JPH02286012A - Culture bag for mushroom - Google Patents

Abstract

PURPOSE:To produce the subject bag made of polypropylene, having excellent air-permeability, usable without cutting and enabling easy and efficient artificial culture of mushroom by treating a sheet of Japanese paper with non-formalin wet-paper strengthening agent and attaching the treated paper to a window hole as a filter. CONSTITUTION:A circular window hole 2 is opened on a main body 1 of a polypropylene bag at a part slightly above the center part. Separately, a sheet of Japanese paper mainly made of fiber of paper mulberry is impregnated with a non-formalin wet-paper strengthening agent such as polyamide epoxy resin and dried. The treated sheet is pasted to the window hole 2 as a filter 3 to obtain the objective culture bag.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to a mushroom cultivation bag equipped with a filter that supplies air necessary for the generation of hyphae in the artificial cultivation of edible mushrooms.

[Conventional technology]

Bags used for artificially cultivating mushrooms such as maitake are equipped with filters to prevent the intrusion of germs and provide sufficient ventilation to allow mycelium to grow.

For this filter, ■Microporous synthetic film ■Water-resistant kraft paper (100% wood valve) is used. □When mushrooms such as maitake sprout, a portion of these filters must be manually cut open with a knife.

[Problem to be solved by the invention]

However, it goes without saying that this incision work, such as setting the timing and size of the incision, requires skill and effort, and if the timing and size of the incision are incorrect, the growth of maitake mushrooms will be disrupted due to rapid air circulation. Negative effects such as stoppage, malformation, and invasion of bacteria occur, which not only requires a great deal of effort and expense to understand the performance of the filter, which has a serious impact on the artificial cultivation of maitake mushrooms, but also leads to the occurrence of defective products such as malformations. There was a problem in that the cost was high.

Therefore, this invention has been made based on the above-mentioned circumstances.1. A mushroom cultivation bag that does not require skill and labor to cut open the filter, facilitates the artificial cultivation of mushrooms, reduces the incidence of malformations, increases the yield rate, and can contribute to reducing the cost of artificial cultivation of mushrooms. The purpose is to provide

[Means to solve the problem]

In order to achieve the above object, the mushroom cultivation bag of the present invention has the following features:
In a mushroom cultivation bag comprising a main body formed of polypropylene with a window hole and a filter attached to the window hole, the filter is made of Japanese paper and the Japanese paper is subjected to a non-formalin-based wet paper strength enhancement treatment. It is characterized by consisting of: In addition, the filter made of Japanese paper is subjected to a non-formalin-based lubricant paper strength enhancement treatment, and
Mushroom pest control treatment may also be applied.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1, the reference numeral 1 indicates a housing body molded from polypropylene, and on one side of this housing body 1, a circular window hole 2 is formed slightly above the central portion. A rectangular filter 3 is attached to cover the window hole 2. This filter 3 is made of washi paper mainly composed of kozo fibers, and non-formalin wet paper strength such as polyamide epoxy (or epichlorohydrin) resin of 0.2 to 2.0% based on the absolute dry weight of the paper. The paper is impregnated with an enhancer and dried to make it durable against steam sterilization and watering of the polypropylene bag culture medium, as well as to increase the strength of the paper so that it can tear naturally under the pressure of pushing up as mushrooms such as maitake grow. is adjusted.

The physical performance of Filter 3 is shown in Table 1.

In the performance tests shown in Table 1, (1) Japanese paper filters made of 80 to 100% Kozo fiber were used.

(2) Water content basis weight when measuring wet air permeability is 109.4 g/n
It was f.

(3) Wet tensile strength is based on JIS-P8135 wet tensile strength test method for paper and paperboard.

Next, artificial cultivation of maitake mushrooms using the cultivation bag of the present invention will be explained.

First, make a sawdust medium (60-70% moisture) by mixing beech and Quercus chip dust with rice bran and glucose, and then pack this into the proposed cultivation bag to a position just below the filter 3 (Figure 2). reference). Next, the packaged sawdust culture medium 4 is steam sterilized at 120° C. for 40 to 50 minutes, left to cool for 24 hours, and then inoculated with maitake mushroom seed and enters the culture (ripening) process.

