JPH06153692A - Culture medium for cultivating mushroom - Google Patents

Abstract

PURPOSE:To obtain a culture medium for culturing a mushroom, capable of effectively utilizing vegetable wastes without disposal thereof, excellent in environmental pollution resistance and useful for Grifola frondosa S. F. Gray, Lentinus edodes Sing., etc., by blending a crushed vegetable in place of a part of sawdust powder in the culture medium used for the fungal bed cultivation of the mushroom. CONSTITUTION:The culture medium is obtained by blending a crushed vegetable in place of a part of sawdust powder composed of a broad-leaved tree, etc., in a culture medium used for the fungal bed cultivation of champignons, Flammulina velutipes Sing., etc.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for effectively reusing a large amount of vegetable scraps produced by molding a large amount of vegetables as a culture medium for mushroom cultivation.

[0002]

2. Description of the Related Art Conventionally, mushroom bed cultivation of mushrooms has mainly consisted of sawdust, bran, rice bran, corn bran,
A method of cultivating various edible mushrooms such as maitake mushrooms, shiitake mushrooms and nameko mushrooms is widely used as a nutrient source, and in some cases, a fermentation residue, which is industrially generated, is mixed, the water content is adjusted, sterilized, cooled, and inoculated with an inoculum. Was there.

On the other hand, large-scale molding of vegetables has come into wide use in recent years. That is, vegetables that have already been cut into a predetermined shape according to the purpose without being peeled or cut are widely sold, and the tendency to save the trouble of cooking at the end such as restaurants and homes has gradually become remarkable. Such molded vegetables are widely used for commercial purposes for restaurants, and their proportion in fresh vegetables is increasing in supermarkets, grocery stores and the like.

For example, in the case of oden radish, a fixed number of radish cut into the same size and the same thickness is put in a bag and sold. In this case, several tons or tens of dozens are put in one place. Tons of radish are processed, and the disposal rate reaches 65%. When processing radish at home, some fluctuations in thickness can be ignored, and parts that do not reach the prescribed thickness can be used for other purposes. Will rise extremely.

[0005]

For the above reasons, a large amount of the originally edible parts are discarded, and since these are industrial wastes, the dumper bears the burden of dumping costs. This burden put pressure on the molding business. Therefore, there has been a demand for a technique of effectively reusing edible materials that are originally sufficiently wasteful and effectively converting them into other useful foods.

[0006]

SUMMARY OF THE INVENTION The present invention is intended to solve the above-mentioned problems, and has a structure in which vegetable waste is crushed to a size substantially equal to that of sawdust and a mushroom is used instead of a part of the sawdust. It is characterized in that it is used as a medium for cultivating the fungus bed.

The vegetables used in the present invention are not particularly limited, and examples thereof include radish, carrot, onion and burdock. These may be added to the sawdust alone, but it is acceptable to add two or more kinds of vegetables to the sawdust.

The mushrooms cultivated according to the present invention can be used for mushrooms that can be cultivated in a fungus bed, such as maitake mushrooms, shiitake mushrooms, shimeji mushrooms, enoki mushrooms, nameko mushrooms, and hiratake mushrooms.

[0009] In preparing the medium, vegetables are crushed with a knife such as a mixer to a size in which vegetables are homogeneously mixed with sawdust, that is, a size almost equal to sawdust, and bran and corn are used. Add nutrients such as bran. The water content of the medium is preferably 60 to 68%, and the water content of the sawdust itself is about 35%. Therefore, the water content of the entire medium ranges from 60 to 68% depending on the type of vegetables. The crushed vegetables can be blended up to the amount.

In culturing, a nutrient source such as bran or bran is added to a mixture of sawdust and crushed vegetable waste, and water is added or not to form a medium having a preferable water content. To do. This medium is filled in a plastic bag, a culture bottle, or other culture container, and the container is sterilized. The sterilization treatment may be performed under normal pressure or under pressure. After cooling, the inoculum may be inoculated, and the culture may be performed under the culture conditions depending on the type of mushroom.

[0011]

The present invention focuses on the absurdity that vegetable waste generated from a vegetable molding factory is originally treated as industrial waste even though it is an edible part, and it is crushed and mixed with sawdust. The present invention was completed by paying attention to the fact that when used as a medium for cultivating mushroom beds of mushrooms, the same or better effects as those obtained by conventional methods can be obtained. According to the present invention, new industrial waste generated due to a new distribution process of mass-forming vegetables can be used as an effective industrial raw material.

[0012]

[Examples] Examples 1 to 6 and Comparative Example 1 Sawdust powder (water content: about 35% by weight) made of hardwood, crushed radish (water content: about 86% by weight), bran (water content: about 12 to 13)
%) And hominy feed (trade name: manufactured by Sunny Maze Co., Ltd., corn bran, water content about 15% by weight) are blended according to the formulation shown in Table 1, and water is added if necessary to adjust the water content to 63-
A 65% by weight medium was prepared and used as Examples 1 to 6.

A tube-shaped polypropylene film having a thickness of 60 μm and a width of 32 cm was folded by a gusset type bag making machine at both ends by 6 cm to give a length of 45 cm and a finished width of 20 cm.
Of the above bag is provided with a perforation having a diameter of about 3 cm on one side of the upper part of the bag, and the perforation is covered with a microporous film that blocks various bacteria and allows air to pass freely. The culture bag was prepared.

The culture bag was filled with about 3 liters of the culture medium and sterilized at 120 ° C. for 60 minutes. After cooling, the medium was inoculated with Maitake mushroom inoculum and continued to be cultivated in a room at 24 ° C and 65% relative humidity for 40 to 45 days. When mycelium spread to the entire medium, it was transferred to a room at 18 ° C and 95% relative humidity. Spawned fruiting bodies. After inoculation with the inoculum, the period until cultivation of fruiting bodies was taken as the number of cultivation days and is shown together with the weight of fruiting bodies in Table 1.

Separately, in Comparative Example 1, the composition of the medium when cultivated by the same cultivation method as in Example 1 except that the crushed vegetable was not used is shown in Table 1 together with the fruit body weight and the number of days of cultivation. In each of the examples and comparative examples, the number of samples is 20,
The average value obtained in 20 experiments is shown. As is clear from Table 1, even when the vegetable waste that was crushed in place of a part of the sawdust was used, favorable results were obtained which were superior to or inferior to the method in which the ordinary vegetable crushed product was not used in combination.

[0016]

[Table 1]

Example 7 As vegetables, radish and carrot were mixed in an apparently equal amount, and 37% by weight of crushed vegetables, 37% by weight of sawdust, 6% by weight of bran, and 2% by weight of hominie feed were added. The water content was adjusted to 65%, and maitake mushrooms were cultivated in the same manner as in Example 1. Cultivation days were 60 days, and the weight of fruit bodies obtained was 480.
It was g.

[0018]

EFFECTS OF THE INVENTION According to the present invention, the portion of the vegetable that should originally be used as an edible portion was wastefully discarded according to the change in the distribution form. Has come to be used effectively.

Claims (1)

[Claims] 1. A culture medium for use in mushroom bed cultivation of mushrooms, characterized in that a crushed vegetable product is mixed in place of a part of sawdust, and the culture medium for mushroom cultivation is characterized.