JPH05168344A - Method for utilizing raw bean-curd refuse - Google Patents

Abstract

PURPOSE:To utilize raw bean-curd refuse as a culture medium for mushrooms excellent in yield increasing effects by mixing the raw bean-curd refuse with sawdust powder and hermetically sealing the resultant mixture in a hermetically sealable bag and carrying out the organic acid fermentation. CONSTITUTION:Raw bean-curd refuse is mixed with sawdust powder of wood in amounts at, e.g. 1:1 ratio and the resultant mixture is hermetically sealed in a hermetically sealable bag and subjected to the organic acid fermentation. Thereby, the raw bean-curd refuse is utilized as a culture medium for mushrooms.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a method of using raw okara.

[0002]

2. Description of the Related Art In artificial cultivation of enoki mushrooms, shimeji mushrooms, etc., wood sawdust is used as a medium material. It is common to use nutrients added to a base material such as sawdust as the medium material used in the cultivation of mushrooms, and rice bran and the like are used in the cultivation of mushrooms such as enoki mushrooms. Since the medium material has a great influence on the growth of mushrooms, various medium materials have been devised and used conventionally. For example, various materials such as rice husks, corn cobs, bark, paper, and corrosive soil are used as the base material of the medium material, as well as various materials such as rice husk, bran, corn as the nutritional component. Bran, okara, and flour are used. In addition to these, various additives are also used.

As described above, various medium materials have been used in the past. The purpose of this is to use the medium material suitable for each mushroom type, and mushrooms have been produced on an extremely large scale. As a result, a large amount of medium material is consumed, and there is a tendency that the raw wood sawdust that is usually used is insufficient. There is a method to use the waste sapwood used for cultivating raw wood such as shiitake mushrooms as a material for sawdust instead of the raw wood. This is to make up for the lack of sawdust in the raw wood and effectively use the waste sapwood. The purpose is to In addition to this, it is also considered that the used medium material after mushroom cultivation is supplemented with the medium material to reuse it as a medium material. Since various materials can be used for the mushroom culture medium material as described above, it is a target to use a by-product when producing a food or the like. Squeeze meal produced as a by-product in the brewing field,
An example is tofu meal (okara), which is a by-product of the production process of tofu. Since these by-products are produced in a very large amount, when these are used as mushroom culture medium materials, large consumption can be expected and effective utilization can be achieved.

[0004]

As described above, it has been used for a long time to utilize by-products such as okara for mushroom medium materials. Okara contains a large amount of nutrients such as proteins, so that it can be effectively used as a nutrient component of mushroom medium material. By the way, looking at the use of okara, the water content of raw okara produced as a by-product of tofu production is 80%.
Since it is extremely high (about%), it is not suitable for use as it is for mushroom culture medium materials that require moisture adjustment. In addition, raw okara is rich in nutrients, and thus has a problem that it tends to rot. Therefore, it is usual to dry the raw okara and use it for the mushroom medium material. However, there is a problem that raw okara is difficult to dry and the cost for drying is high.

A method has also been proposed in which raw okara is mixed with a medium material such as sawdust without being dried (JP-A-1-91716), but raw okara easily decomposes. After mixing with the medium material, the cultivation process such as bottling must be proceeded in no time. As mentioned above, since a large amount of okara is produced as a by-product, a method in which the raw okara after the by-product must be used without a delay is not effective as a method of consuming a large amount as a medium material. Therefore, the present invention has been made to solve the above problems, and an object of the present invention is to suitably use raw okara by-produced in the production of bean products such as tofu as raw. It is intended to provide a method.

[0006]

The present invention has the following constitution in order to achieve the above object. That is, the raw material for mushrooms is characterized by mixing raw okara and sawdust of wood, sealing in a sealed bag and fermenting with organic acid to prepare a mushroom medium material.

[0007]

SUMMARY OF THE INVENTION The method for utilizing raw okara according to the present invention is to obtain a mushroom medium material that can be suitably used for mushroom cultivation by using raw okara as it is. Is obtained by mixing the powders and sealing and storing in a sealed bag. The mixture sealed in the sealed bag is fermented with an organic acid in the bag, and has a pH value suitable for mushroom cultivation. As a result, the mushroom medium material can be suitably used for mushroom cultivation to increase the yield. The amount of raw okara and sawdust to be used can be appropriately set, but it can be obtained by mixing raw okara and sawdust in an amount of about 1: 1. It can be provided as an effective utilization method of raw okara because the mixture is hermetically stored and fermented with organic acid, raw okara can be used as it is, and okara can be used considerably as a medium material amount. ..

[0008]

EXAMPLES Examples of the method of using raw okara according to the present invention will be specifically described below. Example 1. 10 kg of raw okara (water content 83%) 10 kg of pine sawdust powder (water content 15%) were mixed, stored in a vinyl bag and completely sealed. It was stored outdoors at room temperature for 15 days in a sealed state. When the mixture was opened and the state of the mixture was examined, raw okara was fermented with organic acid and had a good aroma. The pH at this time was 5.3. This organic acid-fermented mixture was filled in a cultivation bottle as a 100% mushroom medium material and used for cultivating mushrooms and shimeji mushrooms. As a result, an average yield of 5% was achieved.

Example 2. 10 kg of raw okara (water content 83%) and 10 kg of cedar sawdust powder (water content 15%) were mixed, placed in a vinyl bag and completely sealed. It was stored outdoors at room temperature for 15 days in a sealed state. When the mixture was opened and the state of the mixture was examined, raw okara was fermented with organic acid and had a good aroma. This organic acid-fermented mixture was mixed with 10
When the cultivation bottle was filled with 0% mushroom medium material and used for the cultivation of enoki mushrooms and shimeji mushrooms, it was possible to increase the average yield of mushrooms by 3% and shimeji mushrooms by 15%.

