KR20170060378A

KR20170060378A - Method for Rapid Bottle Cultivation Grifola Frondosa

Info

Publication number: KR20170060378A
Application number: KR1020150164777A
Authority: KR
Inventors: 정영철; 변재국; 유경태; 유경은
Original assignee: 정영철; 변재국; 유경태
Priority date: 2015-11-24
Filing date: 2015-11-24
Publication date: 2017-06-01
Also published as: KR101770336B1

Abstract

The present invention relates to a method for cultivating a leaf mushroom, and more particularly, it relates to a method for cultivating a leaf mushroom, and more particularly, to a method for cultivating leaf mushroom by shortening the production period of leaf mushroom for 10 days or more by establishing an optimized bottle cultivation condition based on the growth characteristics of the leaf mushroom Which is related to the bottle cultivation technique.
The method of cultivating the mushroom according to the present invention comprises: a first step of preparing a medium by mixing 95 to 99% by weight of oak sawdust with 1 to 5% by weight of wheat bran; A second step of filling the medium prepared in the first step with 0.75 to 0.8 g / 1 cc in a bottle of 850 ± 50 cc having an inlet size of 6.2 ± 0.5 cm; A third step of primary sterilization of the cultivation bottle filled with the medium at 70 ± 10 minutes at 105 ± 5 ° C. and then sterilization at 120 ± 10 ° C. for 110 ± 10 minutes; A fourth step of cooling so that the deep portion temperature of the cultivating bottle is lower than 10 캜; A fifth step of inoculating 1 ~ 5g of the mushroom seedlings into a cultivating bottle; The cells were maintained at 25 to 30 ° C in the initial 10 ± 2 days, at 23 to 25 ° C in the middle stage 10 ± 2 days, at 20 to 22 ° C in the latter 10 ± 2 days, A sixth step of culturing while light is applied; The temperature was maintained at 19 ± 2 ℃ for the first 2 ± 1 days and 17 ± 2 ℃ for the next 13 ± 3 days after removing the bottle cap. The humidity was 90 ± 5% for the initial 4 ± 1 days, 5 ± 5% And the seventh step of growing the strain at 80 ± 5% for 2 days and 60 ± 5% for 6 ± 2 days at the latter stage.

Description

{Method for Rapid Bottle Cultivation Grifola Frondosa}

The present invention relates to a method for cultivating a leaf mushroom, and more particularly, it relates to a method for cultivating a leaf mushroom, and more particularly, to a method for cultivating leaf mushroom by shortening the production period of leaf mushroom for 10 days or more by establishing an optimized bottle cultivation condition based on the growth characteristics of the leaf mushroom Which is related to the bottle cultivation technique.

Grifola frondosa is a taxonomic species belonging to Aphyllphorales , Polyporaceae and Grifola , and is distributed around the branches and roots of large broad-leaved trees during summer and autumn. It is the white part of the timber which is caused by the bundle. Fruiting bodies are composed of a large number of gobs divided into several small basins, which are formed from one large basin, and the surface is dark brown to gray and has a radial fiber pattern.

Leaf mushroom is a fragrant edible mushroom, and in Japan it is sometimes called mai-tama, or mai-tama, which dances its name when it finds a leaf mushroom. It is known that 23 kinds of free amino acids, Vitamin B1, B2, C, and D are known as constituents, and sterols such as ergosterol and β-glucan which are excellent in promoting immunity activity. In general, β-glucan of other mushrooms has a structure of β-1, 4 bonds at the β-1, 3 bond points, whereas the chemical bond of D-glucans is β-1, 4 bond.

D-fraction purified from the polysaccharide of the mushroom has been commercialized in the United States and Japan as beta-1, 3-glucan with beta 1, 6, and antihypertensive, anti- And anti-hyperlipidemia have been reported. In particular, β-glucan extracted from mycelium of mushroom was administered to mice transplanted with cancer cells such as fibrosarcoma, L1210 leukemia, and P388 leukemia. As a result, not only cancer activity but also natural killer cells and macrophages ), And inhibited cancer. Based on these studies, the polysaccharide of leaf mushroom suppressed cancer cells and obtained FDA approval in 1998 as an anti-cancer adjuvant. In addition, the functional components of the mushroom were inhibited by HIV (Nanba et al. 2000), blood pressure lowering (Choi et al. 2001), cholesterol suppression, antioxidant activity inhibiting cyclooxygenase enzyme, hypoglycemia, inhibition of vascular endothelial cell growth And inhibition of neovascularization through a number of studies have been reported.

As mentioned above, commercial use of leaf mushroom is increasing and research results of pharmacological activity are increasing, and the number of leaf mushroom growers is also increasing. The method of cultivating the leaf mushroom is general, and the related patent document is the patent No. 10-0879722. Patent No. 10-0879722 relates to a technique for cultivating gold nano-containing leaf mushroom by administering gold nanoparticles after admission to a medium. In general, the method of cultivating a leaf mushroom, including the patent No. 10-0879722, usually takes about 40 days and 20 days.