The above process takes about 30 days, but since the sawdust culture medium 4 contains 60 to 70% water, the filter 3 skillfully takes advantage of the characteristics of Japanese paper, and the humidified fibers swell and become paper. The spaces between the layers are tightly spaced to prevent germs from entering from the outside. Furthermore, since the Japanese paper filter 3 has been subjected to wet paper strength enhancement treatment, it has the ability to withstand steam sterilization and water sprinkling.

Next, as mycelium spreads after ripening, the moisture content of the sawdust medium decreases to 40-50%, and the fibers that make up the Japanese paper filter dry and shrink, creating spaces in the paper layer of filter 3 and increasing the supply of air. Therefore, the primordium of maitake mushrooms forms and germinates directly under the filter 3 where air circulation is best. After the germination of the primordium, the filter 3 naturally gradually ruptures due to the upward pressure caused by the growth of the maitake mushrooms, and the maitake mushrooms grow outside the bag. If you use a real cultivation bag like this,
Since the filter is not intended to be cut with a knife during the germination period of Maitake mushrooms, bacteria may enter, malformations and growth may be stopped due to excessive supply of air due to the cut, and germination primordia may be formed in places other than directly under the filter, resulting in lack of nutrients. It becomes possible to eliminate all the inconveniences of producing poor quality maitake mushrooms, such as being harvested.

In this invention, the filter 3 attached to the window hole 2 is
The present invention is not limited to the above examples, and Japanese paper may be impregnated with a non-formalin-based wet paper strength enhancer, dried, and then further impregnated with a mushroom pest control agent, such as a thiabendazole wettable powder, and dried. It's okay. At this time, the wet paper strength enhancer is 0.2 to 2.0% based on the absolute dry weight of the Japanese paper.
%, and the pest control agent is similarly contained in an amount of 0.05 to 0.1% based on the absolute dry weight of the Japanese paper. By using this filter, you can prevent the invasion of bacteria from the outside.

Next, Table 2 shows the test results comparing the occurrence of Maitake mushrooms when Maitake mushrooms were cultivated using the cultivation bag of the present invention (this actual product) and when Maitake mushrooms were cultivated using the conventional product. Shown below.

In Table 2, Product A uses a filter made of washi paper treated to enhance wet paper strength, and Product B uses a filter made of Japanese paper treated to enhance wet paper strength and fungi control. It is something. Further, conventional product A uses a filter made of microporous synthetic film, and conventional product B uses a filter made of water-resistant kraft paper (100% wood valve).

This test was conducted from August to September, when harmful bacteria are most likely to occur.

In the above embodiments, the artificial cultivation of maitake mushrooms has been described, but it goes without saying that the cultivation bag of the present invention can also be applied to the cultivation of mushrooms such as cymen and nameko mushrooms. In addition, the mounting body 1
Of course, the portion of the filter provided in the filter is not limited to one location, and may be provided in multiple locations.

〔Effect of the invention〕

As explained above, this invention uses Japanese paper with water resistance and good air permeability as the filter material of the mushroom cultivation bag, thereby eliminating the need for the conventional filter cutting operation, and making it possible to create an artificial mushroom cultivation bag using the mushroom cultivation bag. This method has the effect of solving all technical and economic problems in cultivation at once, and making it possible to easily and efficiently cultivate mushrooms such as maitake.

[Brief explanation of drawings]

FIG. 1 is a front view showing an embodiment of the cultivation bag of the present invention, and FIG. 2 is a partially cutaway perspective view showing its use. 1... Mounting body, 2... Window hole, 3... Filter 4
...Sawdust culture medium.

Claims (1)

[Claims] 1. A window hole (2) is formed in the housing body (1) molded from polypropylene, and a filter (3) is formed in the window hole (2).
The mushroom cultivation bag 2 is characterized in that the filter (3) is made of Japanese paper and the Japanese paper is subjected to a non-formalin-based wet paper strength enhancement treatment. A window hole (2) is formed in the housing body (1), and a filter (3) is inserted into this window hole (2).
The mushroom cultivation bag is characterized in that the filter (3) is made of Japanese paper, and the Japanese paper is treated with a non-formalin-based wet paper strength enhancement treatment and a treatment to prevent fungi harmful to mushrooms. bag