problem, and have found that it is necessary to shield the surface of the tofu from air before it is completely coagulated. A specific method is to use a synthetic resin film or water-resistant paper.

That is, Monascus pigment is added to an appropriate amount of soy milk obtained by a conventional method, mixed well, and a coagulant is added.
Quickly pour soy milk at a temperature of 75°C or higher into a mold box, then cover the mold with synthetic resin film or the like so that it sticks to the surface. Before the soy milk poured earlier has completely coagulated, soy milk with a temperature of 75℃ or higher with a coagulant added is poured onto a synthetic resin film, etc., and after the red tofu underneath has almost coagulated, the film etc. in between is pulled out. When cooled, it is possible to obtain tofu in which a block of tofu is adhered to a red and white color.

In this procedure, you can first make regular tofu, then pour soymilk that has been colored red and added a coagulant on top to obtain the same red and white tofu.

Although the purpose of the present invention is to produce red and white tofu, it is possible to freely produce tofu of three to four colors such as red and white red, white red and white, and red and white red and white by repeating the above-mentioned operations.

Furthermore, green, yellow, purple,
Adhesive tofu can be obtained by appropriately combining tofu colored red, red, etc.

〔Example〕

Next, the present invention will be explained by examples.

Example 1 Soy milk for silking obtained by a conventional method by adding 4 times the amount of water to the raw soybean was divided into 2 parts of 7 parts, and one part was mixed with Rike Color MO-2 (manufactured by Riken Vitamin, Monascus pigment, E ¹ %). Add 28g of _1cn (500mμ) 6-7) and color it red. Next, a coagulant consisting of 40% glucono delta lactone and 60% calcium sulfate was added.
Add 0.4% to soy milk at 77℃ and pour into a 15 volume flat box for straining. A vinyl chloride film is stretched over this, and then the next soy milk containing a coagulant is poured onto the vinyl chloride film by the same operation, and when the soy milk below begins to coagulate, the vinyl chloride film is gently pulled out. In this way, red and white tofu is obtained.

Example 2 Divide the soymilk obtained in Example 1 into three portions of 5 each, and add Monascus pigment (Rike Color MO-3) to one of the portions.
Add 25g to make it red. A coagulant consisting of 30% glucono delta lactone and 70% calcium sulfate is added to soy milk at 0.4% each. First, the coagulant is added to regular soy milk (76°C), poured into a 15-volume strainer box, and poured into a polyethylene film. was applied to the surface, then red colored soy milk was poured in the same way and a polyethylene film was applied to the surface. Furthermore, regular soy milk is poured into the mold box in the same manner as above.
When the soy milk under the film begins to solidify, carefully remove the film. In this way, white and white tofu could be obtained.

Claims (1)

[Claims] 1. Production of red and white tofu, which is characterized by adhering red tofu produced by adding Monascus pigment to soymilk obtained by a conventional method and tofu produced by a conventional method using a synthetic resin film or paper. Law.