The present invention has been developed in order to shorten the cultivation period of leaf mushroom, and it is intended to provide a leaf mushroom cultivation method capable of producing the leaf mushroom as a property while shortening the leaf mushroom production period by 10 days or more than the conventional bottle cultivation method.

According to an aspect of the present invention, there is provided a method of manufacturing a microorganism, comprising the steps of: preparing a culture medium by mixing 95 to 99% by weight of oak sawdust with 1 to 5% by weight of wheat bran; A second step of filling the medium prepared in the first step with 0.75 to 0.8 g / 1 cc in a bottle of 850 ± 50 cc having an inlet size of 6.2 ± 0.5 cm; A third step of primary sterilization of the cultivation bottle filled with the medium at 70 ± 10 minutes at 105 ± 5 ° C. and then sterilization at 120 ± 10 ° C. for 110 ± 10 minutes; A fourth step of cooling so that the deep portion temperature of the cultivating bottle is lower than 10 캜; A fifth step of inoculating 1 ~ 5g of the mushroom seedlings into a cultivating bottle; The cells were maintained at 25 to 30 ° C in the initial 10 ± 2 days, at 23 to 25 ° C in the middle stage 10 ± 2 days, at 20 to 22 ° C in the latter 10 ± 2 days, A sixth step of culturing while light is applied; The temperature was maintained at 19 ± 2 ℃ for the first 2 ± 1 days and 17 ± 2 ℃ for the next 13 ± 3 days after removing the bottle cap. The humidity was 90 ± 5% for the initial 4 ± 1 days, 5 ± 5% And a seventh step of growing 80 ± 5% at 2 days and 60 ± 5% at 6 ± 2 days in the second day.

According to the present invention, the following effects can be expected.

First, the cultivation cost can be reduced because the cultivation period of the leaf mushroom can be shortened.

Second, it can establish stable bottle cultivation conditions based on the growth characteristics of leaf mushroom, so it can produce high quality leaf mushroom stably.

FIG. 1 is a photograph of a step of preparing a culture medium for cultivating mushrooms according to the present invention.
FIG. 2 is a photograph of the step of bottling step in the method of cultivating the mushroom according to the present invention.
FIGS. 3A and 3B are photographs of a bottle and a bottle cap preferably used in the method of cultivating the mushroom according to the present invention.
FIG. 4 is a photograph of the sterilization step in the method of cultivating the mushroom according to the present invention.
FIG. 5 is a photograph of the cooling step in the method of cultivating the mushroom according to the present invention.
FIG. 6 is a picture of an inoculation step in the method of cultivating the mushroom according to the present invention.
FIG. 7 is a photograph of a seed culture process for use in the inoculation step in the method of culturing the mushroom according to the present invention.
FIG. 8 is a photograph of the cultivation step in the method of cultivating the mushroom according to the present invention.
FIG. 9 is a photograph showing growth stages of the mushroom cultivation method according to the present invention.
10A and 10B are photographs of the inside and outside of the growth chamber where the mushroom is grown in the embodiment of the present invention.

The present invention relates to a method for cultivating an attribute mushroom of a leaf mushroom, and has a technical feature of establishing an optimized mushroom cultivation condition based on the growth characteristics of the mushroom. The cultivation method of leaf bubbot is composed of medium preparation, feeding, sterilization, cooling, inoculation, cultivation, and growth stages, and each step will be described with reference to the drawings.

1. Stage 1 - Medium Preparation

The first step is the step of producing the medium of the mushroom (Fig. 1). The medium is prepared by mixing 95 to 99% by weight of oak sawdust with 1 to 5% by weight of wheat bran and aging the oak sawdust so that the anaerobic fermentation does not occur by circulating the air by frequently inverting the oak sawdust while minimizing the nutrient loss of sawdust have.

The oak sawdust is preferably prepared in two particle sizes, with a particle size of 0.5-1 cm and a particle size of 20-30% by weight of 0.2-0.5 cm. Leaf mushrooms have a relatively slow initial growth rate compared with other mushrooms, but after mybaceous shoots grow, mycelial growth progresses rapidly and the aging of mycelium rapidly occurs. In order to prevent this, the present invention optimizes the particle size and mixing ratio of the oak sawdust. When 70 to 80% by weight and 20 to 30% by weight of large particles (0.5 to 1 cm) and small particles (0.2 to 0.5 cm) of oak sawdust are mixed, respectively, when the medium is filled in a bottle, It becomes easier to activate, germinate and grow the mushroom fungus.