Embodiment 3. 10 kg of raw okara (water content 83%) 10 kg of sawdust powder made from sardines after shiitake cultivation (water content 1
3%) was mixed, stored in a plastic bag and completely sealed. It was stored outdoors at room temperature for 15 days in a sealed state. In the storage state, the temperature inside the bag sometimes reached about 42 ° C. When the mixture was opened and the state of the mixture was examined, it was found that the organic acid fermentation had a better alcohol odor than the one using the above pine or cedar sawdust powder. The pH at this time was 5.0.
When cows were fed with the mixture of organic acid fermentation,
I ate very well. In addition, when this was used as a mushroom medium material for various mushroom cultivations such as mushrooms, shimeji mushrooms, etc.,
Compared with the above organic acid fermentation medium material using pine and cedar sawdust, the surrounding of the bacteria was faster, and the cultivation period could be shortened by 2 to 3 days.

Embodiment 4. Raw okara 100 kg (water content 83%) 100 kg of sawdust powder (water content 13%) 20 kg of rice bran using sardines after shiitake cultivation was mixed with a ribbon mixer for 10 minutes, stored in a polyethylene bag and sealed. It was stored outdoors at room temperature for 10 days in a sealed state. When the mixture was opened and the state of the mixture was examined, it was found that the fermentation was an organic acid fermentation with a good alcohol odor similar to that using the above waste sardine wood. The pH at this time was 5.0. When this organic acid-fermented mixture was used as a mushroom medium material, the bacterial growth was faster than the conventional medium for about 10 days, and the results of testing shimeji mushrooms showed an average increase of about 20% compared to the conventional medium. did it.

Comparative Example As a comparative example of the above example, a test was conducted using a cypress as a sawdust material. 10 kg of raw okara (water content 83%) and 10 kg of cypress sawdust powder (water content 15%) were mixed, placed in a plastic bag, sealed, and stored outdoors at room temperature for 15 days. When the mixture was opened and examined for the state of the mixture, it had a bad odor and no organic acid fermentation was observed.

From the results of the above-mentioned examples, it was confirmed that organic acid fermentation occurs when raw okara and sawdust are mixed and stored in a sealed manner, and the resulting mixture can be suitably used as a mushroom medium material. When raw okara and sawdust are mixed and fermented in the air without sealing, they decompose to compost and the above organic acid fermentation does not occur. In the case of compost, the pH is around 7.8, and the mixture obtained by the above method is
From the value, it can be seen that it is caused by acid fermentation different from this. In the mushroom medium material, when using okara etc., it is usual to adjust the medium to a pH value suitable for mushroom cultivation, but in the case of this example, organic acid fermentation is carried out by mixing raw okara and sawdust. By doing so, there is an advantage that the pH value (around pH 5) is suitable for naturally growing mushrooms. This is extremely effective in facilitating the work of producing the mushroom medium material. In addition, since the mushroom medium material of the present example contains okara as an ingredient, it already contains the necessary nutritional components, and there is an advantage that it is not necessary to add other nutritional components. Of course, you may add and use other nutritional ingredients like Example 4.

As can be seen from the comparative examples, suitable organic acid fermentation may not occur depending on the wood sawdust powder mixed with raw okara. An example is when cypress sawdust powder is used. Among the examples, the one in which shiitake waste shavings were milled into sawdust was the best. It is considered that this is due to the fact that the waste buds of shiitake mushrooms have a lower water content than other wastes, and that the buds of the shiitake mushrooms become porous inside and are suitable for organic acid fermentation. In addition, it is conventionally known that the sawdust is preferably used as a culture medium material for mushroom cultivation using waste mash of shiitake mushrooms, and it is shown in Examples by using an organic acid fermentation medium as a mushroom medium material. As described above, it can be very suitably used for mushroom cultivation.

The mushroom medium material according to this example has an advantage that it can be produced by simply mixing raw okara with the sawdust. In particular, the medium material is extremely easy to prepare because it can be used without drying the raw okara. Raw okara is fermented with organic acid to produce a suitable mushroom medium material simply by mixing and storing it with sawdust, so when manufacturing the medium material, raw okara and sawdust are packed in a sealed bag and sealed. It can be used as a culture medium material by storing it for a certain period as it is. Therefore, after the raw okara and the sawdust are mixed, they can be handled very easily by transporting them to the actual mushroom producer in a sealed bag and storing them. In addition, the living mushroom can be used by mixing it with sawdust in a considerable amount ratio as shown in each of the above-mentioned examples, so that even a large amount of raw soup can be efficiently consumed, and the production process of foods. It makes it possible to make effective use of the okara produced as a by-product. As a result, it is possible to provide a powerful method of utilizing the okara produced as a by-product. Although the present invention has been variously described with reference to the preferred embodiments, the present invention is not limited to the above embodiments, and many modifications can be made without departing from the spirit of the invention. That is.

[0016]

EFFECTS OF THE INVENTION According to the method for utilizing raw okara according to the present invention, as described above, the okara produced as a by-product in the production of bean foods can be used extremely efficiently, and There is an effect that a suitable medium material can be obtained by a very simple operation of mixing okara and sawdust and sealing the mixture in a sealing bag. In addition, by sealing and storing in a sealed bag, it is possible to obtain a medium material suitable for mushroom cultivation such as pH value, nutrients, etc., and it is possible to achieve a remarkable effect such as increasing the yield of mushrooms.

Claims (1)

[Claims] 1. A method of using raw okara, characterized by mixing raw okara and wood sawdust powder, sealing in a sealed bag, and fermenting with organic acid to obtain a mushroom medium material.