JPH0427805B2 - - Google Patents

Description

[Detailed description of the invention]

[Object of the Invention] (Industrial Application Field) The present invention relates to a method for producing oyster mushrooms using bean sprout waste as an active ingredient. Here, the oyster mushrooms include Pleurotus oysterus, Pleurotus oyster mushroom, Black abalone mushroom, etc.
ostreatus, which refers to mushrooms of the genus Oysterus. (Prior technology) Until now, the general method for producing oyster mushrooms has been to mix sawdust with rice sugar, wheat bran, etc., add an appropriate amount of water, stir the mixture, fill it in a cultivation container, and sterilize it at high temperature. Inoculate the seed culture into the prepared medium,
It is cultivated and produced. . However, as is well known, sawdust has been in short supply recently, so the price has been rising steadily, and the price of rice sugar, which is used as a compound, has also increased significantly, which has forced a significant increase in costs. (Problems to be Solved by the Invention) The present inventor is a bean sprout manufacturer, and has been exploring ways to utilize the bean sprout waste (waste and bean shells produced by mechanical tentacles) produced in large quantities during the manufacturing process. As a result, he came to know about the cultivation status of the above-mentioned oyster mushrooms, and decided to research whether this bean sprout waste was suitable as a medium for mushroom cultivation. First, as a result of mixing chemicals with conventional culture media, we found that the culture medium requires vitamins (especially vitamin C), protein, sugar, etc. as active ingredients, and as a medium that satisfies these conditions,
It was confirmed that bean sprout waste was optimal. Based on this viewpoint, the present invention provides a method for cultivating and producing oyster mushrooms by forming a culture medium mainly from bean sprout waste. In addition, focusing on the nutrients contained in bean sprouts,
There has been an idea to add the extract to the culture medium (Japanese Patent Publication No. 11309/1983), but this is not directly related to the present invention since it does not constitute the culture medium itself. [Structure of the Invention] (Example) The present invention will be described below with reference to the present invention.
Taking as an example the cultivation of
First, bean sprout waste generated during the manufacturing process at a bean sprout manufacturing factory (approximately 3 tons of waste is produced from 10 tons of bean sprouts) is packed in predetermined amounts into cultivation containers using a filling machine, and then sterilized at high temperatures with steam for about an hour. In the case of conventional sawdust culture media, this high-temperature heating not only has a bactericidal effect but also serves to prepare the groundwork for nutrient absorption, but in the present invention, since the bean sprout waste itself is the active ingredient, it aims only at a bactericidal effect. It is something. Next, in the cultivation room, predetermined temperature, humidity, and ventilation conditions are set as usual to inoculate and culture "Oyster mushroom inoculum" native to the Rotsky Mountains of North America. That is, after inoculation with the inoculum, maintain the temperature at about 20℃ for about 20 days.
After culturing the bacteria for 30 days and seeing sufficient growth of the bacteria, the temperature was lowered to 15℃ and a so-called low-temperature shock was applied, after which the bacteria were scraped and waited for them to sprout.
Finally, the Oyster mushrooms grown in clusters are collected from the mouth of the container. However, a major feature of the method of the present invention is that it can be collected not only once but twice or three times from one cultivation container. Here is a comparison of the yield between the method of the present invention and the conventional method (cultivation method using sawdust medium).

[Table] In the method of the present invention, the amount of harvest decreases in the second and third rounds because the nutrients in the bean sprout waste are reduced, and by the third round, the shipping value as a product decreases. do not have. However, compared to the conventional method, which allows harvesting only once, it is easy to understand that this is a revolutionary manufacturing method. Furthermore, the above-mentioned information is almost common to the cultivation of mushrooms of the same genus Pleurotus, such as Oyster oyster mushroom (seed grown in mountainous areas in Japan) and Black abalone mushroom (soy grown in Taiwan), and the present inventor has already conducted cultivation experiments. successful. However, black abalone mushrooms seem to have problems in commercialization due to their jet black color, poor growth, and unique odor. [Effects of the Invention] As described above, the method of the present invention has the following advantages in the production of oyster mushrooms. (1) Cultivation Advantages First, bean sprout waste, which is used as a medium, can be stably supplied in large quantities, making cultivation possible all year round. Since the bean sprout waste itself contains sufficient active ingredients, no special formulation is required (though it is of course optional to add other active ingredients). There is therefore also no need for a step of stirring the material.
High temperature sterilization takes only a short time. Since mycelium rotation (reproduction) is extremely fast, there is less contamination by bacteria and the harvest period can be shortened. As shown in the table above, the harvest will be repeated several times, and the total harvest will be approximately twice as much as before. (2) Product advantages It has a rich taste and strong aroma, and can be used as a high-quality product.
In the experiments conducted by the present inventor, the shape of the oyster mushrooms collected from the second time onwards becomes somewhat similar to the shape of natural mushrooms (the shape of a large cap). (3) Economic advantages Bean sprout scraps have traditionally been used as waste or feed for cattle, etc., so they can be obtained at low cost. Furthermore, since no additives are required, material costs are extremely low, and the manufacturing process is also easy. The simplification results in significant cost savings overall.

Claims (1)

[Claims] 1. A method for producing oyster mushrooms, which comprises cultivating oyster mushrooms by inoculating and culturing seed fungi in a medium containing bean sprout scraps packed in a container and sterilized at high temperature.