2. Step 2 - Feeding

The second step is to fill the bottle with the medium prepared in the first step (Fig. 2). It is preferable to fill the bottle with 0.75 ~ 0.8g / lcc. If more filling is done, the oxygen supply to the medium is insufficient and the growth of the mycelium of the leaf mushroom is inhibited. When the filling is less, the oxidation and contamination of nutrients The growth of leaf mushrooms is inhibited.

For the mushroom cultivation bottle, 850 ± 50CC standard bottles are used, and more preferably 850CC standard bottles are used (FIG. 3A). For 850CC, 650 ± 10g of medium is suitable. It is preferred that the size of the bottle inlet be reduced to 6.2 +/- 0.5 cm (preferably about 5.9 cm) by about 0.5 cm (about 0.6 cm) than the bottle used for growing the mushroom, This is to prevent the problem of delaying the propagation of seedlings due to the drying phenomenon of the surface of the medium caused by the excessive oxygen supply. In addition, as shown in FIG. 3B, it is preferable to attach a sponge filter having a size of 3 1 cm to the center of the bottle cap. The sponge filter has moisture control function to prevent microbial contamination and prevent drying of the upper layer of the medium through proper supply of oxygen .

3. Stage 3 - Sterilization

The third step is to sterilize the cultivation bottle filled with the medium (Fig. 4). Sterilization is divided into two steps, first and second, sterilization at 105 ± 5 ° C for 70 ± 10 minutes and then sterilization at 120 ± 10 ° C for 110 ± 10 minutes. The oak sawdust is strong in material and must be sufficiently sterilized in two steps while giving a temperature difference, so that nutrients (glucose, cellobiose, etc.) necessary for the growth of leaf mushroom can be produced and sterilized at the same time. By the first heat treatment sterilization, the fiber of oak sawdust becomes swollen, and all the bacteria such as bacteria and fungi are killed by the second heat treatment sterilization and the nutrients of the leaf mushroom bacteria are provided by the decomposition into cellobiose and glucose in the fibrin .

4. Stage 4 - Cooling

The fourth step is a step of cooling the deepest portion of the vat so that the temperature of the deepest portion of the vat becomes 10 ° C or less (FIG. 5). The main raw material of the cultivation medium is oak sawdust. Therefore, it takes a long time to cool. It is sufficient to cool the deep portion temperature to below 10 ° C in a refrigerated room (5 to 8 ° C). Inoculation of leaf mushrooms in a medium with a temperature of 10 ° C or higher may result in slower bacterial growth and off-taste due to changes in nutrients in the medium.

5. Step 5 - Inoculation

Step 5 is a step of inoculating the mushroom seedlings into a cultivating bottle (Fig. 6). At this time, the seedling mushroom seedlings use strong seedlings that do not undergo subculture more than 3 times (FIG. 7), and the ability of seedling mushroom cultivation to subculture more than 3 times decreases significantly.

Inoculation of 1 ~ 5g of seed is applied to 850 ± 50CC standard bottle, which is considerably less than that of other mushroom cultivars which are inoculated with 30 ~ 50g of seed. Inoculation of leaf mushroom seedlings causes the aged mushroom strain to dominate in the upper part of the medium, which is a major obstacle to the germination and growth of new active mushrooms. Accordingly, in the present invention, it is possible to reduce the cultivation cost by reducing the amount of the seedling and shorten the inoculation time.

6. Step 6 - Culture

The sixth step is a culture step in which germinating seedlings inoculated into a cultivating bottle are germinated (FIG. 8). The initial 10 ± 2 days were maintained at 25 ~ 30 ℃, the middle stage 10 ± 2 days at 23 ~ 25 ℃ and the latter 10 ± 2 days at 20 ~ 22 ℃. After the initial 10 ± 2 days, the bottles were separated and light - All. To lower the temperature in the early, middle, and late stages in order to delay the aging of mushroom bacteria by inhibiting self-heating of the medium due to the growth of mushroom bacteria. In addition, the separation of the bottle at 10 ± 2 days of culture is intended to promote light germination of mushroom bacteria. Particularly, in the present invention, since a sponge filter having a small size of about 3 cm is attached to the center of the bottle cap, germination of the leaf mushroom bacteria is promoted by improving light transmission at the side of the sponge filter.

7. Step 7 - Growth

The seventh step is a step of growing the mushroom germinated in the sixth step (Fig. 9). The temperature was maintained at 19 ± 2 ℃ for the first 2 ± 1 days and 17 ± 2 ℃ for 13 ± 3 days after removing the cap. The humidity was 90 ± 5% for the initial 4 ± 1 days and 80 ± 5% And 60 ± 5% for the last 6 ± 1 days. Thus, adjusting the temperature and humidity according to the initial, middle, and late stages is suitable for adjusting the temperature and humidity of the culturing process of step 6, slowly lowering the temperature from 19 ± 2 ° C to 17 ± 2 ° C, % → 80 ± 5% → 60% ± 5 to reduce the humidity to create a proper growth environment, so that the harvest time can be shortened to 10 to 15 days.

The height of the growth chamber should be 1 ~ 2m higher than that for general mushroom cultivation. Raising the height of the growth chamber by 1 ~ 2m gives a good effect on the formation of fruiting body of leaf mushroom. Common fungi are formed with fruiting bodies on stem, whereas leaves are formed directly on stem without stem, so they are susceptible to winds due to wind and ventilation. Therefore, it is possible to produce high quality leaf mushroom by increasing the height of the growth chamber by 1 ~ 2m and minimizing the effect of wind. In addition, the air in the growth chamber is sufficiently supplied through the filter. For example, the supply of 5 minutes and the stop of 2 minutes are repeated.

Hereinafter, the present invention will be described in detail based on examples. However, the following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

[Example] Cultivation of leaf mushroom

The medium was prepared by mixing 97% by weight of oak sawdust and 3% by weight of wheat bran, and the oak sawdust was prepared by mixing 75% by weight of 0.5 × 1 cm and 25% by weight of 0.2 × 0.5 cm particle size (preparation of medium, 1). Subsequently, 650 g of the prepared medium was filled in an 850CC bottle (feeding, Fig. 2). The bottle had an inlet of 5.9 cm, and the bottle cap was prepared by attaching a sponge filter having a size of 3 cm to the center (Figs. 3A and 3B). Then, the culture bottle filled with the medium was first sterilized at 105 ° C for 70 minutes, sterilized at 121 ° C for 110 minutes (sterilized, Fig. 4), and then placed in a refrigerator (5-8 ° C) Lt; 0 > C (cooling, Fig. 5). Next, 3 g of the mushroom seedlings were inoculated into the cultivation bottle and cultured (FIGS. 6 and 8). The initial 10 days were maintained at 25 to 30 ° C., the middle stage 10 to 23 to 25 ° C., and the 10 days to 20 to 22 ° C. After the first 10 days, the bottles were separated and lighted. After the bottle cap was removed, the bottle was kept at 19 ℃ for the first 2 days and 17 ℃ for the next 13 days. The humidity was maintained at 90% for the first 4 days, 80% for the middle 5th day, and 60% for the 6th day 9). As a result, leaf mushroom as shown in Fig. 9 was grown.

On the other hand, the growth chambers are as shown in Figs. 10A and 10B. The mushroom growth counterparts were prepared in 6 stages x 2 columns (1 stage height: 60 cm, 1 row: 167 cm x 19 m) A total of 27,648 bottles (= 2,304 bottles x 6 counterparts x 2 rows) were installed by installing 144 baskets = 2,304 bottles and a bottle (16 bottles) with a distance of 1-2 cm. Air conditioning equipment (0.5 horsepower motor) was installed at the top of the growth chamber at 4.5m, and the air passing through the filter was supplied for 5 minutes and stopped for 2 minutes.

Claims

As a method of growing mushrooms,
A first step of preparing a medium by mixing 95 to 99% by weight of oak sawdust with 1 to 5% by weight of wheat bran;
A second step of filling the medium prepared in the first step with 0.75 to 0.8 g / 1 cc in a bottle of 850 ± 50 cc having an inlet size of 6.2 ± 0.5 cm;
A third step of primary sterilization of the cultivation bottle filled with the medium at 70 ± 10 minutes at 105 ± 5 ° C. and then sterilization at 120 ± 10 ° C. for 110 ± 10 minutes;
A fourth step of cooling so that the deep portion temperature of the cultivating bottle is lower than 10 캜;
A fifth step of inoculating 1 ~ 5g of the mushroom seedlings into a cultivating bottle;
The cells were maintained at 25 to 30 ° C in the initial 10 ± 2 days, at 23 to 25 ° C in the middle stage 10 ± 2 days, at 20 to 22 ° C in the latter 10 ± 2 days, A sixth step of culturing while light is applied;
The temperature was maintained at 19 ± 2 ℃ for the first 2 ± 1 days and 17 ± 2 ℃ for the next 13 ± 3 days after removing the bottle cap. The humidity was 90 ± 5% for the initial 4 ± 1 days, 5 ± 5% 80 < RTI ID = 0.0 > 5%, < / RTI >
Wherein the method comprises culturing the mushroom of the present invention.

The method of claim 1,
Wherein the first step is carried out using oak sawdust mixed with 70 to 80 wt% of a particle size of 0.5 to 1 cm and 20 to 30 wt% of a 0.2 to 0.5 cm particle size.

3. The method according to claim 1 or 2,
Wherein the second step is carried out while filling the culture medium and covering the bottle inlet with a bottle cap having a sponge filter having a size of 3 1 cm at the center thereof.